Study on separation of rare earth elements in complex system

被引：4

作者：

常宏涛 ^{[1
,2
]}

李梅 ^{[1
,2
]}

柳召刚 ^{[1
,2
]}

胡艳宏 ^{[1
,2
]}

张福顺 ^{[1
]}

机构：

[1] School of Materials Science and Engineering Inner Mongolia University of Science and Technology

[2] Inner Mongolia Autonomous Universities,Key Laboratory of New Technologies of Modern Metallurgy and Application of Rare Earth Materials

来源：

Journal of Rare Earths | 2010年 / 28(S1)卷 / S1期

关键词：

extraction; distribution ratio; separation coefficient; acetic acid; rare earths;

D O I：

暂无

中图分类号：

TF845 [稀土金属冶炼];

学科分类号：

080603 ;

摘要：

The effect of the feed acidity,acetic acid concentration and rare earth concentration on the distribution ratio,separation coefficient and extraction capacity of light rare earth elements were studied in the P204(DEHPA)-HCl system and P507(HEH/EHP)-HCl system both containing acetic acid,respectively. The results showed that the distribution ratio and separation coefficient decreased with increasing of acidity,and increased with increasing of acetic acid concentration and rare earths concentration,and the extraction capacity increased with increasing of acetic acid concentration. When pH value of feed was 2.0,[RE]/[acetic acid] was 1:1 and rare earth concentration 0.35 mol/L,in P204(DEHPA) -HCl system with acetic acid,the maximum separation coefficient(β) reached to βCe /La=4.09,βPr/Ce=1.96 and βNd/Pr=1.53,and the separation ability of this extraction system was better than P507(DEHPA)-HCl system.

引用

页码：116 / 119

页数：4

共 3 条

[1]

Solvent extraction of thorium, lanthanum and europium ions by bis（2-ethylhexyl）phosphoric acid using 2-nitrobenzo-18-crown-6 as ion size selective masking agent[J] . Abbas-Ali Zamani,Mohammad Reza Yaftian.Separation and Purification Technology . 2004 (2)

[2]

Separation of heavy rare earth elements with extraction resin containing 1-hexyl-4-ethyloctyl isopropylphosphonic acid[J] . Z.H Wang,G.X Ma,J Lu,W.P Liao,D.Q Li.Hydrometallurgy . 2002 (1)

[3]

Recovery and Separation of Lanthanum（III）, Aluminum（III）, Cobalt（II）, and Nickel（II） from Misch Metal by Solvent Extraction Using Bis（2-ethylhexyl） phosphinic Acid[J] . Yukio Nagaosa,Yao Binghua.Separation Science and Technology . 1997 (6)

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