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:
Feb. 10, 2009
Filed:
Jun. 28, 2005
Keiichi Tsuto, Wakayama, JP;
Tetsuya Koshikawa, Kyoto, JP;
Keiichi Tsuto, Wakayama, JP;
Tetsuya Koshikawa, Kyoto, JP;
Revo International Inc., Kyoto, JP;
Abstract
The present invention relates to a process for preparing an alkyl ester of a fatty acid, including the steps of carrying out an esterification reaction between a free fatty acid contained in a fat or oil and an alcohol; carrying out a transesterification reaction between a fat or oil and an alcohol; and refining an alkyl ester of a fatty acid, wherein at least any one of three steps is carried out in a corresponding step selected from the steps of (a) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine strongly acidic particles is supported or a resin foamed article modified to be strongly acidic, and carrying out an esterification reaction between a free fatty acid in the fat or oil and the alcohol; (b) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine alkali particles is supported, and carrying out a transesterification reaction between the fat or oil and the alcohol; and (c) contacting a reaction mixture obtained by the transesterification reaction with a resin foamed article to remove impurities via adsorption, and refining an alkyl ester of a fatty acid.