发明授权
US5536694A Catalyst precursor for an activated raney metal fixed-bed catalyst, an activated raney metal fixed-bed catalyst and a process for its preparation and use, and a method of hydrogenating organic compounds using said catalyst 失效
用于活化的金属固定床催化剂的催化剂前体,活化的金属固定床催化剂及其制备和使用方法,以及使用所述催化剂氢化有机化合物的方法

Catalyst precursor for an activated raney metal fixed-bed catalyst, an
activated raney metal fixed-bed catalyst and a process for its
preparation and use, and a method of hydrogenating organic compounds
using said catalyst
摘要:
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.
公开/授权文献
信息查询
0/0