GB861822A - 2-bromo-1:1:1:2-tetrafluoroethane and process of making the same - Google Patents

2-bromo-1:1:1:2-tetrafluoroethane and process of making the same

Info

Publication number
GB861822A
GB861822A GB1940158A GB1940158A GB861822A GB 861822 A GB861822 A GB 861822A GB 1940158 A GB1940158 A GB 1940158A GB 1940158 A GB1940158 A GB 1940158A GB 861822 A GB861822 A GB 861822A
Authority
GB
United Kingdom
Prior art keywords
antimony
tetrafluoroethane
bromo
fluorochloride
making
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB1940158A
Inventor
Charles Walter Suckling
James Raventos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1940158A priority Critical patent/GB861822A/en
Publication of GB861822A publication Critical patent/GB861822A/en
Expired legal-status Critical Current

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
    • C07C19/14—Acyclic saturated compounds containing halogen atoms containing fluorine and bromine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
    • C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
    • C07C17/206—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being HX

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises 2-bromo-1 : 1 : 1 : 2-tetrafluoroethane, and the preparation thereof by heating a compound of the general formula CXYZ-CHVBr (wherein each of X, Y and Z is Br, Cl or F; and wherein V is Br or F, but when X, Y and Z are all F, V is Br) with substantially anhydrous hydrogen fluoride at a temperature in the range 80-200 DEG C. in the presence of an antimony fluorochloride catalyst containing at least 20% of pentavalent antimony.ALSO:An "antimony fluorochloride" catalyst, for use in making 2-bromo-1,1,1,2-tetrafluoroethane from other pentahalogen ethanes (see Group IV (b)), comprises either a mixture of antimony fluorides and chlorides or a fluorochloride, some part of the catalyst containing pentavalent antimony. It is made by introducing into a reaction vessel hydrogen fluoride together with antimony pentachloride or an appropriate mixture of antimony trichloride and antimony pentachloride and heating them to bring about reaction.
GB1940158A 1958-06-17 1958-06-17 2-bromo-1:1:1:2-tetrafluoroethane and process of making the same Expired GB861822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1940158A GB861822A (en) 1958-06-17 1958-06-17 2-bromo-1:1:1:2-tetrafluoroethane and process of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1940158A GB861822A (en) 1958-06-17 1958-06-17 2-bromo-1:1:1:2-tetrafluoroethane and process of making the same

Publications (1)

Publication Number Publication Date
GB861822A true GB861822A (en) 1961-03-01

Family

ID=10128744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1940158A Expired GB861822A (en) 1958-06-17 1958-06-17 2-bromo-1:1:1:2-tetrafluoroethane and process of making the same

Country Status (1)

Country Link
GB (1) GB861822A (en)

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