Transport of Nitric Acid through Anion-exchange Membrane Neosepta-AFN
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F04%3A00001665" target="_blank" >RIV/00216275:25310/04:00001665 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Transport of Nitric Acid through Anion-exchange Membrane Neosepta-AFN
Original language description
The paper presents the determination of mobility of H3O+ and NO3− ions and diffusivity of the non-dissociated form of acid on the basis of experiments with nitric acid carried out in a batch mixed cell with an anion-exchange membrane NEOSEPTA-AFN,which have been completed by measurements of membrane conductivity. The dependencies of mobility of H3O+ and NO3− ions upon the acid concentration in the membrane were approximated by the second degree polynomial, whose coefficients were determinedby the numerical integration of the differential equation describing the time dependence of nitric acid in the cell followed by an optimizing procedure. Diffusivity of the non-dissociated form was calculated from mobilities of H3O+ and NO3− ions.The model used is based on the Nernst-Planck electro-diffusion equation and takes into account ionic equilibrium between the species. Using all the experimental data obtained at various acid concentrations and rotational speeds ofthe stir
Czech name
Transport kyseliny dusičné anion-výměnnou membránou Neoseta-AFN
Czech description
Clanek presentuje stanoveni mobility H3O+ a NO3- iontu a difuzivity nedisociovane formy kyseliny na zaklade experimentu provedenych ve vsadkove michane cele s anion-vymennou membranou Neoseta-AFN. Tyto experimenty byly doplneny o mereni vodivosti membrany. Zavislosti mobilit H3O+ a NO3- iontu na koncentraci kyseliny v membrane byly aproximovany polynomem druheho stupne, jehoz koeficienty byly urceny numerickou integraci zakladni diferencialni rovnice popisujici casovou zavislost koncentrace kyseliny dusicne v cele s naslednou optimalizaci. Difuzivita nedisociovane formy pak byla vypoctena z mobilit H3O+ a NO3- iontu. Pouzity matematicky model je zalozen na Nernst-Planckove elektro-difuzni rovnici a respektuje iontovou rovnovahu. S pouzitim vsech experimentalnich dat ziskanych pri ruznych koncentracich kyseliny a frekvencich otaceni michadel bylo zjisteno, ze transportni charakteristiky uvedene vyse (s vyjimkou mobility NO3- iontu) jsou ovlivňovany koncentraci kyseliny dusicne v membran
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Desalination
ISSN
0011-9164
e-ISSN
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Volume of the periodical
Neuveden
Issue of the periodical within the volume
160(1)
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
51-66
UT code for WoS article
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EID of the result in the Scopus database
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