CS179092A3 - Mixtures containing bis/fluoromethyl/ether, process for preparing suchmixtures, and process for preparing difluoromethane from these mixtures - Google Patents

Mixtures containing bis/fluoromethyl/ether, process for preparing suchmixtures, and process for preparing difluoromethane from these mixtures Download PDF

Info

Publication number
CS179092A3
CS179092A3 CS921790A CS179092A CS179092A3 CS 179092 A3 CS179092 A3 CS 179092A3 CS 921790 A CS921790 A CS 921790A CS 179092 A CS179092 A CS 179092A CS 179092 A3 CS179092 A3 CS 179092A3
Authority
CS
Czechoslovakia
Prior art keywords
ether
fluoromethyl
bis
difluoromethane
hydrogen fluoride
Prior art date
Application number
CS921790A
Other languages
Czech (cs)
English (en)
Inventor
Jane Lesley Butcher
Leslie Burgess
Thomas Anthony Ryan
Original Assignee
Ici Plc
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
Priority claimed from GB919112860A external-priority patent/GB9112860D0/en
Priority claimed from GB919112817A external-priority patent/GB9112817D0/en
Priority claimed from GB919112861A external-priority patent/GB9112861D0/en
Priority claimed from GB919124087A external-priority patent/GB9124087D0/en
Priority claimed from GB919126330A external-priority patent/GB9126330D0/en
Application filed by Ici Plc filed Critical Ici Plc
Publication of CS179092A3 publication Critical patent/CS179092A3/cs

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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C43/00—Ethers; Compounds having groups, groups or groups
    • C07C43/02—Ethers
    • C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
    • C07C43/04—Saturated ethers
    • C07C43/12—Saturated ethers containing halogen
    • C07C43/123—Saturated ethers containing halogen both carbon chains are substituted by halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
CS921790A 1991-06-14 1992-06-11 Mixtures containing bis/fluoromethyl/ether, process for preparing suchmixtures, and process for preparing difluoromethane from these mixtures CS179092A3 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB919112860A GB9112860D0 (en) 1991-06-14 1991-06-14 Chemical process
GB919112817A GB9112817D0 (en) 1991-06-14 1991-06-14 Chemical process
GB919112861A GB9112861D0 (en) 1991-06-14 1991-06-14 Chemical process
GB919124087A GB9124087D0 (en) 1991-11-13 1991-11-13 Chemical process
GB919126330A GB9126330D0 (en) 1991-12-11 1991-12-11 Chemical process

Publications (1)

Publication Number Publication Date
CS179092A3 true CS179092A3 (en) 1992-12-16

Family

ID=27517056

Family Applications (1)

Application Number Title Priority Date Filing Date
CS921790A CS179092A3 (en) 1991-06-14 1992-06-11 Mixtures containing bis/fluoromethyl/ether, process for preparing suchmixtures, and process for preparing difluoromethane from these mixtures

Country Status (19)

