发明名称 |
Method for purifying organic solution containing lactams. |
摘要 |
<p>Disclosed is a method for purifying a lactam-containing organic solution which comprises processing an organic solution containing at least one lactam with an anion exchange resin to remove an anionic surface active substance contained in said organic solution, and then extracting with water to separate an objective component contained in the organic solution to an aqueous solution.</p> |
申请公布号 |
EP0461835(A2) |
申请公布日期 |
1991.12.18 |
申请号 |
EP19910305211 |
申请日期 |
1991.06.10 |
申请人 |
UBE INDUSTRIES, LTD. |
发明人 |
HIROSAWA, KAZUHIKO;KUROKAWA, YASUHIRO;YAMAMOTO, TOMOHIKO;MATSUNISHI, MARSARU;NAWATA, YOSHIHIRO |
分类号 |
C07D201/16 |
主分类号 |
C07D201/16 |
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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