GB1062768A - Process for the production of perfluoro-propene - Google Patents

Process for the production of perfluoro-propene

Info

Publication number
GB1062768A
GB1062768A GB2371765A GB2371765A GB1062768A GB 1062768 A GB1062768 A GB 1062768A GB 2371765 A GB2371765 A GB 2371765A GB 2371765 A GB2371765 A GB 2371765A GB 1062768 A GB1062768 A GB 1062768A
Authority
GB
United Kingdom
Prior art keywords
pyrolysis
reactor
products
inert gas
propene
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
GB2371765A
Inventor
Walfried Oese
Helmut Dude
Fritz Reineke
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.)
Fluorwerke Dohna Veb
Original Assignee
Fluorwerke Dohna Veb
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 FR6866A external-priority patent/FR1425724A/en
Application filed by Fluorwerke Dohna Veb filed Critical Fluorwerke Dohna Veb
Publication of GB1062768A publication Critical patent/GB1062768A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/263—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions
    • C07C17/269—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by condensation reactions of only halogenated hydrocarbons

Landscapes

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

Abstract

Perfluoropropene is made by pyrolysis of a mixture of difluorochloromethane and 1,1,1,2-tetrafluoro-2-chloro-ethane at a temperature above 500 DEG C. in a reactor which has previously been rinsed with an inert gas. The inert gas is defined as one which does not react with the starting materials or products at the pyrolysis temperature. It is preferred to use the reactants in equimolar proportions and to effect the rinsing of the reactor at the pyrolysis temperature, which is preferably 750-850 DEG C. The reaction can be effected in steel, nickel, silver or platinum tubes or in a quartz tube over a platinum contact. In the examples, some perfluoroethylene and trifluorochloroethylene are obtained as by-products.
GB2371765A 1965-02-02 1965-06-03 Process for the production of perfluoro-propene Expired GB1062768A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1965V0027671 DE1236497B (en) 1965-02-02 1965-02-02 Process for the production of perfluoropropene
FR6866A FR1425724A (en) 1965-02-24 1965-02-24 Perfluoropropene production process

Publications (1)

Publication Number Publication Date
GB1062768A true GB1062768A (en) 1967-03-22

Family

ID=26001808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2371765A Expired GB1062768A (en) 1965-02-02 1965-06-03 Process for the production of perfluoro-propene

Country Status (2)

Country Link
DE (1) DE1236497B (en)
GB (1) GB1062768A (en)

Cited By (3)

* 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
WO2005058780A2 (en) * 2003-12-17 2005-06-30 E.I. Dupont De Nemours And Company Pyrolysis process
US7271301B2 (en) 2000-07-14 2007-09-18 E.I. Du Pont De Nemours And Company Synthesis of perfluoroolefins

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58904105D1 (en) * 1988-03-14 1993-05-27 Hoechst Ag METHOD FOR THE PRODUCTION OF HEXAFLUORPROPEN.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970176A (en) * 1957-10-31 1961-01-31 Du Pont Pyrolysis of fluorocarbons to hexafluoropropylene
NL269647A (en) * 1960-09-28

Cited By (4)

* 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
US7271301B2 (en) 2000-07-14 2007-09-18 E.I. Du Pont De Nemours And Company Synthesis of perfluoroolefins
WO2005058780A2 (en) * 2003-12-17 2005-06-30 E.I. Dupont De Nemours And Company Pyrolysis process
WO2005058780A3 (en) * 2003-12-17 2005-09-15 Du Pont Pyrolysis process

Also Published As

Publication number Publication date
DE1236497B (en) 1967-03-16

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