TRANSPORT OF METALS THROUGH GELLED SUPPORTED LIQUID MEMBRANES CONTAINING CARRIER

被引：38

作者：

BROMBERG, L ^{[1
]}

LEVIN, G ^{[1
]}

KEDEM, O ^{[1
]}

机构：

[1] WEIZMANN INST SCI,DEPT MEMBRANE RES & BIOPHYS,IL-76100 REHOVOT,ISRAEL

来源：

JOURNAL OF MEMBRANE SCIENCE | 1992年 / 71卷 / 1-2期

关键词：

SUPPORTED LIQUID MEMBRANES; GELS; METAL TRANSPORT; CARRIER; DI(2-ETHYLHEXYL)DITHIOPHOSPHORIC ACID;

D O I：

10.1016/0376-7388(92)85004-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The transport phenomena of metals through gelled supported liquid membranes (GSLMs) containing di(2-ethylhexyl)dithiophosphoric acid (DTPA) as a carrier have been studied. The gelled phase is composed of poly(vinyl chloride) PVC) and ortho-nitrophenyloctylether (NPOE). It was shown that the best method to obtain an optimal GSLM is to dry the membrane in water-free atmosphere. The maximum transfer rates of silver, mercury and cadmium under optimal stripping conditions were measured to be (3-6) x 10(-10) mol/cm2-sec. The effective diffusion coefficients decreased with the increase of PVC and DTPA concentrations.

引用

页码：41 / 50

页数：10

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