Amir Charkhi - Nuclear Fuel Cycle Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎P.O‎. ‎Box‎: ‎۱۱۳۶۵-۸۴۸۶‎, ‎Tehran‎, ‎Iran
Parisa Zaheri - Nuclear Fuel Cycle Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎P.O‎. ‎Box‎: ‎۱۱۳۶۵-۸۴۸۶‎, ‎Tehran‎, ‎Iran
Amjad Sazgar - Nuclear Fuel Cycle Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎P.O‎. ‎Box‎: ‎۱۱۳۶۵-۸۴۸۶‎, ‎Tehran‎, ‎Iran
Iman Dehghan - Nuclear Fuel Cycle Research School‎, ‎Nuclear Science and Technology Research Institute‎, ‎P.O‎. ‎Box‎: ‎۱۱۳۶۵-۸۴۸۶‎, ‎Tehran‎, ‎Iran

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 ۱۳۷.۹ and ۱۸۱.۲ kPa by monitoring the gas phase pressure. The reaction temperature was adjusted to ۲۰۴±۱ ◦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 ۶.۸۶ × ۱۰-۴ s-۱.

volumetric method, Fluorination, Tellurium hexafluoride, Kinetic parameters