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WO2002092669A8 - Procede de preparation de substances absorbantes - Google Patents

Procede de preparation de substances absorbantes

Info

Publication number
WO2002092669A8
WO2002092669A8 PCT/FI2002/000415 FI0200415W WO02092669A8 WO 2002092669 A8 WO2002092669 A8 WO 2002092669A8 FI 0200415 W FI0200415 W FI 0200415W WO 02092669 A8 WO02092669 A8 WO 02092669A8
Authority
WO
WIPO (PCT)
Prior art keywords
monomer
polymerization
initiation
forming
removal
Prior art date
Application number
PCT/FI2002/000415
Other languages
English (en)
Other versions
WO2002092669A1 (fr
Inventor
Yrjoe Maelkki
Merja Marjut Toikka
Antti Jussi Sipilae
Original Assignee
Suomen Viljava Oy
Yrjoe Maelkki
Merja Marjut Toikka
Antti Jussi Sipilae
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suomen Viljava Oy, Yrjoe Maelkki, Merja Marjut Toikka, Antti Jussi Sipilae filed Critical Suomen Viljava Oy
Priority to CA002447520A priority Critical patent/CA2447520A1/fr
Priority to US10/477,809 priority patent/US20040231059A1/en
Priority to EP02722325A priority patent/EP1397419A1/fr
Publication of WO2002092669A1 publication Critical patent/WO2002092669A1/fr
Publication of WO2002092669A8 publication Critical patent/WO2002092669A8/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00—Macromolecular compounds derived from lignocellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
    • C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

L'invention se rapporte à un procédé de préparation de substances absorbantes à partir de matières lignocellulosiques, dont la paille de céréales, les écorces ou cosses de graines de céréales, des feuilles végétales, de bagasse, de jute ou de copeaux. Le procédé de cette invention comprend des étapes essentielles, à savoir le pré-traitement alcalin en vue de l'élimination partielle de lignine et d'hémicellulose, le traitement d'initiation en vue de la formation de radicaux réactifs, l'addition d'au moins un monomère et un agent de réticulation et finalement la polymérisation. On recense également un traitement antérieur, à savoir le nettoyage à l'eau en vue de l'élimination de corps étrangers et/ou de composants perturbateurs, et éventuellement l'extraction par voie humide ou une autre défibration en vue de l'augmentation de la surface réactive. Afin d'entamer le traitement, on prévoit un produit chimique oxydant dont un peroxyde d'oxygène, alors que pour le monomère on prévoit des composés contenant un groupe vinyle dont l'acide acrylique. En vue d'obtenir ou d'améliorer les propriétés d'échange ionique, on peut ajouter un groupe atomique ionisable dans un monomère ou le former après la polymérisation.
PCT/FI2002/000415 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes WO2002092669A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002447520A CA2447520A1 (fr) 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes
US10/477,809 US20040231059A1 (en) 2001-05-16 2002-05-15 Method for preparation of absorbing substances
EP02722325A EP1397419A1 (fr) 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20011034A FI113375B (fi) 2001-05-16 2001-05-16 Menetelmä absorboivien aineiden valmistamiseksi lignoselluloosamateriaalista
FI20011034 2001-05-16

Publications (2)

Publication Number Publication Date
WO2002092669A1 WO2002092669A1 (fr) 2002-11-21
WO2002092669A8 true WO2002092669A8 (fr) 2003-07-24

Family

ID=8561214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000415 WO2002092669A1 (fr) 2001-05-16 2002-05-15 Procede de preparation de substances absorbantes

Country Status (5)

Country Link
US (1) US20040231059A1 (fr)
EP (1) EP1397419A1 (fr)
CA (1) CA2447520A1 (fr)
FI (1) FI113375B (fr)
WO (1) WO2002092669A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122815B (fi) * 2005-04-18 2012-07-13 Cerefi Oy Menetelmä lignoselluloosamateriaalien ja niistä saatujen jakeiden fraktioimiseksi
FI20096198A0 (fi) * 2009-11-18 2009-11-18 Valtion Teknillinen Hapetettu ligniinipitoinen aine, sen käyttö sekä menetelmä saastuneiden nesteiden puhdistamiseksi
JP6063416B2 (ja) * 2014-06-10 2017-01-18 デクセリアルズ株式会社 水浄化剤、及び水浄化方法
WO2018178515A1 (fr) * 2017-03-29 2018-10-04 Lappeenrannan Teknillinen Yliopisto Matériau lignocellulosique extrait utilisé comme adsorbant et utilisations associées
WO2018236293A1 (fr) * 2017-06-20 2018-12-27 Mitr Phol Sugarcane Research Center Co., Ltd. Matériau cellulosique absorbant
CN109731435B (zh) * 2019-01-17 2021-10-29 江苏省农业科学院 一种纤维素基甲醛吸附剂在吸附甲醛的应用
CN119019753A (zh) * 2024-10-25 2024-11-26 宁波尼可海绵科技有限公司 一种海绵制品及其制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028290A (en) * 1975-10-23 1977-06-07 Hercules Incorporated Highly absorbent modified polysaccharides
US4036588A (en) * 1976-03-09 1977-07-19 Research Corporation Method of increasing the water absorption of cellulose-containing materials
US4806475A (en) * 1983-12-28 1989-02-21 The United States Of America As Represented By The Secretary Of Agriculture Alkaline peroxide treatment of agricultural byproducts
FR2574826B1 (fr) * 1984-12-14 1987-01-09 Du Pin Cellulose Procede de preparation de cellulose modifiee lui conferant des proprietes absorbantes ameliorees
US4818598A (en) * 1985-06-28 1989-04-04 The Procter & Gamble Company Absorbent structures
FR2628764B1 (fr) * 1988-03-16 1990-10-12 Du Pin Cellulose Procede de fabrication de produits fibreux a base de cellulose modifiee presentant des proprietes absorbantes ameliorees et produits obtenus
US4842877A (en) * 1988-04-05 1989-06-27 Xylan, Inc. Delignification of non-woody biomass

Also Published As

Publication number Publication date
FI113375B (fi) 2004-04-15
FI20011034L (fi) 2002-11-17
CA2447520A1 (fr) 2002-11-21
US20040231059A1 (en) 2004-11-25
EP1397419A1 (fr) 2004-03-17
FI20011034A0 (fi) 2001-05-16
WO2002092669A1 (fr) 2002-11-21

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