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GB863545A - Manufacture of aliphatic fluorine componds - Google Patents

Manufacture of aliphatic fluorine componds

Info

Publication number
GB863545A
GB863545A GB3357057A GB3357057A GB863545A GB 863545 A GB863545 A GB 863545A GB 3357057 A GB3357057 A GB 3357057A GB 3357057 A GB3357057 A GB 3357057A GB 863545 A GB863545 A GB 863545A
Authority
GB
United Kingdom
Prior art keywords
fluorine
tube
hydrogen fluoride
passed
per hour
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
GB3357057A
Inventor
Otto Scherer
Heinrich Kuhn
Eberhard Forche
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Priority to GB3357057A priority Critical patent/GB863545A/en
Publication of GB863545A publication Critical patent/GB863545A/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
    • C07C17/093—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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aliphatic fluorine compounds are obtained by reacting vaporous hydrogen fluoride with the vapour of a halogenated aliphatic hydrocarbon containing one or more halogen atoms (other than fluorine) and which may additionally contain one or more fluorine atoms, the reaction being carried out in the presence of a catalyst comprising aluminium fluoride and at a temperature in the range of 200 DEG -300 DEG C. In an example, a nickel tube is filled with pieces of porous alumina impregnated with magnesium chloride; and a current of gaseous hydrogen fluoride is passed through the tube for 20 hours at 200 DEG -250 DEG C. A mixture of the vapours of carbon tetrachloride (1 mol per hour) and hydrogen fluoride (1.86 mols per hour) is then passed through the tube at 230 DEG -250 DEG C. The reaction product consisted of difluorodichloromethane and monofluorotrichloromethane, together with a minor proportion of trifluoromonoschloromethane. Specification 805,503 also is referred to.
GB3357057A 1957-10-28 1957-10-28 Manufacture of aliphatic fluorine componds Expired GB863545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3357057A GB863545A (en) 1957-10-28 1957-10-28 Manufacture of aliphatic fluorine componds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3357057A GB863545A (en) 1957-10-28 1957-10-28 Manufacture of aliphatic fluorine componds

Publications (1)

Publication Number Publication Date
GB863545A true GB863545A (en) 1961-03-22

Family

ID=10354655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3357057A Expired GB863545A (en) 1957-10-28 1957-10-28 Manufacture of aliphatic fluorine componds

Country Status (1)

Country Link
GB (1) GB863545A (en)

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