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. 02, 2018
Filed:
Jul. 10, 2014
Applicant:
Georgia-pacific Llc, Atlanta, GA (US);
Inventors:
Pierre Louis Woestenborghs, Echt, NL;
Rinke Marcel, Echt, NL;
Assignee:
Georgia-Pacific LLC, Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/48 (2006.01); C07C 51/44 (2006.01); D21C 11/00 (2006.01); C09K 3/00 (2006.01);
U.S. Cl.
CPC ...
C07C 51/48 (2013.01); C07C 51/44 (2013.01); C09K 3/00 (2013.01); D21C 11/0007 (2013.01);
Abstract
The invention relates to a process for the isolation of levulinic acid from an organic solution, comprising washing said organic solution with an alkaline aqueous stream to yield a washed organic solution; subjecting the washed organic solution to a distillation to yield a distillate and a distillation residue; and recovering levulinic acid from the distillate or the residue. This process may result in high yields of levulinic acid.