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2010 | 12 | 3 | 24-28
Article title

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

Content
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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.
Publisher

Year
Volume
12
Issue
3
Pages
24-28
Physical description
Dates
published
1 - 1 - 2010
online
27 - 9 - 2010
Contributors
author
  • Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland
  • Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland
  • Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland
  • Institute of Chemical Engineering and Technology, Poznan University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10026-010-0028-8
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