Abstract: When smelting reduction of chromium and nickel concentrate with C Si Al as compound reductive is conducted in a plasma induction furnace, the alloying target value of 18%Cr and 9%Ni could be achieved in 20 minutes, the recovery rate of Cr and Ni would reach 82 85% and 95 98% respectively. Content of C could be limited within 0.3%. This paper also analysis the properties of electrochemical reaction between slag and molten metal.

Key words: plasma, smelting reduction, ionized driving power, target value of alloying