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:
Jun. 07, 2016
Filed:
Nov. 07, 2012
Applicant:
Outotec Oyj, Espoo, FI;
Inventors:
Timo Haakana, Espoo, FI;
Björn Saxén, Pori, FI;
Assignee:
Outotec Oyj, Espoo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 3/06 (2006.01); C22B 3/08 (2006.01); C22B 19/00 (2006.01); C22B 3/00 (2006.01); C22B 3/12 (2006.01);
U.S. Cl.
CPC ...
C22B 19/22 (2013.01); C22B 3/06 (2013.01); C22B 3/08 (2013.01); C22B 3/12 (2013.01); Y02P 10/234 (2015.11);
Abstract
A method for leaching a sulfidic metal concentrate in hydrometallurgical production of metal in a leaching process from which hot water vapor containing off-gas is conducted out and to which an acid solution warmed up to an elevated temperature is conducted. The acid solution is warmed up to an elevated temperature by bringing off-gas of the leaching step into direct contact with the acid solution.