Preparation device of high-purity propylene glycol monomethyl ether

The utility model discloses a preparation device of high-purity propylene glycol monomethyl ether, which comprises a raw material tank, a raw material pump and a heater which are sequentially connected with one another, a compact pervaporation permeable membrane group comprises a first inlet and a f...

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Hauptverfasser:	XIANG-LI FENJUAN, LIU XIN, LI ZHENGMING, DING XIAOBIN, CUI ZHENZHONG, PAN FENG, LI XUYANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model discloses a preparation device of high-purity propylene glycol monomethyl ether, which comprises a raw material tank, a raw material pump and a heater which are sequentially connected with one another, a compact pervaporation permeable membrane group comprises a first inlet and a first retentate side outlet, and the first inlet is communicated with the heater; the dense pervaporation methanol-permeable membrane group comprises a second inlet and a second retentate side outlet, and the second inlet is communicated with the first retentate side outlet of the dense pervaporation water-permeable membrane group; the dense pervaporation membrane group comprises a third inlet and a third retentate side outlet, the third inlet is communicated with the second retentate side outlet of the dense pervaporation methanol-permeable membrane group, and the third retentate side outlet is used for being communicated with a liquid storage tank. The industrial-grade propylene glycol monomethyl ether impurity re