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:
Nov. 16, 2004
Filed:
May. 09, 2001
Applicant:
Inventors:
John E. Litz, Golden, CO (US);
Paul B. Queneau, Golden, CO (US);
Rong-Chien Wu, Chelmsford, MA (US);
Assignee:
H. C. Starck, Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/00 ;
U.S. Cl.
CPC ...
C22B 3/00 ;
Abstract
The process chemistry during the oxidation of molybdenite concentrates in an oxygen pressure leach can be controlled by regulating the amount of ferric iron and excess sulfuric acid recycled as autoclave discharge slurry or filtrate to the autoclave feed. A computer model capable of predicting the concentration of soluble molybdenum in the autoclave discharge and based on the concentrate and recycle analyses was developed.