矿产综合利用2024，Vol.45Issue(6)：199-206,8.DOI:10.3969/j.issn.1000-6532.2024.06.031
四川锂辉石尾矿工艺矿物学及锂的赋存状态
Process Mineralogy and Occurrence State of Lithium of Spodumene Tailings in Sichuan Province
摘要
Abstract
This is an article in the field of process mineralogy.The study objects are Lijiagou and Jiajika tailings,Sichuan Province.The samples were identified by optical microscopy,artificial heavy sand research(separation,identification,etc.),optical semi-quantitative analysis,chemical analysis,MLA automatic quantitative detection of minerals,LA-ICPMS in-situ analysis of mineral trace elements,and electron microscope energy spectrum analysis,X-ray powder crystal diffraction analysis and other work.The chemical mineral composition and lithium occurrence state of the tailings were studied.The results are as follows:1.The Li2O grade of the tailings from Lijiagou and Jiajika is 0.44%～0.64%,both of which are near the boundary grade and can be re-enriched.The content of associated valuable elements such as niobium,tantalum,beryllium and rubidium does not meet the comprehensive recycling standard.2.In the tailings from two different areas,the main material for reconcentration and recycling is spodumene and the associated trace useful minerals are mainly trace niobite-tantalite series minerals and beryl,while rubidium mainly exists in dispersed state in lithium Muscovite and potassium feldspar.3.The main recovery target mineral of tailings is spodumene,the theoretical grade of Li2O in concentrate products is 7.33%,and the theoretical recovery rates of Lijiagou and Jiajika card concentrate are 86.14%and 87.87%,respectively.4.关键词
锂辉石/尾矿/工艺矿物学/锂的赋存状态/李家沟/甲基卡Key words
Spodumene/Tailings/Process mineralogy/Occurrence state of lithium/Lijiagou/Jiajika分类
矿业与冶金引用本文复制引用
王盼盼,吴俊峰,陈林,陈彦庆..四川锂辉石尾矿工艺矿物学及锂的赋存状态[J].矿产综合利用,2024,45(6):199-206,8.基金项目
四川省地质调查研究院科研项目(SCIGS-CZDZX-2023002) （SCIGS-CZDZX-2023002）
《四川战略性锂辉石资源采选固废物矿物基因及资源化技术研究示范项目》 （）
