Kontinuální dialýza karboxylových kyselin: Rozpustnost a difuzivita kyseliny citrónové v membráně Neosepta-AMH

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Continuous Dialysis of Carboxylic Acids: Solubility and Diffusivity of Citric Acid in Neosepta-AMH Membrane

Popis výsledku v původním jazyce

The transport of citric acid through an anion-exchange membrane Neosepta-AMH in a two-compartment continuous dialyzer has been investigated. The basic data obtained were completed by the measurement of the sorption isotherm. Mass transfer rate has been quantified by diffusivity of citric acid in the membrane, which has been determined from the acid concentrations in the streams entering and leaving the dialyzer. For that purpose, a set of ordinary differential equations describing the concentrations fields in both the compartments of the dialyzer has 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 have been taken into account.All the experiments carried out at steady state (temperature 25 °C) have revealed that diffusivity of citric acid in the Neosepta-AMH membrane goes through a maximum at the concentration of 0.464 kmol m-3. In the concentration range of c

Název v anglickém jazyce

Continuous Dialysis of Carboxylic Acids: Solubility and Diffusivity of Citric Acid in Neosepta-AMH Membrane

Popis výsledku anglicky

The transport of citric acid through an anion-exchange membrane Neosepta-AMH in a two-compartment continuous dialyzer has been investigated. The basic data obtained were completed by the measurement of the sorption isotherm. Mass transfer rate has been quantified by diffusivity of citric acid in the membrane, which has been determined from the acid concentrations in the streams entering and leaving the dialyzer. For that purpose, a set of ordinary differential equations describing the concentrations fields in both the compartments of the dialyzer has 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 have been taken into account.All the experiments carried out at steady state (temperature 25 °C) have revealed that diffusivity of citric acid in the Neosepta-AMH membrane goes through a maximum at the concentration of 0.464 kmol m-3. In the concentration range of c

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 33rd International Conference of Slovak Society of Chemical Engineering

ISBN

80-227-2409-2

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Tatranské Matliare, Slovakia

Místo konání akce

Tatranské Matliare, Slovakia

Datum konání akce

22. 5. 2006

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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