Equilibrium, kinetics and breakthrough studies for adsorption of hydrogen fluoride on sodium fluoride

In this study, adsorption of hydrogen fluoride on sodium fluoride adsorbent is investigated through an experimental and theoretical study. This process is very important in a section of a total process of producing and making pure fluorine gas in uranium conversion industry. For applying the section of experimental study, experimental sample of differential adsorbed bed was designed and manufactured with necessary side equipment and the required experiments were applied in 22 and 54 °C. By the use of experimental results, Isotherm curve of hydrogen fluoride adsorption on sodium fluoride adsorbent was obtained which is the main tool for designing of adsorption bed. By considering the experimental results and adsorption models applied in this study, it can be concluded that equilibrium data were well represented by a langmuir isotherm equation with maximum adsorption capacities of 1.908 and 0.750 g HF/g NaF in 22 and 54 °C.