WO2000023185A1 - Procede de preparation d'une titanozeosilite de type mfi, produit obtenu et ses applications en catalyse - Google Patents
Procede de preparation d'une titanozeosilite de type mfi, produit obtenu et ses applications en catalyse Download PDFInfo
- Publication number
- WO2000023185A1 WO2000023185A1 PCT/FR1999/002479 FR9902479W WO0023185A1 WO 2000023185 A1 WO2000023185 A1 WO 2000023185A1 FR 9902479 W FR9902479 W FR 9902479W WO 0023185 A1 WO0023185 A1 WO 0023185A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- process according
- titanozeosilite
- xerogel
- zeolite
- titanium
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000006555 catalytic reaction Methods 0.000 title abstract description 4
- 239000010457 zeolite Substances 0.000 claims abstract description 28
- 239000010936 titanium Substances 0.000 claims abstract description 27
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 26
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 24
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 22
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 16
- 238000002425 crystallisation Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000010703 silicon Substances 0.000 claims abstract description 15
- 239000011541 reaction mixture Substances 0.000 claims abstract description 14
- 238000001354 calcination Methods 0.000 claims abstract description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 53
- -1 NH 4 F Chemical class 0.000 claims description 32
- 125000004432 carbon atom Chemical group C* 0.000 claims description 31
- 150000002989 phenols Chemical class 0.000 claims description 26
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 15
- 230000008025 crystallization Effects 0.000 claims description 14
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 229920006395 saturated elastomer Polymers 0.000 claims description 10
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 8
- 238000005805 hydroxylation reaction Methods 0.000 claims description 8
- 230000001483 mobilizing effect Effects 0.000 claims description 8
- 125000001424 substituent group Chemical group 0.000 claims description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 8
- 238000002441 X-ray diffraction Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 7
- 229910017855 NH 4 F Inorganic materials 0.000 claims description 6
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 6
- 230000033444 hydroxylation Effects 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 150000002894 organic compounds Chemical class 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000010586 diagram Methods 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 125000001453 quaternary ammonium group Chemical group 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 4
- JQVDAXLFBXTEQA-UHFFFAOYSA-N dibutylamine Chemical compound CCCCNCCCC JQVDAXLFBXTEQA-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 150000004820 halides Chemical class 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 239000012429 reaction media Substances 0.000 claims description 3
- OSBSFAARYOCBHB-UHFFFAOYSA-N tetrapropylammonium Chemical compound CCC[N+](CCC)(CCC)CCC OSBSFAARYOCBHB-UHFFFAOYSA-N 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- WEHWNAOGRSTTBQ-UHFFFAOYSA-N dipropylamine Chemical compound CCCNCCC WEHWNAOGRSTTBQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 125000002950 monocyclic group Chemical group 0.000 claims description 2
- 125000003367 polycyclic group Chemical group 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 claims description 2
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 claims description 2
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 230000000877 morphologic effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 229910001868 water Inorganic materials 0.000 description 15
- 239000000203 mixture Substances 0.000 description 13
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 12
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 150000003254 radicals Chemical class 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 239000002609 medium Substances 0.000 description 9
- 150000001298 alcohols Chemical class 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 239000000499 gel Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000007790 solid phase Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical compound COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 description 4
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 4
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 description 4
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical class [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 4
- QQOMQLYQAXGHSU-UHFFFAOYSA-N 236TMPh Natural products CC1=CC=C(C)C(O)=C1C QQOMQLYQAXGHSU-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- APQHKWPGGHMYKJ-UHFFFAOYSA-N Tributyltin oxide Chemical compound CCCC[Sn](CCCC)(CCCC)O[Sn](CCCC)(CCCC)CCCC APQHKWPGGHMYKJ-UHFFFAOYSA-N 0.000 description 3
- YUDRVAHLXDBKSR-UHFFFAOYSA-N [CH]1CCCCC1 Chemical compound [CH]1CCCCC1 YUDRVAHLXDBKSR-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 description 2
