Method for refining crude naphthalene through extractive distillation

The invention provides a method for refining crude naphthalene by extractive distillation, which takes sulfolane as an extracting agent, and adopts an extractive distillation tower and an extracting agent recovery tower to perform continuous distillation and purification on the crude naphthalene. Th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI PINGLI, NI ZEYU, YUE CHANGHAI, CAI XINLEI, HUANG YIPING, ZHU KAI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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