Effect of iron oxidation state for copper recovery from nickel laterite leach solution using chelating resin

The goal of this work was to study the effect of iron oxidation state for Cu(II) recovery. Two different solutions of nickel laterite leach were prepared with Fe(III) and with Fe(II) for the experiments. FTIR of the chelating resin were analyzed before and after metals adsorption. Kinetics and therm...

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Published inSeparation science and technology Vol. 55; no. 4; pp. 788 - 798
Main Authors Botelho Junior, Amilton Barbosa, Vicente, André De Albuquerque, Espinosa, Denise Crocce Romano, Tenório, Jorge Alberto Soares
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 03.03.2020
Taylor & Francis Ltd
Subjects
Adsorption
Chelating resins
Chelation
Copper
Experiments
Heavy metals
ion exchange
Iron
isotherms
Kinetics
Laterites
Lewatit TP 207
Metals
Nickel
Oxidation
Reaction kinetics
Recovery
Valence
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Summary:The goal of this work was to study the effect of iron oxidation state for Cu(II) recovery. Two different solutions of nickel laterite leach were prepared with Fe(III) and with Fe(II) for the experiments. FTIR of the chelating resin were analyzed before and after metals adsorption. Kinetics and thermodynamics of metals adsorption were studied in batch. Column experiments were performed to study the effect of iron oxidation state on Cu(II) adsorption. Results indicated that Cu(II) recovery was strongly related to iron oxidation state. Cu(II) adsorption was higher in solution with Fe(II) than with Fe(III). Temperature decreased Cu(II) adsorption. Column experiments showed that Fe(II) reached rapidly the equilibrium during the feeding step, and it was lower adsorbed than Fe(III).
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2019.1574828