- OGRAOKJKVGDSFR-UHFFFAOYSA-N 2,3,5-trimethylphenol Chemical compound CC1=CC(C)=C(C)C(O)=C1 OGRAOKJKVGDSFR-UHFFFAOYSA-N 0.000 description 2
- QWBBPBRQALCEIZ-UHFFFAOYSA-N 2,3-dimethylphenol Chemical compound CC1=CC=CC(O)=C1C QWBBPBRQALCEIZ-UHFFFAOYSA-N 0.000 description 2
- NKTOLZVEWDHZMU-UHFFFAOYSA-N 2,5-xylenol Chemical compound CC1=CC=C(C)C(O)=C1 NKTOLZVEWDHZMU-UHFFFAOYSA-N 0.000 description 2
- NXXYKOUNUYWIHA-UHFFFAOYSA-N 2,6-Dimethylphenol Chemical compound CC1=CC=CC(C)=C1O NXXYKOUNUYWIHA-UHFFFAOYSA-N 0.000 description 2
- IXQGCWUGDFDQMF-UHFFFAOYSA-N 2-Ethylphenol Chemical compound CCC1=CC=CC=C1O IXQGCWUGDFDQMF-UHFFFAOYSA-N 0.000 description 2
- TUAMRELNJMMDMT-UHFFFAOYSA-N 3,5-xylenol Chemical compound CC1=CC(C)=CC(O)=C1 TUAMRELNJMMDMT-UHFFFAOYSA-N 0.000 description 2
- HMNKTRSOROOSPP-UHFFFAOYSA-N 3-Ethylphenol Chemical compound CCC1=CC=CC(O)=C1 HMNKTRSOROOSPP-UHFFFAOYSA-N 0.000 description 2
- ASHGTJPOSUFTGB-UHFFFAOYSA-N 3-methoxyphenol Chemical compound COC1=CC=CC(O)=C1 ASHGTJPOSUFTGB-UHFFFAOYSA-N 0.000 description 2
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- CIUQDSCDWFSTQR-UHFFFAOYSA-N [C]1=CC=CC=C1 Chemical compound [C]1=CC=CC=C1 CIUQDSCDWFSTQR-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229960001867 guaiacol Drugs 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- BGQMOFGZRJUORO-UHFFFAOYSA-M tetrapropylammonium bromide Chemical compound [Br-].CCC[N+](CCC)(CCC)CCC BGQMOFGZRJUORO-UHFFFAOYSA-M 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- WWGQHTJIFOQAOC-UHFFFAOYSA-N 2,3,5-trichlorophenol Chemical compound OC1=CC(Cl)=CC(Cl)=C1Cl WWGQHTJIFOQAOC-UHFFFAOYSA-N 0.000 description 1
- XGCHAIDDPMFRLJ-UHFFFAOYSA-N 2,3,6-trichlorophenol Chemical compound OC1=C(Cl)C=CC(Cl)=C1Cl XGCHAIDDPMFRLJ-UHFFFAOYSA-N 0.000 description 1
- UMPSXRYVXUPCOS-UHFFFAOYSA-N 2,3-dichlorophenol Chemical compound OC1=CC=CC(Cl)=C1Cl UMPSXRYVXUPCOS-UHFFFAOYSA-N 0.000 description 1
- RANCECPPZPIPNO-UHFFFAOYSA-N 2,5-dichlorophenol Chemical compound OC1=CC(Cl)=CC=C1Cl RANCECPPZPIPNO-UHFFFAOYSA-N 0.000 description 1
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 1
- HOLHYSJJBXSLMV-UHFFFAOYSA-N 2,6-dichlorophenol Chemical compound OC1=C(Cl)C=CC=C1Cl HOLHYSJJBXSLMV-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- KDTZBYPBMTXCSO-UHFFFAOYSA-N 2-phenoxyphenol Chemical compound OC1=CC=CC=C1OC1=CC=CC=C1 KDTZBYPBMTXCSO-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- LCHYEKKJCUJAKN-UHFFFAOYSA-N 2-propylphenol Chemical compound CCCC1=CC=CC=C1O LCHYEKKJCUJAKN-UHFFFAOYSA-N 0.000 description 1
- NGFPWHGISWUQOI-UHFFFAOYSA-N 2-sec-butylphenol Chemical compound CCC(C)C1=CC=CC=C1O NGFPWHGISWUQOI-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- SLRMQYXOBQWXCR-UHFFFAOYSA-N 2154-56-5 Chemical compound [CH2]C1=CC=CC=C1 SLRMQYXOBQWXCR-UHFFFAOYSA-N 0.000 description 1
- VPOMSPZBQMDLTM-UHFFFAOYSA-N 3,5-dichlorophenol Chemical compound OC1=CC(Cl)=CC(Cl)=C1 VPOMSPZBQMDLTM-UHFFFAOYSA-N 0.000 description 1
- ZDWSNKPLZUXBPE-UHFFFAOYSA-N 3,5-ditert-butylphenol Chemical compound CC(C)(C)C1=CC(O)=CC(C(C)(C)C)=C1 ZDWSNKPLZUXBPE-UHFFFAOYSA-N 0.000 description 1
- HORNXRXVQWOLPJ-UHFFFAOYSA-N 3-chlorophenol Chemical compound OC1=CC=CC(Cl)=C1 HORNXRXVQWOLPJ-UHFFFAOYSA-N 0.000 description 1
- HBUCPZGYBSEEHF-UHFFFAOYSA-N 3-phenoxyphenol Chemical compound OC1=CC=CC(OC=2C=CC=CC=2)=C1 HBUCPZGYBSEEHF-UHFFFAOYSA-N 0.000 description 1
- CYEKUDPFXBLGHH-UHFFFAOYSA-N 3-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC(O)=C1 CYEKUDPFXBLGHH-UHFFFAOYSA-N 0.000 description 1
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- QHPQWRBYOIRBIT-UHFFFAOYSA-N 4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C=C1 QHPQWRBYOIRBIT-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 238000010268 HPLC based assay Methods 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- NPAXBRSUVYCZGM-UHFFFAOYSA-N carbonic acid;propane-1,2-diol Chemical compound OC(O)=O.CC(O)CO NPAXBRSUVYCZGM-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000022244 formylation Effects 0.000 description 1
- 238000006170 formylation reaction Methods 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical compound [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000003880 polar aprotic solvent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000005622 tetraalkylammonium hydroxides Chemical class 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/89—Silicates, aluminosilicates or borosilicates of titanium, zirconium or hafnium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/031—Precipitation
- B01J37/033—Using Hydrolysis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B37/00—Compounds having molecular sieve properties but not having base-exchange properties
- C01B37/005—Silicates, i.e. so-called metallosilicalites or metallozeosilites
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/60—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by oxidation reactions introducing directly hydroxy groups on a =CH-group belonging to a six-membered aromatic ring with the aid of other oxidants than molecular oxygen or their mixtures with molecular oxygen
Definitions
- the present invention relates to a new process for preparing a titanozeosilite of MFI type, the product obtained and its various applications in the field of catalysis.
