发明名称 |
PREPARATION PROCESS OF (METH)ACRYLAMIDE |
摘要 |
A catalyst useful in the practice of a process, in which (meth)acrylamide is prepared through the hydration reaction between (meth)acrylonitrile and water in a suspended liquid-phase bed of a Raney copper catalyst, has been obtained by leaching a Raney copper alloy in the presence of the Raney copper catalyst which has been deteriorated. The above useful catalyst has higher performances, compared with a catalyst obtained by conventionally leaching the Raney copper alloy alone, has satisfactory handling properties in settling and filtering, and can significantly reduced the amount of catalyst to be discarded. |
申请公布号 |
CA1298311(C) |
申请公布日期 |
1992.03.31 |
申请号 |
CA19860505206 |
申请日期 |
1986.03.26 |
申请人 |
MITSUI TOATSU CHEMICALS, INCORPORATED |
发明人 |
ASANO, SHIRO;TOKUNAGA, MAREO;KAMBARA, YOSHIHIKO |
分类号 |
C07B61/00;B01J25/00;C07C67/00;C07C231/00;C07C231/06;C07C233/09 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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