US 8,772,518 B2 · Dry fractionation method for oil or fat

Abstract

The purpose of the present invention is to provide a method, whereby, in the dry fractionation of an oil or fat, a decrease in solid-liquid separation efficiency, said decrease being caused by the engulfment of a filtrate fraction into a crystal fraction after crystallization and press filtration, can be prevented and thus the crystal slurry can be efficiently separated after the crystallization. A method for the dry fractionation of an oil or fat, said method comprising, before or after crystallization, adding a definite amount of a filtration aid followed by mixing and then press-filtering the thus obtained crystal slurry. Thus, the crystal slurry can be easily separated into a crystal fraction with little engulfment of a liquid fraction and the liquid fraction.

Claims16

Dependent claims

A method of separating a crystal during a dry fractionation of oil-and-fat comprising, adding and mixing a filtration aid to a crystal slurry after crystallization in an amount of 15 to 120% by weight with respect to a solid fat content crystal amount in the crystal slurry and subjecting the mixture to press-filtering, wherein:

the solid fat content crystal amount in the crystal slurry is 10 to 35% by weight,
the filtering aid is at least one selected from diatomaceous material, perlite material, and glass beads, and
the filtration aid has an average particle diameter of 1 to 60 μm.

Dependencies are inferred from the claim text.

Facts

Application

13/995,680Filed 19 Dec 2011

Priority

JP 2010-28527522 Dec 2010

Published

US 2013/0274495 A117 Oct 2013

Granted

8 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

C11B 7/0083
Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils: with addition of auxiliary…
A23D 9/007
Other edible oils or fats, e.g. shortenings or cooking oils: characterised by ingredients other than fatty acid triglycerides
C11B 3/008
Refining fats or fatty oils: by filtration, e.g. including ultra filtration, dialysis
C11B 7/0075
Separation of mixtures of fats or fatty oils into their constituents, e.g. saturated oils from unsaturated oils: by differences of melting or…

Dry fractionation method for oil or fat

Life of this patent

Dry fractionation method for oil or fat

Life of this patent

Abstract

Claims16