- Titanium siiicalites the (TS-1) prepared in a fluoride medium are named "titanozeosilites” to distinguish them from those which are prepared in medium OH ".
- titanozeosilites we have described in EP-A-0292363, a process for preparing a titanozeosilite which consists:
- a reaction mixture in an aqueous medium containing at least one source of silicon, for example an aerosil type silica, a source of titanium, in particular a titanium tetraikoxide, a mobilizing agent constituted by fluoride ions and a structuring agent, preferably tetrapropylammonium bromide; the pH of this mixture being maintained between approximately 1.5 and approximately 10.5,
- a source of silicon for example an aerosil type silica
- a source of titanium in particular a titanium tetraikoxide
- a mobilizing agent constituted by fluoride ions and a structuring agent preferably tetrapropylammonium bromide
- This process for preparing a titanozeosilite leads to the production of an MFI-type zeolite with a monoclinic structure.
- the crystals obtained have a parallelepiped shape but their size is relatively large, greater than 5 ⁇ m which leads to the production of a zeolite which has catalytic properties which are not entirely satisfactory.
- the object of the present invention is to provide a process for the preparation of a titanozeosilite allowing access to a titanozeosilite having improved catalytic performance.
- a process has now been found, and this is the subject of the present invention, for the preparation of a titanozeosilite which consists of:
- amorphous xerogel (Ti ⁇ 2-Si ⁇ 2) comprising at least the silicon and titanium elements with a solution comprising at least one structuring agent and one mobilizing agent F " ,
- the titanozeosilite obtained according to this impregnation technique has morphological and structural characteristics which distinguish it from that obtained according to EP-A-0 292 363.
- the titanozeosilite obtained is a zeolite with an MFI structure based on silicon oxide and titanium oxide and which, after calcination, corresponds to the following formula:
- the titanozeosilite contains fluorine, the fluorine concentration, after calcination, being advantageously between 0.01 and 0.8%.
- fluorine can be eliminated without modifying the structure of the titanozeosilite obtained.
- the titanozeosilite obtained according to the process of the invention has an orthorhombic crystal system and an X-ray diffraction diagram defined in table (I).
- table (I) the extreme values of the various reticular equidistances dhkl are given and correspond to the limit concentrations of titanium incorporated into the framework of the zeolite or more precisely to the ratio
- titanozeosilites can in particular and advantageously be carried out by establishing their X-ray diffraction diagram.
- This diffraction diagram can be obtained using a diffractometer using the conventional method of powders with K radiation from copper.
- ) is calculated, as a function of the absolute error ⁇ (2 ⁇ ), by the Bragg relation.
- An absolute error ⁇ (2 ⁇ ) equal to ⁇ 0.2 ° is commonly accepted.
- the relative intensity l / l 0 assigned to each value of dhkl is estimated from the height of the corresponding diffraction peak.
- the orthorhombic symmetry is characteristic of the process of the invention, namely a synthesis in a fluoride medium and the technique impregnation of xerogel. Indeed, the symmetry is orthorhombic unlike EP-A 0 292 363 which describes a zeolite with a monoclinic structure.
- the morphology of the crystals is demonstrated by scanning electron microscopy.
- the crystals are in the form of prismatic rods of the following medium size:
- the zeolite is prepared according to a process which consists of:
- amorphous xerogel (Ti ⁇ 2-Si ⁇ 2) comprising at least the silicon and titanium elements with a solution comprising at least one structuring agent and a mobilizing agent F " , - subjecting the reaction mixture to heating up to the temperature of crystallization of the zeolite,
- xerogel a dry, amorphous gel composed of a mixed oxide TiO 2 - Si0 2 .
- a preferred method of preparation consists in hydrolyzing in an acid medium a source of silicon and then adding a source of titanium.
- the soil thus prepared is gelled by adding a base or by heating.
- the gel is dried at an appropriate temperature.
- silicon element with oxidation state +4 can be used.
- silicas in the form of hydrogels, aerogels, xerogels, colloidal suspensions, silicas resulting from precipitation from solutions of soluble silicates or from hydrolysis of silicic esters as Si (OCH 3 ) 4 , Si (OC2H 5 ).
- hydrolyzable tetravalent silicon compounds such as silicon halides or the like.
- the source of silicon is preferably chosen from alkylsilicates, tetraethylsilicate being that which is most preferred.
