摘要
随着“双碳”目标的提出,锂在新能源材料领域中的应用受到高度关注,锂的需求呈现爆发式增长。世界锂资源以矿石锂和盐湖锂为主,盐湖锂因其储量大成为未来锂资源开发的重点,因而占比最大的硫酸盐型盐湖成为焦点。因盐湖卤水组成差异较大,叠加硫酸盐型盐湖特殊属性,使得锂在盐田蒸发阶段存在多种结晶形式而造成损失,增加了锂的有效富集难度。总结了前人针对富锂硫酸盐型盐湖的蒸发实验研究结果,结合相图分析总结富锂硫酸盐型盐湖蒸发结晶析盐规律,重点关注锂的浓缩状态及析盐结晶形式,为硫酸盐型盐湖锂资源开发提供参考。
With the proposal of“dual carbon”goal,the application of lithium in the field of new energy materials has re⁃ceived great attention,and the demand for lithium has shown explosive growth.The world′s lithium resources are mainly composed of ore lithium and salt lake lithium.Salt lake lithium has become the focus of future lithium resource development because of its large reserves,and therefore the sulfate type salt lake,which accounts for the largest proportion,has become the focus.Due to the significant difference in the composition of salt lake,and the special properties of sulfate type salt lake,lithium has multiple crystalline forms in the evaporation stage of saltpan and causes losses,which increases the difficulty of effective enrichment of lithium.The results of evaporation experiment of lithium⁃rich sulfate salt lakes were summarized,the law of crystallization salt evolution during evaporation based on the phase diagram was analyzed and summarized,with a fo⁃cuses on the concentrated state of lithium and the crystalline form of lithium,providing reference for the development of lithium resources in sulfate salt lakes.
作者
杨游胜
姚智豪
赵志星
冯霞
曾英
于旭东
YANG Yousheng;YAO Zhihao;ZHAO Zhixing;FENG Xia;ZENG Ying;YU Xudong(College of Materials and Chemistry&Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2024年第4期1-7,共7页
Inorganic Chemicals Industry
基金
四川省科技计划项目(2022YFQ0075)。
关键词
锂
硫酸盐型盐湖
卤水蒸发
析盐规律
相图
lithium
sulphate salt lakes
brine evaporation
salt precipitation law
phase diagram
