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:
Jun. 15, 1976
Filed:
Feb. 25, 1975
Applicant:
Inventor:
Avinash D Kulkarni, Montclair, NJ (US);
Assignee:
Westinghouse Electric Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; C22B / ;
U.S. Cl.
CPC ...
423 56 ; 423 58 ; 423593 ;
Abstract
Dissolved molybdenum is recovered from spent sulfuric acid-nitric acid solution by adding ammonium hydroxide to spent acid solution to raise pH thereof to from about 1.5 to about 3, and preferably from 2 to 3. Solution is then agitated and simultaneously heated at a temperature less than about 95.degree.C until substantially all dissolved molybdenum is precipitated as ammonium molybdate complex, from which the precipitate is then recovered.