- titanium oxides and hydroxides crystallized or amorphous, tetravalent titanium compounds which can be hydrolyzed
- halides such as halides (TiCL)
- organic derivatives of titanium such as, for example, alkyl o-titanates, preferably tetraethyl o-titanate or tetrabutyl o-titanate, soluble titanium salts such as TiOS0 4 , TiOCI 2 , (NH ⁇ TiO ⁇ O ⁇ .
- sources of silica or titanium oxide compounds comprising the elements Si and Ti such as, for example, glasses or gels based on the oxides of these two elements.
- the sources of silica and titanium oxide can be used in the soluble form or in powdery solids but also in the form of agglomerates such as, for example, extruded pellets which can be transformed into titanozeosilite of desired structure without modification of shape.
- the Ti ⁇ 2 Si ⁇ 2 molar ratio in this xerogel is preferably between 30 and 200, more preferably between 35 and 100.
- a source of silicon is hydrolyzed in an acid solution (for example, dilute HCl), then a source of titanium in the same solution, in order to obtain a clear solution.
- an acid solution for example, dilute HCl
- the hydrolysis of the silicon source is preferably started with a dilute acid having a concentration advantageously between 0.01 and 2 N.
- the amount of acid involved is such that the H 2 O / Si ratio is between 2 and 10 and preferably between 3 and 5.
- the source of titanium is added.
- a preferred variant consists in diluting the source of titanium by adding an organic solvent, for example an alcohol with low carbon condensation, for example from 1 to 5 carbon atoms, and preferably isopropanol is used.
- an organic solvent for example an alcohol with low carbon condensation, for example from 1 to 5 carbon atoms, and preferably isopropanol is used.
- the amount of solvent represents from 50% to 85% of the volume represented by the source of titanium and of the organic solvent.
- the hydrolysis operation can be carried out from 0 ° C to room temperature (generally 15 ° C - 25 ° C). It is also possible to exceed this temperature.
- a base which can be of mineral origin, for example NH4OH or of organic origin. In the latter case, it is preferred to use an organic compound which also has the role of structuring agent and preferably a quaternary ammonium hydroxide.
- the basic solution used generally has a high concentration preferably between 10 and 40% by weight.
- the amount of base added is such that the pH of the solution obtained is between approximately 5 and approximately 7.
- the operation is carried out at a temperature advantageously between 0 and 25 ° C.
- the gel obtained is subjected to drying at a temperature advantageously chosen between 50 and 120 ° C., under atmospheric pressure or under reduced pressure chosen between 1 mm of mercury and atmospheric pressure.
- a xerogel is obtained which has a large specific surface area varying most often between 400 m 2 / g and 700 m 2 / g.
- the pore size varies widely between 5 and 100 ⁇ but the xerogel has a large microporous volume since almost 80% of the volume is constituted by micropores having from 3 to 20 ⁇ .
- the xerogel obtained is impregnated using a solution comprising an organic compound used as a structuring agent and a mobilizing agent, of the fluoride type.
- the mobilizing agent F " is introduced in the form of acid and / or salt (s), not containing alkaline cations, and / or of compounds releasing F " , by hydrolysis.
- hydrofluoric acid By way of example, mention may be made of hydrofluoric acid; salts such as for example NH 4 F, NH HF2, NH (C3H) 4 F, hydrolysable compounds releasing fluoride anions in the reaction medium, such as SiF 4 , (NH) 2 SiF 6 , (NH ⁇ TiFg or the like .
- Ammonium fluoride or acidic ammonium fluoride are preferred salts. Indeed; these salts are very soluble and do not provide any undesirable element, and, moreover, they are easily eliminated at the end of crystallization.
- the structuring agent directs and stabilizes the formation of the zeolite.
- structuring agents which are suitable for the invention, mention may be made of quaternary ammonium hydroxides, preferably tetraalkylammonium hydroxides, and more particularly tetrapropylammonium hydroxides, tetrabutylammonium, or alternatively amines such as in particular dipropylamine, tripropylamine, dibutylamine, tributylamine.
- a preferred variant of the process of the invention consists in using not quaternary ammonium hydroxides which are expensive reactants but the tetraikylammonium halides, preferably the tetrapropylammonium and tetrabutylammonium halides, and even more preferably bromide or chloride .
- the structuring agent is in the form of a salt of an amine or of a quaternary ammonium supplying the cations mentioned above.
- composition of the reaction mixture is characterized by a low water content.
- the amount of water is determined so that it allows wetting of the xerogel.
- the H2 ⁇ / Si ⁇ 2 ratio is less than 10, preferably between 3 and 10, and, more preferably, between 4 and 6.
- the molar ratio F7SÎO2 advantageously varies between 0.05 and 1.0, preferably between 0, 05 and 0.5.
- the molar ratio Q / Si ⁇ 2 (in which Q represents the organic structuring agent) is between 0.04 and 1.0, preferably between 0.05 and 0.5 and, more preferably, between 0.10 and 0 , 45.
- the crystallization of the zeolite can be obtained by heating the xerogel for the time necessary for crystallization, according to the standard procedure for the synthesis of zeolite well known to those skilled in the art.
- the suitable temperatures are between 90 and 210 ° C, preferably between 100 and 200 ° C and, more preferably, between 125 and 180 ° C.
