Fluxing Strategy for Nickel Slags containing Magnesia

Grimsey, Eric; Tran, Ba P

Access Status

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Authors

Grimsey, Eric

Tran, Ba P

Date

2009

Type

Conference Paper

Metadata

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Citation

Grimsey, E.J. and Tran, B.P. 2009. Fluxing Strategy for Nickel Slags containing Magnesia. In: Proceedings of the 48th Conference of Metallurgists: International Symposium on Pyrometallurgy of Nickel and Cobolt 2009, 23-26 Aug 2009, Ontario, Canada.

Source Conference

48th Conference of Metallurgists: International Symposium on Pyrometallurgy of Nickel and Cobolt 2009.

ISBN

1-894475-88-7

Faculty

Faculty of Science and Engineering

School

WASM: Minerals, Energy and Chemical Engineering

URI

http://hdl.handle.net/20.500.11937/81501

Collection

Curtin Research Publications

Abstract

Liquidus temperatures within the FeO-Fe2O3-MgO-CaO-Al2O3-SiO2 system have been assessed using FACTSage software to provide a better understanding of the effects of silica, calcia and alumina fluxes on slag liquidus temperatures for Fe/MgO mass ratios in slag ranging from 4 to 8. Flux combinations for the attainment of an example target liquidus temperature of 1325oC have been calculated and a feed-forward fluxing strategy is suggested for liquidus control in which Fe/MgO and SiO2/MgO mass ratios are coupled with Al2O3/MgO and CaO/MgO mass ratios. These combined ratios directly relate the required tonnes of flux to tonnes of magnesia in concentrate and subsequently in slag.