Overview

This book provides a comprehensive review of the production of smelter grade alumina from bauxite ores. It emphasizes the best practices applied in the industry today but seen in a historical context with a view to future challenges and developments. The control of alumina quality is discussed in detail including the effects that alumina quality have on the aluminum smelter process with respect to environmental performance, current efficiency, and metal purity. The discussion of alumina quality will be relevant to people on the smelter side, as this is the interface between refinery and smelter. Emphasis is placed on the major steps of the Bayer Process including: digestion, clarification, precipitation, calcination, and management of water, energy, and bauxite residue. This book is a valuable resource for active, seasoned practitioners and for new engineers entering the industry.

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9783030885885

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The Co-Editors of this book have a slightly different perspective on the recovery of alumina from bauxite. Benny and Fred received their technical training as MS Chemical engineers. Benny Raahauge was employed by FL Schmidt and thus represented a manufacturer and seller of equipment used in that industry. Fred Williams was employed by Alcoa and was assigned management responsibilities in alumina processing research, plant process engineering and running plant production. Both individuals have conceived technical improvements to the alumina recovery process as recognized by patents and technical awards, written and presented numerous papers at international technical meetings and have served as chairmen and organizers of international technical sessions. The authors of the individual chapters in this book are noteworthy experts from around the world in alumina manufacturing and research technology.

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