安徽某含铜铁硫矿石工艺矿物学

Technological mineralogy of a copper-iron- sulfur ore from Anhui

为查明安徽某矿石的综合利用价值,采用化学方法、显微镜鉴定、扫描电镜能谱分析等手段,研究其化学组成、矿物组成及嵌布特征.结果表明:试样属铜铁硫矿石,铜、铁、硫品位分别为0.27%、27.87%、16.76%.铜主要(94.4%)以黄铜矿的形式存在,铁约84.63%以非磁性铁(黄铁矿、赤铁矿)形式存在,次为磁铁矿,并含有少量磁黄铁矿.铜、硫矿物主要为细粒嵌布,且单体解离良好,铁以粗中粒级嵌布为主,单体解离情况较差.铜、铁、硫矿物形态各异,嵌布特征较复杂,分离较难.

In order to find out the comprehensive utilization value of a certain mineral in Anhui, its chemical composition, mineral composition and dissemination character were researched by means of chemical analysis, microscope, and scanning electron microscope energy spectrum analysis. The results indicate that the sample is copper-iron-sulfur mineral with the grades of copper, iron, sulfur being 0.27 %, 27.87 %,16.76 % respectively. The copper element which accounts for 94.4 % is mainly in the form of chalcopyrite, iron element which accounts for 84.63 % is in the form of non magnetic minerals （pyrite, hematite） and the rest iron element is magnetite, with little magnetic pyrite. The copper and sulfur mineral are fine particles, and their monomer dissociation degree is high, while the iron minerals are in coarse and medium grain with low monomer dissociation degree. Copper mineral, iron mineral, sulfur mineral are in different forms with complex dissemination character, so it is difficult to separate them.