| 发明名称 |
Preparation of anhydrous alkanesulfonic acid. |
| 摘要 |
A process for the removal of water from a lower alkanesulfonic acid-water mixture by causing the mixture to run down the internal walls of two vertical evaporator columns operated in series, is disclosed herein. |
| 申请公布号 |
EP0270953(A1) |
申请公布日期 |
1988.06.15 |
| 申请号 |
EP19870117575 |
申请日期 |
1987.11.27 |
| 申请人 |
PENNWALT CORPORATION |
发明人 |
COMSTOCK, PERRY D.;KEYS, KAREN M. |
| 分类号 |
C07C309/02;B01D1/00;B01D1/22;B01D3/00;C07C43/00;C07C67/00;C07C301/00;C07C303/02;C07C303/42;C07C303/44;C07C309/03;C07C309/04 |
主分类号 |
C07C309/02 |
| 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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