Electrochemicalfluorination of 4-(perfluoro-n-butyl)-n-butanoyl chloride produces perfluorooctanoyl fluoride in higher yields than those obtained from n-octanoyl chloride, which is the usual starting material. In particular, one of the by-products of the industrial process, the cyclic perfluoroether perfluoro-2-propyl-tetrahydropyran, is not formed. Also the other by-products. except fluorocarbon
Analysis of the products from the electrochemical fluorination of octanoyl chloride
作者:H.W. Prokop、H-J Zhou、S-Q Xu、C-H Wu、C.C. Liu
DOI:10.1016/s0022-1139(00)82946-2
日期:1989.5
The perfluorinated products from the electrochemicalfluorination of octanoyl chloride were analyzed using several techniques. Capillary gas chromatography was used for quantitative analysis of the desired product, perfluorooctanoyl fluoride, and for perfluorinated cyclic ether by-products. Isopropyl ether was an effective solvent, and ethylbenzene served as an internal
The present invention relates to a method for preparing a pitch fluoride, which comprises reacting pitch with fluorine in a fluorine type inert medium.
This invention pertains to perfluoropolyethers and perhalogenated chlorofluoroether polymers that can be prepared by fluorinating polymers made by the polymerization of acetals, ketals, polyacetals, polyketals and orthoesters with elemental fluorine.