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:
Jan. 21, 2003
Filed:
Jun. 16, 2000
Applicant:
Inventors:
Assignee:
W.C. Heraeus GmbH & Co. KG, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B 1/100 ;
U.S. Cl.
CPC ...
C22B 1/100 ;
Abstract
A method for dissolving base metals and noble metals from ores having base metals and noble metals which comprises adding the ore to a solution of a non-acid oxidizing agent, then adding an aqueous solution of an acid forming halide and then adjusting the H concentration of the combined solutions to a minimum H concentration of 1 mol/l.