Low-temperature synthesis method of polyfluorocarbon

Abstract

The invention discloses a low-temperature synthesis method of polyfluorocarbon. The low-temperature synthesis method comprises the steps: reacting graphite with antimony pentachloride to prepare an antimony pentachloride graphite intercalation compound, wherein the reaction temperature is 300-400 DEG C, and the reaction time is 7 h; and introducing a fluorine-helium mixed gas to a reactor, and carrying out a reaction for 5-10 h, wherein fluorine in the fluorine-helium mixed gas accounts for 12%-15% of the total volume of the mixed gas. The synthesis reaction temperature of polyfluorocarbon isfar lower than the decomposition temperature of polyfluorocarbon, so that potential explosion hazards are avoided; polyfluorocarbon can be formed in common fluorination equipment, the control range ofthe reaction temperature is relatively wide, and the reaction temperature is easy to control; and the production cost is relatively low, and the yield is relatively high.

Description

technical field [0001] The invention belongs to the technical field of graphite, and in particular relates to a low-temperature synthesis method of polyfluorocarbon. Background technique [0002] As a deep-processing product of graphite, polyfluorocarbons have been studied in my country as early as the 1970s. At present, the high-temperature synthesis method used in the production of polyfluorocarbons is very unsafe for graphite and fluorine to react at high temperatures, and it is accompanied by a large number of by-products. Produced, the output rate of the final polyfluorocarbon is low. Contents of the invention [0003] In order to overcome the above-mentioned technical problems in the prior art, the object of the present invention is to provide a low-temperature synthesis method of polyfluorocarbons, which is safe in production and high in yield. [0004] The low-temperature synthesis method of polycarbonic fluoride provided by the invention comprises the following st...

AI Technical Summary

Problems solved by technology

[0002] As a deep-processing product of graphite, my country began to study polyfluorocarbons as early as the 1970s. At present, the high-temperature synthesis method used in the production of polyfluorocarbons is very unsafe for graphite and fluorine to react at high temperatures, and it is accompanied by a large number of by-products. Produced, the final yield of polyfluorocarbons is low