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Experimental studies were carried out for iron recovery from the leaching residue of lateritic nickel ore containing 51.38% TFe and 2.01% S, by adopting processing techniques of centrifugal separation, magnetic separation and magnetic roasting. It is found that the process of magnetic roasting followed by magnetic separation is an efficient technique to recover iron from such leaching slag. It is shown that the process of coal-based reduction followed by low-intensity magnetic separation (LIMS) can produce the concentrate grading 62.77% TFe at 94.04% recovery, and the process of gas-based reduction followed by LIMS leads to the concentrate grading 68.77% TFe at 95.15% recovery, with sulfur content of 0.12% in the impurity, which can meet the quality standard for iron concentrate. Although the process of direct reduction followed by LIMS can produce the concentrate grading 90.89% TFe at 88.90% recovery, it is shown that there is higher content of sulfur in the concentrate.

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针对某含铁51.38%、含硫2.01%的红土镍矿浸渣进行了离心选矿、磁选、磁化焙烧等试验研究。结果表明,磁化焙烧-磁选工艺是该红土镍矿浸渣选铁的高效分选工艺。煤基还原-弱磁选获得了精矿TFe品位62.77%、回收率94.04%的指标;气基还原-弱磁选获得了精矿TFe品位68.77%、回收率95.15%、精矿中杂质硫含量0.12%的指标,可达到铁精矿质量要求;直接还原-弱磁选可获得精矿TFe品位90.89%、回收率88.90%的指标,但存在精矿中硫含量偏高的问题。

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罗良飞(1971—),男,湖南湘乡人,硕士,正高级工程师,主要从事矿物加工技术开发与工程应用研究工作。

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罗良飞(1971—),男,湖南湘乡人,硕士,正高级工程师,主要从事矿物加工技术开发与工程应用研究工作。

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罗良飞(1971—),男,湖南湘乡人,硕士,正高级工程师,主要从事矿物加工技术开发与工程应用研究工作。

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红土镍矿浸渣选铁试验研究
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罗良飞 , 李宗蔚 , 钟志刚 , 蒋江波
矿冶工程杂志 | 选矿 2023,43(5): 47-49
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矿冶工程杂志 | 选矿 2023, 43(5): 47-49
红土镍矿浸渣选铁试验研究
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罗良飞, 李宗蔚, 钟志刚, 蒋江波
作者信息
  • 长沙矿冶研究院有限责任公司,湖南 长沙 410012
  • 罗良飞(1971—),男,湖南湘乡人,硕士,正高级工程师,主要从事矿物加工技术开发与工程应用研究工作。

Experimental Study on Iron Recovery from Leaching Residue of Lateritic Nickel Ore
Liangfei LUO, Zongwei LI, Zhigang ZHONG, Jiangbo JIANG
Affiliations
  • Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China
出版时间: 2023-10-01 doi: 10.3969/j.issn.0253-6099.2023.05.010
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针对某含铁51.38%、含硫2.01%的红土镍矿浸渣进行了离心选矿、磁选、磁化焙烧等试验研究。结果表明,磁化焙烧-磁选工艺是该红土镍矿浸渣选铁的高效分选工艺。煤基还原-弱磁选获得了精矿TFe品位62.77%、回收率94.04%的指标;气基还原-弱磁选获得了精矿TFe品位68.77%、回收率95.15%、精矿中杂质硫含量0.12%的指标,可达到铁精矿质量要求;直接还原-弱磁选可获得精矿TFe品位90.89%、回收率88.90%的指标,但存在精矿中硫含量偏高的问题。

红土镍矿  /  浸出渣  /  磁选  /  磁化焙烧  /  煤基还原  /  气基还原  /  直接还原  /  离心选矿

Experimental studies were carried out for iron recovery from the leaching residue of lateritic nickel ore containing 51.38% TFe and 2.01% S, by adopting processing techniques of centrifugal separation, magnetic separation and magnetic roasting. It is found that the process of magnetic roasting followed by magnetic separation is an efficient technique to recover iron from such leaching slag. It is shown that the process of coal-based reduction followed by low-intensity magnetic separation (LIMS) can produce the concentrate grading 62.77% TFe at 94.04% recovery, and the process of gas-based reduction followed by LIMS leads to the concentrate grading 68.77% TFe at 95.15% recovery, with sulfur content of 0.12% in the impurity, which can meet the quality standard for iron concentrate. Although the process of direct reduction followed by LIMS can produce the concentrate grading 90.89% TFe at 88.90% recovery, it is shown that there is higher content of sulfur in the concentrate.

lateritic nickel ore  /  leaching residue  /  magnetic separation  /  magnetic roasting  /  coal-based reduction  /  gas-based reduction  /  direct reduction  /  centrifugal separation
罗良飞, 李宗蔚, 钟志刚, 蒋江波. 红土镍矿浸渣选铁试验研究. 矿冶工程杂志, 2023 , 43 (5) : 47 -49 . DOI: 10.3969/j.issn.0253-6099.2023.05.010
Liangfei LUO, Zongwei LI, Zhigang ZHONG, Jiangbo JIANG. Experimental Study on Iron Recovery from Leaching Residue of Lateritic Nickel Ore[J]. Mining and Metallurgical Engineering, 2023 , 43 (5) : 47 -49 . DOI: 10.3969/j.issn.0253-6099.2023.05.010
  • 国家重点研发计划(2021YFC2902504)
2023年第43卷第5期
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doi: 10.3969/j.issn.0253-6099.2023.05.010
  • 接收时间:2023-05-10
  • 首发时间:2026-03-05
  • 出版时间:2023-10-01
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  • 收稿日期:2023-05-10
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国家重点研发计划(2021YFC2902504)
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    长沙矿冶研究院有限责任公司,湖南 长沙 410012
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2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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