Radiation Physics and Engineering
A peer-reviewed journal published by K. N. Toosi University of Technology

Kinetic investigation of tellurium hexafluoride production using the volumetric method

Document Type : Research Article

Authors

Amir Charkhi
Parisa Zaheri
Amjad Sazgar
Iman Dehghan

Nuclear Fuel Cycle Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎P.O‎. ‎Box‎: ‎11365-8486‎, ‎Tehran‎, ‎Iran

https://doi.org/10.22034/rpe.2022.342624.1089
Abstract
Since the production of tellurium hexafluoride gas requires the design of a suitable reactor system, so the study of tellurium oxide fluorination kinetics is of great importance. For this purpose, a novel laboratory system was designed and constructed to study the fluorination reactions by the volumetric method. Fluorine gas was injected into the reactor containing a tellurium oxide pellet, and the reaction was studied by following the changes in pressure of the gas phase using a pressure transmitter instrument. In this volumetric system, the kinetic parameters of the reaction between tellurium oxide pellet and fluorine gas have been derived for a pressure range of 137.9 and 181.2 kPa by monitoring the gas phase pressure. The reaction temperature was adjusted to 204±1 ◦C using a heater. The results showed that the fluorination reaction of tellurium oxide is a first-order reaction. The reaction rate constant is calculated to be 6.86 × 10-4 s-1.

Highlights

  • The kinetic reaction of tellurium hexafluoride synthesis was studied using the volumetric method.
  • A laboratory system was designed and constructed for the volumetric method.
  • The fluorination of tellurium oxide was a first-order reaction in the temperature of 204 ± 1 ◦C

Keywords

Volumetric method
Fluorination
Tellurium hexafluoride
Kinetic parameters
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Radiation Physics and Engineering
Volume 3, Issue 4
Autumn 2022
Pages 31-34

  • Receive Date 18 May 2022
  • Revise Date 21 June 2022
  • Accept Date 05 July 2022

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