Development of processes for utilization of by-products from production of fluoropolymers

Abstract

Recovery of zinc from solid wastes from production of fluoropolymers is studied. The processes of zinc utilization for preparation of zinc3graphite and zinc3phosphate3poly(tetrafluoroethylene) anticorrosion coatings are developed, including those using mother liquors from production of fluoropolymers.

Preparation of composite electrochemical coatings using fluoropolymer production wastes

“…This concerns, in particular, F-4MD fl uoroplastic, a copolymer of hexafl uoropropylene and tetrafl uoroethylene (HFP-TFE). There are also wastes that do not contain the target product, e.g., the zinc-containing slime from trifl uorochloroethylene production, consisting of zinc and its compounds (18% Zn, 10% ZnCO 3 , 64% ZnO, and 8% ZnCl 2 ) [3].…”