Method for treating waste gas containing fluorochemical
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United States of America Patent
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Aug 5, 2003
Grant Date -
N/A
app pub date -
Feb 20, 2001
filing date -
Aug 17, 1998
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Abstract
A method for decomposing a fluorine-containing compound by contacting an exhaust gas 1 containing a fluorine-containing compound, such as C.sub.2 F.sub.6, with aluminum oxide 3, such as .gamma.-alumina, which has been heated to a high temperature of, for example, 800.degree. C. to 900.degree. C. There may be such a necessary or larger number of moles of H.sub.2 that the fluorine atoms in the fluorine-containing compound become HF. The method has a high decomposition rate of a fluorine-containing compound, a long life, and involves minimal occurrence of CO.
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