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:
Aug. 21, 2012
Filed:
Aug. 19, 2011
Olan S. Fruchey, Hurricane, WV (US);
Brian T. Keen, Pinch, WV (US);
Brooke A. Albin, Charleston, WV (US);
Nye A. Clinton, Hurricane, WV (US);
Dilum Dunuwila, Princeton, NJ (US);
Bernard D. Dombek, Charleston, WV (US);
Olan S. Fruchey, Hurricane, WV (US);
Brian T. Keen, Pinch, WV (US);
Brooke A. Albin, Charleston, WV (US);
Nye A. Clinton, Hurricane, WV (US);
Dilum Dunuwila, Princeton, NJ (US);
Bernard D. Dombek, Charleston, WV (US);
BioAmber S.A.S., , FR;
Abstract
Processes for making SA from either a clarified DAS-containing fermentation broth or a clarified MAS-containing fermentation broth that include distilling the broth under super atmospheric pressure at a temperature of >100° C. to about 300° C. to form an overhead that comprises water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion and a solid portion that is substantially pure SA; and separating the solid portion from the liquid portion. A method also reduces the broth distillation temperature and pressure by adding an ammonia separating and/or water azeotroping solvent to the broth.