Removal of Zn(II) from chloride acidic solutions with hydrophobic quaternary salts

• Authors: Łukasz Nowak , Magdalena Regel-Rosocka , Barbara Marszałkowska , Maciej Wiśniewski
• Languages of publication: EN

Abstracts

EN

The equilibrium of zinc(II) extraction from hydrochloric acid solutions with phosphonium and ammonium quaternary salts and their application as carriers in polymer inclusion membranes were studied. The most efficient was the extraction of zinc with the use of chlorides and bromide of ammonium and phosphonium salt (more than 90%). Quaternary ammonium and phosphonium chlorides and bromide are efficient extractants of zinc(II) from hydrochloric acid solutions. Two-fold molar excess of extractant over Zn(II) is necessary for efficient extraction (100%). Solvent extraction power of the extractants studied decreases with increasing hydrophobicity of the anion in the following sequence: QPCl > QPBr > QPBis > QACl > QABF4 > QPBF4 > QPPF6 > QPNtf2. A solution of 1 M H2 SO4 is chosen as the best stripping phase from the technological and economical point of view. Transport across polymeric inclusion membrane enables concentration of the stripping solution; however it takes a very long time.

Keywords

EN

Zinc(II)extraction; quaternary salts; polymer inclusion membranes

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2010
• Volume: 12
• Issue: 3
• Pages: 24-28

Dates

published

1 - 1 - 2010

online

27 - 9 - 2010

Contributors

author

Łukasz Nowak

• Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland

author

Magdalena Regel-Rosocka

• Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland

author

Barbara Marszałkowska

• Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland

author

Maciej Wiśniewski

• Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland

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Identifiers

DOI

10.2478/v10026-010-0028-8