Selective flotation of zinc (II) and cadmium (II) ions from dilute aqueous solutions in the presence of halides
 
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1
Technical University of Częstochowa
 
2
Wrocław University of Technology
 
3
Pedagogical University of Czestochowa
 
 
Publication date: 2001-01-01
 
 
Corresponding author
Władysław Walkowiak   

Institute of Inorganic Chemistry and Metallurgy of Rare Elements, Wrocław University of Technology, 50-370 Wrocław, Wybrzeże Wyspiańskiego 27 Street
 
 
Physicochem. Probl. Miner. Process. 2001;35(1):21-29
 
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ABSTRACT
An experimental investigation is presented of the batch ion flotation of zinc(II) and cadmium(II) ions from dilute aqueous solutions with sodium dodecylbenzenesulfonate (DBSNa) as an anionic surfactant and cetylpyridinium chloride (CPCl) as a cationic surfactant. The effect of halides, i.e. fluorides, chlorides, bromides, and iodides, on the selectivity of cadmium(II) over zinc(II) is established. Separation of Cd(II) and Zn(II) ions by DBSNa is not occurred. The separation of Cd(II)/Zn(II) by CPCl in presence of halides at concentration range of 0.001 M to 1.0 M increases in sequence: F- < Cl- < Br- < I-.
eISSN:2084-4735
ISSN:1643-1049
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