Direct mfr. of high grade ferro-manganese - by feeding mixt. of manganese-contg. melt, non-carbon reducing agent and flux into reactor and agitating

摘要

Mfr. of high grade ferro Mn includes feeding a Mn-contg. melt (Mn 10-40%, Fe 0.3-0.5%, SiO2 18-35%, CaO 18-29%, MgO 5-8%, Al2O3 8-10%, P 0.005-0.004%), non-carbon type reducing agent (thermit reagent such as Fe-Si, Al, etc) and flux (such as lime, Mn ore, fluorite, etc) into a reactor vessel, and stirring the fed materials by causing horizontal eccentric circular motion. High pure ferro Mn is used as a desulphurising agent or as an alloy element in a steel making process.