Details

Autor(en) / Beteiligte

• Botelho Junior, Amilton Barbosa
• Vicente, André De Albuquerque
• Espinosa, Denise Crocce Romano
• Tenório, Jorge Alberto Soares

Titel

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

Ist Teil von

• Separation science and technology, 2020-03, Vol.55 (4), p.788-798

Ort / Verlag

Abingdon: Taylor & Francis

Erscheinungsjahr

2020

Quelle

Taylor & Francis Journals Auto-Holdings Collection

Beschreibungen/Notizen

• 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).