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
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Halogen exchange fluorination is one of the effective methods for the synthesis of fluorine-containing organic compounds. However, in this paper, the application of microwave heating in the fluorination of halogen exchange is studied. It is found that the reaction rate can be increased to about 50 times of the conventional heating and can be improved. Yield and inhibition of side effects. The effects of microwave on the fluorination of halogen exchange and its mechanism were studied systematically from the aspects of heating source, fluorinating agent, solvent, catalyst, by - product and macroscopic kinetics. The results show that the order of the reaction rate in different heating modes is: continuous full wave microwave> continuous half microwave> home intermittent half microwave> silicon oil bath.

The surface area of anhydrous potassium fluoride prepared by azeotropic and microwave drying is much larger than that of ordinary calcination method. The microwave drying method utilizes the expansion effect of microwave rapid heating, which is an innovative method. Solvent studies have shown that dimethyl sulfoxide (DMSO) has a higher polarity, boiling point and stability, and is the best solvent under conventional and microwave heating conditions. The catalytic activity of the common quaternary ammonium salt in the catalyst is good but the decomposition is easy. The PEG-6000 is stable to the heat and alkali but the phase transfer performance is worse than that of the quaternary ammonium salt. Based on this, a high molecular weight quaternary ammonium salt of polydiallyldimethylammonium chloride with high activity and high stability was synthesized, and satisfactory results were obtained for the halogenation fluorination reaction. Lewis acid AlCl3 and SbCl3 were used as catalysts at atmospheric pressure, and it was found that the increase of the fluorination reaction rate of the adjacent groups containing chlorine atoms was much greater than that of the ortho-containing groups, called "ortho-effect". A lot of by-products were found in the assay, mainly from the moisture, solvents and reactants in the system itself. Macro-kinetic studies have shown that the halogenation fluorination reaction is a first-order reaction under conventional heating conditions and is no longer a first-order reaction under microwave heating conditions. This can prove from the macroscopic dynamics that microwave heating has "nonthermal effect". Theoretical deduction and experimental results also show that there is "nonthermal effect" in microwave.