- the duration of heating can be between 6 hours and
- This heating and this crystallization are preferably carried out in a container or autoclave coated with a layer such as for example polytetrafluoroethane.
- a variant of the process of the invention consists in adding crystallized seeds of determined structure, MFI, in a proportion which does not exceed a few weight percentages (generally ⁇ 5%) relative to the weight of Si ⁇ 2 + Ti ⁇ 2 engaged.
- the addition of seeds facilitates the crystallization of the zeolite and advantageously reduces the size of the crystals.
- seeds of crystallization one can use any zeolite having the structure MFI, whatever its chemical composition.
- zeosilite sicalite-1 which is a zeolite equivalent to titanozeosilite, but containing only silicon in its framework. It is also possible to use titanozeosilite seeds originating from a previous manufacture.
- the material obtained is separated according to conventional solid / liquid separation techniques, preferably by filtration. It may be advantageous to carry out a washing operation, preferably with deionized water.
- the material obtained is subjected to drying at a temperature preferably chosen between 50 and 120 ° C., under atmospheric pressure or under reduced pressure chosen between 1 mm of mercury and atmospheric pressure. Finally, it is calcined preferably in air, at a temperature of at least
- the duration of the calcination is most often between 1 and 12 hours.
- the zeolites obtained according to the process of the invention have catalytic properties which allow their use as catalysts or catalyst supports for reactions of transformation of various organic compounds.
- zeolites of the invention can find numerous applications in different oxidation reactions, in particular in the oxidation reactions, of dismutaticn of aromatic compounds such as toluene; conversion of aliphatic carbonyl or olefin compounds; the hydroxylation of aromatic compounds; formylation of aromatic compounds; epoxidation of olefins; cyclization of organic compounds.
- a preferred application of the zeolites of the invention is their use for the hydroxylation reactions of phenolic compounds.
- the process of the invention advantageously applies to phenolic compounds which are soluble in the medium, under the reaction conditions. It is obviously possible to tolerate a certain insolubility but it is preferred that the phenolic compound is soluble in an amount of at least 90% by weight.
- the present invention applies to phenolic compounds of general formula (III): in said formula (III):
- R- (2, R 3 and R 4, identical or different, represent an atom of hydrogenated 'ene or any substituent
- - two R groups and R 2 and / or R 3 and R 4 placed on two vicinal carbon atoms may form together and with the carbon atoms which carry them a cycle
- R - R ' represents a hydrogen atom or a hydrocarbon radical having from 1 to 24 carbon atoms, which can be a saturated or unsaturated, linear or branched acyclic aliphatic radical; a saturated or unsaturated, monocyclic or polycyclic cycloaliphatic radical; a saturated or unsaturated, linear or branched aliphatic radical, carrying a cyclic substituent.
- cyclic substituent is meant a saturated, unsaturated or aromatic carbocycle having, generally, from 4 to 7 carbon atoms, and preferably 6 carbon atoms.
- the process of the invention applies to any phenolic compound corresponding to the general formula (III) and, more particularly, to the phenolic compounds of formula (III) in which R 'represents: a hydrogen atom. a linear or branched alkyl radical having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, and more particularly a methyl or ethyl radical,. a cyclohexyl radical,. a benzyl radical.
- the phenolic compound of formula (III) may carry one or more substituents R-
- the process of the invention applies more preferably to phenolic compounds of formula (III) in which:
- R 0 one of the following groups:
- a hydrogen atom . an alkyl radical, linear or branched, having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl,
- a linear or branched alkenyl radical having from 2 to 6 carbon atoms, preferably from 2 to 4 carbon atoms, such as vinyl, allyl,
- a linear or branched alkoxy radical having from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms such as the methoxy, ethoxy, propoxy, isopropoxy, butoxy, radicals.
- an acyl group having from 2 to 6 carbon atoms,. a radical of formula:
- R5 represents a valence bond or a divalent hydrocarbon radical, linear or branched, saturated or unsaturated, having from 1 to 6 atoms of carbon such as, for example, methylene, ethylene, propylene, isopropylene, isopropylidene
- Q represents a hydrogen atom or a linear or branched alkyl radical having from 1 to 6 carbon atoms
- X symbolizes a halogen atom, preferably a chlorine, bromine or fluorine atom.
- R- R- j , R, R3 and R identical or different, represent R7, one of the following more complex radicals:
- R5 represents a valential bond or a divalent, linear or branched, saturated or unsaturated hydrocarbon radical having from 1 to 6 carbon atoms such as, for example, methylene, ethylene, propylene, isopropylene, isopropylidene and R 0 having the meaning given above and m is an integer from 0 to 4,.
- Rg represents a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or phenyl radical.
- two groups R 1 and R 2 and / or R 3 and R 4 placed on two vicinal carbon atoms can form together and with the carbon atoms which carry them an unsaturated or aromatic carbocycle having from 4 to 7 carbon atoms and, preferably, 6 carbon atoms,
- R - R ' represents a hydrogen atom - R ⁇ , R2, R3 and R, identical or different, represent one of the following groups:
- a halogen atom for a group -CF 3 .
- a cyclohexyl radical for a phenyl radical, - two groups R 1 and R 2 and / or R 3 and R 4 placed on two vicinal carbon atoms can form together and with the carbon atoms which carry them a benzene ring.
