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:
Feb. 22, 1983
Filed:
Oct. 16, 1981
Applicant:
Inventors:
Mark S Chagnon, Lowell, MA (US);
Joseph E Lester, Gibsonia, PA (US);
Samuel Natansohn, Sharon, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C01G / ;
U.S. Cl.
CPC ...
423 54 ; 7510 / ; 423D / ; 4236585 ;
Abstract
Molybdenum is removed from an aqueous solution containing tungsten and molybdenum by extracting the molybdenum from the aqueous solution having a pH greater than 8.5 with a liquid organic extractant containing a preferred complexing agent, 3,4-dimercaptotoluene.