Exchange Sorption and Electrical Conductivity of Heterogeneous Anion-Exchange Membranes in Mixed Sodium Hydroxide/Sodium Naphthenate and Sodium Sulfate/Sodium Nitrate Electrolyte Solutions

Exchange Sorption and Electrical Conductivity of Heterogeneous Anion-Exchange Membranes in Mixed Sodium Hydroxide/Sodium Naphthenate and Sodium Sulfate/Sodium Nitrate Electrolyte Solutions

The physicochemical properties of MA-40 and MA-41 ion-exchange membranes have been studied in two systems with different electrolyte compositions. The following test systems have been chosen for the study: anion-exchange membrane/mixed solution of sodium hydroxide and sodium naphthenate and anion-ex...

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Bibliographic Details
Published in:Petroleum chemistry Vol. 58; no. 13; pp. 1159 - 1164
Main Authors: Achoh, A. R., Pribytkov, F. B., But, A. Yu, Zabolotsky, V. I.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-12-2018
Springer
Springer Nature B.V
Subjects:
Aluminum compounds
Anion exchanging
Caustic soda
Chemistry
Chemistry and Materials Science
Conductors
Electric properties
Electrical conductivity
Electrical resistivity
Electrolytes
Hydroxides
Industrial Chemistry/Chemical Engineering
Ion exchange
Mathematical analysis
Membranes
Percolation
Sodium
Sodium hydroxide
Sodium naphthenate
Sodium sulfate
Sorption
Sulfates
Testing equipment
selectivity
mobility
membrane
percolation
ion exchange
naphthenic acids
electrical conductivity
electrodialysis
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Summary:The physicochemical properties of MA-40 and MA-41 ion-exchange membranes have been studied in two systems with different electrolyte compositions. The following test systems have been chosen for the study: anion-exchange membrane/mixed solution of sodium hydroxide and sodium naphthenate and anion-exchange membrane/mixed solution of sodium sulfate and sodium nitrate. Ion-exchange sorption and electrical conductivity have been studied in these systems. It has been found that both of the membranes are more selective for hydroxide ions than for naphthenic acid anions in the system with sodium naphthenate. A conductor–insulator percolation transition has been observed in the МА-40 and MA-41 membranes saturated with organic counterions. The mobilities and diffusion coefficients of hydroxide, nitrate, and sulfate ions in the test membranes haves been calculated.
ISSN:0965-5441
1555-6239
DOI:10.1134/S0965544118130029