Paper Title:
Preparation of α-Alumina from Coal Fly Ash by Sintering with Sulfuric Acid
  Abstract

A technology was studied to prepare -alumina from fly ash, and the integrated process flow including sintering with sulfuric acid, leaching, recrystallization, calcination was established in this paper. The influences including the particle size of fly ash, sintering temperature, sintering time and the mass ratio of sulfuric acid to fly ash on the extraction ratio of alumina were investigated and discussed during sintering process, and the optimal parameters were determined. The product of -alumina was examined by chemical analysis, XRD and SEM, and the results show that α-alumina reach the national standards.

  Info
Periodical
Advanced Materials Research (Volumes 113-116)
Edited by
Zhenyu Du and X.B Sun
Pages
2039-2044
DOI
10.4028/www.scientific.net/AMR.113-116.2039
Citation
W. N. Mu, Y. C. Zhai, "Preparation of α-Alumina from Coal Fly Ash by Sintering with Sulfuric Acid", Advanced Materials Research, Vols. 113-116, pp. 2039-2044, 2010
Online since
June 2010
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Price
$32.00
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