Title:
SELECTIVE HYDROGENATION
Document Type and Number:
Japanese Patent JPS5498702
Kind Code:
A
Abstract:
The selectivity of the hydrogenation of compounds containing more than one double carbon-carbon bond in the presence of a metallic catalyst of group VIII of the periodic system is improved and trans isomer formation is reduced by treating the catalyst with a basic compound before addition of the catalyst to the substrate or in situ. The basic compound is a quaternary ammonium hydroxide, an alkali or alkaline earth hydroxide or ammonium hydroxide, a salt with a weak acid of such a hydroxide or an alcoholate of the cations of these hydroxides.
Inventors:
YAN KUIPERU
Application Number:
JP15677178A
Publication Date:
August 03, 1979
Filing Date:
December 19, 1978
Export Citation:
Assignee:
UNILEVER NV
International Classes:
B01J31/28; C07B31/00; C07B35/02; C07C67/00; C11C3/12; (IPC1-7): C07B1/00; C11C3/12
Previous Patent: ANTIBIOTIC AA40104 AND ITS MANUFACTURE
Next Patent: IMPROVED MANUFACTURE OF PERCHLORETHYLENE
Next Patent: IMPROVED MANUFACTURE OF PERCHLORETHYLENE