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Research Progress on Extraction of Valuable Elements from Fly Ash via Calcination Activation-Leaching Technology
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Junjie ZHAO1, Aichun ZHAO1, Xin HE2, Ting’an ZHANG2, Baoren WANG1, Xi CHAO3, Wen ZHANG1, Zeyu LI1
Hydrometallurgy of China | 2026, 45(2) : 152 - 160
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Hydrometallurgy of China | 2026, 45(2): 152-160
• Reviews •
Research Progress on Extraction of Valuable Elements from Fly Ash via Calcination Activation-Leaching Technology
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Junjie ZHAO1, Aichun ZHAO1, Xin HE2, Ting’an ZHANG2, Baoren WANG1, Xi CHAO3, Wen ZHANG1, Zeyu LI1
Affiliations
  • 1.School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan　030024, China
  • 2.Key Laboratory of Ecological Metallurgy of Polymetallic Symbiotic Minerals, Ministry of Education, Northeastern University, Shenyang　110819, China
  • 3.Institute of Resource and Environmental Engineering, Shanxi University, Taiyuan　030000, China
Published: 2026-04-20 doi: 10.13355/j.cnki.sfyj.2026.02.003
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Fly ash, as a large-scale industrial solid waste rich in valuable elements, is a hot topic in the non-ferrous metallurgy industry for recovering aluminum and other elements. Its utilization promotes a more rational allocation of resources and is crucial for improving the overall environmental situation. Firstly, the composition and physical and chemical properties of fly ash are analyzed. Then, the principle of recovering valuable elements from fly ash through roasting activation is expounded. Subsequently, the research progress of extracting aluminum, iron, lithium, gallium, vanadium and other elements from fly ash using the roasting activation-leaching method is systematically summarized. Finally, it is proposed that in the future, the roasting activation process parameters should be further optimized, and green and efficient subsequent separation technologies should be developed to promote the efficient, high-value and sustainable utilization of fly ash.

fly ash  /  roasting activation  /  valuable elements  /  extraction  /  leaching  /  research progress
赵俊杰, 赵爱春, 贺欣, 张廷安, 王保仁, 晁曦, 张玟, 李泽宇. 基于焙烧活化—浸出技术的粉煤灰中有价元素提取研究进展. 湿法冶金, 2026 , 45 (2) : 152 -160 . DOI: 10.13355/j.cnki.sfyj.2026.02.003
Junjie ZHAO, Aichun ZHAO, Xin HE, Ting’an ZHANG, Baoren WANG, Xi CHAO, Wen ZHANG, Zeyu LI. Research Progress on Extraction of Valuable Elements from Fly Ash via Calcination Activation-Leaching Technology[J]. Hydrometallurgy of China, 2026 , 45 (2) : 152 -160 . DOI: 10.13355/j.cnki.sfyj.2026.02.003
Appendix
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Year 2026 volume 45 Issue 2
168
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Article Info
doi: 10.13355/j.cnki.sfyj.2026.02.003
  • Receive Date：2025-11-23
  • Online Date：2026-09-28
  • Published：2026-04-20
Article Data
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History
  • Received：2025-11-23
  • Revised：2026-01-08
Funding
Affiliations
    1.School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan　030024, China
    2.Key Laboratory of Ecological Metallurgy of Polymetallic Symbiotic Minerals, Ministry of Education, Northeastern University, Shenyang　110819, China
    3.Institute of Resource and Environmental Engineering, Shanxi University, Taiyuan　030000, China
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https://castjournals.cast.org.cn/joweb/sfyj/EN/10.13355/j.cnki.sfyj.2026.02.003
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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