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. 02, 2006
Filed:
Mar. 10, 2003
Applicants:
Cashman R. S. Mason, Rossland, CA;
Juris R. Harlamovs, Fruitvale, CA;
David B. Dreisinger, Delta, CA;
Baruch Grinbaum, Tivon, IL;
Inventors:
Cashman R. S. Mason, Rossland, CA;
Juris R. Harlamovs, Fruitvale, CA;
David B. Dreisinger, Delta, CA;
Baruch Grinbaum, Tivon, IL;
Assignee:
Teck Cominco Metals Ltd., Vancouver, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 17/96 (2006.01); C01B 9/00 (2006.01); C01B 9/02 (2006.01); C01B 9/08 (2006.01); C01B 11/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of extracting a halide and sulphate from an aqueous sulphate solution, such as a zinc sulphate solution, comprises subjecting the solution to solvent extraction to extract halide and sulphate from the solution and controlling the amount of sulphate extracted by selective adjustment of the acidity of the aqueous solution.