A Study on the Utilization of Magnetite for the Recovery of Platinum Group Metals from Chloride Solution

Peet HomchuenDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan

Richard Diaz AlorroDepartment of Mining Engineering and Metallurgical Engineering, Western Australian School of Mines, Faculty of Science and Engineering, Curtin University, Kalgoorlie, WA, AustraliaCorrespondence[email protected]

Naoki HiroyoshiDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan

Ryo SatoDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan

Hajime KijitaniDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan

Mayumi ItoDivision of Sustainable Resources Engineering, Graduate School of Engineering, Hokkaido University, Sapporo, Japan

ABSTRACT

The recovery of platinum group metals (PGMs) from chloride solution using magnetite was investigated. The adsorption of platinum, palladium, and rhodium in chloride medium onto synthetic magnetite powders were studied at different pH conditions, contact time, sodium chloride concentrations, and initial Pt, Rh, and Pd concentrations. Platinum and palladium uptake by magnetite was at a maximum at pH 6–7, and pH 3–4 for rhodium after 24 h with 0.1 mol/dm³ sodium chloride at an initial PGM concentration of 0.05 mol/m³. A sorption mechanism for PGMs was discussed based on the results.

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A Study on the Utilization of Magnetite for the Recovery of Platinum Group Metals from Chloride Solution

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A Study on the Utilization of Magnetite for the Recovery of Platinum Group Metals from Chloride Solution

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