FR2376103A2 - PROCESS FOR OBTAINING 1,1-DIFLUOROETHYLENE FROM ACETYLENE - Google Patents

PROCESS FOR OBTAINING 1,1-DIFLUOROETHYLENE FROM ACETYLENE

Info

Publication number
FR2376103A2
FR2376103A2 FR7739641A FR7739641A FR2376103A2 FR 2376103 A2 FR2376103 A2 FR 2376103A2 FR 7739641 A FR7739641 A FR 7739641A FR 7739641 A FR7739641 A FR 7739641A FR 2376103 A2 FR2376103 A2 FR 2376103A2
Authority
FR
France
Prior art keywords
difluoroethylene
acetylene
obtaining
difluoroethane
chloroethane
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.)
Withdrawn
Application number
FR7739641A
Other languages
French (fr)
Inventor
Neithart Schultz
Peter Martens
Hans-Joachim Vahlensieck
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of FR2376103A2 publication Critical patent/FR2376103A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C21/00—Acyclic unsaturated compounds containing halogen atoms
    • C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
    • C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/18—Arsenic, antimony or bismuth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • B01J27/12—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
    • C07C17/08—Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons

Landscapes

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

Abstract

L'invention concerne un procédé pour l'obtention du 1,1-difluoroéthylène par chloration photochimique du 1,1-difluoroéthane en 1,1-difluoro-1-chloroéthane et chauffage ultérieur à 550-750 degrés C. Dans ce procédé, le difluoroéthane utilisé provient de la fluoration catalytique de l'acétylène et contient encore des impuretés qu'il n'est pas nécessaire de séparer. Application : fabrication de 1,1-difluoroéthylène.The invention relates to a process for obtaining 1,1-difluoroethylene by photochemical chlorination of 1,1-difluoroethane to 1,1-difluoro-1-chloroethane and subsequent heating to 550-750 degrees C. In this process, the The difluoroethane used comes from the catalytic fluorination of acetylene and still contains impurities which it is not necessary to separate. Application: manufacture of 1,1-difluoroethylene.

FR7739641A 1976-12-31 1977-12-29 PROCESS FOR OBTAINING 1,1-DIFLUOROETHYLENE FROM ACETYLENE Withdrawn FR2376103A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762659712 DE2659712A1 (en) 1976-12-31 1976-12-31 PROCESS FOR THE PRODUCTION OF 1,1-DIFLUORAETHYLENE FROM ACETYLENE

Publications (1)

Publication Number Publication Date
FR2376103A2 true FR2376103A2 (en) 1978-07-28

Family

ID=5997131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739641A Withdrawn FR2376103A2 (en) 1976-12-31 1977-12-29 PROCESS FOR OBTAINING 1,1-DIFLUOROETHYLENE FROM ACETYLENE

Country Status (8)

Country Link
JP (1) JPS5384905A (en)
BE (1) BE862509A (en)
CA (1) CA1087213A (en)
DE (1) DE2659712A1 (en)
FR (1) FR2376103A2 (en)
GB (1) GB1587830A (en)
IT (1) IT1112126B (en)
NL (1) NL7714598A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685695A1 (en) * 1991-12-30 1993-07-02 Total Raffinage Distribution NOVEL ISOMERIZATION ISOMERIZATION CATALYST OF LINEAR OLEFINS IN BRANCHED OLEFINS AND USES THEREOF, IN PARTICULAR FOR THE ISOMERISATION OF NORMAL-BUTENES IN ISOBUTENE.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7230146B2 (en) * 2003-10-27 2007-06-12 Honeywell International Inc. Process for producing fluoropropenes
CN103562164B (en) * 2011-05-31 2016-04-20 陶氏环球技术有限责任公司 Produce the method for propylene dichloride class

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685695A1 (en) * 1991-12-30 1993-07-02 Total Raffinage Distribution NOVEL ISOMERIZATION ISOMERIZATION CATALYST OF LINEAR OLEFINS IN BRANCHED OLEFINS AND USES THEREOF, IN PARTICULAR FOR THE ISOMERISATION OF NORMAL-BUTENES IN ISOBUTENE.
EP0550331A1 (en) * 1991-12-30 1993-07-07 Total Raffinage Distribution S.A. New catalyst for the isomerisation of linear olefins to branched olefins and use thereof, in particular for the isomerisation of n-butene to isobutene

Also Published As

Publication number Publication date
DE2659712A1 (en) 1978-07-06
BE862509A (en) 1978-04-14
CA1087213A (en) 1980-10-07
NL7714598A (en) 1978-07-04
JPS5384905A (en) 1978-07-26
GB1587830A (en) 1981-04-08
IT1112126B (en) 1986-01-13

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Legal Events

Date Code Title Description
RE Withdrawal of published application