Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2003-11-14
2009-02-03
Oh, Taylor Victor (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S414000, C562S416000
Reexamination Certificate
active
07485746
ABSTRACT:
A process for oxidation with oxygen of at least one aromatic hydrocarbon having oxidizable, substituents that maximizes the utilization of oxygen without reduction in the quality of the carboxylic acid products produced by means of a stagewise countercurrent oxidation system is disclosed.
REFERENCES:
patent: 2962361 (1960-11-01), Spiller, Jr. et al.
patent: 3092658 (1963-06-01), Baldwin et al.
patent: 3406196 (1968-10-01), Sebelist et al.
patent: 2001/0007910 (2001-07-01), Housley et al.
Abrams Kenneth J.
Belmonte Frank G.
Figgins Dale A.
Leung Linus Kai-Wah
Meller Christopher G.
BP Corporation North America Inc.
Cummings Kelly L.
Oh Taylor Victor
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