Patent ID: 6777451
Filing Date: 2004-08-17
Classification: B01J,C10G

Abstract:
A process for the enhancement of a metal catalyst for the catalytic hydrogenation of carbon monoxide, said catalyst comprising one or more members selected from the group consisting of Co, Ni, Cu, Ru, Rh, Pd, Os, Ir, Re and Pt, the process comprising:a) contacting with a hydrogen-containing gas at elevated temperatures so that at least a portion of the catalyst is in the metallic state; b) impregnating under a non-oxidative atmosphere with a solution of a salt of at least one metal selected from the group consisting of Co, Ni, Cu, Ru, Rh, Pd, Os, Ir, Re, Pt, Mo, W, Si, Cr, Ti, Mg, Mn, Zr, Hf, Al, Th, La, Ce and Y, optionally in combination with at least one member selected from a group consisting of an ammonium salt, an alkyl ammonium salt, a weak organic acid and ammonia; c) oxidizing with a gaseous oxidant in the presence of the impregnating solution; and d) reducing with a hydrogen containing gas at elevated temperatures thereby forming an active catalyst.