| 粉煤灰在氧化钙中烧结的热力学分析 |
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| 引用本文： | 张凤霞,杨斌,孙淑红,马明煜,黄卉. 粉煤灰在氧化钙中烧结的热力学分析[J]. 工业加热, 2014, 0(1): 10-12,31 |
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| 作者姓名： | 张凤霞 杨斌 孙淑红 马明煜 黄卉 |
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| 作者单位： | 昆明理工大学真空冶金国家工程实验室;昆明理工大学冶金与能源工程学院;昆明冶金高等专科学校冶金材料学院; |
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| 基金项目： | 云南省应用基础研究项目(2013FZ104);云南省教育厅科学研究基金(2010Y473) |
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| 摘 要： | 燃煤电厂产生大量的粉煤灰,如何经济有效地利用粉煤灰是具有重要意义的.粉煤灰中含有大量的石英和莫来石,可用于制备氧化铝、白炭黑,合成沸石等.粉煤灰中难溶成分石英和莫来石的活化是非常重要的.为了分析粉煤灰与烧结剂氧化钙烧结过程中主要化合物可能发生的各种反应,通过理论计算,得到各个反应的吉布斯自由能和不同粉煤灰与氧化钙配比条件下产物的组成进行了研究,为粉煤灰活化制备高附加值产品提供理论指导.
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| 关 键 词： | 粉煤灰 氧化钙 热力学 莫来石 石英 |
Thermodynamic Analysis on the Sintering Reactions of Coal Fly Ash |
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| ZHANG Fengxia,YANG Bin,SUN Shuhong,MA Mingyu,HUANG Hui. Thermodynamic Analysis on the Sintering Reactions of Coal Fly Ash[J]. Industrial Heating, 2014, 0(1): 10-12,31 |
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| Authors: | ZHANG Fengxia YANG Bin SUN Shuhong MA Mingyu HUANG Hui |
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| Affiliation: | (National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Kunming 650093, China;Faculty of Metallurgy and Energy Egineering, Kunming University of Science and Technology, Kunming 650093, China;Faculty of Metallurgy and Materials, Kunming Metallurgy College, Kunming 650033, China) |
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| Abstract: | With the development of power industry,coal fired power plants produce plentiful fly ashes.The comprehensive utilization of the fly ashes attracted more researchers with great interest.An abundant content of quartz and mullite in fly ashes can be the raw materials for alumina,silica white and zeolite preparation,and so on.And the activation of quartz and mullite is a vital procedure for those preparations.The possible chemistry reactions of coal fly ashes during the roasting process were studied by HSC software package.The Gibbs energy changes of the reactions were calculated,and the equilibrium amount of reaction products at different proportion of coal fly ashes and calcium oxide was obtained.The calculation would provide theoretical guidance for preparation of production with high added value from fly ashes. |
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| Keywords: | coal fly ash calcium oxide thermodynamic mullite quartz |
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