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. 24, 1990
Filed:
Nov. 23, 1987
Applicant:
Inventors:
James P Coleman, Maryland Heights, MO (US);
Charles R Graham, St. Charles, MO (US);
Bruce F Monzyk, Maryland Heights, MO (US);
Assignee:
Monsanto Company, St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556-1 ;
Abstract
Gallium is extracted in the presence of other metals from gallium bearing aqueous solutions, by contact with organic solvent containing N-organo hydroxamic acids, particularly at described acid and alkaline pH ranges; and recovered from the organic solvent. New gallium complexes and certain N-organo hydroxamic acids are also provided.