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2018 | OriginalPaper | Buchkapitel

Roasting Pretreatment-Low Temperature Digestion Method for Comprehensive Utilization of High-Sulfur Bauxite

verfasst von : Dong Lu, Guozhi Lyu, Ting-an Zhang, Weiguang Zhang, Dong Xie, Yanxiu Wang, Long Wang

Erschienen in: Light Metals 2018

Verlag: Springer International Publishing

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Abstract

The Roasting Pretreatment-Low temperature Digestion Method developed by the Northeastern University is presented in this paper, aiming for the comprehensive utilization of high-sulfur bauxite. Experimental results show that pre-roasting of the bauxite in a fluidized bed can effectively remove pyrite sulfur, and that the removal is increased with the increase of roasting temperature and roasting time. When the roasting temperature is 850 °C, the roasting time is 10 min the sulfur content in the bauxite can be reduced to below 0.2%. The digestion performance of the roasted ore was better than for the raw ore. This indicates that a low energy consumption production process with high-sulfur bauxite can be achieved by this method.

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Metadaten
Titel
Roasting Pretreatment-Low Temperature Digestion Method for Comprehensive Utilization of High-Sulfur Bauxite
verfasst von
Dong Lu
Guozhi Lyu
Ting-an Zhang
Weiguang Zhang
Dong Xie
Yanxiu Wang
Long Wang
Copyright-Jahr
2018
Verlag
Springer International Publishing
DOI
https://doi.org/10.1007/978-3-319-72284-9_1

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