Proceedings of a symposium sponsored by the Pyrometallurgy Committee and the Energy Committee of the Extraction and Processing Division of TMS (The Minerals, Metals & Materials Society) Held during the TMS 2012 Annual Meeting & Exhibition Orlando, Florida, USA March 11-15, 2012

Jiann-Yang Hwang, Michigan Technological University

Patrick Masset, TU Freiberg

Onuralp Yucel, Istanbul Technical University

Preface xi

Editors xiii

3rd International Symposium on High Temperature Metallurgical Processing

High Efficiency New Metallurgical Technology

A Laboratory Investigation of the Reduction of the Siderite Iron Ore to Iron Nugget 3
N. Panishev, E. Redin, and V. Pilshchikov

Composite Agglomeration Process of Iron Fines 7
T. Jiang, Y. Hu, G Li, Y. Guo, Z Yu, X Fan, Y Zhang, and X Yang

Investigation of Pyrometallurgical Nickel Pig Iron (NPI) Production Process from Lateritic Nickel Ores 17
O. Yucel, A. Turan, and H. Yildirim

Novel Process for Utilizing Low-Grade Manganese Oxide Ores by Sulfur-Based Reduction Roasting-Acid Leaching 25
T. Jiang, Z. You, Y. Zhang, D. Duan, and G. Li

Equipment for Pilot Scale Experiments of NOx Emissions from the Silicon Process 33
I. Solheim, R Jensen, and N. Eivind Kamfford

Slide Gate Systems for Copper Tapping 41
K. Gamweger

Recovery of Huangmei Limonite by Flash Magnetic Roasting Technique 49
W. Chen, X. Liu, Z Peng, and Q. Wang

Studies on Alternative Blast Furnace Burden Structure with High Proportion Sinter 59
J. Fan, G. Qiu, T. Jiang, Y. Guo, Y. Yang, and M. Cai

Hydrothermal Sulfidation of Carbonate-Hosted Zinc-Lead Ore with Elemental Sulfur 67
C. Li, C. Wei, J Liao, Z Deng, H Xu, Y. Song, X Li, and M. Li

Reduction and Titanium Production

Preparation of Titanium Alloy from Titania-bearing Blast Furnace Slag 77
R. Huang, C. Bai, X. Lv, and S. Liu

Basic Research of Direct Pyrolysis Performance of MgCl2 in Molten State 85
Z Ting'an, L. Guozhi, D. Zhihe, L. Yan, N. Liping, Z. Qiuyue, S. Lianxu, and H. Jicheng

Chlorination of Titania Feedstocks 93
S. Moodley, R Eric, A. Kale, and C. Kucukaragoz

Experimental Study on the Pulverization and Reduction Behavior of Sinter in Oxygen Blast Furnace 105
Y. Han, J. Wang, R Lan, L. Wang, X. Zuo, and Q. Xue

Formation of Ti(C,N) in Blast Furnace Slag Bearing High Ti02 113
S. Ma, G. Qiu, Q. Deng, and H. Wang

Research on Carbonthermal Reduction Behavior of Ilmenite 121
Y. Guo, L. Chen, T. Jiang, W. Weng, and F. Chen

Reduction Kinetics of Low Grade Hematite Ore 129
Y. Xiao, Z He, T. Chun, D. Zhu, and J. Pan

Viscosity Evolution of Blast Furnace Slag Bearing Titanium 137
H. Wang, G Qiu, Q. Deng, and S. Ma

Basic Research of Metallurgical Process

Thermal Decomposition and Regeneration of Wüstite 147
Z. Peng, J Hwang, Z. Zhang, M. Andriese, and X. Huang

Competitive Precipitation and Growth of Spinel Crystals in Vanadium Slag 157
X. Zhang, B. Xie, J. Diao, and X. Li

Expert System for Grate-Kiln Pellet Production Based on Mathematical Models of Temperature Field 165
X. Fan, Y. Wang, and X. Chen

The Influence of Sodium Oxide on the Distribution Behavior of Some Elements at the S-Furnace of the Mitsubishi Process 175
Y. Kimura, and K. Yamaguchi

Effect of Temperature on Equilibrium Phase Relation and Liquidus of CaOSiO2-Al2O3-FeOx System 183
N. Wang, Z Zou, Z. Zhang, Y. Xiao, and Y. Yang

Viscosity Determination of the Freeze Slag in Reaction Shaft of Flash Smelting Furnace 189
J. Wang, Y. Wu, L. Liang, and G. Zhang

Effect of MgO Content on Melting Features and Viscosity of Si02-CaO-MgOAl2O3-FeO Slag in Nickel Latérite Metallurgy 197
X Lv, G Pan, G Bai, G. Qiu, and M. Hu

Influence of Silicon Content in Hot Metal on Mineralogical Characterization and Physico-chemical Properties of Vanadium Slag 203
G. Zhao, B. Xie, X Zhen, Q. Huang, and X. Zhang

Analysis of Influence Factors on the Melting Point of the Freeze Slag Inside Flash Smelting Furnace Brickless Reaction Shaft 211
J. Wang, and G. Zhang

Alloy and Materials Preparation

Improving Hot Workability of Ledeburitic Tool Steels 221
M. Fazarinc, G. Kugler, I. Perus, and M. Tercelj

Influence of Elements Segregation on Creep Properties of a Single Crystal Nickel-Based Superalloy 229
G. Zhang, S. Tian, X Yu, Z Zeng, and G Liu

Preparation of Titanium Ferrous Alloys with Low Oxygen Content Prepared by Reduction-SHS 237
Z. Ting-an, D. Zhihe, Z Hanbo, Z Zhiqi, N. Liping, and H. Jicheng

Preparing Aluminum-Scandium Alloys Using Direct Hall Reduction Process 243
G. Guan, J. Xue, J. Zhu, and Q. Liu

Production of NbAl3 Powders through Sodium Reduction of Oxides in Molten Salts 251
C. Du, N. Wang, Y. Zhang, S. Jiao, and H. Zhu

Recrystallization of L-605 Cobalt Superalloy during Hot-Working Process 257
J. Favre, Y. Koizum...