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1. (WO1991009000) METHOD FOR THE PRODUCTION OF BROMODIFLUOROMETHANE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1991/009000 International Application No.: PCT/US1990/007105
Publication Date: 27.06.1991 International Filing Date: 04.12.1990
Chapter 2 Demand Filed: 03.07.1991
IPC:
C07C 17/23 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
17
Preparation of halogenated hydrocarbons
23
by dehalogenation
Applicants:
GREAT LAKES CHEMICAL CORPORATION [US/US]; Post Office Box 2200 Highway 52 N.W. West Lafayette, IN 47906, US
Inventors:
ROBIN, Mark, L.; US
LYNCH, Victoria, E.; US
Agent:
HENRY, Thomas, Q. ; Woodard, Emhardt, Naughton, Moriarty & McNett Bank One Center/Tower Suite 3700 111 Monument Circle Indianapolis, IN 46204, US
Priority Data:
451,08815.12.1989US
Title (EN) METHOD FOR THE PRODUCTION OF BROMODIFLUOROMETHANE
(FR) PROCEDE DE PRODUCTION DU BROMODIFLUOROMETHANE
Abstract:
(EN) A method for the production of bromodifluoromethane includes reacting hydrogen and dibromodifluoromethane at between about 400 °C and about 600 °C and separating the bromodifluoromethane from the reaction product. Contact times, pressure and molar ratios are not critical, although contact times of about 0.1 to about 20.0 seconds, and molar ratios of hydrogen to dibromodifluoromethane of about 0.1 to about 2.0, are preferred. The reaction occurs without catalyst, and high conversion, yield and selectivity are achieved.
(FR) Dans un procédé de production du bromodifluorométhane on fait réagir l'hydrogène et le dibromodifluorométhane à une température comprise entre environ 400 °C et environ 600 °C et on sépare le bromodifluorométhane du produit de réaction. Les temps de contact, la pression et les rapports molaires ne sont pas critiques, mais on choisira de préférence des temps de contact compris entre environ 0,1 et environ 20,0 secondes, et des rapports molaires hydrogène/dibromodifluorométhane d'environ 0,1 à environ 2,0. La réaction se produit sans catalyseur et on obtient des taux élevés de conservation, de rendement et de sélectivité.
Designated States: JP
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)