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. 08, 2017
Filed:
Mar. 13, 2014
Applicant:
Dsm Nutritional Products Ag, Wurmisweg, Kaiseraugst, CH;
Inventors:
Weijie Wang, Dartmouth, CA;
Paul Frederick Mugford, Halifax, CA;
Theophilus Cornelus Van Den Heuvel, Dartmouth, CA;
Assignee:
DSM Nutritional Products AG, Kaiseraugst, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 273/16 (2006.01); C11B 3/00 (2006.01); C11B 7/00 (2006.01); C07C 273/02 (2006.01);
U.S. Cl.
CPC ...
C07C 273/16 (2013.01); C07C 273/02 (2013.01); C11B 3/006 (2013.01); C11B 7/0025 (2013.01); C11B 7/0083 (2013.01);
Abstract
Disclosed are methods of recovering urea from a urea/oil complex by drying the complex, combining the complex with water to form a urea solution, and removing water from the urea solution. Methods for recycling the urea in urea complexation processes are also disclosed. Also disclosed are methods of recovering polyunsaturated fatty acids or derivatives thereof from the urea/oil complexes.