发明名称 |
Process for producing alpha-hydroxyisobutyramide. |
摘要 |
There is disclosed a process for producing alpha -hydroxyisobutyramide by hydration reaction of acetone cyanohydrin in the presence of a catalyst consisting essentially of manganese dioxide which process comprises pretreating the catalyst with a reducing agent. The above process is capable of eliminating the catalyst clogging trouble due to the deposition of the by-produced oxamide and thus proceeding with long-term reaction with the stabilized catalyst performance. |
申请公布号 |
EP0597298(A1) |
申请公布日期 |
1994.05.18 |
申请号 |
EP19930117111 |
申请日期 |
1993.10.22 |
申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
UCHIYAMA, TAKAKO C/O MITSUBISHI GAS CHEMICAL;HIGUCHI, HIROFUMI C/O MITSUBISHI GAS CHEMICAL |
分类号 |
B01J23/34;B01J37/16;C07B61/00;C07C231/06;C07C235/06 |
主分类号 |
B01J23/34 |
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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