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Permeability of anion-exchange membrane for Cl– ions. Dialysis of hydrochloride acid in the presence of nickel chloride
Authors: Palatý Zdeněk | Bendová Helena
Year: 2010
Type of publication: článek v odborném periodiku
Name of source: Membrane Water Treatment
Publisher name: Techno Press
Place: Daejeon
Page from-to: 39-47
Titles:
Language Name Abstract Keywords
cze Permeabilita anion-výměnné membrány pro Cl- ionty. Dialýza kyseliny chlorovodíkové za přítomnosti chloridu nikelnatého Byla zkoumána separace vodného roztoku HCl-NiCl2 anion-výměnnou membránou Neosepta-AFN za použití konvenční dvoukomorové cely s míchadly. Dialyzační proces byl charakterizován koeficientem permeability membrány k Cl– iontům. Tato veličina byla stanovena numerickou integrací rovnic, které popisují časovou závislost celkové koncentrace Cl- iontů v komoře na počátku naplněné přijímacím roztokem(vodou), kombinované s optimalizační procedurou. Vsádková dialýza; kyselina chlorovodíková; chlorid nikelnatý; permeabilita membrány; anion-výměnná membrána
eng Permeability of anion-exchange membrane for Cl– ions. Dialysis of hydrochloride acid in the presence of nickel chloride Using a conventional two-compartment cell with stirrers the separation of an aqueous solution of HCl-NiCl2 by an anion-exchange membrane Neosepta-AFN was investigated. The dialysis process was characterized by the permeability coefficient of the membrane towards to Cl– ions. This quantity was determined by the numerical integration of equations, which describe the time dependence of the total concentration of Cl– ions in compartment initially filled with stripping agent (water), combined with an optimizing procedure. The analysis of the experimental results showed that this permeability coefficient is a satisfactory characteristic for the process studied. It can be graphically correlated with the initial acid and initial salt concentrations in the compartment initially filled with acid+salt mixture. Batch dialysis; hydrochloric acid; nickel chloride; permeability of membrane; anion-exchange membrane