云南安宁黏土型锂矿中锂铝综合回收工艺研究OA
Analysis of Occurrence State of Lithium and Aluminum in a Clay-Type Lithium Mine in Anning,Yunnan Province and Experimental Study on Comprehensive Recovery
云南安宁黏土型锂矿主要成分为一水硬铝石、高岭石、锂绿泥石和一水软铝石.锂绿泥石-高岭石集合体和一水硬铝石、一水软铝石的嵌布关系密切,分选过程中相互夹杂将较为严重.锂精矿中Li2O最高理论品位为0.84％,属于低品位难处理高铝土矿型黏土型锂矿.为开发该资源,在矿石性质研究的基础上开展选矿试验研究.采用BK410作为铝土矿捕收剂,经"一次粗选-两次扫选-两次精选"工艺流程,闭路试验获得铝土矿精矿Al2O3 品位68.62％,Al2O3 回收率38.50％,SiO2 品位8.31％,铝硅比8.26;锂精矿Li2O品位0.46％,Li2O回收率91.20％的浮选指标.该研究结果可为开发利用该类黏土型锂矿提供一定的基础技术依据.
The main components of a clay-type lithium mine in Anning,Yunnan Province are diaspore,kaolinite,lithium chlorite,and boehmite.The chlorite-kaolinite aggregate is closely related to the embedding of diaspore and boehmite,and the inclusion with each other will be more serious in the sorting process.The highest theoretical grade of Li2O in the lithium concentrate is 0.84％.It belongs to low-grade refractory high-bauxite clay-type lithium ore.In order to develop this resource,on the basis of the study of ore properties,the beneficiation experiment is carried out.BK410 is used as bauxite collector,and through the process flow of"one roughing-two sweeping-two concentration",the bauxite concentrate Al2O3 grade is 68.62％,the Al2O3 recovery rate is 38.50％,the SiO2 grade is 8.31％and the aluminum-silicon ratio is 8.26 by closed-circuit test;The flotation index of the lithium concentrate with a Li2O grade of 0.46％and a Li2O recovery of 91.20％.The research results can provide some basic technical basis for the development and utilization of this kind of clay-type lithium ore.
翟鑫;赵艳林;吴世鹏;王中明;杨旭
西南有色昆明勘测设计(院)股份有限公司,云南 昆明 650214西南有色昆明勘测设计(院)股份有限公司,云南 昆明 650214矿冶科技集团有限公司,北京 100160||矿物加工科学与技术全国重点实验室,北京 102628矿冶科技集团有限公司,北京 100160||矿物加工科学与技术全国重点实验室,北京 102628西南有色昆明勘测设计(院)股份有限公司,云南 昆明 650214
矿业与冶金
黏土型锂矿反浮选
Clay typeLithium orereverse flotation
《世界有色金属》 2026 (16)
1-4,4
云南省自然资源厅2024年度新一轮找矿突破战略行动科技支撑第一批项目"云南安宁黏土型锂资源选冶试验研究及应用"(20240315)资助.
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