Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process

Dmitry Sukhomlinov; Lassi Klemettinen; Katri Avarmaa; Hugh O’Brien; Pekka Taskinen; Ari Jokilaakso

doi:10.1007/s11663-019-01576-2

Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process

Dmitry Sukhomlinov, Lassi Klemettinen, Katri Avarmaa, Hugh O’Brien, Pekka Taskinen^*, Ari Jokilaakso

^*Corresponding author for this work

Geological Survey of Finland

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Abstract

The distribution coefficients of Ni, Co, Ag, Au, Pt, and Pd between molten copper and silica-saturated iron silicate slags (LMeCu/s) were measured experimentally. The distribution behaviors were studied under typical conditions of copper converting and fire refining, i.e., from 1250 °C to 1350 °C, and from 10 ⁻⁸ to 10 ⁻⁴ atm oxygen partial pressure. The coefficients were determined as the ratios of the trace element weight concentrations measured in situ, directly from the equilibrated metal and slag phases. For the quantitative elemental analysis of the phases, state-of-the-art analytic techniques, including electron probe microanalysis and laser ablation-inductively coupled plasma-mass spectrometry, were employed. The distribution coefficients LMeCu/s determined can be arranged in the following order: Pt > Au > Pd >> Ag > (Cu) > Ni > Co > (Fe).

Original language	English
Pages (from-to)	1752-1765
Number of pages	14
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	50
Issue number	4
DOIs	https://doi.org/10.1007/s11663-019-01576-2
Publication status	Published - 15 Aug 2019
MoE publication type	A1 Journal article-refereed

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CHEM-Sukhomlinov et al-2019_Distribution-NiCo-PreciousFinal published version, 1.91 MBLicence: CC BY

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title = "Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process",

abstract = " The distribution coefficients of Ni, Co, Ag, Au, Pt, and Pd between molten copper and silica-saturated iron silicate slags (LMeCu/s) were measured experimentally. The distribution behaviors were studied under typical conditions of copper converting and fire refining, i.e., from 1250 °C to 1350 °C, and from 10 −8 to 10 −4 atm oxygen partial pressure. The coefficients were determined as the ratios of the trace element weight concentrations measured in situ, directly from the equilibrated metal and slag phases. For the quantitative elemental analysis of the phases, state-of-the-art analytic techniques, including electron probe microanalysis and laser ablation-inductively coupled plasma-mass spectrometry, were employed. The distribution coefficients LMeCu/s determined can be arranged in the following order: Pt > Au > Pd >> Ag > (Cu) > Ni > Co > (Fe). ",

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Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process. / Sukhomlinov, Dmitry; Klemettinen, Lassi; Avarmaa, Katri et al.
In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 50, No. 4, 15.08.2019, p. 1752-1765.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process

AU - Sukhomlinov, Dmitry

AU - Klemettinen, Lassi

AU - Avarmaa, Katri

AU - O’Brien, Hugh

AU - Taskinen, Pekka

AU - Jokilaakso, Ari

PY - 2019/8/15

Y1 - 2019/8/15

N2 - The distribution coefficients of Ni, Co, Ag, Au, Pt, and Pd between molten copper and silica-saturated iron silicate slags (LMeCu/s) were measured experimentally. The distribution behaviors were studied under typical conditions of copper converting and fire refining, i.e., from 1250 °C to 1350 °C, and from 10 −8 to 10 −4 atm oxygen partial pressure. The coefficients were determined as the ratios of the trace element weight concentrations measured in situ, directly from the equilibrated metal and slag phases. For the quantitative elemental analysis of the phases, state-of-the-art analytic techniques, including electron probe microanalysis and laser ablation-inductively coupled plasma-mass spectrometry, were employed. The distribution coefficients LMeCu/s determined can be arranged in the following order: Pt > Au > Pd >> Ag > (Cu) > Ni > Co > (Fe).

AB - The distribution coefficients of Ni, Co, Ag, Au, Pt, and Pd between molten copper and silica-saturated iron silicate slags (LMeCu/s) were measured experimentally. The distribution behaviors were studied under typical conditions of copper converting and fire refining, i.e., from 1250 °C to 1350 °C, and from 10 −8 to 10 −4 atm oxygen partial pressure. The coefficients were determined as the ratios of the trace element weight concentrations measured in situ, directly from the equilibrated metal and slag phases. For the quantitative elemental analysis of the phases, state-of-the-art analytic techniques, including electron probe microanalysis and laser ablation-inductively coupled plasma-mass spectrometry, were employed. The distribution coefficients LMeCu/s determined can be arranged in the following order: Pt > Au > Pd >> Ag > (Cu) > Ni > Co > (Fe).

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Distribution of Ni, Co, Precious, and Platinum Group Metals in Copper Making Process

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