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Title:
PROCESS FOR PREPARING 1,1,1,3,3-PENTAFLUOROPROPANE
Document Type and Number:
WIPO Patent Application WO/1996/025379
Kind Code:
A1
Abstract:
A process for preparing 1,1,1,3,3-pentafluoropropane by reducing 2,3-dichloro-1,1,1,3,3-pentafluoropropane as a raw material with hydrogen in the presence of a catalyst by a vapor-phase process, characterized in that the catalyst is a hydrogenation catalyst comprising palladium and at least one additive metal selected from the group consisting of silver, gold, copper, zinc, rhenium, cobalt, nickel, iridium, ruthenium, rhodium, tantalum, niobium, molybdenum, osmium and tungsten. This process using a hydrogenation catalyst having a long service life permits the preparation of useful 1,1,1,3,3-pentafluoropropane in a high yield, thus being advantageous economically.

Inventors:
AOYAMA HIROKAZU (JP)
YAMAMOTO AKINORI (JP)
SHIBATA NORIAKI (JP)
Application Number:
PCT/JP1996/000272
Publication Date:
August 22, 1996
Filing Date:
February 08, 1996
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
AOYAMA HIROKAZU (JP)
YAMAMOTO AKINORI (JP)
SHIBATA NORIAKI (JP)
International Classes:
B01J23/44; B01J23/56; B01J23/58; B01J23/652; B01J23/66; B01J23/46; B01J23/89; C07B61/00; C07C17/23; C07C17/25; C07C19/08; (IPC1-7): C07C19/08; C07C17/23; B01J23/46; B01J23/89; B01J23/66
Foreign References:
JPH06256235A1994-09-13
JPH01242536A1989-09-27
JPH02218627A1990-08-31
JPH05213793A1993-08-24
Other References:
See also references of EP 0810192A4
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