发明授权
- 专利标题: Process for producing complex oxide catalyst
- 专利标题(中): 复合氧化物催化剂的制备方法
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申请号: US12893131申请日: 2010-09-29
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公开(公告)号: US08361923B2公开(公告)日: 2013-01-29
- 发明人: Hirotsugu Kano , Eiichi Shiraishi
- 申请人: Hirotsugu Kano , Eiichi Shiraishi
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Panitch Schwarze Belisario & Nadel LLP
- 优先权: JP2009-226690 20090930
- 主分类号: B01J23/00
- IPC分类号: B01J23/00 ; B01J21/00 ; B01J20/00 ; B01J29/00 ; B01J37/00 ; B01J35/00
摘要:
A process is provided for producing a complex oxide catalyst which exhibits superior catalytic activity in a vapor phase catalytic oxidation reaction, particularly in production of unsaturated aldehyde and unsaturated carboxylic acid. The process is characterized by the steps of preparing an aqueous slurry by mixing a complex oxide containing molybdenum and cobalt with an acid and water; drying the aqueous slurry; and calcining the resulting dried solid. Preferably, the complex oxide is obtained as follows: a molybdenum- and cobalt-containing complex oxide catalyst which has been used in a vapor phase catalytic oxidation reaction is mixed with an aqueous extracting solution obtained by dissolving at least one of ammonia and an organic base in water, to thereby extract molybdenum and cobalt into the aqueous phase; and the aqueous phase is dried and is then calcined under an atmosphere of an oxidizing gas.
公开/授权文献
- US20110077148A1 PROCESS FOR PRODUCING COMPLEX OXIDE CATALYST 公开/授权日:2011-03-31