选别还原预处理的难选矿石或炉渣,往往会不同程度地遇到细磨问题。由于金属化物料中的有用金属嵌布粒度细和具有延展性,要使其与脉石充分解离,一般较为困难,而且细磨效率低。例如,采用还原磁选工艺处理攀枝花钒钛磁铁矿或钛铁矿的精矿,能使物料中的铁、钒、钛得到充分利 Selective recovery of refractory ore pretreatment ore or slag, often to varying degrees, meticulous grinding problems. Due to the fineness and ductility of the useful metal embedded in the metallized material, it is generally more difficult and less efficient to finely grind it in order to fully dissociate it from the gangue. For example, the reduction of magnetic separation process Panzhihua vanadium titanomagnetite or ilmenite concentrate, make the material of iron, vanadium, titanium fully