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:
Jul. 06, 2010
Filed:
Dec. 21, 2005
Applicants:
Stig-erik Hultholm, Pori, FI;
Olli Hyvärinen, Pori, FI;
Inventors:
Stig-Erik Hultholm, Pori, FI;
Olli Hyvärinen, Pori, FI;
Assignee:
Outotec Oyj, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 15/00 (2006.01); C22B 13/00 (2006.01); C22B 19/20 (2006.01); C22B 23/00 (2006.01); C01G 3/02 (2006.01); C01G 3/04 (2006.01); C01G 9/06 (2006.01); C01G 21/00 (2006.01); C01G 51/00 (2006.01); C01G 53/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method, by means of which the valuable metals contained in a sulphidic, multicomponent concentrate are recovered using hydrometallurgical treatment. One constituent of the concentrate is copper sulphide, which is leached using an alkali chloride-copper (II) chloride solution. The sulphides of other valuable metals, such as zinc, nickel, cobalt and lead are leached before copper leaching and each is recovered as a separate product before copper recovery.