Method for preventing fluoroelastomer-related hydrolysis of fluorine-containing gas streams in contact with fluoroelastomeric articles of an industrial gas stream handling system

Abstract

A method for preventing fluoroelastomer-related hydrolysis of a gas stream comprised of a fluorine-containing substance and contained in an industrial system provided with at least one fluoroelastomeric article, including the step of including in portions of the industrial system which contact the gas stream only fluoroelastomeric articles comprised of a fluoroelastomer and lead oxide, the lead oxide content corresponding to a lead percentage in the fluoroelastomer ranging from 1 to 10 percent by weight preferably from 1 to 5 percent by weight, optionally 3 percent by weight. The fluoroelastomeric article may be a seal for the industrial gas stream-handling system. Further, the fluorine-containing substance may be selected from the group consisting of UF.sub.6, HF, BF.sub.3, SiF.sub.4, MoF.sub.6, WF.sub.6, halogen fluorides, and mixtures thereof.

Dependencies are inferred from the claim text.