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Introduction: Primary Aluminum–Alumina–Bauxite Read chapter Read first chapter

2022 | OriginalPaper | Chapter

4. Chemical Processing of Bauxite: Alumina and Silica Minerals—Chemistry, Kinetics and Reactor Design

Authors : György (George) Bánvölgyi, Brady Haneman

Published in: Smelter Grade Alumina from Bauxite

Publisher: Springer International Publishing

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Abstract

This Chapter provides an introduction to the Bayer process and how the mineral composition of bauxites affects the process variants and the principal parameters to be selected. The Chapter covers the rational of sizing of principal equipment (such as heat recovery system and reactors) and also of calculating the energy (heat) requirement of the digestion unit operation. Beside the processing behaviour of the main constituents of bauxite such as hydrated alumina and silica minerals, the Chapter covers the impact of other constituents, such as titania, iron compounds, organics, and other impurities. The use of lime in the Bayer process and the chemistry behind that is also discussed.

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previous chapter Physical Bauxite Processing: Crushing and Grinding of Bauxite
next chapter Liquid–Solid Separation: De-Sanding—Flocculation, Sedimentation and Liquor Filtration
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Metadata
Title
Chemical Processing of Bauxite: Alumina and Silica Minerals—Chemistry, Kinetics and Reactor Design
Authors
György (George) Bánvölgyi
Brady Haneman
Copyright Year
2022
Book
Smelter Grade Alumina from Bauxite

Print ISBN: 978-3-030-88585-4

Electronic ISBN: 978-3-030-88586-1

Copyright Year: 2022

DOI
https://doi.org/10.1007/978-3-030-88586-1_4

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