Waste anhydride recovery system and method in production of maleic anhydride by n-butane method

The invention discloses a waste anhydride recovery system and method in n-butane method maleic anhydride production, the system comprises a maleic anhydride storage tank, the output end of the maleic anhydride storage tank is connected with the input end of a mixer through a first crude anhydride de...

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Bibliographische Detailangaben
Hauptverfasser:	MEI BIN, MA TENG, CHAI ZHENGJIE, REN KAIDONG, LUO HAO, ZHAO RUOXI, FENG ZHIJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses a waste anhydride recovery system and method in n-butane method maleic anhydride production, the system comprises a maleic anhydride storage tank, the output end of the maleic anhydride storage tank is connected with the input end of a mixer through a first crude anhydride delivery pump, the maleic anhydride storage tank is also internally provided with a heat exchange coil pipe, the heat exchange coil pipe is used for melting maleic anhydride into liquid, and the heat exchange coil pipe is connected with the input end of the mixer through a second crude anhydride delivery pump. The waste anhydride recovery system and the waste anhydride recovery method in the maleic anhydride production by the n-butane method have the advantages that qualified products are obtained by reprocessing waste anhydride by the aid of the waste anhydride recovery system and the waste anhydride recovery method in the maleic anhydride production by the aid of the waste anhydride recovery system and the waste an