甘肃某金矿选矿试验研究

EXPERIMENTAL STUDY ON FLOTATION OF A GOLD ORE IN GANSU

甘肃某金矿以自然金、黄铁矿、黝铜矿、黄铜矿为主。为利用该矿石,进行了浮选试验研究。结果表明,原矿经磨矿一次粗选、二次精选、二次扫选,可获得金品位71.02 g/t、金回收率90.20%的金精矿,实现了该金矿的回收。

The gold ore investigated has simple mineral component, the major minerals contained being mainly native gold, pyrite, tetrahedrite and chalcopyrite. A series of flotation experiments were carried outfor efficient uti- lization of the ore. The optimal process of the flotation were determined to be one stage of grinding, one stage of roughing, two stages of cleaning and two stages of scavenging. A concentrate with the gold grade of 71.02 g/t was finally obtained, the recovery of gold being 90.20%. The recovery of gold was realized.