NITRIC ACID PRODUCTION
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Aug 21, 2012
filing date -
Aug 22, 2011
priority date (Note) -
Abandoned
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Abstract
A method for reducing the levels of nitrogen oxides in the tail gas from a nitric acid production process by adding ozone to the absorber column of the production process. Nitric acid formation is also intensified by adding a mixture of secondary air and oxygen to the absorber column.
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