Utilization of coal fly ash in the glass-ceramic production

被引：60
作者：
Zhang, Jian
Dong, Wen
Li, Juan
Qiao, Liang
Zheng, Jingwu
Sheng, Jiawei [1 ]
机构：
[1] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China
[2] Zhejiang Univ Technol, Coll Biol Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2007年 / 149卷 / 02期
关键词：
glass-ceramic; coal fly ash; TCLP; chemical resistance;
D O I：
10.1016/j.jhazmat.2007.07.044
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Manufacturing the glass-ceramic has been proposed as a useful choice to recycle coal fly ash from power plants. In this work, a glass-ceramic Of SiO2-Al2O3-Fe2O3-CaO family was synthesized by mixing 90 wt% of coal fly ash, from a power plant in west of China, with Na2O, and then melted at 1350 degrees C. The ceramization of the obtained glass was carried out at 770 degrees C for 2 h. Esseneite and nepheline were found present as major crystal phases. The produced glass-ceramic exhibited good chemical durability as well as good mechanical properties. The toxicity characteristic leaching procedure (TCLP) method found that the glass-ceramic was non-hazardous. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：523 / 526
页数：4
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