贵州省丹寨县老冬寨铅锌矿工艺矿物学研究

Study on Process Mineralogy of Laodong Zhai Lead-Zinc Deposit, Danzhai County, Guizhou Province

摘要: 老冬寨铅锌矿位于贵州省丹寨县，铅锌矿体主要赋存于震旦系陡山沱组（Pt₃d）容矿地层中。本文采用化学分析、显微镜分析、X射线衍射以及电子探针分析分析测试手段，对老冬寨铅锌矿进行了工艺矿物学研究。研究结果表明，原矿综合样中闪锌矿含量为15.02%，方铅矿含量为0.81%，另见少量黄铁矿、黄铜矿；脉石矿物主要为石英（56.21%），其次为白云母（15.2%）和高岭石（6.55%），以及少量白云石、方解石等。Pb和Zn的主要载体矿物分别为方铅矿和闪锌矿，理论回收率分别为98.60%和87.90%。

Abstract: Laodong Zhai Lead-zinc deposit is located in Danzhai County, Guizhou Province. Lead-zinc ore bodies mainly occur in the Sinian Doushantuo Formation (Pt₃d). In this paper, the process mineralogy of Laodong Zhai Lead-zinc deposit was studied by means of chemical analysis, microscope analysis, X-ray diffraction and electron probe analysis. The results show that the content of sphalerite and galena is 15.02% and 0.81% respectively , in raw ore comprehensive sample. Gangue minerals are mainly quartz (56.21%), followed by Muscovite (15.2%), kaolinite (6.55%), and a small amount of dolomite, calcite and so on. The main carrier minerals of Pb and Zn are galena and sphalerite, with theoretical recovery rates is 98.60% and 87.90%, respectively.