Process for reducing the formaldehyde content of a gas
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United States of America Patent
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Dec 4, 2007
Grant Date -
Apr 12, 2007
app pub date -
Oct 7, 2005
filing date -
Oct 7, 2005
priority date (Note) -
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Abstract
There is provided a process for reducing formaldehyde content of a gas comprising the step of contacting the gas with an aqueous oxidizing solution comprising at least one cation, a base, and H.sub.2O.sub.2 so as to oxidize at least a part of the formaldehyde contained in the gas into formic acid. Thus, a gas having a reduced content in formaldehyde as compared to the gas before the process and a solution comprising formic acid, are so-obtained. Such a process can be particularly useful for treating various types of gases containing formaldehyde.
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