Reextraction purification method and device for crude product after sublimation of maltol or ethyl maltol

The invention discloses a re-extraction purification method for a crude product after sublimation of maltol or ethyl maltol. The method comprises the following steps: step 1, heating the crude product after sublimation of maltol or ethyl maltol and water to 80 +/-5 DEG C, and dissolving materials; s...

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Bibliographische Detailangaben

Hauptverfasser:	QIN JILOU, CHEN JINLIN, ZHANG QIJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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