Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 81, Issue 1-2, Pages 64-77Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2007.12.002
Keywords
red mud; ferric oxide; catalyst; industrial waste
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Red mud is a by-product of bauxite processing through Bayer process. The amount of red mud generated depends largely on the type of ore used and the processing. Use of red mud as a catalyst can be a good alternative to the existing commercial catalysts. Its properties such as iron content in form of ferric oxide (Fe2O3), high surface area, sintering resistance, resistance to poisoning and low cost make it an attractive potential catalyst for many reactions. Besides red mud, ferric ion sludge from wastewater treatment plant has also been studied for its catalytic properties, mainly due to its ferric oxide constituent. This paper reviews the studies on red mud as a catalyst. The catalyst characteristics, reaction mechanisms involved and performance are examined and compared with iron oxide catalyst and commercial catalysts. (C) 2007 Elsevier B.V. All rights reserved.
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