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. 26, 1994
Filed:
Jun. 11, 1993
Applicant:
Inventor:
Tuula S Makinen, Ulvila, FI;
Assignee:
Outokumpu Harjavalta Metals Oy, Harjavalta, FI;
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 101 ; 75425 ;
Abstract
The invention relates to a method for producing high-grade nickel matte and highly oxidized slag in a flash smelting furnace, and for reducing the slag from the flash smelting furnace and for sulfurating the created matte in an electric furnace. The matte created in the flash smelting furnace and in the electric furnace are both directly conducted to hydrometallurgical further treatment.