粉煤灰沸石的合成及其应用进展

Progress in Synthesis and Application of Fly Ash Zeolite

粉煤灰是电厂中煤炭燃烧后产生的主要固体废弃物,对其不恰当的处理会对环境造成一定的危害,因此开展粉煤灰的研究十分必要。利用粉煤灰合成沸石不但能够减轻环保压力同时也能获得高附加值产品,具有较好的市场前景。重点综述水热法合成粉煤灰沸石的研究进展,概述粉煤灰沸石的其他几种合成方法;概述了粉煤灰沸石在污水治理、土壤修复、催化及其他领域的应用情况;简要概述了国内外对粉煤灰沸石规模化生产的基础研究现状,并对其发展趋势进行了展望。

Fly ash is the main solid waste generated from the combustion of coal in power plants.Improper disposal of fly ash will cause certain harm to the environment,so it is necessary to carry out research on it.Using fly ash to synthesize zeolite can not only reduce environmental pressure but also obtain high value-added products,which has a good market prospect.It is focused on the research progress of hydrothermal synthesis of fly ash zeolite,and summarized several other synthetic methods of fly ash zeolite.The application of fly ash zeolite in water treatment,gas separation,catalysis,soil improvement and other fields is overviewed.The basic research status of the industrial production of fly ash zeolite is briefly summarized,and the development trend of the synthetic zeolite of fly ash is prospected.