Advertisement

Granulation of Semisteel by Rotary Disc Atomizer

  • Wenchao He
  • Xuewei LvEmail author
  • Feifei Pan
  • Xueqin Li
  • Zhiming Yan
  • Zhengde Pang
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Semisteel, the main by-product of titania slag smelting process of ilmenite concentrate with an electric furnace, is of high sulphur and low carbon. As a result, the semisteel cannot be widely used in the steeling process and the market value is relatively low. In order to enhance the added value of semisteel, a novel process which was based on a rotary disc atomizer was suggested on semisteel to produce iron powders in the present study. The oxidation degree of the obtained iron granules was studied by thermogravimetric analysis (TG) in the mixture gas of nitrogen and hydrogen.

Keywords

Granulation Semisteel Rotary disc atomizer 

Notes

Acknowledgements

The authors are especially thankful to the Fundamental Research Funds for the Central Universities (Grant No. 2018CDQYCL0026), the National Natural Science Foundation of China (Grant No. 51674053) and Graduate Research and Innovation Foundation of Chongqing (Grant No. CYB17002).

References

  1. 1.
    Chen K, Liu X, Sun X (2013) The supply-demand situation of rutile resources and the prospect analysis of development and exploitation in Xinyi area. Mod Min 29(4):126–127Google Scholar
  2. 2.
    Yan S (1999) Utilization and construction model of titanium resources in Panzhihua. Nonferrous Met Des 4:66–69Google Scholar
  3. 3.
    Lu R, Jia H (2014) The production technology status and development analysis of high titanium slag in China. China Metal Bull 10:43–45Google Scholar
  4. 4.
    Yu W (2005) Experimental study of carburisation and desulfuration for semisteel. Sichuan Metall 27(2):29–32Google Scholar
  5. 5.
    Tang W, Zhang J (2011) Energy consumption analysis and comments of manufacturing titanium dioxide by sulfuric acid process and chloride process. Inorg Chem Ind 43(6):7Google Scholar
  6. 6.
    Liu S, Zhao J (2007) Development and prospect of iron and steel powder China. In: 2007 CSM annual meeting proceedings 1:361–364Google Scholar
  7. 7.
    Yu X (1997) Sponge iron and reduced iron powder produced by Hoganas process. Powder Metall Ind 3:31–39Google Scholar
  8. 8.
    Pickering SJ, Hay N, Roylance TF et al (1985) New process for dry granulation and heat recovery from molten blast-furnace slag. Ironmaking Steelmaking 12(1):14–21Google Scholar
  9. 9.
    Kashiwaya Y, Yutaro IN, Akiyama T (2010) Development of a rotary cylinder atomizing method of slag for the production of amorphous slag particles. ISIJ Int 50(9):1245–1251CrossRefGoogle Scholar
  10. 10.
    Kashiwaya Y, Yutaro IN, Akiyama T (2010) Mechanism of the formation of slag particles by the rotary cylinder atomization. ISIJ Int 50(9):1252–1258CrossRefGoogle Scholar
  11. 11.
    Wang D, Peng H, Ling X (2014) Ligament mode disintegration of liquid film at the rotary disk rim in waste heat recovery process of molten slag. Energy Proc 61:1824–1829CrossRefGoogle Scholar
  12. 12.
    Qin Y, Lv X, Bai C et al (2013) Dry granulation of molten slag using a rotating multi-nozzle cup atomizer and characterization of slag particles. Steel Res Int 84(9):852–862CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Wenchao He
    • 1
    • 2
  • Xuewei Lv
    • 1
    • 2
    Email author
  • Feifei Pan
    • 1
    • 2
  • Xueqin Li
    • 1
    • 2
  • Zhiming Yan
    • 1
    • 2
  • Zhengde Pang
    • 1
    • 2
  1. 1.Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and New MaterialsChongqing UniversityChongqingChina
  2. 2.College of Materials Science and EngineeringChongqing UniversityChongqingChina

Personalised recommendations