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Research progress of lithium extraction process in lithium-containing salt lake

YU Jiangjiang1,2,ZHENG Mianping2,WU Qian2   

  1. 1School of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu 610059,Sichuan,China;2MLR Key Laboratory of Saline Lake Resources and Environments,Institute of Mineral Resources,CAGS,Beijing 100037,China
  • Online:2013-01-25 Published:2013-01-05

富锂盐湖提锂工艺研究进展

余疆江1,2,郑绵平2,伍 倩2   

  1. 1成都理工大学核技术与自动化工程学院,四川 成都 610059;2中国地质科学院矿产资源研究所,国土资源部盐湖资源与环境重点实验室,北京 100037

Abstract: The origins and main distribution areas of global lithium-containing salt lakes are discussed though the analysis of material sources of lithium-containing salt lakes in the paper. The deposits of lithium resource of global lithium-contained salt lakes are presented. According to the chemical composition of brine,the lithium-containing salt lakes can be divided into three categories:carbonate,sulfate and chloride. According to the value of Mg/Li ratio,the brine can be further divided into high and low ratio of Mg/Li. The development processes of lithium resources in different types of lithium-containing salt lakes are reviewed. The following problems should be solved in commercialization of lithium extraction from salt lake:lower energy consumption; simpler process; lower cost; less pollution; emphasizing on comprehensive development and utilization of minerals; improving the added value of minerals; combination of lithium extraction with environmental pretention.

Key words: lithium extraction progress, salt lake, Mg/Li ratio, resource

摘要: 通过对富锂盐湖物质来源的分析,论述了全球富锂盐湖的成因以及主要分布区域,列出了全球主要富锂盐湖的锂资源量及分布情况。按照富锂盐湖水化学组分的不同将富锂盐湖划分为碳酸盐型、硫酸盐型和氯化物型三大类,并根据盐湖水Mg/Li比值的大小分为高镁锂比和低镁锂比卤水。按照上述对富锂盐湖的分类,对不同类型的富锂盐湖锂资源的开发工艺进行了详细的综述。提出盐湖提锂工业化进程需解决以下几个问题:开发能耗低、工艺简单、成本低、污染小的工艺路线;注重矿产的综合开发利用、提高矿产开发的附加值;将提锂工艺的开发和环境保护结合起来。

关键词: 提锂工艺, 盐湖, 镁锂比, 资源