基于MLA的难选锂云母矿中性浮选生产实践  

Neutral flotation production practice of refractory lepidolite ore based on MLA

作　　者：张婷 邱廷省[1] 李振飞 王世俊 赵冠飞[1] 邹松 ZHANG Ting;QIU Tingsheng;LI Zhenfei;WANG Shijun;ZHAO Guanfei;ZOU Song(School of Resource and Environment Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Ganzhou Nonferrous Metallurgy Research Institute Co.,Ltd.,Ganzhou 341000,China;YichunTantalum-Niobium Mine Co.,Ltd.,Yichun 336003,China)

机构地区：[1]江西理工大学资源与环境工程学院,赣州341000 [2]赣州有色冶金研究所有限公司,赣州341000 [3]宜春钽铌矿有限公司,宜春336003

出　　处：《中国有色金属学报》2025年第3期954-968,共15页The Chinese Journal of Nonferrous Metals

基　　金：国家重点研发计划资助项目(2023YFC2908201);江西省主要学科学术和技术带头人培养计划资助项目(20232BCJ23053)。

摘　　要：针对碱性矿浆组合捕收剂浮选法回收锂云母造成尾水难处理的问题,本文以宜春钽铌矿坪石选厂锂资源为研究对象,采用自主研发的新型锂云母捕收剂GTL101,搭配控泡剂煤油的使用,进行了锂云母中性浮选的生产实践。利用MLA和显微镜研究了原矿、精矿和尾矿的矿物组成及含量、云母的解离度及嵌布状态等工艺矿物学特性。结果表明:在入浮处理量为58.54 t/h,Li_(2)O品位为0.166%时,工业试验获得精矿的产率为7.43%,Li_(2)O品位为1.19%、回收率为53.10%;浮选分离效率为49.80%。与现用药剂YM414相比,GTL101不仅具有选别指标上的优势,同时具有成本低、有利于尾矿沉降的特点。影响锂云母选别效果的主要因素除了解离度不足之外,含锂白云母因其高含量及与锂云母相近的可浮性而成为另一主要因素,也是下一步需要攻克的难点。Aiming at the problem of difficult disposal of tail water caused by alkaline slurry combined collector flotation,this study took the lithium resources of Pingshi Concentration Plant of Yichun Tantalum-Niobium Mine as the research object,and adopted the independently researched and developed new type of lepidolite collector GTL101,paired with the use of the froth-control reagent kerosene,to carry out the neutral flotation production practice of lepidolite.The mineral composition and content of raw ore,concentrate and tailing,the dissociation degree and embedded state of mica and other process mineralogy properties were studied by MLA and microscope.The results show that,at the flotation treatment capacity of 58.54 t/h and Li_(2)O grade of 0.166%,the industrial test obtained a concentrate yield of 7.43%,Li_(2)O grade of 1.19%,recovery of 53.10%;the flotation separation efficiency is 49.80%.Compared with the existing reagent YM414,GTL101 not only has the advantages of sorting indicators,but also has the characteristics of low cost and favorable to tailings settlement.Besides the lack of dissociation degree,lithium-containing muscovite due to its high content and similar floatability with lepidolite becomes another major factor affecting the separation effect of lepidolite,which is the difficulty to be overcome in the next step.

关 键 词：MLA 锂云母 浮选 分离效率 工业试验 

分 类 号：TD912[矿业工程—选矿]