Search International and National Patent Collections

1. (WO2018011467) PROCESS FOR MANUFACTURING FERROCHROMIUM ALLOY WITH DESIRED CONTENT OF MANGANESE, NICKEL AND MOLYBDENUM

Pub. No.:    WO/2018/011467    International Application No.:    PCT/FI2017/050528
Publication Date: Fri Jan 19 00:59:59 CET 2018 International Filing Date: Tue Jul 11 01:59:59 CEST 2017
IPC: C21C 5/52
C22C 33/04
C22C 35/00
Applicants: OUTOTEC (FINLAND) OY
Inventors: MÄKELÄ, Pasi
PALOVAARA, Petri
PISILÄ, Sauli
SAARENMAA, Jarmo
Title: PROCESS FOR MANUFACTURING FERROCHROMIUM ALLOY WITH DESIRED CONTENT OF MANGANESE, NICKEL AND MOLYBDENUM
Abstract:
Process for manufacturing ferrochromium alloy with desired content of manganese, nickel and molybdenum comprising the steps of providing either agglomerated or fine feed material comprising iron and chromium bearing material, and at least one of the following: manganese bearing raw material, nickel bearing raw material and molybdenum bearing raw material in amounts that are sufficient to provide a manganese content of 0.0 – 70.0 w-%; nickel content of 0.0 – 50.0 w-% and optionally a molybdenum content of 0.0 – 40.0 w-%. Consequently, the smelting feed is smelted together with a reducing agent and flux material to obtain ferrochromium alloy with desired content of manganese, nickel and molybdenum that may be used for example in the manufacturing different stainless steel grades.