(19)
(11) EP 2 718 476 A1

(12)

(43) Date of publication:
16.04.2014 Bulletin 2014/16

(21) Application number: 12799733.6

(22) Date of filing: 08.06.2012
(51) International Patent Classification (IPC): 
C22C 33/04(2006.01)
C22B 1/16(2006.01)
 C22C 38/40(2006.01)
(86) International application number:
PCT/FI2012/050580
(87) International publication number:
WO 2012/172168 (20.12.2012 Gazette 2012/51)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 13.06.2011 FI 20110200

(71) Applicant: Outokumpu, Oyj
02200 Espoo (FI)

(72) Inventors:
  • MÄKELÄ, Tuomo
    FI-90240 Oulu (FI)
  • NIEMELÄ, Pekka
    FI-95410 Tornio (FI)

   


(54) METHOD FOR IMPROVING THE REDUCTION DEGREE IN THE SMELTING OF FERROALLOY