江苏吴县谈家桥矿区为一多金属硫化物的矽卡岩型磁铁矿矿床。矿石中含磁黄铁矿较多,并伴生有少量黄铜矿、闪锌矿、黄铁矿等。为使矿床获得利用,如何降低磁选铁精矿中硫的含量是我们要研究的中心内容。遵照毛主席“综合利用很重要,要注意”的教导,我们采用预先混合浮选脱除硫化物后磁选的流程,使铁精 Tanjiaqiao Wuxian County, Jiangsu Province is a polymetallic sulphide skarn type magnetite deposit. There are more pyrrhotite ore, accompanied by a small amount of chalcopyrite, sphalerite, pyrite and so on. In order to make use of the deposit, how to reduce the content of sulfur in the magnetic separation of iron ore concentrate is the center of our research. According to Chairman Mao’s “comprehensive utilization is very important, we should pay attention to” the teaching, we use pre-mixed flotation after the removal of sulfide magnetic separation process, iron fine