Experimental study of reduction reaction from used battery MnO2 in steel refinement
废电池中氧化锰还原冶炼锰钢的实验研究

The new technology of recovering manganese from used battery in high temperature has been developed in order to promote the centralized treatment of used battery in our country. After used battery is separated, it is crushed and screened. The carbon and black manganese from used battery are made into pellet and then sintered. The manganese steel is refined in induction furnace using the pellet. The experiments show that reduction rate of black manganese is 34% if surface active agent is not added to the pellet, but the reduction rate of black manganese is 80% by adding sulfide surface active agent into pellet. The final manganese content is about 3.97% in the liquid steel. Under the conditions of the experiment, the best reduction time is 20 minutes. The technology can be used to treat used battery in the production process of casting steel.