Control of Platinum Loss in WEEE Smelting

In spite of significant economic value, the solubilities of the platinum group and precious metals in metallurgical copper smelting slags are not well known. Recent experimental information on iron-free and low-iron silicate melts indicates that the chemical solubility of platinum is very low,

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Published in:JOM (1989) 2020-07, Vol.72 (7), p.2770-2777
Main Authors: Klemettinen, Lassi, Avarmaa, Katri, O’Brien, Hugh, Jokilaakso, Ari, Taskinen, Pekka
Format: Article
Language:English
Subjects:
Alloys
Alumina
Aluminum oxide
Chemistry/Food Science
Copper
Dissolution
Earth Sciences
Engineering
Environment
Equilibrium
Experiments
Gases
Iron and steel making
Metal scrap
Metallurgy
Metals
Partial pressure
Physics
Platinum
Platinum base alloys
Scrap iron
Slag
Smelting
Solubility
Temperature
Thermodynamic Modeling of Sustainable Non-Ferrous Metals Production
Thermodynamic properties
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cited_by cdi_FETCH-LOGICAL-c485t-c427f8b9991a4c396a0bacf40ac4610d755ccb00c1f5eed82918f4a95b37c8463
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container_issue 7
container_start_page 2770
container_title JOM (1989)
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creator Klemettinen, Lassi
Avarmaa, Katri
O’Brien, Hugh
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Taskinen, Pekka
description In spite of significant economic value, the solubilities of the platinum group and precious metals in metallurgical copper smelting slags are not well known. Recent experimental information on iron-free and low-iron silicate melts indicates that the chemical solubility of platinum is very low,
doi_str_mv 10.1007/s11837-019-03960-4
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Recent experimental information on iron-free and low-iron silicate melts indicates that the chemical solubility of platinum is very low, &lt; 1 ppmw (part per million weight). In this study, the concentration of platinum in alumina spinel-saturated iron silicate slags in equilibrium with a solid iron-platinum alloy was measured as a function of oxygen partial pressure at 1300°C. The results were converted to unit activity of platinum by the thermodynamic properties of the iron-platinum alloy formed. This allowed the mechanism of dissolution of platinum in the slag and the forms of platinum species in alumina-rich iron silicate slags in copper scrap smelting and refining conditions to be obtained. 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ispartof JOM (1989), 2020-07, Vol.72 (7), p.2770-2777
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1543-1851
language eng
recordid cdi_proquest_journals_2420727134
source Springer Link
subjects Alloys
Alumina
Aluminum oxide
Chemistry/Food Science
Copper
Dissolution
Earth Sciences
Engineering
Environment
Equilibrium
Experiments
Gases
Iron and steel making
Metal scrap
Metallurgy
Metals
Partial pressure
Physics
Platinum
Platinum base alloys
Scrap iron
Slag
Smelting
Solubility
Temperature
Thermodynamic Modeling of Sustainable Non-Ferrous Metals Production
Thermodynamic properties
title Control of Platinum Loss in WEEE Smelting
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