Dry oil-and-fat separation method
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United States of America Patent
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Oct 8, 2013
Grant Date -
Dec 8, 2011
app pub date -
Jan 27, 2010
filing date -
Feb 6, 2009
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Abstract
Disclosed is a dry oil-and-fat separation method of high yield and high separation accuracy, which uses agitation and crystallization in order to prevent problems with thickening of the crystal slurry and decreased solid/liquid separation efficiency in the crystallization/press-filtering process of dry separation of oil-and-fat containing highly crystalline SUS. In dry separation, the crystallization/press-filtering process is divided into multiple steps and repeated, to concentrate the SUS in each crystal fraction and yield SUS-rich oil and fat. Subdivision into multiple steps makes it possible to keep the crystallinity of the crystal slurry in the crystallization/press-filtering process within a range so that the crystal slurry can be transported by pump, and to increase solid/liquid separation efficiency.
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