摘要
以内蒙古某锡石多金属硫化矿为研究对象,采用第三代矿物参数自动定量分析(AMICS)等方法,对矿石的化学组成、矿物组成和粒度组成,主要矿物的嵌布粒度、解离特征和嵌布特征,主要目的元素的赋存状态进行了系统的工艺矿物学研究。结果表明,矿石主要有价元素为Cu、Ag和Sn,含Cu矿物以黄铜矿、黝铜矿等硫化铜矿物为主,Ag主要以类质同象形式分布在黝铜矿中,Sn主要以锡石的形式存在;在粗磨条件下,虽然各硫化矿物的解离度不足70%,但是硫化矿集合体的解离度达到了80%,考虑到锡石性脆易碎并且主要与硫化矿连生的特点,建议在粗磨条件下,先采用混合浮选回收铜银硫化矿集合体,再采用重选回收锡石,为内蒙古同类锡石多金属硫化矿的开发利用提供了借鉴。
This paper takes a certain cassiterite polymetallic sulfide ore deposit in Inner Mongolia as its research object,using methods such as the third-generation automatic quantitative analysis for mineral parameters(AMICS),a systematic process mineralogical study was conducted on the chemical composition,mineral composition,and grain size distribution of the ore,as well as the grain size,liberation characteristics,and occurrence characteristics of the main minerals,and the occurrence state of the primary target elements.The results indicate that the primary valuable elements in the ore are Cu,Ag,and Sn.Cu is primarily present as sulfide copper minerals such as chalcopyrite and tetrahedrite,Ag is mainly distributed in tetrahedrite in a solid solution form,and Sn is primarily present as cassiterite.Under coarse grinding conditions,although the liberation degree of individual sulfide minerals is less than 70%,the liberation degree of sulfide mineral aggregates reaches 80%.Considering the brittle and fragile nature of cassiterite and its tendency to occur in association with sulfide minerals,it is recommended that under coarse grinding conditions,mixed flotation be first used to recover the copper-silver sulfide mineral aggregates,followed by gravity separation to recover cassiterite.This provides a reference for the development and utilization of similar cassiterite polymetallic sulfide ores in Inner Mongolia.
作者
施雨航
宋宝旭
马芳源
南楠
杨光
王艺竹
王帅
韩济全
SHI Yu-hang;SONG Bao-xu;MA Fang-yuan;NAN Nan;YANG Guang;WANG Yi-zhu;WANG Shuai;HAN Ji-quan(School of Mining Engineering,University of Science and Technology Liaoning,Anshan 114001,China)
出处
《岩石矿物学杂志》
北大核心
2026年第1期86-92,共7页
Acta Petrologica et Mineralogica
基金
辽宁科技大学博士启动基金
辽宁省教育厅面上项目(LJKMZ20220650)。
关键词
工艺矿物学
微细粒嵌布
矿物解离度
黝铜矿
锡石
process mineralogy
fine grain dissemination
mineral dissociation degree
tetrahedrite
cassiterite