- the compounds of formula (III) are chosen in which R ′ represents a hydrogen atom and one of the radicals R-., R2, R3 and R 4 represents a hydroxyl group, a methyl radical or a radical methoxy and the other 3 represent a hydrogen atom.
- phenolic compounds of formula (III) capable of being used in the process of the invention, there may be mentioned more particularly: - those corresponding to formula (III) in which R-
- Ri represents a radical of type R 7 , such as 2-phenoxyphenol, 3-phenoxyphenol.
- phenolic compounds of formula (III) which may be used in the process of the invention, there may be mentioned, without limitation, phenol, o-cresol, m-cresol, p-cresol.
- the phenolic compound of formula (III), the hydrogen peroxide and the zeolitic catalyst are used during the hydroxylation process.
- the hydrogen peroxide used according to the invention can be in the form of an aqueous solution or an organic solution.
- aqueous solutions being commercially more readily available are used.
- the concentration of the aqueous hydrogen peroxide solution is not critical.
- An aqueous solution of hydrogen peroxide can be used, having a concentration ranging, for example, from 20% to 70% by weight of H2O2.
- a dilute solution of hydrogen peroxide its concentration can advantageously be between 20% and 40% by weight.
- the amount of hydrogen peroxide can range up to 1 mole of H2O2 for 1 mole of phenolic compound of formula (III). It is however preferable to obtain an industrially acceptable yield to use a molar ratio hydrogen peroxide / phenolic compound of formula (III) of 0.01 to 0.4 and, preferably, of 0.10 to 0.25.
- reaction is carried out in an aqueous medium.
- the total weight content of water expressed relative to the phenolic compound of formula (III) can vary between 30% and 100%, preferably between 40% and 70%.
- the amount of zeolitic catalyst which is used in the process of the invention can vary within wide limits.
- the catalyst can represent, by weight relative to the phenolic compound of formula (III) used, from 0.1 to 25%, preferably from 3 to 10%.
- the process is carried out continuously, for example by reacting a mixture of phenolic compound (III), of hydrogen peroxide solution on a fixed bed of catalyst, these catalyst / phenolic compound ratios of formula (III) do not make sense and at a given time, there may be an excess weight of catalyst compared to the phenolic compound of formula (III).
- solvents By way of examples of such solvents, mention may be made of water, alcohols such as methanol, ethanol, isopropanol, tert-butanol; ketones such as acetone or methyl isobutyl ketone; nitriles such as acetonitrile; carboxylic acids such as acetic acid; esters of carboxylic acids such as propyl acetate; ethers such as methyltertiobutylether; polar aprotic solvents such as tetrahydrothiophene dioxide (sulfolane), ethylene glycol carbonate, propylene glycol carbonate, N-methylpyrrolidone.
- alcohols such as methanol, ethanol, isopropanol, tert-butanol
- ketones such as acetone or methyl isobutyl ketone
- nitriles such as acetonitrile
- carboxylic acids such as acetic acid
- the hydroxylation of the phenolic compound of formula (III) is carried out at a temperature which can be between 45 ° C. and 150 ° C.
- a preferred variant of the process of the invention consists in choosing the temperature between 50 ° C and 120 ° C, and even more preferably around 80 ° C.
- the reaction is advantageously carried out at atmospheric pressure. It is also possible to operate at a higher temperature and under pressure greater than atmospheric pressure.
- the method according to the invention is simple to implement continuously or discontinuously.
- the following different reagents are introduced in any order, phenolic compound of formula (III), and catalyst.
- the reaction medium is brought to the desired temperature and then the hydrogen peroxide solution is added gradually.
- the zeolitic catalyst is separated according to conventional solid / liquid separation techniques, preferably by filtration and then the untransformed phenolic compound, are separated from the hydroxylation products by the usual means, in particular by distillation and are returned to the reaction zone.
- - TPABr tetrapropylammonium bromide
- - silicalite-1 zeolite equivalent to titanium silicalite, but containing only silicon in its framework.
- TEOS TEOS are hydrolyzed with 14.5 g of an aqueous hydrochloric acid solution at 0.05 mol / l while stirring the mixture for 1 hour at room temperature.
- the solution is stirred for 1 hour at room temperature and then 2 hours at 70 ° C. in order to remove the alcohols (alcohols released by hydrolysis + isopropanol).
- the clear sol thus obtained is gelled by addition of 4.0 g of an aqueous solution of TPAOH at 20% by weight.
- the gel is then dried overnight in an oven at 110 ° C.
- the Si ⁇ 2-Ti ⁇ 2 xerogel thus prepared is finely ground in a mortar before use.
- An aqueous solution is prepared containing 9.6 g of water, 4.25 g of TPABr and 0.6 g of NH F.
- silicalite-1 seeds To this solution are added 0.16 g of silicalite-1 seeds and then 8.0 g of Si ⁇ 2-Ti ⁇ 2 xerogel prepared previously.
- the impregnated xerogel is stirred for approximately 10 min.
- the molar composition reduced to one mole of silica of the reaction mixture is as follows:
- reaction mixture is then crystallized in an autoclave coated internally with polytetrafluoroethane, by heating at 170 ° C for 5 days with stirring (rotary oven).
