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. 20, 1979
Filed:
Dec. 15, 1977
Applicant:
Inventor:
Harry B Copelin, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; B01D / ;
U.S. Cl.
CPC ...
203 96 ; 203 92 ; 26034611 ;
Abstract
A process for separating one or more aliphatic alcohols selected from the group consisting of methanol, ethanol, isopropanol and tertiary butanol from a tetrahydrofuran stream comprising tetrahydrofuran, one or more of said alcohols and optionally water by extractive distillation with water.