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:
Jul. 26, 1983
Filed:
Jun. 11, 1981
Applicant:
Inventors:
Arien Kwantes, Amsterdam, NL;
Cornelis W De Goederen, The Hague, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568913 ; 203 32 ; 568895 ; 568914 ;
Abstract
A process for the preparation of ethanol by catalytic hydration of ethylene in which the crude ethanol is separated by distillation in a first column into a bottom stream consisting of aqueous ethanol and a top stream containing diethyl ether and acetaldehyde, the bottom stream is processed further in a second column, the top stream is hydrogenated and then fractionated in a third column together with an impurities containing stream originating from the second column, and optionally the diethyl ether containing top stream of the third column is recycled to the hydration reactor.