Zeolite derived from coal-based solid wastes (coal gangue and coal fly ash) can overcome the environmental problems caused by coal-based solid wastes and achieve valuable utilization. In this paper, the physicochemical properties of coal gangue and coal fly ash are intro-duced. The mechanism and application characteristics of the pretreatment processes for zeolite synthesis from coal-based solid wastes are also introduced. The synthesis processes of coal-based solid waste zeolite and their advantages and disadvantages are summarized. Furthermore, the application characteristics of various coal-based solid waste zeolites and their common application fields are illustrated. Finally, we propose an alkaline fusion-assisted supercritical hydrothermal crystallization as an efficient method for synthesizing coal-based solid waste zeolites. In ad-dition, more attention should be given to the recycling of alkaline waste liquid and the application of coal-based solid waste zeolites in the field of volatile organic compound adsorption removal.

School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China

[1]Xiaoyu Zhang;Chunquan Li;Shuilin Zheng;Yonghao Di;Zhiming Sun-.A review of the synthesis and application of zeolites from coal-based solid wastes)[J].矿物冶金与材料学报,2022(01):1-21

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