Jump to ContentJump to Main Navigation
Show Summary Details
More options …

High Temperature Materials and Processes

Editor-in-Chief: Fukuyama, Hiroyuki

Editorial Board: Waseda, Yoshio / Fecht, Hans-Jörg / Reddy, Ramana G. / Manna, Indranil / Nakajima, Hideo / Nakamura, Takashi / Okabe, Toru / Ostrovski, Oleg / Pericleous, Koulis / Seetharaman, Seshadri / Straumal, Boris / Suzuki, Shigeru / Tanaka, Toshihiro / Terzieff, Peter / Uda, Satoshi / Urban, Knut / Baron, Michel / Besterci, Michael / Byakova, Alexandra V. / Gao, Wei / Glaeser, Andreas / Gzesik, Z. / Hosson, Jeff / Masanori, Iwase / Jacob, Kallarackel Thomas / Kipouros, Georges / Kuznezov, Fedor


IMPACT FACTOR 2018: 0.427
5-year IMPACT FACTOR: 0.471

CiteScore 2018: 0.58

SCImago Journal Rank (SJR) 2018: 0.231
Source Normalized Impact per Paper (SNIP) 2018: 0.377

Open Access
Online
ISSN
2191-0324
See all formats and pricing
More options …
Volume 32, Issue 3

Issues

Kinetics of Reduction of Titano-magnetite Powder by H2

Jie Dang
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Xiaojun Hu
  • Corresponding author
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Guohua Zhang
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Xinmei Hou
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Xiaobo Yang
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Kuochih Chou
  • State Key Laboratory of Advanced Metallurgy, and Department of Physical Chemistry, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-06-15 | DOI: https://doi.org/10.1515/htmp-2012-0128

Abstract

Reduction of titano-magnetite powder containing 56.9 mass% of iron and 9.01 mass% of TiO2 with H2-Ar gas mixtures was investigated in isothermal experiments using thermo-gravimetric analyzer (TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The reduction of titano-magnetite was proved to proceed via a dual reactions mechanism. The first reaction is reduction of titano-magnetite to wüstite and ilmenite and the second one is reduction of wüstite and ilmenite to iron and titanium-containing phase. It was found that the dual reactions occurred simultaneously during the reduction. The reduction kinetics of titano-magnetite was analyzed according to a dual reactions kinetic model and the results indicated that the gaseous species diffusion in product layer was the rate controlling step for the first reaction, and interfacial chemical reaction was that for the second reaction. The apparent activation energies were extracted to be 98 kJ/mol and 115 kJ/mol for the first and second reaction, respectively.

Keywords: titano-magnetite; thermo-gravimetric analysis; hydrogen reduction; kinetics

About the article

Received: 2012-08-07

Accepted: 2012-11-30

Published Online: 2013-06-15

Published in Print: 2013-06-14


Citation Information: High Temperature Materials and Processes, Volume 32, Issue 3, Pages 229–236, ISSN (Online) 2191-0324, ISSN (Print) 0334-6455, DOI: https://doi.org/10.1515/htmp-2012-0128.

Export Citation

©[2013] by Walter de Gruyter Berlin Boston.Get Permission

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
Jun-wei Chen, Yang Jiao, and Xi-dong Wang
International Journal of Minerals, Metallurgy, and Materials, 2019, Volume 26, Number 7, Page 822
[2]
Zhiyuan Chen, Jie Dang, Xiaojun Hu, and Hongyan Yan
Metals, 2018, Volume 8, Number 10, Page 751
[3]
Jie Dang, Yijie Wu, Zepeng Lv, Zhixiong You, Shengfu Zhang, and Xuewei Lv
International Journal of Refractory Metals and Hard Materials, 2018
[5]
Zhenyang Wang, Jianliang Zhang, Jinfang Ma, and Kexin Jiao
ISIJ International, 2017, Volume 57, Number 3, Page 443
[6]
G.-J. Cheng, X.-X. Xue, J.-X. Liu, T. Jiang, and P.-N. Duan
Mineral Processing and Extractive Metallurgy, 2017, Volume 126, Number 3, Page 125
[7]
Gongjin Cheng, Xiangxin Xue, Tao Jiang, and Peining Duan
Metallurgical and Materials Transactions B, 2016, Volume 47, Number 3, Page 1713
[8]
Jie Dang, Guo-hua Zhang, Xiao-jun Hu, and Kuo-chih Chou
International Journal of Minerals, Metallurgy, and Materials, 2013, Volume 20, Number 12, Page 1134

Comments (0)

Please log in or register to comment.
Log in