当前位置: X-MOL 学术Sep. Purif. Technol. › 论文详情
Improved rare earth elements recovery from fluorescent lamp wastes applying supported liquid membranes to the leaching solutions
Separation and Purification Technology ( IF 5.107 ) Pub Date : 2019-05-10 , DOI: 10.1016/j.seppur.2019.05.015
S. Pavón, A. Fortuny, M.T. Coll, A.M. Sastre

Due to the continuously growing demand of rare earths in advanced technologies, end-of-life fluorescent lamps may become feasible rare earth elements (REEs) raw materials, reducing thus their supply risk. Considering acid leaching as the most common method in the metal recover from an end-of-life product real scratch resulting from the fluorescent lamps, this paper proposes an improvement of the REEs recovery from these wastes adding a supported liquid membrane (SLM) step to minimize the loss of these metals in the first leaching (L1). HNO3 or HCl are the most appropriate acid agents in the L1 stage considering the balance between the Ca (II) impurity removal and the REEs losses minimization. These REEs lost can be entirely recovered from the L1 leachate by flat sheet supported liquid membranes (FSSLM) using Cyanex 923 as carrier and Na2EDTA as the receiving phase. REEs, especially Y and Eu, have been recovered in quantitative yields using a L1–FSSLM–L2 process.
更新日期:2019-05-16

 

全部期刊列表>>
化学/材料学中国作者研究精选
Springer Nature 2019高下载量文章和章节
ACS材料视界
南京大学
自然科研论文编辑服务
剑桥大学-
中国科学院大学化学科学学院
南开大学化学院周其林
课题组网站
X-MOL
北京大学分子工程苏南研究院
华东师范大学分子机器及功能材料
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug