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:
Jun. 02, 2015
Filed:
May. 12, 2012
Applicants:
Horst Josten, Düsseldorf, DE;
Pepa Dimitrova, Kaiserslautern, DE;
Truc Tran Anh, Düsseldorf, DE;
Inventors:
Assignee:
Cognis IP Management GmbH, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11C 1/00 (2006.01); C07C 29/132 (2006.01); C07C 29/86 (2006.01); C11C 1/02 (2006.01);
U.S. Cl.
CPC ...
C11C 1/00 (2013.01); C07C 29/132 (2013.01); C07C 29/86 (2013.01); C11C 1/025 (2013.01);
Abstract
Described is a process for simultaneously purifying fatty alcohols and obtaining a fraction of free fatty acids, wherein: (a) crude fatty alcohols comprising up to 70% b.w. alkyl esters and/or wax esters are treated with alkaline bases in an amount sufficient to essentially convert said esters into alkaline soaps, (b) said alkaline soaps are separated from said fatty alcohols by extraction to produce a purified fraction of fatty alcohols and an aqueous soap phase, and (c) said soap phase is treated with strong mineral acids in order to release the fatty acids from the soaps.