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WO1993010203A1 - Refrigerant comprenant de l'octafluorobutane - Google Patents

Refrigerant comprenant de l'octafluorobutane Download PDF

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Publication number
WO1993010203A1
WO1993010203A1 PCT/JP1992/001502 JP9201502W WO9310203A1 WO 1993010203 A1 WO1993010203 A1 WO 1993010203A1 JP 9201502 W JP9201502 W JP 9201502W WO 9310203 A1 WO9310203 A1 WO 9310203A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
chf
present
chfcf
group
Prior art date
Application number
PCT/JP1992/001502
Other languages
English (en)
Japanese (ja)
Inventor
Yukio Omure
Masahiro Noguchi
Katsuki Fujiwara
Hiroshi Momota
Original Assignee
Daikin Industries, Ltd.
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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO1993010203A1 publication Critical patent/WO1993010203A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
    • C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/22—All components of a mixture being fluoro compounds

Definitions

  • Refrigerant consisting of octafluorobenzene
  • the present invention relates to a novel refrigerant.
  • a working fluid or a refrigerant As a working fluid or a refrigerant, a chlorofluoroalkane, an azeotropic composition thereof, and a composition having a composition in the vicinity thereof have been known.
  • the working fluids for refrigerators at present are CFC11 (trichlorofluorometer), CFC12 (dichlorodifluorometer) and CFC114.
  • New paper Demand is increasing year by year due to the spread of air conditioning and refrigeration equipment. Restrictions on the use and production of these refrigerants have been imposed by all current social organizations, including living environments, food storage and transportation. Due to its large impact on the public, the development of new refrigerants that have no or very low risk of causing ozone depletion has become an urgent issue.
  • Promising compounds that can be substituted for the above-mentioned chlorofluoroalkanes include chlorofluoroalkanes or fluoroalkanes containing a hydrogen atom, such as HCFC21 Fluoromethane), HFC23 (Trifluoromethane), HFC32 (Difluoromethane), HCFC123 (Trichlorofluoroethane), HCFC124 (Monochlorotetrafluoroethane), HFC125 (Pentafluoroethan), HCFC13a (monochlorotrifluoroethane), HFC134a (tetrafluorene), HCFC144b (monochlorodifluoroethane), HFC143 a (trifluo).
  • chlorofluoroalkanes or fluoroalkanes containing a hydrogen atom such as HCFC21 Fluoromethane), HFC23 (Trifluoromethane), HFC32 (Difluoromethan
  • HCFC123 is an ODP It is not much regulated (e.g., about 1Z50 for CFC 11), but may be more toxic than CFC 11 and may have 0 DP in the future. It is hoped that this will be replaced by a compound from Zeguchi.
  • the present invention provides a refrigerant that has low toxicity to the human body, has zero ODP, has excellent performance as a refrigerant, and does not substantially involve a change in composition during a phase change during equipment operation. Is the main purpose.
  • the present inventor has conducted various studies in view of the above-mentioned state of the art. As a result, they have found that a refrigerant composed of a fluorinated hydrocarbon having a specific structure has requirements meeting its purpose.
  • the present invention provides CF n CF 2 CH 2 CF 3 (1,1,1,2,2,4,4,4-octanol phenol) and CF 3 CH (CHF 2 ) CF n (2— Difluoromethyl-1,1,1,3,3,3—tetrafluoroprono.
  • CHF 2 CF (CHF 2 ) provides a refrigerant selected from the group consisting of CF 3 (2-difluoromethyl—1,1,2,3,3,3-tetrafluoropropane). 0
  • the present invention relates to CF 3 CF 2 CH. CF 3 ⁇
  • An object of the present invention is to provide a refrigerator that operates using one type of refrigerant selected from the group consisting of:
  • the present invention relates to CF. CF 2 CH £ CF 3 ,
  • CHF 2 CF (CHF 2 ) provides use as one type of refrigerant selected from the group consisting of CF 3 .
