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投稿时间：2017-06-18 修订日期：2017-06-21 录用日期：2017-06-26 网络发布日期：2017-11-22
投稿时间：2017-06-18 修订日期：2017-06-21 录用日期：2017-06-26 网络发布日期：2017-11-22
中文摘要: 粉煤灰煅烧后，加入Ca(OH)2、Na2SO4水热化合改性，考察工艺条件对粉煤灰改性效果的影响，利用扫描电镜对粉煤灰的表面特征进行分析。结果表明，在下述最佳改性工艺条件下的比表面积最大为64.88 m2/g：温度85 ℃、反应时间10 h、Na2SO4/Ca(OH)2质量比0.5︰1、液固比12︰1。改性后粉煤灰对SO2的吸附量为改性前的10.5倍。
Abstract:Fly ash was hydrothermally modified by adding Ca(OH)2 and Na2SO4 after calcinations. Surface characteristics of fly ash were analyzed by SEM. The results show that specific surface area of fly ash is 64.88 m2/g under the optimum conditions including temperature of 85 ℃, reaction time of 10 h, mass ratio of Na2SO4/Ca(OH)2 of 0.5︰1, and L/S of 12︰1. Adsorption capacity of fly ash on SO2 after modification is 10.5-time of that before modification.
keywords: fly ash modification hydrothermal specific surface area SO2
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基金项目:贵州省教育厅项目（黔教合KY字[2014]222号）；贵州省科技厅、贵州大学2014联合资金项目（黔科合LH字[2014]7647号）
| Author Name | Affiliation | |
| lihuiying | Guizhou University | 1768170389@qq.com |
| LI Shui-e | ||
| CUI Tong-ming |
引用文本：
李慧赢,李水娥,崔同明.粉煤灰改性及其吸附SO2性能研究[J].有色金属（冶炼部分）,2017(12):63-66.
lihuiying,LI Shui-e,CUI Tong-ming.Study on Modification of Fly Ash and Its Adsorption Performance on SO2[J].Nonferrous Metals (Extractive Metallurgy),2017(12):63-66.
李慧赢,李水娥,崔同明.粉煤灰改性及其吸附SO2性能研究[J].有色金属（冶炼部分）,2017(12):63-66.
lihuiying,LI Shui-e,CUI Tong-ming.Study on Modification of Fly Ash and Its Adsorption Performance on SO2[J].Nonferrous Metals (Extractive Metallurgy),2017(12):63-66.
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