Kinetics of Thermal Decomposition of Strontium Carbonate


Creative Commons License

SEZER R., YILMAZ E., ERTÜRK S., ARSLAN C.

1. INTERNATIONAL TECHNOLOGICAL SCIENCES AND DESIGN SYMPOSIUM, 27 - 29 June 2018, pp.433

  • Publication Type: Conference Paper / Summary Text
  • Page Numbers: pp.433
  • Karadeniz Technical University Affiliated: Yes

Abstract

Strontium carbonate (SrCO3) is used for manufacturing of hard magnets, X-Ray tubes, special glasses, ceramics and other strontium chemicals. SrCO3 usually decomposes at early stages of these high temperature production processes. The kinetics of the calcination of SrCO3 was investigated in a laboratory scale muffle furnace, open to
the atmosphere. Calcination experiments were run at 1000, 1100 and 1200°C for different process times between 5 and 120 minutes. Calcination rates were calculated from the mass loss of the dry starting material. SrCO3 was totally decomposed to strontium oxide (SrO) and carbon dioxide (CO2) gas at 1200°C for 45min. Kinetics
calculations, were made for up to 45min experiments at three different temperatures and suited to the first-degree reaction kinetics. The activation energy of the SrCO3 was evaluated to be 195 kJ/mol.