粉煤灰提取氧化铝方法研究
TF80%X773; 粉煤灰中氧化铝含量一般为17％ ～35％,高则可达40％ ～60％,高铝粉煤灰有潜力成为铝土矿的替代铝资源.粉煤灰提铝技术的开发,对于改善环境、实现资源优化配置具有重要意义,本文对循环流化床粉煤灰和煤粉炉粉煤灰的形成机理进行了探讨,循环流化床粉煤灰的结晶性较差,主要以非晶相为主,存在少量莫来石和氧化铝等结晶相,而煤粉炉粉煤灰结晶性较好,主要结晶相为莫来石和刚玉,以及少量的非晶相SiO2.针对不同种类的粉煤灰,对目前酸法、碱法、硫酸铵法等不同方法提取粉煤灰的工艺进行了比较和探讨....
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| Published in | 矿产综合利用 no. 4; pp. 156 - 162 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
北京低碳清洁能源研究院,北京 102209
2020
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6532 |
| DOI | 10.3969/j.issn.1000-6532.2020.04.027 |
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| Abstract | TF80%X773; 粉煤灰中氧化铝含量一般为17％ ～35％,高则可达40％ ～60％,高铝粉煤灰有潜力成为铝土矿的替代铝资源.粉煤灰提铝技术的开发,对于改善环境、实现资源优化配置具有重要意义,本文对循环流化床粉煤灰和煤粉炉粉煤灰的形成机理进行了探讨,循环流化床粉煤灰的结晶性较差,主要以非晶相为主,存在少量莫来石和氧化铝等结晶相,而煤粉炉粉煤灰结晶性较好,主要结晶相为莫来石和刚玉,以及少量的非晶相SiO2.针对不同种类的粉煤灰,对目前酸法、碱法、硫酸铵法等不同方法提取粉煤灰的工艺进行了比较和探讨. |
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| AbstractList | TF80%X773; 粉煤灰中氧化铝含量一般为17％ ～35％,高则可达40％ ～60％,高铝粉煤灰有潜力成为铝土矿的替代铝资源.粉煤灰提铝技术的开发,对于改善环境、实现资源优化配置具有重要意义,本文对循环流化床粉煤灰和煤粉炉粉煤灰的形成机理进行了探讨,循环流化床粉煤灰的结晶性较差,主要以非晶相为主,存在少量莫来石和氧化铝等结晶相,而煤粉炉粉煤灰结晶性较好,主要结晶相为莫来石和刚玉,以及少量的非晶相SiO2.针对不同种类的粉煤灰,对目前酸法、碱法、硫酸铵法等不同方法提取粉煤灰的工艺进行了比较和探讨. |
| Author | 肖永丰 |
| AuthorAffiliation | 北京低碳清洁能源研究院,北京 102209 |
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| Author_FL | Xiao Yongfeng |
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| Keywords | 物相组成 粉煤灰 硫酸铵法 盐酸法 氧化铝 硫酸法 |
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