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.:

US 8946461 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 03, 2015

Filed:

May. 17, 2011
Applicants:

Udaya Wanasundara, Saskatoon, CA;

Jack Grushcow, Vancouver, CA;

Lui Shuanghui, Saskatoon, CA;

Inventors:

Udaya Wanasundara, Saskatoon, CA;

Jack Grushcow, Vancouver, CA;

Lui Shuanghui, Saskatoon, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11B 7/00 (2006.01); C11B 1/06 (2006.01); C11B 1/10 (2006.01); C11C 1/02 (2006.01); C11C 3/00 (2006.01);
U.S. Cl.
CPC ...
C11B 7/0025 (2013.01); C11B 1/06 (2013.01); C11B 1/10 (2013.01); C11C 1/02 (2013.01); C11C 3/003 (2013.01); Y02E 50/13 (2013.01);
Abstract

A process for recovering, purifying and enriching hydroxy fatty acids from source oils. The process comprises the steps of: (a) methylating the source oil to form therein hydroxy fatty acid methyl esters and non-hydroxy fatty acid methyl esters; (b) separating the hydroxy fatty acid methyl esters from the non-hydroxy fatty acid methyl esters with an organic solvent mixture comprising a pentane/hexane and a short-chain alcohol; and (c) separately recovering the hydroxy fatty acid methyl esters and the non-hydroxy fatty acid methyl esters from the organic solvent mixture. Hydroxy fatty acids that can be recovered, purified and enriched with the process include ricinoleic acid, densipolic acid, lesquerolic acid, and auricolic acid. The non-hydroxy fatty acid methyl esters can be recovered, purified and further processed into biodiesel fuels and/or lubricants.


Find Patent Forward Citations

Wanasundara, Udaya. (2015). Recovery and purification of hydroxy fatty acids from source oils (U.S. Patent No. 8946461). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8946461

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