company news about Smelting method of ferro molybdenum

The main raw material for smelting ferro molybdenum is common molybdenite (MoS2). Before smelting, molybdenum concentrate is usually oxidized and roasted in multi-core furnace to obtain roasted molybdenum ore with sulfur content less than 0.07%. Ferro molybdenum smelting generally adopts the outside - furnace process. The furnace is a cylinder placed on a sand base, lined with clay bricks, and ferrosilicon contains 75% silicon and a small amount of aluminum particles as a reducing agent. After the charge is added into the furnace tube, the upper fire method is used to melt. An initiator (salt, aluminum or magnesium shavings) is used on the surface of the material, which will have a violent reaction after ignition, then sedated, slag removed, and the cylinder removed. The iron-molybdenum ingot was cooled in the sand nest first, and then sent to the cooling chamber to rinse with water for cooling, and then crushed. The recovery rate of metal materials is 92-99%. In recent years, molybdenum briquette oxide has been widely used to replace ferric molybdenum in iron and steel industry.