Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2005-09-20
2005-09-20
Zucker, Paul A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
Reexamination Certificate
active
06946572
ABSTRACT:
Process for crystallization of adipic acid from a nitric acid oxidation product of cyclohexane in which process the oxidation product is subject to crystallization in a series of crystallizers of decreasing crystallization temperature.
REFERENCES:
patent: 3096369 (1963-07-01), Soeterbroek et al.
patent: 4254283 (1981-03-01), Mock
Invista North America S.a.r.l.
Zucker Paul A.
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