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Properties of Forsterite-Spinel Composite Prepared from Copper Smelting Slag Tailings
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Bingrong Li1, Yang Gao1, Quanyong Wang1, Yongqiang Zhu2, Jin Yu1, Yu Tu1, Wei Zhang1, Yunlong Sun1
Copper Engineering | 2026, (4) : 34 - 40
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Copper Engineering | 2026, (4): 34-40
• Special Topic: Utilization of Mining and Metallurgical Solid Waste and Pollution Control •
Properties of Forsterite-Spinel Composite Prepared from Copper Smelting Slag Tailings
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Bingrong Li1, Yang Gao1, Quanyong Wang1, Yongqiang Zhu2, Jin Yu1, Yu Tu1, Wei Zhang1, Yunlong Sun1
Affiliations
  • 1.Jiangxi Copper Technology Institute Co.，Ltd.，Nanchang 330096，China
  • 2.Guixi Smelter，Jiangxi Copper Company Limited，Guixi 335424，China
Published: 2026-08-28 doi: 10.3969/j.issn.1009-3842.2026.04.004
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Copper smelting slag tailings are solid wastes obtained from flotation depletion of copper slag generated in pyrometallurgical copper smelting. Their massive accumulation produces serious environmental and safety hazards. Forsterite-spinel composite materials were prepared by a high-temperature solid-state sintering method using copper smelting slag tailings as the main raw material, with addition of light-burned magnesia and activated alumina. Effects of sintering temperature on phase composition, microstructure, and physical properties of the materials were systematically investigated. Results showed that the main crystalline phases of sintered samples were forsterite and spinel, while fayalite phase was completely decomposed. As sintering temperature increased, grains of forsterite and spinel gradually grew, and densification degree of the material continuously improved. When sintering temperature was 1 400 ℃, the sample exhibited the best comprehensive performance, with a bulk density of 2.75 g/cm3, an apparent porosity of 24.11%, and a cold compressive strength of 138.5 MPa.

copper smelting slag tailings  /  forsterite  /  spinel  /  sintering temperature  /  solid waste resourcezation
Bingrong Li, Yang Gao, Quanyong Wang, Yongqiang Zhu, Jin Yu, Yu Tu, Wei Zhang, Yunlong Sun. Properties of Forsterite-Spinel Composite Prepared from Copper Smelting Slag Tailings[J]. Copper Engineering, 2026 , (4) : 34 -40 . DOI: 10.3969/j.issn.1009-3842.2026.04.004
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Year 2026 volume Issue 4
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Article Info
doi: 10.3969/j.issn.1009-3842.2026.04.004
  • Receive Date：2026-05-25
  • Online Date：2026-09-08
  • Published：2026-08-28
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  • Received：2026-05-25
  • Revised：2026-06-26
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Affiliations
    1.Jiangxi Copper Technology Institute Co.，Ltd.，Nanchang 330096，China
    2.Guixi Smelter，Jiangxi Copper Company Limited，Guixi 335424，China
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https://castjournals.cast.org.cn/joweb/tygc/EN/10.3969/j.issn.1009-3842.2026.04.004
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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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