中南大学学报（自然科学版）2025，Vol.56Issue(8)：3104-3116,13.DOI:10.11817/j.issn.1672-7207.2025.08.002
煤矸石中锂-镓-稀土回收技术研究进展
Research progress of lithium-gallium-rare earth recovery technology in coal gangue
摘要
Abstract
Under the background of a new round of scientific and technological revolution,the efficient development and utilization of strategic resources such as lithium,gallium and rare earth are providing a key raw material guarantee for energy transformation.Coal gangue,a bulk solid waste discharged during coal mining and processing,is rich in strategic metal elements and represents a highly valuable reserve resource.The occurrence characteristics and recovery technologies of lithium,gallium,and rare earth in coal gangue were reviewed.The results indicate that these elements are primarily tightly coupled with aluminosilicate minerals and organic matter,existing mainly in aluminosilicate-bound,organic-bound,and acid-soluble forms.Regarding recovery technologies,current research focuses on methods such as precipitation,solvent extraction,and adsorption,which have achieved efficient separation and recovery of lithium,gallium,and rare earth from coal gangue.However,challenges remain,including high organic solvent consumption,elevated energy demands,and poor selectivity.Moving forward,future research must prioritize the development of low-energy,high-selectivity,and environmentally friendly technologies to reduce reliance on traditional mineral resources,promote sustainable resource utilization,and support the realization of national"dual-carbon"strategic goals.关键词
煤矸石/锂/镓/稀土/回收Key words
coal gangue/lithium/gallium/rare earth/recycling分类
化学化工引用本文复制引用
杨胜超,乔金鹏,康超,孙梦瑶,段晨龙..煤矸石中锂-镓-稀土回收技术研究进展[J].中南大学学报（自然科学版）,2025,56(8):3104-3116,13.基金项目
地球深部探测与矿产资源勘查国家科技重大专项项目(2024ZD1004000) （2024ZD1004000）
国家自然科学基金杰出青年基金资助项目(52125403) （52125403）
国家自然科学基金资助项目(52204294) （52204294）
江苏省自然科学基金资助项目(BK20221131)(Project(2024ZD1004000)supported by the National Science and Technology Major Project for Deep Earth Probe and Mineral Resources Exploration （BK20221131）
Project(52125403)supported by the National Natural Science Foundation of China for Distinguished Young Scholars （52125403）
Project(52204294)supported by the National Natural Science Foundation of China （52204294）
Project(BK20221131)supported by the Natural Science Foundation of Jiangsu Province) （BK20221131）