- the solid phase is separated by filtration, washed with water and dried at 80 ° C. After calcination at 550 ° C for 7 hours, the solid phase is identified by its X-ray diffraction spectrum.
- the titanozeosilite obtained is in the form of prismatic crystals of average size 0.6 x 1, 2 x 2.6 ⁇ m approximately.
- the solution is stirred for 1 hour at room temperature and then for 1 hour at 70 ° C. in order to remove the alcohols (alcohols released by hydrolysis + isopropanol).
- the clear sol thus obtained is gelled by adding 3.0 g of a 20% by weight TPAOH solution.
- the gel is then dried overnight in an oven at 110 ° C.
- the Si ⁇ 2-Ti ⁇ 2 xerogel thus prepared is finely ground in a mortar before use.
- An aqueous solution is prepared containing 4.8 g of water, 2.125 g of TPABr and 0.3 g of NH F.
- the mixture is stirred for approximately 10 min.
- the molar composition reduced to one mole of silica of the reaction mixture is as follows:
- reaction mixture is then crystallized in an autoclave coated internally with polytetrafluoroethane, by heating at 170 ° C for 4 days without stirring.
- the solid phase is separated by filtration, washed with water and dried at 80 ° C. After calcination at 550 ° C for 7 hours, the solid phase is identified by its X-ray diffraction spectrum.
- Titanozeosilite is in the form of prismatic crystals of size 0.4 x 1.0 x 2.0 ⁇ m approximately.
- TEOS TEOS are hydrolyzed with 14.5 g of an aqueous hydrochloric acid solution at 0.05 mol / l while stirring the mixture for 1 hour at room temperature. The solution is then cooled to 0 ° C. and then a solution containing 2.26 g of TBOT and 13.6 g of isopropanol is added dropwise.
- the solution is stirred for 1 hour at room temperature and then 2 h 30 at 70 ° C. in order to remove the alcohols (alcohols released by hydrolysis + isopropanol).
- the clear soil thus obtained is gelled by adding 1 g of an aqueous ammonia solution at 20% by weight.
- the gel is then dried overnight in an oven at 110 ° C.
- the Si ⁇ 2-Ti ⁇ 2 xerogel thus prepared is finely ground in a mortar before use.
- An aqueous solution is prepared containing 4.8 g of water, 2.65 g of TPABr and 0.375 g of NH 4 F.
- the molar composition reduced to one mole of silica of the reaction mixture is as follows:
- reaction mixture is then crystallized in an autoclave coated internally with polytetrafluoroethane, by heating at 170 ° C for 5 days with stirring (rotary oven).
- the solid phase is identified by its X-ray diffraction spectrum.
- the titanozeosilite is in the form of prismatic crystals of size 0.3 x 0.8 x 2.0 ⁇ m approximately.
- Example 4 is repeated, but the titanozeosilite prepared in Example 1 is replaced by the titanozeosilite prepared in Example 3. The following results are obtained:
- Example 6 In the same apparatus as in Example 4, we load:
- the mixture is heated to 80 ° C. with stirring, then 3.0 g of a 30% aqueous hydrogen peroxide solution are injected.
- Example 4 is repeated but with 1.2 g of titanozeosilite. After 2 hours of reaction, the hydrogen peroxide was completely consumed.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99947566A EP1123159A1 (fr) | 1998-10-19 | 1999-10-13 | Procede de preparation d'une titanozeolite de type mfi, produit obtenu et ses applications en catalyse |
AU60966/99A AU6096699A (en) | 1998-10-19 | 1999-10-13 | Method for preparing an mfi-type titanozeosilite, resulting product and uses in catalysis |
JP2000576953A JP2002527346A (ja) | 1998-10-19 | 1999-10-13 | Mfiタイプのチタノゼオシライトの製造方法、それによって得られる生成物およびその触媒への使用 |
NO20011919A NO20011919L (no) | 1998-10-19 | 2001-04-18 | Fremgangsmåte for fremstilling av en MFI-type titanzeosilitt, det oppnådde produkt og anvendelse i katalyse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR98/13077 | 1998-10-19 | ||
FR9813077A FR2784671B1 (fr) | 1998-10-19 | 1998-10-19 | Procede de preparation d'une titanozeosilite de type mfi, produit obtenu et ses applications en catalyse |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000023185A1 true WO2000023185A1 (fr) | 2000-04-27 |
Family
ID=9531723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1999/002479 WO2000023185A1 (fr) | 1998-10-19 | 1999-10-13 | Procede de preparation d'une titanozeosilite de type mfi, produit obtenu et ses applications en catalyse |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1123159A1 (fr) |
