发明名称 |
VERFAHREN ZUR ABTRENNUNG VON AMINEN. |
摘要 |
For the removal of amines from their aqueous solutions, in particular effluents from cellulose processing,… - the aqueous amine solutions are contacted with a cation exchanger, whose anchoring groups consist of carboxyl groups, in order to charge the cationic exchanger with amines,… - the charged cationic exchanger is treated with an aqueous solution of an acid having a pKa value greater than 3.0 in order to elute the amines, and - the eluate is processed by distillation, a part of the weak acid being separated from the amines and being recovered if desired. …<??>The process according to the invention allows a simple and inexpensive disposal of amine-containing effluents. |
申请公布号 |
AT92372(T) |
申请公布日期 |
1993.08.15 |
申请号 |
AT19900890170T |
申请日期 |
1990.05.31 |
申请人 |
LENZING AKTIENGESELLSCHAFT |
发明人 |
KORGER, DIETMAR;ASTEGGER, STEPHAN, MAG. DR.;EICHINGER, DIETER, DIPL.-ING., DR.;FIRGO, HEINRICH, DIPL.-ING. DR. |
分类号 |
C07D295/02;B01J39/04;C02F1/42;C07C209/86 |
主分类号 |
C07D295/02 |
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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