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:
Sep. 17, 2002
Filed:
Jul. 10, 2000
Applicant:
Inventor:
Christopher A. Fleming, Peterborough, CA;
Assignee:
Lakefield Research Limited, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 1/00 ; C22B 3/00 ; C22B 1/100 ;
U.S. Cl.
CPC ...
C22B 1/00 ; C22B 3/00 ; C22B 1/100 ;
Abstract
Briefly stated, there is provided a method for reducing cyanide consumption in precious metals mining extraction processes involving a sulfur bearing ore body, comprising the steps of providing a precious metal bearing material having intermediate sulfur oxidation products, and exposing the material to sulfur dioxide gas, bisulfite ions or sulfite ions, in a manner to cause at least a portion of the intermediate sulfur oxidation products to be rendered unreactive with cyanide.
Fleming, Christopher. (2002). Methods for reducing cyanide consumption in precious metal recovery by reducing the content of intermediate sulfur oxidation products therein (U.S. Patent No. 6451275). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6451275
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile