PROCESS FOR PREPARING TRIFLUOROIODOMETHANE, AND APPARATUS AND CATALYST THEREOF

摘要

PURPOSE: A process for preparing trifluoroiodomethane(CF3I) as a fire extinguisher is provided to simplify the synthetic procedures, to reduce the cost and to increase the yield of CF3I by using a catalyst providing excellent conversion and selectivity. CONSTITUTION: The method comprises the steps of: dissolving an iodine compound selected from the group consisting of BiI3, CaI2, CsI, CoI2·nH2O, CuI, PbI2, NiI2, LiI·2H2O, MnI2, KI, I2, NaI, NaIO3, AgI, AgIO3 and HI into distilled water or an organic solvent, impregnating active carbon with the solution, drying the iodine compound-impregnated active carbon to remove water and solvent completely, dissolving a lanthanoid compound selected from La(NO3)3·6H2O and Ce(NO3)3·6H2O into distilled water, impregnating the dried active carbon with the solution, drying and baking the iodine compound- and lanthanoid metal salt-impregnated active carbon to obtain a catalyst; and performing direct iodination between iodine supplied from an iodine storage tank(12) and CF3H supplied from a tank(13) in a reactor(11) filled with the catalyst obtained from the preceding step to prepare CF3I at a high yield.