| 发明名称 |
Purification of formic acid by extractive distillation |
| 摘要 |
Formic acid is purified by extractive distillation of its aqueous solutions using a basic extractant, followed by distillation of the bottom mixture first obtained, the extractant used being N-formylmorpholine.
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| 申请公布号 |
US4076594(A) |
申请公布日期 |
1978.02.28 |
| 申请号 |
US19760729858 |
申请日期 |
1976.10.04 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
BUELOW, HORST;HOHENSCHUTZ, HEINZ;SCHMIDT, JOHANNES E.;SACHSZE, WERNER |
| 分类号 |
C07C53/02;C07C51/00;C07C51/44;C07C51/48;C07C67/00;(IPC1-7):B01D3/40 |
主分类号 |
C07C53/02 |
| 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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