Catalyst precursor for an activated raney metal fixed-bed cataly

Details Catalyst precursor for an activated raney metal fixed-bed cataly Catalyst precursor for an activated raney metal fixed-bed cataly

1994-10-13

1996-07-16

Beck, Shrive

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502325, 502331, 502332, 502335, 502336, B01J 2500

Patent

active

055366945

ABSTRACT:
Shaped, activated Raney metal fixed-bed catalysts are obtained by molding a powder of at least one catalyst alloy, comprising at least one Raney process metal as catalytically active component and a leachable alloy component, and a powder of pure Raney process metal as binder with the addition of a shaping aid and pore-producer and subsequent calcination at temperatures below 850.degree. C. During calcination the shaping aid and pore-producer are burned away. Catalyst alloy powder and binder powder thereby sinter together to give a mechanically stable and porous molded item. This molded item thus consists of particles of catalyst alloys which are bonded by the powder of pure Raney process metal. It has no catalytically inactive, ceramic or glassy binder. The surface layer of the molded item is activated by leaching the leachable alloy component contained in the catalyst alloys with caustic soda solution.

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I. Nakabajasi (Katal. Reakts. Zhidk, Faze 280-3 from: Ref. Zh., Khim. 1973, Abstr. No. 6B1100 (Russ) 1972) month unknown.

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