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Effect of Fe/SiO2 Ratio on Slag Structure and Separation Characteristic of Slag and Low Nickel Matte
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Guohua WANG1, Yaru CUI1, Ruimeng SHI1, Chaofei LV2, 3, Xiaoming LI1, Junxue ZHAO1, Shufeng Yang4
Journal of the Chinese Ceramic Society | 2022, 50(10) : 2676 - 2683
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Journal of the Chinese Ceramic Society | 2022, 50(10): 2676-2683
• Research Articles •
Effect of Fe/SiO2 Ratio on Slag Structure and Separation Characteristic of Slag and Low Nickel Matte
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Guohua WANG1, Yaru CUI1, Ruimeng SHI1, Chaofei LV2, 3, Xiaoming LI1, Junxue ZHAO1, Shufeng Yang4
Affiliations
  • 1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • 2.SDIC Jincheng Metallurgy Co. Ltd., Lingbao 472500, Henan China
  • 3.Refractory Gold Concentrate Smelting Engineering Technology Research Center of Henan, Lingbao 472500, Henan China
  • 4.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

    • WANG Guohua (1993-), male, Doctoral candidate. E-mail:

About Author:

WANG Guohua (1993-), male, Doctoral candidate. E-mail:

Published: 2022-10-20 doi: 10.14062/j.issn.0454-5648.20220398
Outline
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To investigate the problems of high loss of nickel metal in slag for nickel flash smelting, the mechanism of Fe/SiO2 ratio(mass ratio of Fe element to silica, hereinafter referred to as Fe/SiO2 ratio) on the separation characteristics of matte and slag was analyzed based on the bridge oxygen structure, FeO activity and valence change law of Fe in molten slag. The results show that the activity of FeO and the contents of Fe2+ and Fe3+ in nickel slag increase with increasing the addition of Fe/SiO2 ratio from 1.1 to 1.5. The increased Fe2+, Fe3+ and O2- promote the dissociation of complex silicate ion groups. The contents of Q1 and Q2 in silicate are reduced from 32.54% and 50.25% to 23.84% and 38.81%, respectively, while the content of Q0 is increased from 17.21% to 37.33%. The main structure of nickel slag is gradually transformed from a complex silicate structure to a Fe3+ connected SiO44- tetrahedron structure. The mass distribution ratio of Ni in matte and slag reaches the maximum value when m(Fe)/m(SiO2) = 1.2, which is greater than that of the original smelting slag under the same condition.

slag regulation  /  mass ratio of Fe element to SiO2  /  bridge oxygen structure  /  polymerization degree  /  slag-matte separation  /  nickel migration
王国华, 崔雅茹, 施瑞盟, 吕超飞, 李小明, 赵俊学, 杨树峰. Fe/SiO2比对渣结构及渣-锍分离特性的影响. 硅酸盐学报, 2022 , 50 (10) : 2676 -2683 . DOI: 10.14062/j.issn.0454-5648.20220398
Guohua WANG, Yaru CUI, Ruimeng SHI, Chaofei LV, Xiaoming LI, Junxue ZHAO, Shufeng Yang. Effect of Fe/SiO2 Ratio on Slag Structure and Separation Characteristic of Slag and Low Nickel Matte[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (10) : 2676 -2683 . DOI: 10.14062/j.issn.0454-5648.20220398
Appendix
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Year 2022 volume 50 Issue 10
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Article Info
doi: 10.14062/j.issn.0454-5648.20220398
  • Receive Date：2022-05-13
  • Online Date：2026-10-20
  • Published：2022-10-20
Article Data
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History
  • Received：2022-05-13
  • Revised：2022-06-12
Funding
Affiliations
    1.School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
    2.SDIC Jincheng Metallurgy Co. Ltd., Lingbao 472500, Henan China
    3.Refractory Gold Concentrate Smelting Engineering Technology Research Center of Henan, Lingbao 472500, Henan China
    4.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China

Corresponding:

CUI Yaru (1970-), female, Ph.D., Professor; E-mail:
SHI Ruimeng (1978-), male, Ph.D., Associate Professor.
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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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