TRANSPORT-PROPERTIES OF ANION-EXCHANGE MEMBRANES IN CONTACT WITH HYDROCHLORIC-ACID SOLUTIONS - MEMBRANES FOR ACID RECOVERY BY ELECTRODIALYSIS

被引:30
作者
BOUDETDUMY, M
LINDHEIMER, A
GAVACH, C
机构
[1] Laboratory of Physical Chemistry of Polyphasic Systems, CNRS, USTL, 34033 Montpellier Cedex
关键词
ION-EXCHANGE MEMBRANE; ELECTROCHEMISTRY; ELECTRODIALYSIS; SELEMION MEMBRANE; MORGANE MEMBRANE; CHLORIDE ION TRANSPORT; RADIOTRACER TECHNIQUE;
D O I
10.1016/S0376-7388(00)81162-X
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The transport numbers of chloride ion as well as unidirectional fluxes under a constant current are measured by the radiotracer technique. The studied anion exchange membranes are in contact on both sides with hydrochloric acid at the same concentration. The membranes are the commercial membranes AAV Selemion and ARA Morgane, specially designed for the recovery of acids by electrodialysis. In addition, measurements of the electrical conductances of the membrane and of the amount of sorbed electrolyte at equilibrium have been carried out. The analysis of the results suggests a low dissociation degree of the acid present in the membrane phase.
引用
收藏
页码:57 / 68
页数:12
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