Preparation of M50 Mullite Derived Directly from High-Alumina Fly Ash:A Case Study for the Jungar Power Plant in Inner Mongolia, Northern China
详细信息
- 责任者：Chen Jiangfeng (School of Resources and Environment ; Henan Polytechnic University ; Jiaozuo 454100 ; China) ; Shao Longyi
- 刊名：Journal of Mineralogy and Petrology
- 出版年：2008
- 卷期：28(1)
- 关键词：粉煤灰 ; powdered coal ashes ; 莫来石 ; mullite
- 页码：p.17-20
- 图表：1 illus., 1 table, 1 photo, 10 refs.
- 分类号：1800
- issnNo：ISSN1001-6872
- isbnNo：CN51-1143/TD
摘要
Preparation of mullite derived from coal fly ash is an important research field for value-adding utilization of the fly ash. However, this technique is restricted duo to the high cost resulted from adding a large amount of Al2O3 to the fly ash in order to increase a deficient alumina composition to mullite. In this paper, M50 mullite derived directly from high-alumina fly ash of the Jungar power plant was prepared based on orthogonal test. The physical properties of the mullite samples were determined by Archimedes′ method, and the phase constitutes and microstructures were analyzed by using XRD and SEM. It was showed that these M50 mullites could meet the demand of quality for sintered mullite.
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