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Structural Properties and Performance of Multi-Phase Refractory Materials Prepared from Copper Smelting Slag
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Yang Gao1, Bingrong Li1, Quanyong Wang1, Yongqiang Zhu2, Jin Yu1, Yu Tu1, Wei Zhang1, Yunlong Sun1
Copper Engineering | 2026, (4) : 24 - 33
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Copper Engineering | 2026, (4): 24-33
• Special Topic: Utilization of Mining and Metallurgical Solid Waste and Pollution Control •
Structural Properties and Performance of Multi-Phase Refractory Materials Prepared from Copper Smelting Slag
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Yang Gao1, Bingrong Li1, Quanyong Wang1, Yongqiang Zhu2, Jin Yu1, Yu Tu1, Wei Zhang1, Yunlong Sun1
Affiliations
  • 1.Jiangxi Copper Co.，Ltd.，Nanchang R&D Center，Nanchang 330096，China
  • 2.Guixi Smelter，Jiangxi Copper Co.，Ltd.，Guixi 335400，China
Published: 2026-08-28 doi: 10.3969/j.issn.1009-3842.2026.04.003
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Multi-phase refractory materials were prepared using copper slag tailings and waste high-alumina bricks. Thermodynamic behavior of copper slag tailings during sintering was studied by XRD and TG-MS. Influence of copper slag tailing and waste high-alumina brick content on mechanical properties and high temperature properties of refractory materials were studied. Microstructure and phase transition process of multi-phase refractory materials were studied by SEM-EDS and XRD. Results showed that decomposition product of iron olivine in copper slag tailings reacted in-situ with alumina in waste high-alumina brick, and finally formed a mullite-corundum composite crystal phase combined with Fe-Al intercrystalline phase. When mass fraction of waste high-alumina brick and copper slag tailing was 40% and 10%, respectively, comprehensive performance of refractory material was the best. Compressive strength was 110.4 MPa, refractoriness under load reached 1 399 ℃, and strength retention rate after thermal shock was more than 80%. Research results provided a new prospective for high-value utilization of copper slag tailings and waste high-alumina bricks which are the main solid waste in copper smelting industry.

copper smelting slag  /  refractory material  /  phase transition  /  high-temperature property  /  mechanical property
Yang Gao, Bingrong Li, Quanyong Wang, Yongqiang Zhu, Jin Yu, Yu Tu, Wei Zhang, Yunlong Sun. Structural Properties and Performance of Multi-Phase Refractory Materials Prepared from Copper Smelting Slag[J]. Copper Engineering, 2026 , (4) : 24 -33 . DOI: 10.3969/j.issn.1009-3842.2026.04.003
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Year 2026 volume Issue 4
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Article Info
doi: 10.3969/j.issn.1009-3842.2026.04.003
  • Receive Date：2026-05-20
  • Online Date：2026-09-08
  • Published：2026-08-28
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History
  • Received：2026-05-20
  • Revised：2026-06-17
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Affiliations
    1.Jiangxi Copper Co.，Ltd.，Nanchang R&D Center，Nanchang 330096，China
    2.Guixi Smelter，Jiangxi Copper Co.，Ltd.，Guixi 335400，China
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https://castjournals.cast.org.cn/joweb/tygc/EN/10.3969/j.issn.1009-3842.2026.04.003
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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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