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:
Jan. 29, 2019
Filed:
Dec. 01, 2015
Applicants:
Dsm Ip Assets B.v., Heerlen, NL;
Roquette Frères, Lestrem, FR;
Inventors:
Assignee:
DSM IP ASSETS B.V., Heerlen, NL;
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/43 (2006.01); C07C 51/47 (2006.01);
U.S. Cl.
CPC ...
C07C 51/47 (2013.01); C07C 51/43 (2013.01);
Abstract
A process for manufacturing succinic acid as obtained by fermentation is provided including crystallizing the succinic acid from an aqueous solution, separating the crystals from the mother liquor, treating the mother liquor by nanofiltration and recycling the treated mother liquor to the crystallization step. This process exhibits a high yield in terms of succinic acid crystals recovery and allowing to achieve a final product with a low content of saccharides.