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Experimental Study on Iron Recovery from Smelting Slag of Fine-Grained Refractory Nickel Laterite Ore
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Zhixin CHEN1, 2, Xiangan PENG1, 2, Bingang LU1, 2, Qiusheng LAI1, Xiangtian FANG1, Jinrong LIANG1
Mining and Metallurgical Engineering | 2025, 45(5) : 88 - 92
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Mining and Metallurgical Engineering | 2025, 45(5): 88-92
MINERAL PROCESSING
Experimental Study on Iron Recovery from Smelting Slag of Fine-Grained Refractory Nickel Laterite Ore
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Zhixin CHEN1, 2, Xiangan PENG1, 2, Bingang LU1, 2, Qiusheng LAI1, Xiangtian FANG1, Jinrong LIANG1
Affiliations
  • 1.State Key Laboratory of Ni & Co Associated Minerals Resources Development and Comprehensive Utilization, Jinchang 737100, Gansu, China
  • 2.Jinchuan Group Research and Development Center, Jinchang 737100, Gansu, China
Published: 2025-10-01 doi: 10.3969/j.issn.0253-6099.2025.05.015
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Based on analysis of chemical composition, mineral composition, main mineral properties and disseminated grain size of slag from smelting of nickel laterite ore, a series of exploratory experiments were carried out. The iron in the slag was recovered by magnetizing roasting and magnetic separation. The magnetizing roasting is performed for 40 min at 750 ℃ with a coal powder at a ratio of 2%. The roasted ore is subjected to a two-stage low-intensity magnetic separation (LIMS) after being ground to a fineness of -0.045 mm 80%, and an iron concentrate grading 60.38% Fe can be obtained at recovery of 71.55%.

magnetizing roasting  /  magnetic separation  /  nickel laterite  /  smelting slag  /  iron concentrate
Zhixin CHEN, Xiangan PENG, Bingang LU, Qiusheng LAI, Xiangtian FANG, Jinrong LIANG. Experimental Study on Iron Recovery from Smelting Slag of Fine-Grained Refractory Nickel Laterite Ore[J]. Mining and Metallurgical Engineering, 2025 , 45 (5) : 88 -92 . DOI: 10.3969/j.issn.0253-6099.2025.05.015
Year 2025 volume 45 Issue 5
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.05.015
  • Receive Date:2025-03-25
  • Online Date:2026-03-18
  • Published:2025-10-01
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  • Received:2025-03-25
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Affiliations
    1.State Key Laboratory of Ni & Co Associated Minerals Resources Development and Comprehensive Utilization, Jinchang 737100, Gansu, China
    2.Jinchuan Group Research and Development Center, Jinchang 737100, Gansu, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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