GB879057A - Improvements in or relating to the production of perfluoro-alkanes and perfluoro-cycloalkanes - Google Patents

Improvements in or relating to the production of perfluoro-alkanes and perfluoro-cycloalkanes

Info

Publication number
GB879057A
GB879057A GB6720/60A GB672060A GB879057A GB 879057 A GB879057 A GB 879057A GB 6720/60 A GB6720/60 A GB 6720/60A GB 672060 A GB672060 A GB 672060A GB 879057 A GB879057 A GB 879057A
Authority
GB
United Kingdom
Prior art keywords
perfluoro
alkanes
cell
naf
anhydrous
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
GB6720/60A
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.)
Saline Ludwigshalle A-G
Original Assignee
Saline Ludwigshalle A-G
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 Saline Ludwigshalle A-G filed Critical Saline Ludwigshalle A-G
Publication of GB879057A publication Critical patent/GB879057A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/27—Halogenation
    • C25B3/28—Fluorination

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

879,057. Perfluoro-hydrocarbons. SALINE LUDWIGSHALLE A.G. Feb. 25, 1960 (March 7, 1959], No. 6720/60. Class 41. Perfluoro hydrocarbons are formed by electrolysis of a solution in anhydrous HF containing a fluorinated alkane or cycloalkane, preferably the di- or tri-fluoro derivative, and which contains at least one H and one F atoms. A conductivity assistant e.g. NaF is preferably present. As starting materials fluor-alkanes or. cyclo-alkanes containing up to 20 C atoms may be used. In examples, 2.2-difluoro-hexane, - butane, or -octane is dissolved in anhydrous HF containing a little NaF, and electrolysed at 4 to 9 volts using sheet iron cathodes and nickel anodes. The cell is cooled with brine to maintain a temperature of 10‹ to 20‹ C., and a cooled condenser mounted to trap the vapours evolved. These were fractionated, and the HF returned to the cell. Products of respective starting materials are: (a) mainly C6F14; (b) C4F10; (c) C8F18. A diaphragm may be mounted in the cell to prevent hydrogen migrating to the anode. German Specification 1,065,397 is referred to.
GB6720/60A 1959-03-07 1960-02-25 Improvements in or relating to the production of perfluoro-alkanes and perfluoro-cycloalkanes Expired GB879057A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES62059A DE1125896B (en) 1959-03-07 1959-03-07 Process for the production of perfluoroalkanes by electrolysis

Publications (1)

Publication Number Publication Date
GB879057A true GB879057A (en) 1961-10-04

Family

ID=7495316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6720/60A Expired GB879057A (en) 1959-03-07 1960-02-25 Improvements in or relating to the production of perfluoro-alkanes and perfluoro-cycloalkanes

Country Status (2)

Country Link
DE (1) DE1125896B (en)
GB (1) GB879057A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520786A (en) * 1966-12-29 1970-07-14 Union Carbide Corp Preparation of cycloalkanes
US5075508A (en) * 1987-02-13 1991-12-24 Daikin Industries Ltd. Triperfluoroalkylamines and preparation of the same
US5427656A (en) * 1994-03-29 1995-06-27 Minnesota Mining And Manufacturing Company Process for preparing branched perfluorochemicals
US5474657A (en) * 1994-02-10 1995-12-12 Minnesota Mining And Manufacturing Company Preparation of F-alkyl F-isobutyl ethers by electrochemical fluorination
US5573654A (en) * 1994-03-04 1996-11-12 Minnesota Mining And Manufacturing Company Process for making hexafluoropropane and perfluoropropane

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE497503A (en) * 1949-08-17
GB740723A (en) * 1952-08-05 1955-11-16 Bayer Ag Production of saturated carbon compounds containing fluorine and the same or another halogen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3520786A (en) * 1966-12-29 1970-07-14 Union Carbide Corp Preparation of cycloalkanes
US5075508A (en) * 1987-02-13 1991-12-24 Daikin Industries Ltd. Triperfluoroalkylamines and preparation of the same
US5474657A (en) * 1994-02-10 1995-12-12 Minnesota Mining And Manufacturing Company Preparation of F-alkyl F-isobutyl ethers by electrochemical fluorination
US5573654A (en) * 1994-03-04 1996-11-12 Minnesota Mining And Manufacturing Company Process for making hexafluoropropane and perfluoropropane
US5427656A (en) * 1994-03-29 1995-06-27 Minnesota Mining And Manufacturing Company Process for preparing branched perfluorochemicals

Also Published As

Publication number Publication date
DE1125896B (en) 1962-03-22

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