摘要
A detailed mineralogical characterization of a tin-polymetallic ore from Mengzi,Yunnan Province,China,was undertaken by automated electron microprobe-based mineral mapping and quantitative analysis methods.The results show that the most valuable metal is Sn（0.98%,mass fraction）.The main tin minerals are cassiterite and stannite,which account for 94.90% of total tin.Other metals,such as Cu（0.261%）,Zn（0.612%） and Pb（0.296%） can also be seen as valuable metal to be recovered.Minerals such as pyrrhotite,pyrite,arsenopyrite,sphalerite,galena and chalcopyrite are disseminated in the ore.Quartz,sericite and dolomite are the main gangue.The optimal grinding fineness should be chosen as 0.037 mm to make sure that most of the tin minerals can be liberated from other minerals.
通过以自动化电子探针为基础的矿物扫描和定量分析,研究云南某锡多金属矿的工艺矿物学。结果表明,矿石中锡(0.98%)为最有回收价值的金属,锡石和黝锡矿为锡的主要矿物,占锡总量的94.90%;其他金属,如铜(0.261%)、锌(0.612%)和铅(0.296%)可作为有价金属回收。磁黄铁矿、黄铁矿、毒砂、闪锌矿、方铅矿、黄铜矿等矿物呈浸染状分布在矿石中。石英、绢云母和白云石为主要的脉石矿物。选择0.037mm作为最佳的磨矿细度以确保锡矿物的单体解离。
基金
Project(50774094) supported by the National Natural Science Foundation of China
Project(2010CB630905) supported the National Basic Research Program of China
