Patent ID: 6753351
Filing Date: 2004-06-22
Classification: B01J,C10G

Abstract:
A process for activating a supported catalyst or supported catalyst precursor, comprising one or more members selected from the group consisting of Co, Ni, Cu, Ru, Rh, Re, Pd, Pt, Os and Ir, the process comprising:a) reducing with a hydrogen-containing gas at elevated temperatures so that at least a portion of said at least one metal is in the metallic state; b) impregnating under a non-oxidative atmosphere with a solution of at least member selected from the group consisting of ammonium salts, alkyl ammonium salts and weak organic acids, optionally including 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.