The invention provides a dechlorination catalyst for degraded waste PVC and a preparation method thereof, belonging to the technical field of waste plastic recycling and utilization. The catalyst is prepared with fly ash from power plant waste and ferrous sulfate residue from titanium dioxide plants as main raw materials through activation, mixing, impregnation, filtration, drying, calcination and other steps. The mass content of ferrous sulfate is 25－100% of fly ash, and the mass content of sodium hydroxide is 1.5－4.5% of fly ash. The catalyst presents excellent catalytic effect in the degradation and dechlorination process of PVC. The catalyst prepared by this method has the advantages of low cost, abundant raw material sources, simple preparation process and prominent catalytic performance, with practical application value and broad application prospects.

Area Code: CN

Application Number: CN200510095698.0