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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.:

US 7749302 B1

PDFFull Text
Expired
Date of Patent:
Jul. 06, 2010

Filed:

Dec. 21, 2005

Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals

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:

Buchanan Ingersoll & Rooney PC

Primary Examiner:

Jerry Lorengo

Assistant Examiner:

Jared Wood

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.

Find Patent Forward Citations

Hultholm, Stig-Erik. (2010). Method for the hydrometallurgical treatment of sulfide concentrate containing several valuable metals (U.S. Patent No. 7749302). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7749302

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