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. 14, 2006
Filed:
Feb. 05, 2003
Katsuhiko Nakajoh, Kanagawa-ken, JP;
Takehiko Muramatsu, Kanagawa-ken, JP;
Yukishige Maezawa, Tokyo, JP;
Masao Kon, Kanagawa-ken, JP;
Tomohiro Todoroki, Kanagawa-ken, JP;
Katsushi Nishizawa, Tokyo, JP;
Atsushi Ohara, Tokyo, JP;
Katsuhiko Nakajoh, Kanagawa-ken, JP;
Takehiko Muramatsu, Kanagawa-ken, JP;
Yukishige Maezawa, Tokyo, JP;
Masao Kon, Kanagawa-ken, JP;
Tomohiro Todoroki, Kanagawa-ken, JP;
Katsushi Nishizawa, Tokyo, JP;
Atsushi Ohara, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The present invention provides a method of treating fats and oils containing low concentrations of aromatic halogen compounds and other contaminants by contacting the fats or oils with an adsorbing agent. The adsorbing agent contains a porous body and a non-protonic polar solvent held in the interiors of fine pores in the porous body to adsorb the contaminants. In one embodiment, the porous body also carries noble metal fine particles. In another embodiment, the adsorbing body comprises a solid acid for adsorbing the contaminants and there is a step of contacting the adsorbing body with an organic solvent to extract the adsorbed contaminants into the organic solvent.