  • Preferred refrigerants used in the present invention include CF 3 CF 2 CH 2 CF 3 , CF ⁇ CH (CHF £ ) ⁇ , and CF.
  • C New paper Four types of HFCF 2 CHF 2 and CF 3 CF 2 CF 2 CH 2 F are mentioned.
  • the refrigerant of the present invention may contain another refrigerant to such an extent that its performance is not impaired.
  • the six types of fluorinated hydrocarbons used in the present invention are all known compounds and are produced according to known methods.
  • the main physical properties of the refrigerant used in the present invention are as shown in Table 1 below.
  • Refrigerant CF 0 CF 2 CH 2 CF 3 (marked below (a), molecular weight 200)
  • Refrigerant CHF 2 CF (CHF 2 ) CF 3 (hereinafter referred to as refrigerant) ( molecular weight 200 2
  • Ozone destruction coefficient 0 A stabilizer may be used in combination with the refrigerant of the present invention, if necessary. That is, when a high degree of stability is required under severe use conditions, epoxides such as propylene oxide, 1,2-butylene oxide, and glycidyl; dimethyl phosphite; Phosphites such as triisopropyl phosphite, diphenyl phosphite; triphosphorites such as trilaurine oletrito phosphite; tripheno Phosphine sulfides such as xyphosphin sulfide and trimethyl phosphine sulfide; boric acid, trinethyl bolate, trifluorophenyl borane, phenyl boronin New paper Boron compounds such as acid and diphenylboronic acid; 2,6-di-tert-butyl.
  • epoxides such as propylene oxide, 1,2-
  • Phenols such as lacresole; nitroalkanes such as nitromethane and nitroethane; acrylate esters such as methyl acrylate and ethyl acrylate; and other dioxane, tert.-butanol, and pen as possible out to the stabilizer such as adding approximately 0 0 1-5% of the refrigerant weight; Taerisuri Torr, Nono 0 Raisopuro Bae Nirutoruen..
  • ethers such as dimethyl ether and pentafluoromethyl ether
  • amines such as perfluoroethylamine
  • LPG liquid phase polymer
  • the refrigerant according to the present invention has a relatively excellent refrigerant performance because the compressor gas discharge temperature is low and the evaporating pressure and the condensing pressure are in appropriate ranges.
  • the refrigerant (e) and the refrigerant (f) can be easily operated in a range higher than the heat cycle temperature range implemented in the present invention because the evaporating pressure and the condensing pressure are relatively low.
  • the refrigerant (a) and the refrigerant (b) have a refrigerating capacity equal to or higher than that of the CFC 11 and exhibit an overall excellent performance that the coefficient of performance is about the same. Therefore, it can be replaced with CFC11 used as a refrigerant for turbochargers.
  • the refrigerant according to the present invention is composed of a single compound, liquid management, reuse after recovery, and the like can be advantageously performed.
  • the refrigerant according to the present invention has low solubility in a polymer compound, it can be used as it is without changing the material in an existing refrigerator.
  • the refrigerant according to the present invention has excellent compatibility with PAG (polyalkylene glycol) -based oil, polyester-based oil and the like.
  • the refrigerant according to the present invention is nonflammable and has good thermal stability
  • the evaporation temperature of the refrigerant in the condenser is 5 ° C
  • the condensing temperature is 40 ° C
  • the superheat temperature at the compressor inlet is 12 ° C and the supercooling degree at the condenser outlet is 5 ° C. 0 Driving was performed.
  • Polyalkylene glycol was used as refrigerating machine oil.
  • Table 2 shows the coefficient of performance (COP), refrigeration capacity [kcalZm 3 ], and compressor gas discharge temperature (° C).
  • Table 2 also shows the results of CFC 11 for comparison.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lubricants (AREA)

