某多金属硫化矿锡的工艺矿物学研究

运用化学分析、实体显微镜、透光显微镜、反光显微镜以及X射线衍射仪、X射线能谱仪、扫描电镜等分析方法和测试手段对云南某多金属硫化矿中的有用有害杂质元素含量、矿物组成,锡主要赋存矿物的单体解离度、工艺结晶粒度、嵌布特征以及锡的赋存形式进行了查定、分析。结果表明,在对矿石中的有价元素锡进行回收时,应确定合适的磨矿细度,使呈毗连嵌镶或包裹嵌镶形式嵌布于脉石矿物中的锡石充分单体解离,采用重浮联合选矿工艺才能有效地回收与富集矿石中的锡金属,从而提高锡金属的选矿回收率。

Process Mineralogy Study of Tin in a polymetallic Sulphide Ore

By the means of chemical multi-element analysis, stereomicroscopy, microscopic, reflecting microscope, x-ray diffractometer, x-ray energy spectrum and scanning electron microscopy, the useful and harmful impurity element content in a polymetallic sulphide ore from Yunnan has been examined, and mineral composition, single liberation degree, process crystallization size, occurrence of tin in the ore and dissemination relation of mainly mineral-tin have been determined. The result showed that with recovery of valuable element tin in the ore, we shall determine reasonable grinding fineness which make the cassiterite who inlay in gangue minerals in the form of adjacent mosaic or package inserts fully monomer dissociation, and an effectively integrated recovery and enrichment of tin in this ore may be achieved by floatation combined gravity dressing technology, so as to improve the dressing recovery of tin.