Candidate membranes for the electrochemical salt-splitting of Sodium Sulfate

被引：20

作者：

Davis, Samuel M. ^{[2
]}

Gray, Gary E. ^{[1
]}

Kohl, Paul A. ^{[2
]}

机构：

[1] Georgia Tech Res Inst, Aerosp Transportat & Adv Syst Lab, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2008年 / 38卷 / 06期

关键词：

electrodialysis; electrolysis; ion exchange membranes; salt-splitting; sodium sulfate;

D O I：

10.1007/s10800-008-9519-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This work examines the properties of selected cation and anion exchange membranes for use in the electrochemical separation of sodium sulfate into sodium hydroxide and sulfuric acid. The effect of membrane type, electrolyte composition and ion exchange membrane thickness on the current efficiency was investigated. A decrease in current efficiency was observed due to ion migration under the influence of the electric field, and, to a lesser extent, diffusional losses. Increasing the membrane thickness improves the current efficiency at the cost of higher power due to the higher cell potential.

引用

页码：777 / 783

页数：7

共 15 条

[1]

[Anonymous], 1997, 1 COURSE ION PERMEAB

[2] Determination of the diffusion coefficients of ions in cation-exchange membranes, supposed to be homogeneous, from the electrical membrane conductivity and the equilibrium quantity of absorbed electrolyte [J].

Dammak, L ;

Lteif, R ;

Bulvestre, G ;

Pourcelly, G ;

Auclair, B .

ELECTROCHIMICA ACTA, 2001, 47 (03) :451-457

[3]

*DUPONT NAF, 2005, DUPONT NAF PERFL MEM

[4]

*DUPONT NAF PERFL, 2005, 9701 DUPONT NAF PERF

[5]

FREDETTE M, 2004, CLO2 GENERATORS KRAF

[6]

Gullichsen J., 2000, CHEM PULPING

[7]

Hasdou A, 1996, NEW J CHEM, V20, P515

[8] Ion transport in anion exchange membranes in presence of multivalent anions like sulfate or phosphate [J].

Jörissen, J ;

Breiter, SM ;

Funk, C .

JOURNAL OF MEMBRANE SCIENCE, 2003, 213 (1-2) :247-261

[9] THE BEHAVIOR OF ION-EXCHANGE MEMBRANES IN ELECTROLYSIS AND ELECTRODIALYSIS OF SODIUM-SULFATE [J].

JORISSEN, J ;

SIMMROCK, KH .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1991, 21 (10) :869-876

[10]

MARTIN AD, 1991, Patent No. 923075717

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