Catalytic process for formaldehyde oxidation
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United States of America Patent
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Dec 17, 1996
Grant Date -
N/A
app pub date -
Mar 30, 1995
filing date -
Mar 30, 1995
priority date (Note) -
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Abstract
Disclosed is a process for oxidizing formaldehyde to carbon dioxide and water without the addition of energy. A mixture of formaldehyde and an oxidizing agent (e.g., ambient air containing formaldehyde) is exposed to a catalyst which includes a noble metal dispersed on a metal oxide which possesses more than one oxidation state. Especially good results are obtained when the noble metal is platinum, and the metal oxide which possesses more than one oxidation state is tin oxide. A promoter (i.e., a small amount of an oxide of a transition series metal) may be used in association with the tin oxide to provide very beneficial results.
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