The Effect of Temperature on the Kinetic Parameters of TeF6 Production

Abstract

This study examined the kinetics of the reaction between tellurium oxide (TeO2) and fluorine gas (F2) to produce tellurium hexafluoride gas (TeF6). This investigation was conducted between 150 and 250 °C and between 1 and 2 bar of pressure. To achieve this, a volumetric method was utilized for the design and constructionof a laboratory system. The supply of feed gases, the fluorination reactor, and the collection and removal of the unreacted gases constitute the three primary components of this laboratory system. To obtain the kinetic parameters, the Arrhenius form of the reaction rate was used. The results obtained indicate that the fluorination reaction of tellurium oxide is a first-order reaction between 150 and 200 °C and a second-order reaction at 250 °C. The AARE values were calculated as 0.57% and 0.46%, respectively, which indicates the excellent capability of kinetic models to predict the reaction kinetics of TeF6 gas production.

Keywords

• volumetric method
• fluorination
• tef6
• kinetic study