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:
May. 05, 2015
Filed:
Oct. 03, 2011
Satoshi Negishi, Yokosuka, JP;
Kunihiko Tokunaga, Yokohama, JP;
Hitoshi Itou, Yokohama, JP;
Yumi Kawanobe, Yokohama, JP;
Hiroyuki Itagaki, Yokohama, JP;
Satoshi Negishi, Yokosuka, JP;
Kunihiko Tokunaga, Yokohama, JP;
Hitoshi Itou, Yokohama, JP;
Yumi Kawanobe, Yokohama, JP;
Hiroyuki Itagaki, Yokohama, JP;
The Nisshin Oillio Group, Ltd., Tokyo, JP;
Abstract
The present invention provides a method for performing regeneration of a decolorization capacity of waste clay that has been used for purification of fats and oils, and production of a thermally recyclable compound as a biofuel from oily ingredients in the waste clay at the same time in a convenient manner. That is, a method for producing purified fats and oils of the invention includes: a method for producing regenerated clay including the steps of mixing waste clay that has been used for purification of fats and oils, lower alcohol, and an acidic catalyst; and performing extraction of oily ingredients from the waste clay, and an esterification reaction between the fats and oils and/or a free fatty acid in the oily ingredients and the lower alcohol at the same time so as to regenerate a decolorization capacity of the waste clay; regenerated clay that is produced by the method for producing the regenerated clay; and a process of decolorizing the fats and oils using the regenerated clay.