发明名称 |
Process for the recovery of {68 -caprolactam from a reaction mixture of {68 -caprolactam and sulphuric acid |
摘要 |
A process for removing sulfuric acid from reaction mixtures containing sulfuric acid and epsilon -caprolactam by treating the sulfuric acid with ammonia and sulfur dioxide to produce ammonium sulfate salts and reducing the ammonium sulfate salts to ammonia and sulfur dioxide.
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申请公布号 |
US4081442(A) |
申请公布日期 |
1978.03.28 |
申请号 |
US19770765102 |
申请日期 |
1977.02.02 |
申请人 |
STAMICARBON, B.V. |
发明人 |
WASSEN, WILLEM J.;GOETTSCH, REIJER |
分类号 |
C01C1/24;C07D201/16;(IPC1-7):C07D201/16;C07D201/04 |
主分类号 |
C01C1/24 |
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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