Quaternary phosphonium salts as effective extractants of zinc(II) and iron(III) ions from acidic pickling solutions

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

Abstracts

EN

Extraction of zinc(II) and iron(III) from hydrochloric acid solutions using quaternary phosphonium salts, Cyphos® IL 101, Cyphos® IL 104, Cyphos® IL109 and Cyphos® IL 111 in mixtures with toluene, was studied. Trihexyl(tetradecyl)phosphonium chloride (Cyphos® IL 101) and trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate (Cyphos® IL 104) showed the best zinc(II) and iron(III) extraction abilities. After three stages of zinc(II) extraction with Cyphos® IL 101 and Cyphos® IL 104 the efficiencies were 100 and 93.6%, respectively. Total iron(III) transport to the organic phase was achieved after two separation stages and amounted to 82.1 and 100% for Cyphos® IL 101 and Cyphos® IL 104, respectively. Zinc(II) and iron(III) could be effectively stripped from the loaded organic phases with 0.5 mol dm-3 sulfuric acid. The more hydrophobic the character of the anion type of phosphonium salts, the lower the efficiency of extraction.

Keywords

EN

Solvent extraction; zinc(II); iron(III); quaternary phosphonium salts; hydrochloric acid

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2010
• Volume: 12
• Issue: 4
• Pages: 1-5

Dates

published

1 - 1 - 2010

online

28 - 12 - 2010

Contributors

author

Barbara Marszałkowska

• 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

Łukasz Nowak

• 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/v10026-010-0039-5