Study on the dehydration kinetics of tunellite using non-isothermal methods

Yilmaz M., Figen A., Piskin S.

Research on Chemical Intermediates, vol.41, pp.1893-1906, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 41
  • Publication Date: 2015
  • Doi Number: 10.1007/s11164-013-1318-6
  • Journal Name: Research on Chemical Intermediates
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1893-1906
  • Yıldız Technical University Affiliated: Yes

Abstract

The thermal behavior of tunellite has been examined by using thermal analysis data at different heating rates. Coats-Redfern, Horowitz-Metzger, Piloyan-Novikova, Doyle, and isoconversional Ozawa kinetic models have been used for the non-isothermal dehydration kinetic investigation of the mineral. The kinetic parameters are computed using the above-mentioned models for all dehydration stages. In addition, structural characterizations of tunellite are analyzed by using an X-ray diffractometer, an inductive coupled plasma-optical emission spectroscopy, Fourier transform infrared spectroscopy, and a scanning electron microscope.