Separation method of organic amine impurity in N-methyl pyrrolidinone

The invention discloses a separation method of an organic amine impurity in N-methyl pyrrolidinone. The method comprises the following steps: firstly pre-processing strong acid or weak acid ion exchange fibers in different matrixes by soaking and washing; performing column-passing transformation on...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SONG GUOQUAN, ZHOU CONGZHANG, WU ZHUOWEI, YAO HUAJIE, SHA JIAO, YAN GUANGXUE, YUAN SIGUO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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