| 发明名称 |
PROCESS FOR SEPARATING DICARBOXYLIC ACIDS |
| 摘要 |
Mixtures of dicarboxylic acids are separated by subjecting an aqueous solution of the mixtures to membrane filtration, in which the pH of the solution is adjusted to such a value that the membrane is permeable to less than 5 % of the amount of substance used, relative to at least one component of the dicarboxylic acid mixture. |
| 申请公布号 |
EP0295591(A3) |
申请公布日期 |
1990.07.11 |
| 申请号 |
EP19880109327 |
申请日期 |
1988.06.11 |
| 申请人 |
HENKEL KOMMANDITGESELLSCHAFT AUF AKTIEN |
发明人 |
WALDHOFF, HEINRICH, DR.;SCHINDLER, JOACHIM, DR.;VIEHWEG, HOLGER, DR. |
| 分类号 |
C07C57/13;A42B3/10;B01D61/14;B01D61/16;B01D61/22;C07C51/00;C07C51/42;C07C55/02;C07C67/00;(IPC1-7):C07C51/42 |
主分类号 |
C07C57/13 |
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