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:
Jul. 14, 1998
Filed:
Jan. 16, 1996
Avraham M Baniel, Jerusalem, IL;
Aharon M Eyal, Jerusalem, IL;
Joseph Mizrahi, Haifa, IL;
Betty Hazan, Jerusalem, IL;
Rod R Fisher, Eden Prairie, MN (US);
Jeffrey J Kolstad, Wayzata, MN (US);
Brenda F Stewart, White Bear Lake, MN (US);
Cargill, Incorporated, Minneapolis, MN (US);
Abstract
A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.