초록 ▼

In the catalytic hydrogenation of a substance in a water-immiscible organic liquid medium, a metallic hydrogenation catalyst is conveniently and effectively dispersed in the reaction mixture by addition as an emulsion of an aqueous solution of a salt of the metal in the liquid medium. The method is

In the catalytic hydrogenation of a substance in a water-immiscible organic liquid medium, a metallic hydrogenation catalyst is conveniently and effectively dispersed in the reaction mixture by addition as an emulsion of an aqueous solution of a salt of the metal in the liquid medium. The method is particularly applicable to the liquefaction of coal.

대표청구항 ▼

In the process for hydrogenating a hydrogenatable organic substrate other than coal by contacting said substrate as a water-immiscible liquid phase with hydrogen in the presence of a metal-containing hydrogenation catalyst, the improvement wherein said metal-containing catalyst is initially added to

In the process for hydrogenating a hydrogenatable organic substrate other than coal by contacting said substrate as a water-immiscible liquid phase with hydrogen in the presence of a metal-containing hydrogenation catalyst, the improvement wherein said metal-containing catalyst is initially added to the water-immiscible liquid phase as an emulsion of a water solution of a compound of said metal in said liquid phase, said compound being convertible to the hydrogenation catalyst under the conditions of hydrogenation.