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1. (WO1998050327) A PROCESS FOR THE PRODUCTION OF A HYDROFLUOROCARBON AND USE OF A CATALYST THEREFOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050327 International Application No.: PCT/GB1998/001210
Publication Date: 12.11.1998 International Filing Date: 24.04.1998
Chapter 2 Demand Filed: 09.11.1998
IPC:
B01J 27/12 (2006.01) ,C07C 17/087 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
06
Halogens; Compounds thereof
08
Halides
12
Fluorides
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
17
Preparation of halogenated hydrocarbons
07
by addition of hydrogen halides
087
to unsaturated halogenated hydrocarbons
Applicants:
IMPERIAL CHEMICAL INDUSTRIES PLC [GB/GB]; Imperial Chemical House Millbank London SW1P 3JF, GB (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
EWING, Paul, Nicholas [GB/GB]; GB (UsOnly)
McCARTHY, John, Charles [GB/GB]; GB (UsOnly)
Inventors:
EWING, Paul, Nicholas; GB
McCARTHY, John, Charles; GB
Agent:
GEARY, Stephen ; ICI Group Intellectual Property The Heath P.O. Box 11 Runcorn Cheshire WA7 4QE, GB
Priority Data:
9709268.808.05.1997GB
Title (EN) A PROCESS FOR THE PRODUCTION OF A HYDROFLUOROCARBON AND USE OF A CATALYST THEREFOR
(FR) PROCEDE DE PRODUCTION D'HYDROFLUOROCARBONE ET UTILISATION D'UN CATALYSEUR A CETTE FIN
Abstract:
(EN) A process for the production of R227ea by the liquid phase catalytic fluorination of hexafluoropropene in which the catalyst comprises a Lewis acid transition metal fluoride, for example tantalum pentafluoride and niobium pentafluoride, is disclosed. The catalyst provides an alternative to antimony pentafluoride as a liquid phase fluorination catalyst thus avoiding the formation of HSbF6 and provides excellent selectivity. A catalyst precursor comprising a Lewis acid transition metal halide is also disclosed.
(FR) L'invention concerne un procédé permettant de produire du frigorigène 227ea (R227ea) par fluorination catalytique en phase liquide d'hexafluoropropène. Selon ce procédé, le catalyseur contient un fluorure de métal de transition d'acide de Lewis, par exemple du pentafluorure de tantale et du pentafluorure de niobium. Le catalyseur, utilisé comme catalyseur de fluorination en phase liquide, représente une solution de rechange au pentafluorure antimoine, ce qui évite la formation de HSbF6 et assure une excellente sélectivité. L'invention concerne également un précurseur de catalyseur contenant un halogénure de métal de transition d'acide de Lewis.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1998070696