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:
Mar. 12, 1991
Filed:
May. 15, 1989
Donald L Bunning, South Charleston, WV (US);
William G Etzkorn, Cross Lanes, WV (US);
William M Haydon, South Charleston, WV (US);
Gordon G Harkreader, Charleston, WV (US);
Jonathan J Kurland, Charleston, WV (US);
Wai C Liu, Charleston, WV (US);
Ernesto Vera-Castaneda, Charleston, WV (US);
Union Carbide Chemicals and Plastics Company Inc., Danbury, CT (US);
Abstract
A process for producing acrylic ester by the catalytic esterification of a crude liquid stream of enriched acrylic acid recovered by the partial condensation of the reaction gas effluent from the catalytic oxidation of propylene and/or acrolein. The partial condensation allows a significant proportion of volatile aldehydes and water to pass through the first recovery stage to a second stage for conventional recovery, along with uncondensed acrylic acid vapors and the remainder of the uncondensed reaction gases.