PROCESS FOR PRODUCING CONCENTRATE BY FREEZING AND THAWING AND APPARATUS THEREFOR

Title:

PROCESS FOR PRODUCING CONCENTRATE BY FREEZING AND THAWING AND APPARATUS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2003/072216

Kind Code:

A1

Abstract:

A process for producing a concentrate wherein a target component concentrate is obtained with low cost and in a simple manner from a solution containing a target component and unneeded suspended solid contents while unneeded suspended solid contents are removed. In particular, the process is one for obtaining a concentrate of first component from a solution containing a first component, which comprises a step of rapidly freezing the above solution to thereby obtain a frozen matter, a step of thawing all the frozen matter relatively slowly, and a first recovery step of recovering a thawing initial fraction obtained in the initial stage of thawing to thereby obtain a concentrate of first component.

Inventors:

SHIRAI YOSHIHITO (JP)
WAKISAKA MINATO (JP)

Application Number:

PCT/JP2003/001903

Publication Date:

September 04, 2003

Filing Date:

February 21, 2003

Export Citation:

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Assignee:

SHIRAI YOSHIHITO (JP)
WAKISAKA MINATO (JP)

International Classes:

B01D9/04; (IPC1-7): B01D9/04; C13F1/00

Foreign References:

JPS56139103A	1981-10-30
JPH02191508A	1990-07-27
JPS61263601A	1986-11-21
JP2002172301A	2002-06-18

Other References: