Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing
Patent
1986-05-29
1988-03-22
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
55 2, 55 17, C23F 1500
Patent
active
047327340
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.
REFERENCES:
patent: 3108018 (1963-10-01), Lewis
patent: 4151342 (1979-04-01), Uchino et al.
patent: 4196255 (1980-04-01), Suzuki et al.
patent: 4543394 (1985-09-01), Finlay et al.
Bacher Walter
Bier Wilhelm
Hofert Gerd
Treffner Franz-Willi
Hofert Gerd
Kernforschungszentrum Karlsruhe GmbH
Lacey David L.
Steag Kernenergie GmbH
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