MUTUAL SEPARATION METHOD OF COMPOUNDS DUE TO SIMULTANEOUS DIVIDING METHOD

PROBLEM TO BE SOLVED: To provide a method for acquiring a desired compound, for example, each optical isomer of high purity with high recovery from a solution of a plurality of compounds which form a simple eutectic composition, for example, a racemic mixture of optical isomers using a small amount...

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Bibliographische Detailangaben
Hauptverfasser:	KUBOTA TOKUAKI, TOKI NORIHITO, ASATANI HARUO, TAKANO KIYOMITSU, KATSUO SHIGEJI
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for acquiring a desired compound, for example, each optical isomer of high purity with high recovery from a solution of a plurality of compounds which form a simple eutectic composition, for example, a racemic mixture of optical isomers using a small amount of a plurality of seed crystals different in particle size distribution or the like. SOLUTION: In this mutual separation method for separating the same compounds as the seed crystals from the solution of at least two kinds of compounds in a liquid medium using at least two kinds of seed crystals by crystallization operation, difference which enables the mutual separation of crystals after crystallization operation by physical classifying operation is present and the concentration of fine crystals same in kind to the seed crystals in a crystallized slurry solution at the time of crystallization operation and smaller than the seed crystals is controlled. COPYRIGHT: (C)2006,JPO&NCIPI