Proton - ionizable lariat ethers in ion flotation process - effect of alkali metal cations

• Autorzy: Ulewicz M. , Maciejewski P.
• Języki publikacji: EN

Abstrakty

EN

An experimental investigation is presented on flotation of Cs+, Sr2+ and Ba2+ cation metals from dilute aqueous solutions using lariat ethers with a novel protonionizable group in the presence of foaming agent. The influence of concentration of Li+, Na+, K+ (as source of foreign cations) on kinetic rate constant and maximal percent removal was studied. The addition of Li+, Na+, K+ cations (over 1.0ź10-3 mol/dm3) depressed the removal of Cs+, Sr2+ and Ba2+ remarkably, and the removal of floated cations was very low (at the concentration of alkali metal cations – 1.0ź10-2 mol/dm3). The influence of foreign cations on flotation depression increases in the order: K+ < Li+ < Na+. Authors propose the correlation between the maximal percent removal of Cs+, Sr2+ or Ba2+ and concentration of Li+, Na+ or K+ cations in aqueous solution.

Słowa kluczowe

EN

ion flotation; crown ethers; cesium(I); barium(II)

• Wydawca: Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Bydgoszcz
• Czasopismo: Ars Separatoria Acta
• Rocznik: 2008
• Tom: No. 6
• Strony: 53--60
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Ulewicz M.

autor

Maciejewski P.

• Department of Metal Extraction and Recirculation, Częstochowa University of Technology, 42-200 Częstochowa, Armii Krajowej 19, Poland,

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