NO932451L - Pseudoazeotropic mixtures of difluoromethane and 1,1,1-trifluoroethane and their use as a coolant in low-temperature cooling - Google Patents

Pseudoazeotropic mixtures of difluoromethane and 1,1,1-trifluoroethane and their use as a coolant in low-temperature cooling

Info

Publication number
NO932451L
NO932451L NO932451A NO932451A NO932451L NO 932451 L NO932451 L NO 932451L NO 932451 A NO932451 A NO 932451A NO 932451 A NO932451 A NO 932451A NO 932451 L NO932451 L NO 932451L
Authority
NO
Norway
Prior art keywords
difluoromethane
temperature cooling
trifluoroethane
coolant
low
Prior art date
Application number
NO932451A
Other languages
Norwegian (no)
Other versions
NO932451D0 (en
Inventor
Sylvie Macaudiere
Jean-Claude Tanguy
Original Assignee
Elf Autochemie Sa
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 Elf Autochemie Sa filed Critical Elf Autochemie Sa
Publication of NO932451D0 publication Critical patent/NO932451D0/en
Publication of NO932451L publication Critical patent/NO932451L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • 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
    • 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
    • C09K2205/32—The mixture being azeotropic
    • 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
    • C09K2205/40—Replacement mixtures
    • C09K2205/47—Type R502

Landscapes

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

Abstract

For å erstatte den azeotrope blanding av klordifluor-metan og klorpentafluoretan, CFC-502, ved lavtempera-turkjøling, foreslås det å benytte en pseudoazeotrop blanding som på vektbasis inneholder 1 til 15 <& difluormetan, 37ytil 50 * pentafluoretan og 35 til 62 * 1,1,1-tr i fluoretan.De termodynamiske egenskaper for denne blanding er meget nær de til blandingen CFC-502.To replace the azeotropic mixture of chlorodifluoromethane and chloropentafluoroethane, CFC-502, by low temperature cooling, it is proposed to use a pseudoazeotropic mixture which contains on a weight basis 1 to 15% difluoromethane, 37 to 50% pentafluoroethane and 35 to 62 1,1-tr in fluoroethane. The thermodynamic properties of this mixture are very close to those of the CFC-502 mixture.

NO932451A 1992-08-12 1993-07-06 Pseudoazeotropic mixtures of difluoromethane and 1,1,1-trifluoroethane and their use as a coolant in low-temperature cooling NO932451L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9209962A FR2694764B1 (en) 1992-08-12 1992-08-12 Pseudo-azeotropic mixtures of difluoromethane, pentafluoroethane and 1,1,1-trifluoroethane, and their application as refrigerants in low temperature refrigeration.

Publications (2)

Publication Number Publication Date
NO932451D0 NO932451D0 (en) 1993-07-06
NO932451L true NO932451L (en) 1994-02-14

Family

ID=9432815

Family Applications (1)

Application Number Title Priority Date Filing Date
NO932451A NO932451L (en) 1992-08-12 1993-07-06 Pseudoazeotropic mixtures of difluoromethane and 1,1,1-trifluoroethane and their use as a coolant in low-temperature cooling

Country Status (10)

Country Link
EP (1) EP0583179A1 (en)
JP (1) JPH06172227A (en)
KR (1) KR970006717B1 (en)
AU (1) AU4457893A (en)
CA (1) CA2100693A1 (en)
FI (1) FI933541A (en)
FR (1) FR2694764B1 (en)
IL (1) IL106052A0 (en)
NO (1) NO932451L (en)
ZA (1) ZA935843B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568115B1 (en) * 1990-07-26 1996-03-20 E.I. Du Pont De Nemours & Company Incorporated Near-azeotropic blends for use as refrigerants
US5232618A (en) * 1991-09-30 1993-08-03 E. I. Du Pont De Nemours And Company Substantially constant boiling compositions of difluoromethane and trifluoroethane or perfluoroethane
US5736062A (en) * 1993-08-13 1998-04-07 Ausimont S.P.A. Azeotrope-like mixtures utilizable as refrigerating fluids
IT1270960B (en) * 1993-08-13 1997-05-26 Ausimont Spa ALMOST AZEOTROPIC TERNARY MIXTURES WITH REFRIGERANT FLUIDS
FR2733242B1 (en) * 1995-04-20 1997-06-13 Atochem Elf Sa PSEUDO-AZEOTROPIC MIXTURES BASED ON DIFLUOROMETHANE AND PENTAFLUOROETHANE, AND THEIR APPLICATIONS AS REFRIGERANTS
GB9516920D0 (en) * 1995-08-18 1995-10-18 Ici Plc Refrigerant compositions
FR2756294B1 (en) * 1996-11-27 2000-10-20 Atochem Elf Sa USE OF MIXTURES BASED ON DIFLUOROMETHANE AND PENTAFLUOROETHANE AS VERY LOW TEMPERATURE REFRIGERATION FLUIDS
CN1233781C (en) 2003-11-12 2005-12-28 浙江蓝天环保高科技股份有限公司 Environmental protection type refrigerant for replacement of R502

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943388A (en) * 1989-06-28 1990-07-24 Allied-Signal Inc. Azeotrope-like compositions of pentafluoroethane; 1,1,1-trifluoroethane; and chlorodifluoromethane
JP2792191B2 (en) * 1990-04-04 1998-08-27 ダイキン工業株式会社 Coolant
US5185094A (en) * 1990-12-17 1993-02-09 E. I. Du Pont De Nemours And Company Constant boiling compositions of pentafluoroethane, difluoromethane, and tetrafluoroethane
CN1029625C (en) * 1990-12-17 1995-08-30 纳幕尔杜邦公司 Constant boiling compositions of fluorinated hydrocarbons

Also Published As

Publication number Publication date
FR2694764B1 (en) 1994-10-07
FI933541A (en) 1994-02-13
ZA935843B (en) 1994-03-10
NO932451D0 (en) 1993-07-06
FR2694764A1 (en) 1994-02-18
JPH06172227A (en) 1994-06-21
FI933541A0 (en) 1993-08-11
IL106052A0 (en) 1993-10-20
EP0583179A1 (en) 1994-02-16
AU4457893A (en) 1994-02-17
KR970006717B1 (en) 1997-04-29
CA2100693A1 (en) 1994-02-13
KR940004034A (en) 1994-03-14

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