Mechanism and Kinetics Study of Sintering Process for Alumina Recovery from Fly Ash

Abstract:

In this paper, the de-silicated fly ash (DSFA) was sintered with soda and calcium oxide. Detailed analysis and characterization was carried out by using thermal gravimetric analysis (TGA) and X-ray diffraction (XRD). Two dominant reactions take place in the sintering process. The kinetics was studied by using Jander mode, and the sintering activation energies were determined based on the weight loss of CO_2.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 2824-2830
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.2824
• Online since: June 2014
• Authors: Yong Feng Xiao*, Bao Dong Wang, Xiao Ting Liu, Xiao Huan Wang, Li Jun Zhao, Geng Zhi Yu, Qi Sun
• Keywords: High-Alumina Fly Ash, Jander Model, Kinetic, Sintering Process

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