Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2008-05-13
2008-05-13
Eyler, Yvonne (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S414000, C562S415000, C562S416000
Reexamination Certificate
active
11154139
ABSTRACT:
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
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de Vreede Marcel
Partin Lee Reynolds
Strasser Wayne Scott
Wonders Alan George
Eastman Chemical Company
Eyler Yvonne
Graves, Jr. Bernard J.
Katakam Sudhakar
Owen Steven A.
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