（1. Research and Development Department， Gangyan Shenghua Engineering and Research Co.， Ltd.，Beijing 100081， China 2. State Key Laboratory of Advanced Steel Processes and Products，Central Iron and Steel Research Institute， Beijing 100081， China）
Abstract：Manganese-rich slag is the raw material of silicon-manganese alloy produced by electric arc furnace. Blast furnace is the main process to produce manganese-rich slag. But this process has the problems of long process flow，large consumption of coke，the effects of the elements of lead，zinc and other easy volatile metal on smelting. The new process of manganese-rich slag production from high-iron manganese ore by smelting reduction is introduced. This process has the advantages of short process flow，no consumption of coke，comprehensive recovery of the elements of lead，zinc and other easy volatile metal. The experimental results show that the process of smelting reduction of manganese-rich slag is feasible. With the reducing temperature of 1 400 ℃ and the reducing time of 20 min，the slag and iron can be completely separated，and the recovery rates of iron and manganese are high.
2016, Vol. 26 
