粉煤灰回收氧化铝工艺研究进展

Abstract

Abstract: Coal fly ash，an industrial byproduct，is from coal combustion in fuel electric plant.It is the main source of solid waste.Meanwhile，it is a potential substitute for monohydrallite due to its high aluminum content.Extracting alumina from coal fly ash can reduce the pollution of the environmental caused by coal fly ash and relieve the shortage of monohydrallite resources.The necessity of extracting alumina from coal fly ash has been proven by summarizing the properties and danger of coal fly ash，status of bauxite resources，and utilization status of coal fly ash.Some extraction methods including limestone sintering method，ammonium sulfate sintering method，one-step acid digestion method as well as the merits and defects of their technology process and production condition were discussed specifically.The prospects for recovery of alumina from coal fly ash and correlated recommendations were also presented for the further study on comprehensive utilization of coal fly ash.

Key words: coal fly ash, alumina, monohydrallite, comprehensive utilization

WAN Ya-Meng, WANG Bao-Qing, WANG Dan, REN Bao-Zeng. Research progress of alumina recovery technology from coal fly ash[J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(11): 7-.

[1]	ZHANG Yanyan, LI Donghong, LIU Yonghe, ZHANG Yang, KANG Le, WANG Yi. Study on surface treatment of alumina filler [J]. Inorganic Chemicals Industry, 2025, 57(1): 77-82.
[2]	TIAN Peng, ZHANG Haoran, XU Jingang, MOU Chenxi, XU Qianjin, NING Guiling. Study on aluminum sol modified anode and cathode materials for lithium ion batteries [J]. Inorganic Chemicals Industry, 2024, 56(9): 44-53.
[3]	REN Xuechang, FENG Hao. Study on dissolution process of sintered clinker by aluminum ash alkali method with ultrasound irritation [J]. Inorganic Chemicals Industry, 2024, 56(6): 119-126.
[4]	WANG Baoming, WANG Xinglong, YANG Ying, ZHAO Bo, HUA Quanxian, LIU Yong, LIU Pengfei, SHEN Bo, DING Junxiang, TANG Jianwei. Current status and research progress of comprehensive utilization of phosphorus tailings [J]. Inorganic Chemicals Industry, 2024, 56(10): 1-11.
[5]	DENG Hua, HOU Shuomin, LI Zhongjun, XU Gang, CHI Ru′an, XI Benjun. Current situation and prospect of comprehensive utilization of phosphogypsum [J]. Inorganic Chemicals Industry, 2024, 56(1): 1-8.
[6]	WANG Mengdi, LUO Jin, WU Wei, ZHOU Jinghui, WANG Jing, SUN Yanmin, YU Haibin. Study on preparation of γ-Al₂O₃ by microreaction and its properties for methyl orange adsorption [J]. Inorganic Chemicals Industry, 2023, 55(9): 66-74.
[7]	LUO Wenbo, LI Heng, LÜ Jun, YANG Linguang, ZHAO Xingfan, LONG Xiao. Study on recovery of silicon and aluminum from industrial silicon slag [J]. Inorganic Chemicals Industry, 2023, 55(9): 94-99.
[8]	LIU Guanfa, ZENG Chaocong, WANG Zekai, ZENG Xiangrong, HUANG Wanfu. Study on preparation of high strength sintered ceramsite from tungsten smelting slag and its property [J]. Inorganic Chemicals Industry, 2023, 55(8): 132-139.
[9]	KANG Le, JING Maoxiang, LI Donghong, HU Xinyu, JIA Chunyan. Study on preparation and electrochemical performance of lithium aluminate nanorods modified solid electrolyte [J]. Inorganic Chemicals Industry, 2023, 55(8): 65-70.
[10]	PANG Fei, XU Yingrui, CHAI Chunling, SHEN Jingjing, BAI Liguang, ZHAO Xiaodong. Overview on recycling of waste activated alumina in production of hydrogen peroxide by anthraquinone process [J]. Inorganic Chemicals Industry, 2023, 55(6): 1-7.
[11]	JIANG Ziwen,QUAN Xuejun,LI Gang,LU Cunfang,GUO Yijun,CHEN Hao,ZHOU Yankuo,CHENG Zhiliang. Research progress of resource utilization of chromium slag [J]. Inorganic Chemicals Industry, 2023, 55(2): 26-35.
[12]	XU Jingyao,ZHOU Xiaoli,SUN Jinghui,CAO Alin,QING Peilin. Study on preparation of flake α-alumina based on mixed molten salt at low temperature [J]. Inorganic Chemicals Industry, 2023, 55(2): 73-78.
[13]	TIAN Peng, XU Jingang, XU Qianjin, LIU Kunji, PANG Hongchang, NING Guiling. Preparation of nano-alumina slurry and its application in modifying lithium-ion battery cathode material [J]. Inorganic Chemicals Industry, 2023, 55(12): 43-49.
[14]	GUO Xueqin, DENG Xiaochuan, ZHU Chaoliang, FU Xin, WANG Ruirui, MA Wanxia, FAN Jie, ZUO Fangtao, QING Binju. Study on preparation of modified diatomite loaded ammonium phosphomolybdate composite adsorbent and its adsorption performance of Cs⁺ [J]. Inorganic Chemicals Industry, 2023, 55(11): 19-26.
[15]	TIAN Peng, ZHOU Ruohui, XU Qianjin, LIU Kunji, PANG Hongchang, NING Guiling. Synthesis and dehydration dynamics of boehmite microcrystalline with different particle sizes [J]. Inorganic Chemicals Industry, 2023, 55(11): 27-36.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Research progress of alumina recovery technology from coal fly ash

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0