Process for treatment of adipic acid mother liquor

Details Process for treatment of adipic acid mother liquor Process for treatment of adipic acid mother liquor

1968-10-10

1978-02-28

Myers, Jane S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560204, 260531R, 260537R, 260537P, C07C 6934, C07C 6944, C07C 6948

Patent

active

040769488

ABSTRACT:
Treatment of aqueous nitric acid solutions resulting from the nitric acid oxidation of cyclohexanol and/or cyclohexanone in the presence of metal compound oxidation catalysts for recovery of the valuable components contained therein, which comprises adding an alcohol to the aqueous nitric acid solution to esterify the acids present, contacting the resultant alcoholic mixture with a water-immiscible solvent, separating layers into an aqueous phase and an organic phase, treating the aqueous phase to recover the nitric acid and catalyst components and treating the organic phase to recover the acid derivatives.

REFERENCES:
patent: 2824122 (1958-02-01), Kuceski
patent: 2968674 (1961-01-01), Franke et al.
patent: 3329712 (1967-04-01), Danly et al.

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