| A review of the synthesis and application of zeolites from coal-based solid wastes |
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| 作者姓名： | Xiaoyu Zhang Chunquan Li Shuilin Zheng Yonghao Di Zhiming Sun |
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| 作者单位： | School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China |
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| 基金项目： | This work was financially supported by the National Key R&D Program of China(Nos.2020YFC1806504 and 2019YFC1904903);the Yue Qi Young Scholar Project,China University of Mining&Technology(Beijing)(No.2017QN12). |
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| 摘 要： | 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 introduced.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 addition,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.
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| 关 键 词： | coal-based solid waste coal fly ash coal gangue ZEOLITE |
A review of the synthesis and application of zeolites from coal-based solid wastes |
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| 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].International Journal of Minerals,Metallurgy and Materials,2022,1(1):1-21. |
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| Authors: | Zhang Xiaoyu Li Chunquan Zheng Shuilin Di Yonghao Sun Zhiming |
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| Abstract: | 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 introduced. 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 addition, 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. |
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| Keywords: | coal-based solid waste coal fly ash coal gangue zeolite |
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