Selective hydrogenation

Details Selective hydrogenation Selective hydrogenation

C - Chemistry, Metallurgy

11

C

260/484.6

C11C 3/12 (2006.01) B01J 31/28 (2006.01)

Patent

CA 1117972

A 522 (R) Abstract of the Invention 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.

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