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:
May. 18, 1976
Filed:
Mar. 31, 1975
Applicant:
Inventor:
John S Gallagher, Paris, IL (US);
Assignee:
Commercial Solvents Corporation, Terre Haute, IN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
An improved process for recovering 1-glutamic acid from an aqueous solution containing it by the steps of adjusting the pH of the solution to about 4.5, at ambient temperature, holding at that pH until crystals of 1-glutamic acid begin to appear, heating to from 47.degree. to about 55.degree.C, adjusting the pH to 3.2, cooling, and recovering the crystals resulting therefrom.