Application of D2EHPA for manganese(II) and nickel(II) separation by solvent extraction and polymer inclusion membranes

• Autorzy: Pośpiech B. , Walkowiak W. , Ulewicz M.
• Języki publikacji: EN

Abstrakty

EN

The separation of manganese(II) and nickel(II) from chloride solution with di-(2-ethylhexyl) phosphoric acid (D2EHPA) was studied. The metal ions were separated using solvent extraction and transport through polymer inclusion membranes (PIMs) with D2EHPA as the extractant/ion carrier. The aqueous solutions consisted of 0.010 M manganese(II) and nickel(II) chlorides. The influence of aqueous phase pH on the separation of Mn(II) and Ni(II) has been investigated. Mn(II) can be selectively removed from chloride solution at equilibrium pH equal to 2.90. From the organic phase, Mn(II) was stripped with 0.1-2.0 M aqueous solutions of HCl, H2SO4 and HNO3. The competitive transport of Mn(II) and Ni(II) through PIMs was studied as a function of the ion carrier and plasticizer concentration in the membrane.

Słowa kluczowe

EN

manganese(II); nickel(II); D2EHPA; solvent extraction; polymer inclusion membrane

• Wydawca: Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Bydgoszcz
• Czasopismo: Ars Separatoria Acta
• Rocznik: 2004
• Tom: No. 3
• Strony: 72--80
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Pośpiech B.

• Department of Chemistry, Częstochowa University of Technology, 42-200 Częstochowa, Armii Krajowej 19, Poland

autor

Walkowiak W.

• Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Wrocław University of Technology, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27, Poland

autor

Ulewicz M.

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

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