Fluoropolymers in the purification of hydrogen halides

A number of properties of fluoro polymers in aqueous solutions of hydrogen halides have been investigated. The results enable fluoropolymers to be use d in the purification of hydrogen halides and their aqueous solutions. The hydrophobicity of fluoropolymers and their diffusion permeability enable pr oduction of hydrogen halides of low moisture content. A second unit for hyd ro-ionic convection is based on hydro-ionic repulsion (determined by the hy drophobic properties of the fluoropolymer) and ionic elimination. The two u nits enable the highly effective, ecologically safe manufacture of highly p ure hydrogen halides and their aqueous solutions to be carried out with min imum feedstock, cooling water, and power consumption.