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. 09, 2010
Filed:
Jun. 29, 2006
Heiji Enomoto, Sendai, Miyagi, JP;
Fangming Jin, Shanghai, CN;
Takehiko Moriya, Sendai, JP;
Kenji Kakeda, Izumiotsu, JP;
Yoshitoshi Sekiguchi, Maizuru, JP;
Hisanori Kishida, Osaka, JP;
Heiji Enomoto, Sendai, Miyagi, JP;
Fangming Jin, Shanghai, CN;
Takehiko Moriya, Sendai, JP;
Kenji Kakeda, Izumiotsu, JP;
Yoshitoshi Sekiguchi, Maizuru, JP;
Hisanori Kishida, Osaka, JP;
Abstract
A process for producing lactic acid according to the invention is characterized in that glycerin is subjected to a hydrothermal reaction under an alkaline condition at a temperature in the range of 150 to 400° C. and under pressure equal to or more than the saturated vapor pressure at the temperature. The glycerin produced from plant fats, animal fats or the like or pure product synthesized chemically or a discharge containing glycerin generated at the production of diesel fuel oil from fats, in which the fats are subjected to a transesterification with alcohol in the presence of an alkali catalyst in order to obtain fatty acid ester is preferably used as a starting material.