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:
Mar. 18, 2014
Filed:
Dec. 18, 2012
Hyundai Motor Company, Seoul, KR;
Si Hwan Kim, Gyeonggi-do, KR;
Chae Hwan Hong, Gyeonggi-do, KR;
Jiyoun Seo, Gyeonggi-do, KR;
Do Suck Han, Gyeonggi-do, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
Disclosed is an apparatus and a method for producing lactic acid, wherein only lactic acid is selectively absorbed and separated from fermentation liquor using a lactic acid absorption resin and wherein a neutralizing agent is not used. The present invention does not include a neutralizing process and a process of converting lactate to lactic acid. The method comprises: adding and mixing a culture medium, microorganism and sugar in a fermenter; passing a fermentation liquor through a microorganism filtration unit to remove microorganisms; and selectively absorbing and separating lactic acid from filtered liquid using a lactic acid absorption resin. The apparatus includes a fermenter for lactic acid fermentation; a filtration unit for removing a microorganisms from the fermentation liquor; and a lactic acid absorption resin for selectively absorbing lactic acid from the filtered liquid.