dc.contributor.author |
Rivera Li Kao, Oscar
|
|
dc.contributor.author |
Garbers-Craig, Andrie Mariana
|
|
dc.date.accessioned |
2025-02-21T07:52:33Z |
|
dc.date.available |
2025-02-21T07:52:33Z |
|
dc.date.issued |
2025 |
|
dc.description.abstract |
This study explored, on a laboratory scale, how matte separates from the gangue in the black top of
a PGM smelter. Two PGM concentrates, one with high sulfide content (17.3 mass%, Platreef concentrate)
and the other with low sulfide content (1.3 mass%, UG-2 concentrate), were studied in the temperature
range of 800°C to 1480°C, which is the temperature gradient across the black top. The results showed that
effective matte separation occurs at temperatures when the matte is completely molten, and
a substantial amount of liquid silicate phase has formed. The main matte separation mechanism is the
coalescence of sulfide prills and their gravitational settling through the continuous path created by the
liquid silicate phase. Complete matte separation occurs at lower temperatures in Platreef concentrate
(1400°C in Platreef concentrate vs. 1480°C in UG-2 concentrate), due to the higher concentration of liquid
silicate phase of lower viscosity, as well as the higher amount of sulfide minerals in this concentrate. PGMs
already dissolve and collect in a nickel-iron-based alloy associated with the matte at temperatures as low
as 900°C. |
en_US |
dc.description.department |
Materials Science and Metallurgical Engineering |
en_US |
dc.description.librarian |
am2024 |
en_US |
dc.description.sdg |
SDG-12:Responsible consumption and production |
en_US |
dc.description.sponsorship |
Anglo American. |
en_US |
dc.description.uri |
http://www.tandfonline.com/journals/gmpr20 |
en_US |
dc.identifier.citation |
Oscar Rivera Li Kao & Andrie Garbers-Craig (23 Jun 2024): Decomposition
of Sulfide Phases and Subsequent Matte Collection in the Black Top of a Platinum
Group Metal Smelter, Mineral Processing and Extractive Metallurgy Review, DOI: 10.1080/08827508.2024.2367414. |
en_US |
dc.identifier.issn |
0882-7508 (print) |
|
dc.identifier.issn |
1547-7401 (online) |
|
dc.identifier.other |
10.1080/08827508.2024.2367414 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/101115 |
|
dc.language.iso |
en |
en_US |
dc.publisher |
Taylor and Francis |
en_US |
dc.rights |
© 2024 The Author(s).
This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License. |
en_US |
dc.subject |
Black top |
en_US |
dc.subject |
Smelting |
en_US |
dc.subject |
Sulfides |
en_US |
dc.subject |
Matte collection |
en_US |
dc.subject |
SDG-12: Responsible consumption and production |
en_US |
dc.subject |
Platinum group metal (PGM) |
en_US |
dc.title |
Decomposition of sulfide phases and subsequent matte collection in the black top of a platinum group metal smelter |
en_US |
dc.type |
Article |
en_US |