某锌矿中锌及稀散元素镓、锗的赋存状态

Distribution State of Zinc and the Rare Elements Gallium and Germanium in a Zinc Ore

摘要: 这是一篇工艺矿物学领域的论文。采用化学分析、显微镜分析和MLA矿物自动定量检测技术，对国内某锌矿石中锌及伴生稀散元素镓、锗的赋存状态和主要载体矿物的嵌布特征进行详细研究。结果表明，该锌矿石中含Zn 4.87%、Ga 4.10 g/t、Ge 59.00 g/t，未发现稀散元素镓、锗的独立矿物，镓、锗主要赋存在闪锌矿中。从该矿石中分选闪锌矿（包含异极矿），锌、镓、锗的理论回收率分别为95%、56%、93%左右。少部分微细粒状胶态闪锌矿不易获得解离，易损失于尾矿中，对锌的回收率有一定影响。

Abstract: This is an article in the field of process mineralogy. The occurrence of zinc, associated dispersed elements Ga and Ge and the distribution characteristics of the main carrier minerals of a zinc ore in China are studied in detail by means of chemical analysis, microscope analysis and MLA mineral automatic quantitative technology.The results indicate that the zinc ore contains Zn 4.87%, Ga 4.10 g/t and Ge 59.00 g/t, no independent minerals of dispersed elements Ga and Geare found, Ga and Ge mainly occur in sphalerite. The theoretical recovery of Zn, Ga and Ge from sphalerite (including hemimorphite) are about 95%, 56% and 93% respectively. A small part of colloidal and fine grained sphalerite is difficult to obtain dissociation and easy to be lost in tailings, which has a certain effect on the recovery of zinc.