国内利用粉煤灰提取氧化铝的研究新进展

The New Research Achievements on Domestic Extraction of Alumina from Fly Ash

在简述了粉煤灰的理化性能及矿物组成后,根据破坏粉煤灰中SiO2-Al2O3键及活化Al2O3的不同方式对粉煤灰中提取氧化铝的技术进行了分类,总结了国内近六年来在这方面研究取得的新进展,然后简要地评述了不同氧化铝提取工艺的优缺点,并展望了今后粉煤灰中提取氧化铝的研究方向。

After physicochemical properties and phases of fly ash are introduced, the domestic technologies extracting alumina from fly ash are classified by the different mode breaking SiO2-Al2O3 bond and activating Al2O3, and the domestic new achievement in this aspect are summarized on nearly six years and the advantages and disadvantages of the technologies briefly reviewed, and then the research orientation extracting alumina from fly ash prospected.