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The nature and impacts of fines in smelter-grade alumina

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
  • Linus M. Perander
  • Zoran D. Zujovic
  • Thomas F. Kemp
  • Mark E. Smith
  • James B. Metson
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<mark>Journal publication date</mark>1/11/2009
<mark>Journal</mark>JOM Journal of the Minerals, Metals and Materials Society
Issue number11
Volume61
Number of pages7
Pages (from-to)33-39
Publication StatusPublished
<mark>Original language</mark>English

Abstract

Fines in smelter-grade aluminas are recognized as a significant process problem in aluminum smelting. However understanding the nature of this fine material and how it impacts the reduction process arc, less clearly understood The combination of new analytical methods such as variable pressure scanning electron microscopy and very; high field solid state nuclear magnetic resonance provide new insights into the phases present and their spatial distribution within aluminas, and suggest how such fine materials are generated, particularly during calcination in the alumina refinery.