四川师范大学学报（自然科学版）2013，Vol.36Issue(2)：302-305,4.DOI:10.3969/j.issn.1001-8395.2013.02.030
稀土矿山废弃渣中稀土资源的回收研究
Research on Reclamation of Rare Earth Slag
摘要
Abstract
Taking the rare earth slag of Mianning county of Sichuan province as a sample, this paper studied its rare earth content. When the leaching liquid' s condition is T = 323 K,t = 60 min,c( H2SO4) =0. 5 mol/L, we can get the largest amount of rare earth, and its content is 20.21 mg/g( La:7. 20 mg/g,Ce:9. 10 mg/g,Pr:1.07 mg/g,Nd:2. 84 mg/g). Then the wooden fiber curing tannins adsorption materials are used to adsorb the leaching slag, when the adsorption condition is T = 303 K,t =3 h,PH =6.0,mTannin =0.4 g, we can get the largeset amount of rare earth's adsorption rate of 98. 51% with a close of C2H4( NH2 )4. The research result shows that this method is suitable for recycling rare earth in the waste slag.关键词
稀土矿渣/稀土回收/稀硫酸浸取/木纤维固化单宁吸附/吸附量Key words
rare earth waste alag/ recycling rare earth/ dilute sulfuric acid leaching/ wooden fiber curing tannins adsorption materials/ adsorption rate分类
化学化工引用本文复制引用
姜英,黄杵睿,兰婷,李妍,江文世,赵仕林..稀土矿山废弃渣中稀土资源的回收研究[J].四川师范大学学报（自然科学版）,2013,36(2):302-305,4.基金项目
四川省高校先进功能材料重点实验室开放课题(KFKT2010-01)资助项目 （KFKT2010-01）
