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.

Date of Patent:
Nov. 19, 2013

Filed:

May. 02, 2012
Applicants:

David Dreisinger, Delta, CA;

Ralph Fitch, Denver, CO (US);

Cornelis Verbaan, Denver, CO (US);

Inventors:

David Dreisinger, Delta, CA;

Ralph Fitch, Denver, CO (US);

Cornelis Verbaan, Denver, CO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to methods for recovering precious metals including silver and gold, rare metals including indium and gallium, base metals including copper, lead and zinc or a combination of precious, rare and base metals from complex oxide ores, sulfide ores or oxide and sulphide ores using an acid chloride oxidizing leach.


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