烧结法提取粉煤灰中氧化铝的新进展

The New Advances in Extraction of Alumina from Fly Ash by Sintering Process

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的不同方式对提取粉煤灰中氧化铝的技术进行了分类,然后总结国内近十年来在烧结法提取粉煤灰中氧化铝方面取得研究新进展,并简要地评述了不同烧结法提取氧化铝工艺的优缺点,并展望了今后烧结法提取粉煤灰中氧化铝的研究方向。

The physicochemical properties and mineral composition of fly ash were introduced, the domestic technologies extracting alumina from fly ash by sintering process were classified by the different mode breaking SiO2 - Al2O3 bond and activating Al2O3, and the domestic new achievement in this aspect were summarized in the last decade and the advantages and disadvantages of the technologies briefly reviewed. The research orientation extracting alumina from fly ash by sintering process was prospected.