A precise proportioning device for raw materials for perfluoropolyether synthesis

Abstract

The utility model relates to perfluoropolyether synthetic preparation technical field discloses a kind of raw material accurate proportioning device for perfluoropolyether synthesis, it include: reaction kettle, and the dilution mechanism of supplementary dilute fluorine gas in reaction kettle, fluorine gas pipe and inert gas pipe are provided on the dilution mechanism, first mass flow controller is provided on the fluorine gas pipe, the accurate delivery of fluorine gas is realized;Through the cooperation between reaction kettle, dilution mechanism, first mass flow controller and mixing mechanism, fluorine gas and inert gas can be preliminarily scattered by dilution mechanism, and fluorine gas and inert gas are mixed after being drained after scattering, so as to dilute fluorine gas, reduce the concentration of fluorine gas, to reduce the risk of explosion, and low concentration fluorine gas can be mixed uniformly with reactant in reaction kettle, improve the efficiency of perfluoropolyether synthesis, and improve the safety of preparation perfluoropolyether process.

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