Process for preparing superfine particles of ginkgolic flavone by supercritical crystallizing method

A process for preparing superfine ginkgolic flavone particles by supercritical crystallizing method includes pumping CO2 and the solution of ginkgolic flavone in absolute alcohol into high-pressure reactor, mixing and expanding at 50-80 deg.C, deposition and separating. Its advantages are simple pro...

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1. Verfasser:	SHUSEN SHAN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	A process for preparing superfine ginkgolic flavone particles by supercritical crystallizing method includes pumping CO2 and the solution of ginkgolic flavone in absolute alcohol into high-pressure reactor, mixing and expanding at 50-80 deg.C, deposition and separating. Its advantages are simple process, high output rate no pollution and chemical residue and high quality of product.