GB1054595A - - Google Patents

Info

Publication number
GB1054595A
GB1054595A GB2028265A GB2028265A GB1054595A GB 1054595 A GB1054595 A GB 1054595A GB 2028265 A GB2028265 A GB 2028265A GB 2028265 A GB2028265 A GB 2028265A GB 1054595 A GB1054595 A GB 1054595A
Authority
GB
United Kingdom
Prior art keywords
alloy
starting material
inert
hexachloropropene
pyrolysing
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
GB2028265A
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 filed Critical
Publication of GB1054595A publication Critical patent/GB1054595A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Hexafluoropropene is made by pyrolysing 2-chloro - 1,1,1,3,3,3 - hexafluoropropane at 650-850 DEG C. for 3-120 seconds. The reaction is suitably effected in a tubular reactor lined with a metal which is inert to the acidic products, e.g. Ag, Pt, an alloy of Ni, Cr and Fe, or an alloy of Ni, Mo and Fe. It is preferred to use the starting material in an undiluted form, but an inert gas, e.g. N2, He, may be added. The starting material may be made by reacting carbon tetrachloride and trichloroethylene, or chloroform and tetrachloroethylene, to give hexachloropropene which is then reacted with HF in the presence of an activated anhydrous chromium oxide catalyst. Examples are provided.
GB2028265A 1964-05-15 1965-05-13 Expired GB1054595A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US367894A US3397248A (en) 1964-05-15 1964-05-15 Process for the preparation of hexafluoropropene

Publications (1)

Publication Number Publication Date
GB1054595A true GB1054595A (en) 1967-01-11

Family

ID=23449052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2028265A Expired GB1054595A (en) 1964-05-15 1965-05-13

Country Status (5)

Country Link
US (1) US3397248A (en)
DE (1) DE1229515B (en)
FR (1) FR1433226A (en)
GB (1) GB1054595A (en)
NL (1) NL6506200A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334783A (en) * 1988-03-14 1994-08-02 Hoechst Aktiengesellschaft Process for the preparation of hexafluoropropene
EP0337127B1 (en) * 1988-03-14 1993-04-21 Hoechst Aktiengesellschaft Process for the preparation of hexafluor propene
US20020032356A1 (en) 2000-07-14 2002-03-14 Gelblum Peter Gideon Synthesis of perfluoroolefins
US20060094911A1 (en) * 2004-10-29 2006-05-04 Rao Velliyur N M Noncatalytic manufacture of 1,1,3,3,3-pentafluoropropene from 1,1,1,3,3,3-hexafluoropropane
CN111302888B (en) * 2020-03-16 2022-05-13 天津绿菱气体有限公司 Separation method of high-purity electronic grade hexafluoropropane isomer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551573A (en) * 1945-11-30 1951-05-08 Du Pont Pyrolysis of chloro-fluoro alkanes
US2981763A (en) * 1960-03-22 1961-04-25 Allied Chem Manufacture of fluorocarbons

Also Published As

Publication number Publication date
NL6506200A (en) 1965-11-16
FR1433226A (en) 1966-03-25
DE1229515B (en) 1966-12-01
US3397248A (en) 1968-08-13

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