化工矿物与加工2024，Vol.53Issue(4)：16-23,8.DOI:10.16283/j.cnki.hgkwyjg.2024.04.003
离子型稀土矿二维多孔注液溶液渗流及稀土离子迁移规律研究
Study on percolation of two-dimensional porous injection solution and migration law of rare earth ions in ion-type rare earth ore
摘要
Abstract
The key to ensure efficient resource recovery is to master the flow of in-situ leaching solution and migra-tion law of rare earth ions in ion-type rare earth ore.Traditional column leaching test could not observe the flow diffu-sion of solution and law migration of rare earth ion during porous injection process.Based on this,two-dimensional box leaching model was designed to carry out porous injection leaching test with MgSO4 solution of 2%mass fraction as leaching agent.The results showed that the volume of leach liquid,the quality of leach rare earth ion and the rate of leach were different in different regions,and the solution infiltration mode changes from free infiltration to intersection infiltration.The area directly below the injection hole has the largest volume of leached liquid,followed by the inter-section area and the boundary area.The leaching rate of rare earth ions in the area directly below the injection hole was the highest,followed by the intersection area and the lowest in the boundary area.By analyzing the average leached rare earth ion mass in each area of the ore body,it was found that rare earth ion mass migrates from the injection cen-ter to both sides with the solution.The leached rare earth ion mass was the largest in the intersection area of the hole,followed by the boundary area of the ore body,and the leached rare earth ion mass was the least in the area directly below the injection hole.The research results can provide reference for the optimization of in-situ leaching injection method.关键词
离子型稀土/二维箱型浸矿模型/稀土离子迁移/浸出速度/浸出质量/稀土离子浓度Key words
ionic-type rare earth/two-dimensional box leaching model/migration of rare earth ions/leaching rate/leaching quality/rare earth ion concentration分类
矿业与冶金引用本文复制引用
王代惠,胡凯建,丁鹏杰,李立浩,汪豪,王晓军,钟文..离子型稀土矿二维多孔注液溶液渗流及稀土离子迁移规律研究[J].化工矿物与加工,2024,53(4):16-23,8.基金项目
国家自然科学基金项目(51904119,52174113,51874148) （51904119,52174113,51874148）
江西省教育厅科学技术研究项目(GJJ180475) （GJJ180475）
江西省青年孔冈学者奖励计划项目 （）
江西省"双千计划"项目(jxsq2019201043) （jxsq2019201043）
赣州市创新领军人才计划项目([2020]60). （[2020]60）
