Determination of diffusivity from steady state mass transfer measurements in continuous dialyzer under conditions of non-zero solution flux through membrane

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F09%3A00008603" target="_blank" >RIV/00216275:25310/09:00008603 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of diffusivity from steady state mass transfer measurements in continuous dialyzer under conditions of non-zero solution flux through membrane

Original language description

The transport of selected inorganic acids (HCl, H3PO4) through an anion-exchange membrane Neosepta-AFN has been investigated in a continuous dialyzer. Mass transfer rate of the individual acids has been quantified by diffusivity of acid in the membrane,which has been determined from the acid concentrations in the streams entering and leaving the dialyzer. For that purpose, two ordinary differential equations describing the steady-state concentration profiles of acid in both the compartments of the dialyzer have been numerically solved in the connection with an optimizing procedure. In the mathematical model used, mass transfer resistances in liquid films on both sides of the membrane and the flux of solution through the membrane have been taken into account. All the experiments carried at a constant temperature with subsequent data treatment have revealed that diffusivity of hydrochloric acid is about one order of magnitude higher than that of phosphoric acid.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering and Technology

ISSN

0930-7516

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

12

Country of publishing house

DE - GERMANY

Number of pages

7

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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