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:
Nov. 13, 2001
Filed:
Apr. 26, 1999
Applicant:
Inventors:
Alberto Nisoli, Niskayuna, NY (US);
Stephan Mathijs Bouwens, Bergen op Zoom, NL;
Michael Francis Doherty, Montague, MA (US);
Michael Francis Malone, Amherst, MA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/40 ; C07C 2/732 ; C07C 6/996 ;
U.S. Cl.
CPC ...
B01D 3/40 ; C07C 2/732 ; C07C 6/996 ;
Abstract
A method of separating methanol and dimethyl carbonate in a distillation column through extractive distillation. The extractive distillation is conducted in the presence of an extractive distillation agent which modifies the azeotropic behavior of the dimethyl carbonate/methanol mixture. A vapor side stream is removed from the distillation column.