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The recovery of Platinum from spent catalysts was examined. Platinum leaching was studied considering particle size, temperature, solid-liquid and HCl/ HNO3 ratio effects. Many elements together with Pt were taken from a mixed spent catalyst sample. The main components of the leach liquor were Pt (1.84 g/ kg cat) and Fe (0.94 g/kg cat). Platinum was separated from the leach aqueous solution by using Tri-Octyl Phosphine Oxide (TOPO) in kerosene. The extraction was studied considering equilibrium time, TOPO and HCl concentration, tin(II) chloride presence and stripping agents. Iron represents the main ion competitor for Pt extraction. Copyright © 2013 Inderscience Enterprises Ltd.

Automotive spent catalysts treatment and platinum recovery

Fontana, D.;Pietrelli, L.
2013-01-01

Abstract

The recovery of Platinum from spent catalysts was examined. Platinum leaching was studied considering particle size, temperature, solid-liquid and HCl/ HNO3 ratio effects. Many elements together with Pt were taken from a mixed spent catalyst sample. The main components of the leach liquor were Pt (1.84 g/ kg cat) and Fe (0.94 g/kg cat). Platinum was separated from the leach aqueous solution by using Tri-Octyl Phosphine Oxide (TOPO) in kerosene. The extraction was studied considering equilibrium time, TOPO and HCl concentration, tin(II) chloride presence and stripping agents. Iron represents the main ion competitor for Pt extraction. Copyright © 2013 Inderscience Enterprises Ltd.
2013
Hydrometallurgy;Leaching;PGM;Solvent extraction;Spent catalysts treatment;Waste management;Platinum recovery;Platinum group metals;Tri-octyl phosphine oxide;TOPO
1.1 Articolo in rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/1262
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