Facilitated transport of boric acid by 1,3-diols through supported liquid membranes

被引：26

作者：

Bachelier, N ^{[1
]}

Chappey, C ^{[1
]}

Langevin, D ^{[1
]}

Metayer, M ^{[1
]}

Verchere, JF ^{[1
]}

机构：

[1] UNIV ROUEN,FAC SCI,URA 500 CNRS,LAB POLYMERES BIOPOLYMERES MEMBRANES,F-76821 MONT ST AIGNAN,FRANCE

来源：

JOURNAL OF MEMBRANE SCIENCE | 1996年 / 119卷 / 02期

关键词：

boric acid; complexes; 1,3-diols; supported liquid membrane; facilitated transport; carrier-mediated transport;

D O I：

10.1016/0376-7388(96)00134-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Boric acid is selectively transported by 1,3-diols from a source aqueous phase into a receiving alkaline aqueous phase through a phase of organic solvent (o-dichlorobenzene), Measurements of the transport rates were made using a U-tube apparatus. The process was adapted to liquid membranes supported on polypropylene films. The factors which influence the stability of the supported liquid membrane are discussed, Assuming that the transport of the neutral 1:1 diol-boric acid complex within the organic phase is diffusion-limited, a model is proposed that realistically represents the fluxes of boric acid as a function of the initial concentrations of boric acid acid diol. The experimental diffusion coefficients were determined and agreed satisfactorily with the calculated values.

引用

页码：285 / 294

页数：10

共 26 条

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