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:
Apr. 20, 1976
Filed:
Nov. 08, 1974
Applicant:
Inventors:
Jerald Edson Dirks, Hastings, NB (US);
Gene Jordan Fisher, Corpus Christi, TX (US);
Assignee:
Celanese Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; C07C / ;
U.S. Cl.
CPC ...
203 95 ; 203-4 ; 203 87 ; 203D / ; 202182 ; 2604 / ;
Abstract
A distillation process for removing light ends impurities from alkyl esters of carboxylic acids wherein a purified ester is removed as residue, and wherein an inert gas and water are added to the overhead vapors from the distillation so as to facilitate separation of the light ends therefrom.