|
|||||
|
|
| 矿化剂对铝酸钙粉的结构与光谱性能的影响 | |
| 引用本文： | 郑怀礼,刘君玉,李林涛,李方.矿化剂对铝酸钙粉的结构与光谱性能的影响[J].光谱学与光谱分析,2009,29(11):3028-3032. |
| 作者姓名： | 郑怀礼 刘君玉 李林涛 李方 |
| 作者单位： | 1. 重庆大学三峡库区生态环境教育部重点实验室,重庆,400045 2. 重庆大学化学化工学院,重庆,400044 3. 四川大学化学学院,四川,成都,610064 |
| 基金项目： | 国家自然科学基金项目，重庆市自然科学基金重点项目，重庆大学三峡库区生态环境教育部重点实验室访问学者基金 |
| 摘 要： | 研究了矿化剂对制备铝酸钙粉的结构与性能的影响.研究中以铝矾土和石灰石为原料,加入一定量的矿化剂,混合均匀,经高温煅烧制得铝酸钙粉.借助于红外光谱、X射线粉末衍射、差热-热重分析等手段对不同原料的铝酸钙粉的结构、组成及性能进行了表征和研究,并对矿化剂在合成铝酸钙中的矿化机理进行探讨.研究表明:加入矿化剂后,可在更低温度条件下煅烧制备出铝酸钙粉,有利于节能减排.红外光谱分析、XRD分析、DTA-TG分析显示:未加矿化剂煅烧时,生成的产物主要是Ca3Al10O18,CaAl2Si2O8.加入矿化剂后煅烧生成的产物主要是易浸出Al2O3的CaAl3BO7和Ca3Al10O18,而不易浸出Al2O3的CaAl2Si2O8的含量大大降低.同时显示,加入矿化剂后,原料中的方解石(CaCO3)分解更容易;CaCO3与铝矾土反应更充分;更有利于促使铝矾土中的Al-Si键断裂,将铝矾土中的Al释放出来;并可降低铝酸钙的煅烧温度.研究还显示:加入矿化剂后,可以改变原产物的晶体结构与成分,有利于降低煅烧反应温度. |
| 关 键 词： | 铝酸钙粉结构 矿化剂 光谱性能 矿化机理 |
| 收稿时间： | 2008/11/8 |
Study on the Influence of Mineralizer on the Structures and Spectral Properties of Calcium Aluminates |
|
| ZHENG Huai-li,LIU Jun-yu,LI Lin-tao,LI Fang. Key Laboratory of the Three Gorges Reservoir Region''s Eco-Environment,Ministry of Education,Chongqing University,Chongqing ,China. College of Chemistry , Chemical Engineering,Chongqing ,China. College of Chemistry,Sichuan University,Chengdu ,China.Study on the Influence of Mineralizer on the Structures and Spectral Properties of Calcium Aluminates[J].Spectroscopy and Spectral Analysis,2009,29(11):3028-3032. | |
| Authors: | ZHENG Huai-li LIU Jun-yu LI Lin-tao LI Fang Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment Ministry of Education Chongqing University Chongqing China College of Chemistry Chemical Engineering Chongqing China College of Chemistry Sichuan University Chengdu China |
| Institution: | ZHENG Huai-li1,LIU Jun-yu2,LI Lin-tao2,LI Fang31. Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment,Ministry of Education,Chongqing University,Chongqing 400045,China2. College of Chemistry and Chemical Engineering,Chongqing 400044,China3. College of Chemistry,Sichuan University,Chengdu 610064,China |
| Abstract: | The present paper investigated the effect of mineralizer on the structure and properties of calcium aluminates formation. Calcium aluminates powder was synthesized under high temperature calcination by mixing bauxite,limestone and a certain amount of mineralizer. The product structure,compositional information and spectral properties were carefully characterized by XRD,IR and DTA-TG,and the mineralization mechanism of mineralizer was studied during the process of calcium aluminates preparation. The results ... |
| Keywords: | Structure of calcium aluminates Mineralizer Spectra properties Mineralization mechanism |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |