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. 04, 1978
Filed:
Aug. 19, 1969
Applicant:
Inventor:
Samuel S Mims, Odessa, TX (US);
Assignee:
El Paso Products Company, Odessa, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604654 ; 2605 / ; 260528 ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 260536 ; 2605 / ; 2605 / ; 2605 / ; 260538 ; 260540 ; 260541 ; 560174 ; 560179 ; 560180 ; 560182 ; 560189 ; 560191 ; 560198 ; 560204 ; 560248 ; 560263 ; 560265 ;
Abstract
Organic acids contained in aqueous solution are separated and/or recovered by a process comprising adding an alcohol to the aqueous solution to esterify the acids present, while preferably simultaneously contacting the alcoholic mixture with a water-immiscible solvent and separating layers into an aqueous phase and an organic phase, whereby extraction with the water-immiscible solvent shifts the equilibrium toward the formation of more esters. The esters of the acids may than be recovered as by distillation.