Patent ID: 11879025
Assignee: INHANCE TECHNOLOGIES, LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. A method for removing perfluorinated compounds, the method comprising the steps of:
(a) providing a fluoropolymer material in a chamber;
(b) providing an anaerobic environment in the chamber;
(c) heating the chamber to a temperature in a range of 25° C. to 325° C.;
(d) providing a fluorination gas in the chamber after step (b), thereby exposing the fluoropolymer material to the fluorination gas to produce a processed fluoropolymer material;
(e) withdrawing the fluorination gas from the chamber; and
(f) withdrawing the processed fluoropolymer material from the chamber,, wherein the fluoropolymer material is in the form of pellets or powders,, wherein the fluoropolymer material comprises the perfluorinated compounds used in the manufacture of the fluoropolymer material,, wherein the perfluorinated compounds comprise perfluorooctanoic acid (PFOA),, wherein an amount of the PFOA in the processed fluoropolymer material is less than 1.1 wt. % the amount of the PFOA in the fluoropolymer material, and, wherein the fluoropolymer material is a recycled fluoropolymer material.