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:
Oct. 04, 2011
Filed:
Oct. 13, 2009
Applicants:
James A. King, West Vancouver, CA;
Jinxing Ji, Burnaby, CA;
Christopher Andrew Fleming, Omemee, CA;
Cesare Giosue Ferron, Peterborough, CA;
Inventors:
James A. King, West Vancouver, CA;
Jinxing Ji, Burnaby, CA;
Christopher Andrew Fleming, Omemee, CA;
Cesare Giosue Ferron, Peterborough, CA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 3/00 (2006.01); C22B 11/08 (2006.01); C22B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by a number of mechanisms, including control of the oxidation reaction conditions in the first autoclave compartment, hot curing of the autoclave discharge slurry, and/or contacting of the autoclave feed slurry with the hot cured discharge liquid.