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	Study on a Novel Disphase Supplying Supported Liquid Membrane for Transport Behavior of Divalent Nickel Ions
	Pei L.
	2012
关键词	disphase supplying supported liquid membrane organic phosphonic acid supplying feed phase supplying stripping phase nickel ion mass-transfer rates metal-ions extraction equilibria slm extraction separation acid recovery kerosene carrier d2ehpa
英文摘要	A novel disphase supplying supported liquid membrane (DSSLM), containing supplying feed phase and supplying stripping phase for transport behavior of Ni(II), have been studied. The supplying supported feed phase included feed solution and di(2-ethyhexyl) phosphoric acid (HDEHP) as the carrier in kerosene, and supplying stripping phase included HDEHP as the carrier in kerosene and HCl as the stripping agent. The effects of volume ratio of membrane solution to feed solution (O/F), pH, initial concentration of Ni(II) and ionic strength in the feed solution, volume ratio of membrane solution to stripping solution (O/S), concentration of H2SO4 solution, HDEHP concentration in the supplying stripping phase on transport of Ni(II), the advantages of DSSLM compared to the traditional supported liquid membrane (SLM), the system stability, the reuse of membrane solution and the retention of membrane phase were studied. Experimental results indicated that the optimum transport of Ni(II) was obtained when H2SO4 concentration was 2.00 mol.L-1, HDEHP concentration was 0.120 mol.L-1, and O/S was 4 : 1 in the supplying stripping phase, O/F was 1 :10 and pH was 5.20 in the supplying feed phase. The ionic strength in supplying feed phase had no obvious effect on transport of Ni(II). When initial Ni(II) concentration was 2.00x10(-4) mol/L, the transport percentage of Ni(II) was up to 93.1 % in 250 min. The kinetic equation was deduced in terms of the law of mass diffusion and the interface chemistry.
出处	Chinese Journal of Chemical Engineering
卷	20
期	4
页	633-640
收录类别	SCI
语种	英语
ISSN号	1004-9541
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30795]
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.. Study on a Novel Disphase Supplying Supported Liquid Membrane for Transport Behavior of Divalent Nickel Ions. 2012.

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