太和钒钛磁铁矿中硫化物的工艺矿物学研究

Process Mineralogy of the Sulfide in the Taihe Vanadium Titanomagnetite

西昌太和铁矿是攀西地区著名的大型钒钛磁铁矿矿床,矿床中的铁钛氧化物与硫化物广泛共生。本文对太和钒钛磁铁矿中的硫化物进行了工艺矿物学研究,查明硫化物主要包括磁黄铁矿和黄铁矿,二者的粒度分布适中,主要粒度分布在区间在20μm以上,单体含量达到60%以上,主要连生矿物有磁铁矿、钛铁矿、绿泥石、辉石等。研究表明,如果在分选流程中增加浮硫作业,既可以增加硫化物的回收,也可以进一步提高铁精矿的品质。

The Taihe iron deposit is a large vanadium titanomagnetite deposit in the Xichang,Panxi area.This deposit mainly contains iron titanium oxide with minor sulfide.Through study on process mineralogy of this deposit,we determine that the main sulfide mineral is pyrrhotite and pyrite with moderate grain size distribution(>20 micron).The intergrown minerals mainly include magnetie,ilmenite,chlorite and pyroxene.Therefore,we suggest that the sulfide floatation technology should be used for magnetic concentrate.The technology not only increases the recovery of sulfide,but also enhances the quality of iron concentrate.