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:
Nov. 01, 2005
Filed:
Mar. 28, 2002
Masahide Nakayama, Kyoto, JP;
Keiichi Tsuto, Kyoto, JP;
Takenori Hirano, Kagoshima, JP;
Tsutomu Sakai, Kyoto, JP;
Ayato Kawashima, Kyoto, JP;
Hirohisa Kitagawa, Kyoto, JP;
Masahide Nakayama, Kyoto, JP;
Keiichi Tsuto, Kyoto, JP;
Takenori Hirano, Kagoshima, JP;
Tsutomu Sakai, Kyoto, JP;
Ayato Kawashima, Kyoto, JP;
Hirohisa Kitagawa, Kyoto, JP;
Revo International Inc., Kyoto, JP;
Abstract
The present invention relates to a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising a composite metal oxide having a perovskite structure; and a process for preparing an alkyl ester of a fatty acid wherein a transesterification reaction is carried out between a fat or oil and an alcohol in the presence of a catalyst comprising at least one member selected from the group consisting of oxides, hydroxides and carbonates of alkaline earth metals is used as the catalyst, with the alcohol made into a supercritical state or subcritical state. According to the present invention, the alkyl ester of a fatty acid which can be effectively utilized as a diesel fuel oil or the like can be prepared at high efficiency and on an industrial scale mainly from triglyceride contained in a fat or oil, especially a waste oil.