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. 20, 2015
Filed:
Feb. 23, 2010
Applicants:
John G. Frye, Richland, WA (US);
Aaron A. Oberg, Richland, WA (US);
Alan H. Zacher, Richland, WA (US);
Inventors:
John G. Frye, Richland, WA (US);
Aaron A. Oberg, Richland, WA (US);
Alan H. Zacher, Richland, WA (US);
Assignee:
Battelle Memorial Institute, Richland, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 31/18 (2006.01); C07C 31/20 (2006.01); C07C 29/60 (2006.01);
U.S. Cl.
CPC ...
C07C 29/60 (2013.01); C07C 29/60 (2013.01); C07C 31/205 (2013.01);
Abstract
Processes and systems for converting glycerol to propylene glycol are disclosed. The glycerol feed is diluted with propylene glycol as the primary solvent, rather than water which is typically used. The diluted glycerol feed is sent to a reactor where the glycerol is converted to propylene glycol (as well as other byproducts) in the presence of a catalyst. The propylene glycol-containing product from the reactor is recycled as a solvent for the glycerol feed.