| 发明名称 |
PURIFYING METHOD FOR (METH)ACRYLIC ACID STAINED BY ALDEHYDE |
| 摘要 |
In a process for purifying crude (meth)acrylic acid, the crude (meth)acrylic acid is worked up by distillation after addition of an organic carboxylic acid hydrazide and, if desired, an organic sulfonic acid.
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| 申请公布号 |
JPH08208558(A) |
申请公布日期 |
1996.08.13 |
| 申请号 |
JP19950304529 |
申请日期 |
1995.11.22 |
| 申请人 |
BASF AG |
发明人 |
HORUGAA HERUPUSUTO;GERUHARUTO NESUTORAA;JIERII DAARINTON;HANSU MARUTAN |
| 分类号 |
C07C57/075;C07C51/44;C07C57/055;C07C57/07;(IPC1-7):C07C57/075 |
主分类号 |
C07C57/075 |
| 代理机构 |
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代理人 |
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