陕西某地辉钼矿选矿试验

Beneficiation Test of a Certain Molybdenum in Shaanxi Province

为合理开发利用陕西某地辉钼矿及提供最佳的选矿工艺流程,根据矿石性质,对陕西某地辉钼矿进行了选矿试验研究。试验结果表明:在磨矿细度为-0.074 mm 50%,采用1粗2扫3精的浮选工艺流程;粗选选用煤油为捕收剂,2#油为起泡剂,精选采用巯基乙酸钠抑制黄铜矿,最终取得了钼品位为56.12%、钼回收率为95.42%、钼精矿铜含量降至0.005 5%的钼精矿,钼精矿达到了国家颁发的YS/T 235—2007精矿质量标准牌号KMo-53;为该矿的开发建厂设计提供了初步依据。

In order to rationally develop and utilize a certain molybdenite mine in Shaanxi Province and provide the best beneficiation process,beneficiation experiments were conducted on the molybdenite mine according to the ore properties. The test results show that： under grinding fineness of-0. 074 mm50%,adopting the flotation process of one-roughing,two-scavenging,and three-cleaning,kerosene as collector,2#oil as the foaming agent in rough concentration,thiol Sodium acetate to inhibit chalcopyrite in cleaning concentration,a molybdenum concentrate with molybdenum grade of 56. 12%,molybdenum recovery rate of 95. 42%,and a molybdenum concentrate with copper content of 0. 0055% or below,were finally achieved. The molybdenum concentrate reached the nationally-awarded YS/T 235—2007 KMo-53,a grade standard for concentrate quality; It provides preliminary basis for the development of the mine.