四川里伍铜矿选铜尾渣工艺矿物学研究  

Study on Process Mineralogy of Copper Tailings in Liwu Copper Mine of Sichuan

作　　者：傅开彬[1,2] 邓永斌 付华洪 刘琪 FU Kaibin;DENG Yongbin;FU Huahong;LIU Qi(Key Laboratory of Solid Waste Treatment and Resource Recycle,Ministry of Education;Sichuan Tian-fu Innovation Research Institute,Southwest University of Science and Technology;Sichuan Liwu Copper Industry Co.,Ltd.;SWUST-Liwu Copper Industry Innovation Institute;Huili Pengchen Waste Residue Utilization Co.,Ltd.)

机构地区：[1]固体废物处理与资源化教育部重点实验室 [2]西南科大四川天府新区创新研究院 [3]四川里伍铜业股份有限公司 [4]西科大里伍铜业产业技术创新研究院 [5]会理鹏晨废渣利用有限公司

出　　处：《现代矿业》2024年第5期168-171,共4页Modern Mining

基　　金：甘孜州科技计划项目(编号:21zkjjh0017);四川省转移支付科技计划项目(编号:210031)。

摘　　要：为查清四川里伍铜矿选铜尾渣的工艺矿物学特性,指导里伍铜矿选矿厂进行生产工艺改进和优化,采用化学分析、X射线衍射分析仪(XRD)和光学显微镜等分析测试技术研究了选铜尾渣中的元素含量、矿物组成、主要矿物嵌布特征、矿物嵌布粒度及矿物单体解离度等。研究结果表明:选铜尾渣中的CuO含量为0.14%,ZnO含量为1.35%,Fe_(2)O_(3)含量为19.33%;主要金属矿物为磁黄铁矿、黄铜矿、铁闪锌矿,含少量斑铜矿、黄铁矿,脉石矿物主要为石英、黑云母、白云母、方解石及少量绿泥石;锌以硫化锌为主,含量为83.93%,其他形式存在的锌占7.57%;硫以磁黄铁矿为主,含量为81.98%;随着矿石粒度的减小,磁黄铁矿和铁闪锌矿单体解离度增加,为此,提高选铜尾渣的磨矿细度,有利于提升选铜尾渣中锌和硫的分选效率。In order to find out the process mineralogical characteristics of copper tailings from Liwu Copper Mine in Sichuan Province and guide the improvement and optimization of production process in Liwu Copper Mine Concentrator,the elemental content,mineral composition,main mineral embedding charac⁃teristics,mineral embedding particle size and mineral monomer dissociation degree of copper tailings are studied by chemical analysis,X-ray diffraction analyzer(XRD)and optical microscope.The results show that the content of CuO,ZnO and Fe_(2)O_(3) in the copper tailings is 0.14%,1.35% and 19.33%,respectively.The main metal minerals are pyrrhotite,chalcopyrite and marmatite,with a small amount of bornite and py⁃rite.The gangue minerals are mainly quartz,biotite,muscovite,calcite and a small amount of chlorite.Zinc is mainly zinc sulfide with content of 83.93%,and other forms of zinc account for 7.57%.Sulfur is dominat⁃ed by pyrrhotite with content of 81.98%.With the decrease of ore particle size,the dissociation degree of pyrrhotite and marmatite increases.Therefore,improving the grinding fineness of copper tailings is condu⁃cive to improving the separation efficiency of zinc and sulfur in copper tailings.

关 键 词：选铜尾渣 铁闪锌矿 磁黄铁矿 矿物基因 

分 类 号：TD91[矿业工程—选矿]