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Application of Eutectic Freeze Crystallization in the Recycling of Li-Ion Batteries Read chapter Read first chapter

2021 | OriginalPaper | Chapter

Preparation of Industrial Sodium Chromate Compound from an Indigenous Chromite Ore by Oxidative Decomposition

Authors : Alafara A. Baba, Kuranga I. Ayinla, Bankim Ch. Tripathy, Abdullah S. Ibrahim, Girigisu Sadisu, Daud T. Olaoluwa, Mustapha A. Raji

Published in: Rare Metal Technology 2021

Publisher: Springer International Publishing

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Abstract

Pure chromate is an important raw material used extensively in chemical and metallurgical operations. Considering these uses, the oxidizing roasting process of an indigenous chromite ore to prepare industrial sodium chromate was investigated in this study. The effects of sodium carbonate to chromite mole ratio, reaction temperature, contact time and its thermodynamics-cum-kinetics behaviour were also discussed. The results showed that the reaction mechanism was greatly influenced as the temperature varies. A two-stage recovery process was found favorable for the conversion method and chromate conversion rate of 97.06% with minimal residual pollutants was achieved at optimal conditions. The residual products containing iron as characterized could be easily recovered to produce sponge iron, leading to complete detoxification and zero emission of chromium residue for defined industrial applications.

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Metadata
Title
Preparation of Industrial Sodium Chromate Compound from an Indigenous Chromite Ore by Oxidative Decomposition
Authors
Alafara A. Baba
Kuranga I. Ayinla
Bankim Ch. Tripathy
Abdullah S. Ibrahim
Girigisu Sadisu
Daud T. Olaoluwa
Mustapha A. Raji
Copyright Year
2021
Book
Rare Metal Technology 2021

Print ISBN: 978-3-030-65488-7

Electronic ISBN: 978-3-030-65489-4

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-65489-4_24

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