Leaching behaviour of slag and fly ash from laterite nickel ore smelting (Niquelândia, Brazil)
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- 作者：Vojtěch Ettlera ; ettler@natur.cuni.cz" class="auth_mail" title="E-mail the corresponding author ; Jindřich Kvapila ; Ondřej &Scaron ; ebekb ; Zdenek Johanc ; Martin Mihaljeviča ; Gildas Ratié ; d ; e ; Jé ; ré ; mie Garniere ; Cé ; cile Quantind
- 关键词：Laterite ore nickel smelting ; Slag ; Fly ash ; Mineralogy ; Leaching ; Brazil
- 刊名：Applied Geochemistry
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：64
- 期：Complete
- 页码：118-127
- 全文大小：1637 K
文摘
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Smelting of laterite Ni ores in Goiás state (Brazil) produces slag and fly ash.
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Fly ash contains higher concentrations of contaminants (Ni, Co, Cr) than slag.
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Possible reuse of slag in civil engineering due to low contaminant leaching.
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Ni leaching from fly ash exceeds more than 100x the limit for hazardous waste.
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Direct fly ash recycling in the smelter is preferable to fly ash storage in ponds.