Hazardous or toxic waste destruction or containment – Processes for making harmful chemical substances harmless,... – By heating to effect chemical change. e.g. – pyrolysis
Reexamination Certificate
2010-08-10
2011-11-29
Hendrickson, Stuart (Department: 1736)
Hazardous or toxic waste destruction or containment
Processes for making harmful chemical substances harmless,...
By heating to effect chemical change. e.g., pyrolysis
C210S915000, C423S500000
Reexamination Certificate
active
08067661
ABSTRACT:
To provide a good and simple method for decomposing and detoxifying a hardly decomposable fluorinated organic compound.Specifically, a fluorinated organic compound is decomposed by bringing an aqueous solution of the fluorinated organic compound into contact with a catalyst containing a metal oxide. The metal oxide may preferably be an oxide of at least one metal selected from the group consisting of Ni, Pd, Cu, Mn, Fe and Co, and more preferably be nickel oxide. The contact temperature is preferably within the range of from 0 to 100° C. Preferably, the fluorinated organic compound to be decomposed is an organic fluorocarboxylic acid, an organic fluorosulfonic acid or a salt thereof, which is used as a surfactant or an surface treatment agent.
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Matsuoka Yasuhiko
Nomura Jumpei
Asahi Glass Company Limited
Hendrickson Stuart
Iqbal Syed
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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