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公开(公告)号:US5015766A
公开(公告)日:1991-05-14
申请号:US284727
申请日:1988-12-15
申请人: Yoshihiko Kambara , Itsuo Oonaka , Koichi Asao , Kyoko Fukushima
发明人: Yoshihiko Kambara , Itsuo Oonaka , Koichi Asao , Kyoko Fukushima
IPC分类号: B01J25/00 , B01J35/02 , B01J37/00 , C07C231/06
CPC分类号: B01J37/0072 , B01J25/00 , C07C231/065 , B01J35/023
摘要: A molten Raney copper alloy containing copper and a metal selected from Al, Si and Zn as major components and, if necessary, specific metals as minor components is solidified at a cooling rate of not less than 1.times.10.sup.2 K/sec by a rotary water atomizing process, water or gas atomizing process, single roll process or similar process. The Raney copper alloy thus obtained is leached to obtain a Raney copper catalyst. The resultant catalyst exhibits activity several times higher than that of conventional Raney copper catalysts in the reaction of acrylonitrile with water to give acrylamide.