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Impacts of Mineralogy on Soluble Phosphorus Concentrations During Low Temperature Processing of Jamaican Bauxites Read chapter Read first chapter

2020 | OriginalPaper | Chapter

Effect of Sodium Alkali Concentration on Calcification–Carbonization Process

Authors : Yang Chen, Ting-an Zhang, Guo-zhi Lv, Xi Chao

Published in: Light Metals 2020

Publisher: Springer International Publishing

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Abstract

The calcification-carbonization method is a recently developed hydrometallurgical treatment process which can effectively realize the scale of Bayer process residue for aluminium and sodium recovery. In order to reduce the water consumption in the process, and increase extraction efficiency of the low alkali concentration solution generated in the process, the effects of varying alkali concentration of the calcification reaction solution and the alkali concentration of the carbonization reaction solution on the calcification carbonization process were investigated. The experimental results showed that at low alkali concentration (Na2O < 50 g/L), the solution had no significant effect on the calcification-carbonization process, as Al2O3 recovery rate fluctuates between 34–37%. As the alkali concentration of the solution increases (Na2O > 50 g/L), the Al2O3 recovery rate decreases to less than 20%.

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Metadata
Title
Effect of Sodium Alkali Concentration on Calcification–Carbonization Process
Authors
Yang Chen
Ting-an Zhang
Guo-zhi Lv
Xi Chao
Copyright Year
2020
Book
Light Metals 2020

Print ISBN: 978-3-030-36407-6

Electronic ISBN: 978-3-030-36408-3

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-3-030-36408-3_20

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