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:
Dec. 10, 2019
Filed:
Nov. 10, 2015
Applicant:
Outotec (Finland) Oy, Espoo, FI;
Inventors:
Assignee:
OUTOTEC (FINLAND) OY, Espoo, FI;
Primary Examiner:
Int. Cl.
CPC ...
C22B 23/02 (2006.01); C22B 15/00 (2006.01); C22B 23/00 (2006.01);
U.S. Cl.
CPC ...
C22B 23/025 (2013.01); C22B 15/0015 (2013.01); C22B 15/0028 (2013.01); C22B 23/005 (2013.01);
Abstract
A process of treating complex sulfide concentrate includes the steps of roasting wet or slurried complex sulfide concentrate in a furnace at a temperature of at least 720° C. to obtain a calcine; smelting the calcine under inert or oxygen free atmosphere in a smelting furnace to obtain a matte, and optionally granulating the matte to obtain a granulated matte.