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Surface and Bulk Properties of Alumina Recovered Under Various Conditions from Aluminum Dross Tailings Chemical Waste Versus Bauxite Ore

Published online by Cambridge University Press:  31 January 2011

Ezzat A. El ,
Samih A. Halawy ,
Mohamed A. Mohamed  and
Mohamed I. Zaki
Ezzat A. El
Affiliation:
Aluminium Company of Egypt, Nag-Hammady, Egypt
Samih A. Halawy
Affiliation:
Chemistry Department, Faculty of Science at Qena, South Valley University, Qena 83523, Egypt
Mohamed A. Mohamed*
Affiliation:
Chemistry Department, Faculty of Science at Qena, South Valley University, Qena 83523, Egypt
Mohamed I. Zaki
Affiliation:
Chemistry Department, Faculty of Science, Minia University, El-Minia 61519, Egypt
*
a)Address all correspondence to this author.
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Abstract

Bauxite ore (industrial raw material) and aluminum dross tailings (a local industrial waste material of the Aluminium Company of Egypt, Egyptalum) were used as two different parent materials to produce alumina. A set of six different preparation methods was applied to aluminum extracts from both materials. X-ray powder diffractometry, thermal and chemical analyses, and surface area and charge measurements were used to characterize the alumina products. The results indicate that catalytic grade, high-purity alumina products of uniform particle sizes could be obtained in large yields, depending solely on the preparation method applied, i.e., irrespective of the raw material used. Thus, aluminum dross tailings chemical waste is proved to be a feasible parent material for specialty alumina, which is an important finding both economically and environmentally.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 7 , July 2002 , pp. 1721 - 1728
Copyright
Copyright © Materials Research Society 2002

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