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Patent Searching and Data


Title:
DISPROPORTIONATION CATALYST
Document Type and Number:
WIPO Patent Application WO2001016068
Kind Code:
A3
Abstract:
Disclosed are halide-free catalyst compositions for the disproportionation/isomerization of aromatic carboxylic acid salts. In one embodiment the catalyst comprises a mixed catalyst of compounds of copper, zinc, and zirconium; and, in a second embodiment, the catalyst comprises a copper compound treated with a base, optionally used with a promoter. Both halide-free catalysts provide advantages with respect to metallurgic problems, as well as good stability, activity and selectivity, and the later is faster kinetically at lower temperatures.

Inventors:
DUBOIS DONN A
MURRAY BRENDAN D
Application Number:
PCT/US2000/021683
Publication Date:
July 26, 2001
Filing Date:
August 08, 2000
Export Citation:
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Assignee:
SHELL OIL CO (US)
International Classes:
B01J23/00; B01J23/80; B01J27/232; B01J37/08; C07B61/00; C07C1/20; C07C15/24; C07C51/02; C07C51/15; C07C51/265; C07C51/41; C07C51/42; C07C51/43; C07C51/47; C07C51/487; C07C63/38; C08G63/189; B01J23/83; (IPC1-7): C07C51/41; C07C63/15; C07C63/38; C07C63/337; B01J27/232
Foreign References:
FR2496648A11982-06-25
US3766258A1973-10-16
EP0431487A11991-06-12
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