Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2005-07-28
2009-11-10
Puttlitz, Karl J (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
Reexamination Certificate
active
07615663
ABSTRACT:
Disclosed is an optimized process and apparatus for more efficiently producing and purifying aromatic dicarboxylic acids (e.g., terephthalic acid). The optimized system employs at least one zoned slurry concentrator to enhance purification of the aromatic dicarboxylic acid.
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Perry, R.H.; Green, D.W. (1997) Perry's Chemical Engineers' Handbook (7th Edition). McGraw-Hill. 19 (1-65).
Lin Robert
O'Meadhra Ruairi Seosamh
Eastman Chemical Company
Graves, Jr. Bernard J.
Knight Jennifer R.
Puttlitz Karl J
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