Abstract

Réfrigérant comprenant un élément sélectionné dans le groupe formé des composés suivants: CF3CF2CH2CF3, CF3CH(CHF2)CF3, CF3CHFCF2CHF2, CF3CF2CF2CH2F, CHF2CF2CF2CHF2 et CHF2CF(CHF2)CF3. On décrit également un réfrigérateur contenant ce réfrigérant, ainsi que son utilisation.
PCT/JP1992/001502 1991-11-19 1992-11-18 Refrigerant comprenant de l'octafluorobutane WO1993010203A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3303386A JPH05140547A (ja) 1991-11-19 1991-11-19 オクタフルオロブタンからなる冷媒
JP3/303386 1991-11-19

Publications (1)

Publication Number Publication Date
WO1993010203A1 true WO1993010203A1 (fr) 1993-05-27

Family

ID=17920398

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/001502 WO1993010203A1 (fr) 1991-11-19 1992-11-18 Refrigerant comprenant de l'octafluorobutane

Country Status (2)

Country Link
JP (1) JPH05140547A (fr)
WO (1) WO1993010203A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010061A1 (fr) * 1994-09-29 1996-04-04 E.I. Du Pont De Nemours And Company Compositions a base d'octafluorobutane
EP0735124A1 (fr) * 1995-03-28 1996-10-02 Elf Aquitaine Composite actif à structure feuilletée et son utilisation comme milieu réactionnel
US5562854A (en) * 1994-09-29 1996-10-08 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5562853A (en) * 1994-09-29 1996-10-08 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4,-octafluorobutane compositions
EP0738772A1 (fr) * 1995-04-20 1996-10-23 Elf Atochem S.A. Mélanges pseudo-azéotropiques à base de difluorométhane et de pentafluorodiméthyléther, et leurs applications comme fluides frigorigènes
US5626790A (en) * 1992-11-19 1997-05-06 E. I. Du Pont De Nemours And Company Refrigerant compositions including 1,1,2-trifluoroethane and hexafluoropropane
US5681800A (en) * 1994-12-08 1997-10-28 Exxon Chemical Patents Inc. Biodegradable branched synthetic ester base stocks and lubricants formed therefrom
US5688431A (en) * 1994-09-29 1997-11-18 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5705471A (en) * 1994-09-29 1998-01-06 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-octaflourobutane compositions
US5730894A (en) * 1996-04-16 1998-03-24 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-octafluorobutane azeotropic (like) compositions
US6156224A (en) * 1992-06-19 2000-12-05 Matsushita Electric Industrial Co., Ltd. Working fluid containing perfluorodimethylether

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153786A (ja) * 1987-12-11 1989-06-15 Asahi Glass Co Ltd 作動媒体混合物
EP0431458A1 (fr) * 1989-12-07 1991-06-12 Daikin Industries, Limited Composition de nettoyage
JPH03229732A (ja) * 1990-02-02 1991-10-11 Asahi Glass Co Ltd スチレン系樹脂発泡体の製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153786A (ja) * 1987-12-11 1989-06-15 Asahi Glass Co Ltd 作動媒体混合物
EP0431458A1 (fr) * 1989-12-07 1991-06-12 Daikin Industries, Limited Composition de nettoyage
JPH03229732A (ja) * 1990-02-02 1991-10-11 Asahi Glass Co Ltd スチレン系樹脂発泡体の製造方法

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6156224A (en) * 1992-06-19 2000-12-05 Matsushita Electric Industrial Co., Ltd. Working fluid containing perfluorodimethylether
US5626790A (en) * 1992-11-19 1997-05-06 E. I. Du Pont De Nemours And Company Refrigerant compositions including 1,1,2-trifluoroethane and hexafluoropropane
US5653908A (en) * 1994-09-29 1997-08-05 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5705471A (en) * 1994-09-29 1998-01-06 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-octaflourobutane compositions
US5562853A (en) * 1994-09-29 1996-10-08 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4,-octafluorobutane compositions
US5772911A (en) * 1994-09-29 1998-06-30 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-Octafluorobutane compositions
US5562855A (en) * 1994-09-29 1996-10-08 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5562854A (en) * 1994-09-29 1996-10-08 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
WO1996010061A1 (fr) * 1994-09-29 1996-04-04 E.I. Du Pont De Nemours And Company Compositions a base d'octafluorobutane
US5654264A (en) * 1994-09-29 1997-08-05 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5688431A (en) * 1994-09-29 1997-11-18 E. I. Du Pont De Nemours And Company Octafluorobutane compositions
US5681800A (en) * 1994-12-08 1997-10-28 Exxon Chemical Patents Inc. Biodegradable branched synthetic ester base stocks and lubricants formed therefrom
EP0735124A1 (fr) * 1995-03-28 1996-10-02 Elf Aquitaine Composite actif à structure feuilletée et son utilisation comme milieu réactionnel
FR2733241A1 (fr) * 1995-04-20 1996-10-25 Atochem Elf Sa Melanges pseudo-azeotropiques a base de difluoromethane et de pentafluorodimethylether , et leurs applications comme fluides frigorigenes
EP0738772A1 (fr) * 1995-04-20 1996-10-23 Elf Atochem S.A. Mélanges pseudo-azéotropiques à base de difluorométhane et de pentafluorodiméthyléther, et leurs applications comme fluides frigorigènes
US5730894A (en) * 1996-04-16 1998-03-24 E. I. Du Pont De Nemours And Company 1,1,2,2,3,3,4,4-octafluorobutane azeotropic (like) compositions

Also Published As

Publication number Publication date
JPH05140547A (ja) 1993-06-08

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