PROCESS FOR PREPARING A CATALYST FOR THE SYNTHESIS OF 1,1,1,2-TETRAFLUOROETHANE

摘要

The reactive catalyst for synthesizing 1,1,1,2-tetrafluoroethane(HFC-134a) is prepared by (1) reacting magnesium chromate(MgCrO4) or magnesium dichromate(MgCrO2) with hydrogen fluorine(HF) and ethanol, (2) filtering, drying and burning the reacted product. The produced catalyst remarkably lowers inactivation speed.