JP (1) | JP2002527346A (fr) |
CN (1) | CN1324269A (fr) |
AU (1) | AU6096699A (fr) |
FR (1) | FR2784671B1 (fr) |
NO (1) | NO20011919L (fr) |
WO (1) | WO2000023185A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101497451B (zh) * | 2008-01-31 | 2011-07-20 | 中国石油化工股份有限公司 | 介孔钛硅材料的制备方法 |
CN101935052B (zh) * | 2009-06-30 | 2012-05-30 | 中国石油化工股份有限公司 | 一种合成钛硅沸石材料的方法 |
US8247620B2 (en) | 2006-09-04 | 2012-08-21 | Rhodia Operations | Production of highly pure hydroquinone |
US8628849B2 (en) | 2007-12-19 | 2014-01-14 | Rhodia Operations | Method for preparing purified pyrocatechol |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102320619B (zh) * | 2011-10-06 | 2014-07-23 | 大连理工大学 | 一种钛硅分子筛ts-1的合成方法 |
TWI471299B (zh) * | 2012-10-04 | 2015-02-01 | China Petrochemical Dev Corp Taipei Taiwan | Hydroxylation of phenol |
WO2015027391A1 (fr) * | 2013-08-27 | 2015-03-05 | 杭州传奇环保工程有限公司 | Dispositif de mise sous pression de fluide avec fonction de filtrage |
FR3067348B1 (fr) | 2017-06-13 | 2019-06-28 | Rhodia Operations | Compositions comprenant de l'hydroquinone et du catechol, procede de preparation de ces compositions |
FR3074177A1 (fr) | 2017-11-30 | 2019-05-31 | Rhodia Operations | Compositions comprenant du 4-alkoxyphenol et du 2-alkoxyphenol, et leur procede de preparation |
FR3075198B1 (fr) | 2017-12-15 | 2020-04-03 | Rhodia Operations | Procede d'hydroxylation d'un compose aromatique |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292363A2 (fr) * | 1987-05-22 | 1988-11-23 | Rhone-Poulenc Chimie | Zéolites de structures MFI à base de silice et d'oxyde de titane et procédé de synthèse de celles-ci |
FR2730723A1 (fr) * | 1995-02-17 | 1996-08-23 | Rhone Poulenc Chimie | Zeolithe ti-beta, son procede de preparation et son utilisation comme catalyseur d'oxydation |
WO1997029991A1 (fr) * | 1996-02-16 | 1997-08-21 | Consejo Superior Investigaciones Cientificas | PROCEDE DE PREPARATION D'UNE ZEOLITE BETA CONTENANT Ti ET SANS Al |
WO1998035910A1 (fr) * | 1997-02-14 | 1998-08-20 | Exxon Chemical Patents Inc. | Catalyseurs metalliques a tamis moleculaire |
-
1998
- 1998-10-19 FR FR9813077A patent/FR2784671B1/fr not_active Expired - Fee Related
-
1999
- 1999-10-13 JP JP2000576953A patent/JP2002527346A/ja not_active Withdrawn
- 1999-10-13 AU AU60966/99A patent/AU6096699A/en not_active Abandoned
- 1999-10-13 WO PCT/FR1999/002479 patent/WO2000023185A1/fr not_active Application Discontinuation
- 1999-10-13 CN CN99812361A patent/CN1324269A/zh active Pending
- 1999-10-13 EP EP99947566A patent/EP1123159A1/fr not_active Withdrawn
-
2001
- 2001-04-18 NO NO20011919A patent/NO20011919L/no not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292363A2 (fr) * | 1987-05-22 | 1988-11-23 | Rhone-Poulenc Chimie | Zéolites de structures MFI à base de silice et d'oxyde de titane et procédé de synthèse de celles-ci |
FR2730723A1 (fr) * | 1995-02-17 | 1996-08-23 | Rhone Poulenc Chimie | Zeolithe ti-beta, son procede de preparation et son utilisation comme catalyseur d'oxydation |
WO1997029991A1 (fr) * | 1996-02-16 | 1997-08-21 | Consejo Superior Investigaciones Cientificas | PROCEDE DE PREPARATION D'UNE ZEOLITE BETA CONTENANT Ti ET SANS Al |
WO1998035910A1 (fr) * | 1997-02-14 | 1998-08-20 | Exxon Chemical Patents Inc. | Catalyseurs metalliques a tamis moleculaire |
Non-Patent Citations (1)
Title |
---|
UGUINA M A ET AL: "TS-2 SYNTHESIS FROM WETNESS-IMPREGNATED SIO2-TIO2 XEROGELS", ZEOLITES, vol. 18, no. 5/06, 1 May 1997 (1997-05-01), pages 368 - 378, XP000695537 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8247620B2 (en) | 2006-09-04 | 2012-08-21 | Rhodia Operations | Production of highly pure hydroquinone |
US8628849B2 (en) | 2007-12-19 | 2014-01-14 | Rhodia Operations | Method for preparing purified pyrocatechol |
CN101497451B (zh) * | 2008-01-31 | 2011-07-20 | 中国石油化工股份有限公司 | 介孔钛硅材料的制备方法 |
CN101935052B (zh) * | 2009-06-30 | 2012-05-30 | 中国石油化工股份有限公司 | 一种合成钛硅沸石材料的方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2002527346A (ja) | 2002-08-27 |
EP1123159A1 (fr) | 2001-08-16 |
FR2784671B1 (fr) | 2001-01-12 |
CN1324269A (zh) | 2001-11-28 |
NO20011919L (no) | 2001-06-19 |
NO20011919D0 (no) | 2001-04-18 |
AU6096699A (en) | 2000-05-08 |
FR2784671A1 (fr) | 2000-04-21 |
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