QQ客服 官方微博 反馈留言

	Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO(3) solution as stripping solution
	Pei L. A. ; Wang L. M. ; Yu G. Q.
	2011
关键词	supported dispersion liquid membrane Di(2-ethylhexyl) phosphoric acid europium(III) dispersion phase separation flux separation rate metal-ion separation solvent-extraction waste-water nickel ions removal stability transport contactors phosphate recovery
英文摘要	The Eu(III) separation in supported dispersion liquid membrane (SDLM), with polyvinylidene fluoride membrane (PVDF) as the support and dispersion solution containing HNO(3) solution as the stripping solution and Di(2-ethylhexyl) phosphoric acid (D2EHPA) dissolved in kerosene as the membrane solution, was studied. The effects of pH value, initial concentration of Eu(III) and different ionic strengths in the feed phase, volume ratio of membrane solution and stripping solution, concentration of HNO3 solution, concentration of carrier, different stripping agents in the dispersion phase on the separation of Eu(III) were also investigated, respectively. As a result, the optimum separation conditions of Eu(III) were obtained as the concentration of HNO3 solution was 4.00 mol/L, concentration of D2EHPA was 0.160 mol/L, and volume ratio of membrane solution to stripping solution was 30: 30 in the dispersion phase, and pH value was 5.00 in the feed phase. Ionic strength had no obvious effect on the separation of Eu(III). Under the optimum conditions studied, when initial concentration of Eu(III) was 1.00x10(-4) mol/L, the separation rate of Eu(III) was up to 94.2% during the separation period of 35 min. The kinetic equation was developed in terms of the law of mass diffusion and the theory of interface chemistry. The results were in good agreement with the literature data.
出处	Journal of Rare Earths
卷	29
期	1
页	7-14
收录类别	SCI
ISSN号	1002-0721
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23229]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Pei L. A.,Wang L. M.,Yu G. Q.. Separation of Eu(III) with supported dispersion liquid membrane system containing D2EHPA as carrier and HNO(3) solution as stripping solution. 2011.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。