INFLUENCE OF MnO ON REDUCTION OF TiO_2 IN BLAST FURNACE TYPE SLAG

Abstract

Abstract: A study was carried out on the formation of Ti(C,N) during smelting vanadium-bearing titanomagnetite in blast furnace and the influence of MnO content on reduction of TiO_2 in the slag containing high titania. The reduction of TiO_2 is restricted by MnOpredominantly at the slag-metal interface and no more at the slag-coke one. The formation of Ti(C,N) is remarkably restricted by MnO in the slag when the MnO content is about 4% and the basicity from 0.6 to 1.2 in the slag. MnO may also retards the reduction of SiO_2 and accelerates the desulphidation under certain condition.

Key words: blast furnace smelting, TiO_2 , reduction, slag, MnO

DU Hegui; ZOU Anhua, Northeast University of Technology, Shenyang, China Du Hegui, Professor, Department of Ferrous Metallurgy, Northeast University of Technology, Shenyang 110006, China. INFLUENCE OF MnO ON REDUCTION OF TiO_2 IN BLAST FURNACE TYPE SLAG[J]. Acta Metallurgica Sinica (English Letters), 1992, 5(7): 1-7.

[1]	Nan Liu, Zhi Dong, Zongqing Ma, Zhu Qian, Lei Ma, Liming Yu, Yongchang Liu. Influence of Yttrium Addition on the Reduction Property of Tungsten Oxide Prepared via Wet Chemical Method [J]. Acta Metallurgica Sinica (English Letters), 2020, 33(2): 275-280.
[2]	N. Thangapandian, S. Balasivanandha Prabu , K. A. Padmanabhan. Effect of Temperature on Grain Size in AA6063 Aluminum Alloy Subjected to Repetitive Corrugation and Straightening [J]. Acta Metallurgica Sinica (English Letters), 2019, 32(7): 835-844.
[3]	Yi-Quan Zhao, Hong-Mei Chen, Jing Zhang, Ru Ma, Yan-Dong Liu, Yi-Nong Wang, Ling Wang, Qun Zhang, Wei-Gang Li. Influences of Asymmetric Reduction Rolling on the Microstructure and Mechanical Properties of AZ91 [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(7): 673-680.
[4]	Chen-Ye Wang, Wei-Jun Bao, Zhan-Cheng Guo, Hui-Quan Li. Carbon Dioxide Sequestration via Steelmaking Slag Carbonation in Alkali Solutions: Experimental Investigation and Process Evaluation [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(7): 771-784.
[5]	Qiang Li, Yun-Bo Zhong, Chu-Xiong Sun, Huai Wang, Tian-Xiang Zheng, Wei-Li Ren, Zhong-Ming Ren. Effect of Transverse Static Magnetic Field on Droplets Transient and Inclusions Evolution During the Electroslag Remelting Process of GCr15 Ingots [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(12): 1311-1316.
[6]	Maha Vishnu D. Sri, N. Sanil, Mohandas K. S., K. Nagarajan. Factors Influencing the Direct Electrochemical Reduction of Nb₂O₅ Pellets to Nb Metal in Molten Chloride Salts [J]. Acta Metallurgica Sinica (English Letters), 2017, 30(3): 218-227.
[7]	Yi SUN, Milin ZHANG, Wei HAN, Mei LI, Yusheng YANG, Yongde YAN,Meng ZHANG. Electrochemical Preparation of Mg-Li-Al-Er Alloys by Co-reduction in Molten Chloride [J]. Acta Metallurgica Sinica (English Letters), 2013, 26(4): 455-460.
[8]	Xiang ZHAO, Fenghui WANG. Elastoplastic Properties of Solid Oxide Fuel Cell Before and After Reduction [J]. Acta Metallurgica Sinica (English Letters), 2013, 26(2): 137-142.
[9]	Honglei ZHANG, Guocai ZHU, Hong YAN, Yuna ZHAO, Tiancheng LI,Xiujuan FENG. Reduction of Low-grade Manganese Dioxide Ore Pellets by Biomass Wheat Stalk [J]. Acta Metallurgica Sinica (English Letters), 2013, 26(2): 167-172.
[10]	Honglei ZHANG,Guocai ZHU,Hong YAN,Yuna ZHAO,Fangpu CHEN,Wenjuan WANG. An investigation on stability of biomass reduced manganese dioxide ore [J]. Acta Metallurgica Sinica (English Letters), 2012, 25(6): 435-442.
[11]	Yungang LI, Jie LI, Kuai ZHANG, Limin LIU. Electrochemical behavior of Cu in the (NaCl-KCl-CuCl) molten salt [J]. Acta Metallurgica Sinica (English Letters), 2011, 24(6): 466-472.
[12]	Z.L. Mi, D. Tang, Y.J. Dai, H.Q. Wang, S.S. Li. Influence of Cold Rolling Reduction on Microstructure and Mechanical Properties of TWIP Steel [J]. Acta Metallurgica Sinica (English Letters), 2007, 20(6): 441-447 .
[13]	Y.Z. Lan, S. Zhang, J.K. Wang. Phosphorus Removal Using Steel Slag [J]. Acta Metallurgica Sinica (English Letters), 2006, 19(6): 449-454 .
[14]	J. Li, W. Liu, Y.Q. Lai. COUPLED SIMULATION OF 3D ELECTRO-MAGNETO-FLOW FIELD IN HALL-HEROULT CELLS USING FINITE THOD [J]. Acta Metallurgica Sinica (English Letters), 2006, 19(2): 105-116 .
[15]	Y.Z.Lan. EFFECT OF THE HEAT OF REACTION DURING THE ALUMINOTHERMIC PROCESS OF ILMENITE [J]. Acta Metallurgica Sinica (English Letters), 2005, 18(2): 173-176 .

INFLUENCE OF MnO ON REDUCTION OF TiO_2 IN BLAST FURNACE TYPE SLAG

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments