| 摘要 |
PURPOSE:To perform titled reaction with retaining catalytic activity for a long time, by the hydrogenation of a specific unsaturated hydrocarbon mixture containing higher unsaturated hydrocarbon(s) using a specific carrying-type Pd catalyst with its selectivity unchanged even after reclamation. CONSTITUTION:A >=4C unsaturated hydrocarbon mixture containing higher unsaturated hydrocarbon(s) such as diene(s), acetylene is selectively hydrogenated normally at -20-150 deg.C and 1-50atom. is the presence of a carrying-type Pd catalyst prepared by reduction is hydrogen and an alkaline solution.
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