Abstract:Due to the excellent performance of CeO2 particles, the market demand for CeO2 particles is increasing year by year. In order to explore the possibility of using the Ruthner type spray roasting reactor for industrial production of iron oxide particles to produce CeO2 particles, combined with the single drop weight loss experiment, ANSYS Fluent software was used to explore the effects of four different heating temperatures on the reactor at 550, 650, 750 and 850 ℃. The experiment of single drop weight loss shows that the pyrolysis process of cerium chloride is basically the same as that of ferric chloride and ferrous chloride, and it is theoretically feasible to prepare CeO2 particles with this type of reactor. The specific process of chemical reaction inside a small industrial reactor was studied by modeling it at equal scale. The results show that 550 ℃ is the most suitable temperature, which has certain guiding significance for industrial production.