| 发明名称 |
Rectificative separation of an acrylic acid-containing liquid |
| 摘要 |
A process for rectificatively separating an acrylic acid-containing liquid, by withdrawing an acrylic acid-rich stream from the rectification column above the feed point and polymerization-inhibiting the upper section of the rectification column by means of diacrylic acid.
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| 申请公布号 |
US7560590(B2) |
申请公布日期 |
2009.07.14 |
| 申请号 |
US20040939498 |
申请日期 |
2004.09.14 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HOEFER FRANK;SCHLIEPHAKE VOLKER;MUELLER-ENGEL KLAUS JOACHIM |
| 分类号 |
C07C7/00;B01D3/10;C07C51/42;C07C51/44 |
主分类号 |
C07C7/00 |
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