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Rare Metals

, Volume 29, Issue 3, pp 280–285 | Cite as

Effect of atmosphere on the synthesis of potassium titanate

  • Jiea Li
  • Yong Wang
  • Lina Wang
  • Tichang Sun
  • Tao Qi
  • Yi Zhang
Article

Abstract

Potassium titanate (K4Ti3O8) was synthesized by the reaction between ilmenite and concentrated KOH solution in the atmosphere of nitrogen, still air, and oxygen, respectively. The obtained samples were systematically investigated by X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometer (ICP-OES), and scanning electron microscopy (SEM). XRD results indicate that K4Ti3O8 have been synthesized in different atmospheres. The oxidizing atmosphere could enhance the conversion rate of Ti from ilmenite to K4Ti3O8, and Fe(II) is easily oxidized to trivalent iron Fe(III) during the reaction. Furthermore, SEM images show that the different atmospheres have significant effect on K4Ti3O8 crystal morphology and particle size. Well shaped K4Ti3O8 crystals are obtained in nonoxidizing atmosphere.

Keywords

potassium titanate synthesis atmosphere effect crystal structure 

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Copyright information

© Journal Publishing Center of University of Science and Technology Beijing and Springer Berlin Heidelberg 2010

Authors and Affiliations

  • Jiea Li
    • 1
    • 2
    • 3
  • Yong Wang
    • 2
    • 3
  • Lina Wang
    • 2
    • 3
  • Tichang Sun
    • 1
  • Tao Qi
    • 2
    • 3
  • Yi Zhang
    • 2
    • 3
  1. 1.School of Civil and Environmental EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process EngineeringChinese Academy of SciencesBeijingChina
  3. 3.Key Laboratory of Green Process and Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingChina

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