Nitration process
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United States of America Patent
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Oct 5, 1999
Grant Date -
N/A
app pub date -
Jul 30, 1998
filing date -
Jul 30, 1998
priority date (Note) -
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Abstract
A continuous process to nitrate a nitratable aromatic compound utilizing nitric acid and sulfuric acid feed stocks is described. The process includes the collecting of NO.sub.x O gases with water under pressure to and treating the NO.sub.x gases with water under pressure to produce weak nitric acid which is recycled to the nitric acid feed stock. The process is efficient, permitting the venting of NO.sub.x free gases to the atmosphere.
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