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:
Jul. 14, 2015
Filed:
Feb. 20, 2004
Setsuo Sato, Jacareí, BR;
Henrique Jorge Sousa Sales, Sao José dos Campos, BR;
Hercules Peloggia, Jacareí, BR;
Peter Kempers, Grevenbroich, DE;
Sabine Both, Neuss, DE;
Ulrich Schoerken, Duesseldorf, DE;
Thomas Wolf, Haan, DE;
Setsuo Sato, Jacareí, BR;
Henrique Jorge Sousa Sales, Sao José dos Campos, BR;
Hercules Peloggia, Jacareí, BR;
Peter Kempers, Grevenbroich, DE;
Sabine Both, Neuss, DE;
Ulrich Schoerken, Duesseldorf, DE;
Thomas Wolf, Haan, DE;
Cognis IP Management GmbH, Duesseldorf, DE;
Abstract
The disclosed invention refers to a process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil (CTO), which is characterized by the following steps: (a) reacting the free fatty acids present in the CTO with lower alcohols; (b) esterifying the sterols in the CTO with boric acid or transesterifying the sterols with a catalyst; (c) separating the fatty acid lower alkyl esters and rosin acids from the remaining sterol borate esters or sterol esters of fatty acids to produce a stream of sterol esters; (d) separating the fatty acid alkyl esters from the rosin acids to produce a first stream of fatty acid alky esters and a second stream of rosin acids; and (e) converting the sterol esters into the free sterols to produce a third stream of free sterols.