Method for comprehensive utilization of solvent and by-products in preparation of hexafluoropropylene oxide (HFPO) through oxygen oxidation process
作者： Shi Xiang , Cui Yongwen , Zheng Kuixing , Song Changping , Liu Fengyu
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摘要: The invention relates to the technical field of fluorine chemical industry, in particular a method for comprehensive utilization solvent and by-products preparation HFPO through an oxygen oxidation process. According method, to-be-purified fluorocarbon containing acyl fluoride generated theoxygen process is sequentially subjected separation, alcohol washing, rectification, alkali washing drying obtain with purity 99wt% or above. simple route; important fluorination reagent industry can be obtained; continuously used reaction preparing HFPOafter being purified; more importantly, byproducts are converted into stable neutral esters rather than carboxylic acids, applied wider scope, so purposeof all achieved.
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