The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
Jun. 05, 2023
Zhejiang Keming Biopharmaceutical Co., Ltd, Shaoxing, CN;
Xinde Xu, Shaoxing, CN;
Shengfan Wang, Shaoxing, CN;
Jian Zhao, Shaoxing, CN;
Hongjuan Chao, Shaoxing, CN;
Zhejiang Keming Biopharmaceutical Co., Ltd, Zhejiang Province, CN;
Abstract
A method of efficiently separating solid fat from polyunsaturated fatty acid grease (PFAG) comprises adding a small amount of inert material to the PFAG, and cooling crystallization, and then adding a certain amount of inert material under stirring, and filtering to obtain clarified PFAG, at the same time collecting a filter cake, heating and dissolving the filter cake, and then filtering, recovering a filtrate to obtain a solid fat. The method can be efficiently separated saturated and low-saturated fatty acids from PFAG. In the process, winterization crystallization time is short, crystallization is complete, the crystal separation is easy. It will not cause some solid fat melted and thus re-enter filtrate due to long separation and blowing dry in conventional process. The yield of final product is high up to 96.3%-98.2%. After winterization, a lipid clarity of PFAG is good, and no crystal precipitation would occur at 0° C. for 5 hrs.