高铝粉煤灰提取氧化铝技术的研究现状

Research Status of Extraction of Alumina from High-aluminum Fly Ash

从高铝粉煤灰中提取氧化铝的综合利用可以降低我国对铝资源进口依存度,有效的减少粉煤灰对环境的污染,对我国的可持续发展具有一定的现实意义。本文从高铝粉煤灰的排放及利用出发,通过研究高铝粉煤灰的特点,综述了从高铝粉煤灰中提取氧化铝的三种技术,并分析各个技术的优缺点,最后展望从高铝粉煤灰提取氧化铝技术的发展前景。

The comprehensive utilization of alumina extracted from high-alumina fly ash can reduce the dependence on imports of aluminum resources for China,effectively reduce the environmental pollution caused by fly ash,and has certain practical significance for the sustainable development in China.Starting from the discharge and utilization of high-alumina fly ash,this paper summarizes three technologies for extracting alumina from high-alumina fly ash by studying the characteristics of high-alumina fly ash,analyzes the advantages and disadvantages of each technology,and finally looks forward to the development prospect of the technology for extracting alumina from high-alumina fly ash.