METHOD FOR RECOVERING CRYSTAL FROM SLURRY

PROBLEM TO BE SOLVED: To provide a method for recovering crystals from a slurry continuously for a long period without causing the clogging of a filter material. SOLUTION: Crystals in a slurry are continuously recovered by supplying the slurry to a filter having a rotary filter material. Soluble com...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO DAISUKE, NAKAO FUJIMASA
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for recovering crystals from a slurry continuously for a long period without causing the clogging of a filter material. SOLUTION: Crystals in a slurry are continuously recovered by supplying the slurry to a filter having a rotary filter material. Soluble components in a solvent are precipitated to prevent the deposition of the components on the filter material during filtration by a method to lower the temperature of the slurry solution supplied to the filter by the bubbling of nitrogen gas, a method to lower the temperature by passing the solution through a heat-exchanger or a combination of both methods, and the nitrogen gas used in the bubbling is used as a blowing gas for peeling the cake. COPYRIGHT: (C)2007,JPO&INPIT