Potassium fluoride,anhydrous
           Potassium fluoride,extra pure
           Potassium fluoride,Granular
           Silicon Dioxide
           Hydrofluoric acid
           Synthetic Cryolite
           Potassium Fluoaluminate
           Ammonium bifluoride
           Potassium Bifluoride
           Aluminium fluoride
           Sodium fluoride
           Potassium Fluorosilicate
           Fluorosilicic Acid
           Sodium silicofluoride
           Potassium Hydroxide Flakes
           Magnesium Fluoride
           Magnesium fluorosilicate
           Barium Fluoride
           More
 
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A catalyst for supporting potassium fluoride in a weight percentage of 5-20% potassium fluoride and 80-95% metal oxide, zeolite molecular sieve or activated carbon, the catalyst carrier is calcined at 400 °C for 2 hours and then the catalyst. The carrier was immersed in an aqueous solution of KF, evacuated for 12 hours, dried at 120 °C, and calcined at 600 °C for 4 hours to obtain a catalyst. The catalyst of the invention has the advantages of simple preparation process, easy availability, high activity and selectivity, and the catalyst is separated by filtration after the reaction, and has the characteristics of reusable.