Preparation method for synthesizing 1,1,2,2-tetrafluoroethane catalyst

The invention discloses a preparation method for synthesizing a 1,1,2,2-tetrafluoroethane catalyst . The preparation method comprises the following steps: 1) heating high-quality granular active carbon in hydrochloric acid and hydrofluoric acid solutions respectively till boiling, and performing a reflux reaction; cleaning the high-quality granular active carbon with deionized water, and spin-drying in a centrifugal filter; drying in an oven to obtain purified catalyst carrier; 2) impregnating the purified catalyst carrier in a solution of soluble palladium salt, and filtering to obtain a catalyst precursor; drying the catalyst precursor in a nitrogen filled oven to obtain a palladium catalyst; 3) putting the palladium catalyst in a reactor and introducing high-purity nitrogen; drying at 300 DEG C for 4 hours; introducing hydrogen and reducing for 4 hours; cooling to obtain activated palladium catalyst. The preparation method disclosed by the invention solves the problems that existing1,1,2,2-tetrafluoroethan