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The influence of grain size on decomposition reaction of limestone in dispersing state

  • Xu De-long
  • Wei Hong-en
  • Luo Yong-qin
Article
  • 38 Downloads

Abstract

The thermal behavior and kinetic parameters of decomposition reaction of limestone in a temperature-programmed mode were investigated by means of TG. The experimental results show that the kinetic model functions in different forms for the thermal decomposition reactions of different limestone grain sizes in dispersing state under the atmosphere of static air are 4(1−α)3/4 for small size limestone and (1−α) for large size limestone. Information was obtained on the relationship among the decomposition temperature, decomposition time, decomposition fraction, decomposition reaction rate constant and grain size of limestone.

Key words

dispersity kinetics CaCO3 TG thermal decomposition 

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Copyright information

© Editorial Office of Journal of Wuhan University of Technology-Materials Science Edition 2004

Authors and Affiliations

  • Xu De-long
    • 1
  • Wei Hong-en
    • 1
  • Luo Yong-qin
    • 1
  1. 1.Institute of Powder EnginceringXi'an University of Arch. & Tech.Xi'anChina

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