Country Link
US (3) US5463139A (no)
EP (1) EP0518506B1 (no)
JP (1) JP3177539B2 (no)
KR (2) KR100239227B1 (no)
CN (2) CN1039314C (no)
AT (1) ATE157075T1 (no)
AU (1) AU655022B2 (no)
CA (1) CA2070598C (no)
CS (1) CS179092A3 (no)
DE (1) DE69221673T2 (no)
DK (1) DK0518506T3 (no)
ES (1) ES2106138T3 (no)
FI (1) FI922744A (no)
GB (1) GB9210755D0 (no)
GR (1) GR3025113T3 (no)
HU (1) HUT62249A (no)
IE (1) IE921642A1 (no)
NO (1) NO922321L (no)
TW (1) TW218004B (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE157075T1 (de) * 1991-06-14 1997-09-15 Ici Plc Herstellung von bis(fluormethyl)äther und von difluormethan
GB9126355D0 (en) * 1991-12-11 1992-02-12 Ici Plc Production of hydrofluorocarbons
US5278342A (en) * 1992-03-25 1994-01-11 Hampshire Chemical Corp. Vapor phase chlorination of difluoromethyl methyl ether
GB9208769D0 (en) * 1992-04-23 1992-06-10 Ici Plc Production of bis (fluoromethyl) ether and difluoromethane
GB9212410D0 (en) * 1992-06-11 1992-07-22 Ici Plc Production of difluoromethane
GB9212925D0 (en) * 1992-06-18 1992-07-29 Ici Plc Production of hydrofluorocarbons
FR2730729B1 (fr) * 1995-02-17 1997-04-30 Atochem Elf Sa Procede de coproduction de difluoromethane et de 1,1,1,2-tetrafluoroethane
US5543055A (en) * 1995-06-06 1996-08-06 Hampshire Chemical Corp. Purifications of flourinated dimethyl ethers
FR2736050B1 (fr) 1995-06-29 1997-08-01 Atochem Elf Sa Procede de fabrication du difluoromethane
US6165931A (en) * 1996-04-16 2000-12-26 E. I. Du Pont De Nemours And Company Catalytic hydrofluorination processes and catalysts
FR2777885B1 (fr) * 1998-04-23 2000-06-23 Atochem Elf Sa Procede de fabrication de bis(difluoromethyl) ether et de trifluoromethane
US6469219B1 (en) * 2000-03-16 2002-10-22 Halocarbon Products Corporation Production of fluoromethyl 2,2,2-trifluoro-1-(trifluoromethyl)ethyl ether
CN107739293B (zh) * 2017-10-19 2020-09-25 北京宇极科技发展有限公司 一种从烷基醚气相制备氟代烷烃的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025856B (de) * 1952-04-15 1958-03-13 Gen Aniline & Film Corp Herstellung von Bis-chlormethylaether
US3377394A (en) * 1966-07-15 1968-04-09 Olin Mathieson Methyl fluoride and methylene fluoride process
US4143078A (en) * 1978-05-22 1979-03-06 The Dow Chemical Company Fluorination of methyl ketones
GB2126216B (en) * 1982-08-16 1986-03-12 Ici Plc Preparation of methylene dihalides
US4961321A (en) * 1989-02-28 1990-10-09 W. R. Grace & Co.-Conn. Bis (difluoromethyl) ether refrigerant
GB9124087D0 (en) * 1991-11-13 1992-01-02 Ici Plc Chemical process
ATE157075T1 (de) * 1991-06-14 1997-09-15 Ici Plc Herstellung von bis(fluormethyl)äther und von difluormethan
GB9208769D0 (en) * 1992-04-23 1992-06-10 Ici Plc Production of bis (fluoromethyl) ether and difluoromethane
GB9212410D0 (en) * 1992-06-11 1992-07-22 Ici Plc Production of difluoromethane

Also Published As

Publication number Publication date
KR100239233B1 (ko) 2000-03-15
US5463139A (en) 1995-10-31
ATE157075T1 (de) 1997-09-15
EP0518506A2 (en) 1992-12-16
EP0518506B1 (en) 1997-08-20
CN1071730C (zh) 2001-09-26
CA2070598A1 (en) 1992-12-15
IE921642A1 (en) 1992-12-16
CA2070598C (en) 2004-08-10
AU1721992A (en) 1992-12-17
CN1069258A (zh) 1993-02-24
FI922744A0 (fi) 1992-06-12
TW218004B (no) 1993-12-21
FI922744A (fi) 1992-12-15
HU9201838D0 (en) 1992-09-28
US5623091A (en) 1997-04-22
JPH05294856A (ja) 1993-11-09
NO922321L (no) 1992-12-15
GB9210755D0 (en) 1992-07-08
EP0518506A3 (en) 1993-08-25
NO922321D0 (no) 1992-06-12
JP3177539B2 (ja) 2001-06-18
CN1039314C (zh) 1998-07-29
GR3025113T3 (en) 1998-01-30
US5723684A (en) 1998-03-03
KR100239227B1 (ko) 2000-01-15
HUT62249A (en) 1993-04-28
CN1186798A (zh) 1998-07-08
AU655022B2 (en) 1994-12-01
DK0518506T3 (da) 1998-03-30
DE69221673D1 (de) 1997-09-25
ES2106138T3 (es) 1997-11-01
DE69221673T2 (de) 1997-12-11

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