Abexperimental analysis of the transport mechanism of chromium(III) ions in the polymer inclusion membrane system stract

• Autorzy: Rajewski J. , Łobodzin P.

Warianty tytułu

PL

Eksperymentalna analiza mechanizmu transportu jonów Cr(III) w polimerowej membranie inkluzyjnej

• Języki publikacji: EN

Abstrakty

EN

The paper presents an experimental analysis of the mechanism of chromium(III) ion transport in a polymer inclusion membrane (PIM). First of all, the influence of the carrier concentration on chromium(III) transport kinetics through polymer inclusion membranes is investigated. Di-(2-ethylhexyl) phosphoric acid (D2EHPA) was used as a carrier. The initial Cr(III) concentration was changed. The authors indicate that the transport efficiency of Cr(III) depends on the D2EHPA concentration in the PIM. Regardless of the initial chromium(III) concentration, for experimental conditions, there was an optimal range of carrier concentration, somewhere between 30–50% v/v, for which the process was the most effective. The authors propose the “jumping” transport as the dominant transport mechanism in the investigated system.

PL

W pracy dokonano eksperymentalnej analizy mechanizmu transportu jonów chromu(III) w polimerowej membranie inkluzyjnej (PIM). W pierwszej kolejności zbadano wpływ stężenia przenośnika na kinetykę transportu jonów chromu (III) przez polimerową membrane inkluzyjną. Jako przenośnika jonów Cr(III) użyto kwasu di(2-etylkoheksylo) fosforowego (D2EHPA). Badania prowadzono przy różnym stężeniu początkowym jonów chromu. Autorzy wskazują, że efektywność transportu jest zależna od stężenia D2EHPA w PIM. Niezależnie od początkowego stężenia Cr(III) w warunkach prowadzenia badań wyznaczono zakres stężeń przenośnika 30–50% v/v, przy których transport zachodził najefektywniej. Zaproponowano mechanizm przeskokowy jako transport dominujący.

Słowa kluczowe

EN

PIM; chromium(III); jumping mechanism; D2EHPA

PL

PIM; chrom(III); mechanizm przeskokowy; D2EHPA

• Wydawca: Wydawnictwo Naukowe Instytutu Technologii Eksploatacji - Państwowego Instytutu Badawczego
• Czasopismo: Problemy Eksploatacji
• Rocznik: 2016
• Tom: no. 1
• Strony: 105--117
• Opis fizyczny: Bibliogr. 21 poz., rys., wykr.

Twórcy

autor

Rajewski J.

• New Chemical Syntheses Institute, Nitric Acid Technology Department, Al. Tysiąclecia Państwa Polskiego 13a, 24-110 Puławy

autor

Łobodzin P.

• Institute for Sustainable Technologies – National Research Institute, Industrial Biotechnologies Department, Pułaskiego 6/10, 26-600 Radom

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.