云南某含银锌精矿银赋存状态研究

Study on the Occurrence State of Silver in a Silver-bearing Zinc Concentrate in Yunnan

对云南某含银锌精矿进行了银赋存状态研究,通过化学分析、电子探针、光学显微镜等研究手段,查清了矿石的结构构造、物质成分、主要矿物的嵌布特征、镶嵌关系及银的赋存状态。矿石主要金属矿物为白铅矿、闪锌矿、黄铁矿、方铅矿,银主要赋存于-10μm的白铅矿中,在10μm以上的白铅矿及其它矿物中均未发现银的存在。

The occurrence state of silver in a silver - bearing zinc concentrate in Yunnan is researched, the texture and material composition of the concentrate, the dissemination characteristics and inlay relationship of main minerals in the concentrate, and the occur- rence state of silver in the concentrate are verified by chemical analysis, electronic probe, optical microscope and other research techniques. The main metal minerals in the concentrate are cerusite, sphalerite, pyrite, and galena, silver is mainly occurred in cerusite of - 10 μm and it is not found in cerusite and the other minerals of ＋ 10μm .