Continuous production of aromatic carboxylic acids
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United States of America Patent
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Feb 11, 1992
Grant Date -
N/A
app pub date -
Nov 29, 1990
filing date -
Nov 29, 1990
priority date (Note) -
Expired
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Abstract
Disclosed is an improved process for the continuous production of aromatic carboxylic acids such as terephthalic acid by the liquid-phase oxidation of an alkyl aromatic compound using an oxygen-containing gas. Operation of the process is improved by providing a spray of recycled reaction medium at or near the top of a columnar oxidation vessel to minimize entrainment of liquid and/or solid components of the reactor in the process off-gas.
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