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赣州某钨尾矿中锂的浮选回收与浸出试验
引用本文:王威,常学勇,柳林,刘红召,曹耀华,张 博,王洪亮,赵恒勤.赣州某钨尾矿中锂的浮选回收与浸出试验[J].金属矿山,2018,47(11):185-188.
作者姓名:王威  常学勇  柳林  刘红召  曹耀华  张 博  王洪亮  赵恒勤
作者单位:1. 中国地质科学院郑州矿产综合利用研究所,河南 郑州 450006;2. 国土资源部多金属矿评价与综合利用重点实验室,河南 郑州 450006;3. 河南省黄金资源综合利用重点实验室,河南 郑州 450006;4. 国家非金属矿资源综合利用工程技术研究中心,河南 郑州 450006
基金项目:* 国家自然科学基金项目 (编号:51504225),中国地质调查局地质调查项目(编号:121201017000160907)。
摘    要:赣州某选钨尾矿Li2O品位为0.34%,锂主要赋存在云母矿物中。为确定锂的回收利用工艺,对有代表性试样进行了浮选工艺及浮选锂精矿焙烧-浸出工艺条件研究。结果表明,采用1粗3精3扫、中矿顺序返回闭路浮选流程处理试验原料,可获得Li2O品位为1.18%、回收率为58.69%的锂精矿;浮选锂精矿与氯化剂(氯化钙与氯化钠的质量配合比为1∶1)按质量比1∶0.6混合后在900 ℃焙烧1 h,焙烧产物在液固质量比为1.5∶1、浸出温度为50 ℃、浸出时间为2 h情况下水浸,锂浸出率达到98.80%。因此,浮选-氯化焙烧-浸出工艺可实现赣州某选钨尾矿中锂的综合回收。

关 键 词:锂云母  浮选  氯化焙烧  浸出  

Experiment of Flotation Recovery and Leaching of Lithium from a Tungsten Tailings in Ganzhou
Wang Wei,Chang Xueyong,Liu Lin,Liu Hongzhao Cao Yaohua,Zhang Bo,Wang Hongliang,Zhao Hengqin.Experiment of Flotation Recovery and Leaching of Lithium from a Tungsten Tailings in Ganzhou[J].Metal Mine,2018,47(11):185-188.
Authors:Wang Wei  Chang Xueyong  Liu Lin  Liu Hongzhao Cao Yaohua  Zhang Bo  Wang Hongliang  Zhao Hengqin
Affiliation:1. Zhengzhou Institute of Multipurpose Utilization of Mineral Resources, Zhengzhou 450006,China;2. Key Laboratory of Evaluation and Multipurpose Utilization of Polymetallic Ore, Ministry of Land and Resources,Zhengzhou 450006,China;3. Key Laboratory of Gold Resource Comprehensive Utilization in Henan Province, Zhengzhou 450006,China;4. China National Engineering Research Center for Comprehensive Utilization of Non-metallic Minerals, Zhengzhou 450006, China
Abstract:A tungsten tailings in Ganzhou contains 0.34% Li2O, the lithium is mainly contained in the mica. The flotation process conditions and lithium flotation concentrate roasting-leaching process conditions were studied to determine the lithium recovery and utilization process. The results showed that a lithium concentrate could be gotten with the Li2O grade 1.18% and lithium recovery rate 58.69% through the flotation process of one roughing three cleaning three scavenging and middlings returned to the flowsheet in turn closed circuit. The lithium reaching rate could reach to 98.80% while the leaching conditions were flotation lithium concentrate mixed with chlorinating agent (the mass ratio of calcium chloride to sodium chloride is 1∶1) by mass ratio 1∶0.6 , roasting 1 h at 900 ℃, leaching 2 hours at 50 ℃, the ratio of liquid to roasting product 1.5∶1. Therefore, the flotation-chlorination roasting-leaching process could realize the comprehensive recovery of lithium from the tungsten tailings in Ganzhou.
Keywords:Lithia mica  Flotation  Chlorination roasting  Leaching
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