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dc.contributor.authorEksteen, Jacques
dc.contributor.authorRitchie S.
dc.date.accessioned2017-01-30T15:11:32Z
dc.date.available2017-01-30T15:11:32Z
dc.date.created2012-02-29T20:00:43Z
dc.date.issued2011
dc.identifier.citationRitchie S. and Eksteen, J. J. 2011. Investigating the effect of slag bath conditions on the existence of multiphase emulsion zones in PGM smelting furnaces using computational fluid dynamics. Minerals Engineering. 24 (7): pp. 661-675.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/44014
dc.identifier.doi10.1016/j.mineng.2010.09.017
dc.description.abstract

The presence of chrome in electric arc furnaces smelting platinum group metals (PGM’s) has a number of potentially negative consequences. In cases where the slag chrome content is above the saturation limit the existence of near-stagnant conditions near the slag/matte interface increases the risk of chromite spinels settling and consolidating into a ‘‘mushy layer’’, a three-phase suspension of slag, chromite and matte. The hold-up of matte above the elevation of the slag/matte interface can lead to the attack of freeze linings and copper cooling elements potentially causing failures of the furnace lining and significant downtimes as well as major safety risks. This paper investigates the relationship between typical furnace operating parameters and the behavior of the slag bath with respect to the formation of the ‘‘mushy’’ layer at the slag/matte interface using computational fluid dynamics (CFD). The extent of the potential ‘‘mushy’’ layer is seen to increase with decreasing electrode immersion and furnace power. Electrode immersion is, however, a considerably stronger driver is this regard. The CFD modelling results have aided in selecting appropriate furnace electrode immersion/power combinations intended to minimize ‘‘mushy’’ layer formation.

dc.publisherElsevier
dc.subjectComputational fluid dynamics
dc.subjectSmelting
dc.subjectFurnace
dc.subjectPyrometallurgy
dc.subjectPGM
dc.titleInvestigating the effect of slag bath conditions on the existence of multiphase emulsion zones in PGM smelting furnaces using computational fluid dynamics
dc.typeJournal Article
dcterms.source.volume24
dcterms.source.number7
dcterms.source.startPage661
dcterms.source.endPage675
dcterms.source.issn0892-6875
dcterms.source.titleMinerals Engineering
curtin.departmentWASM Minerals Engineering and Extractive Metallurgy Teaching Area
curtin.accessStatusFulltext not available


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