Production of adipic acid from acidic wash waters

Details Production of adipic acid from acidic wash waters Production of adipic acid from acidic wash waters

1978-04-28

1980-10-07

Garner, Vivian

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

Organic compounds

Carboxylic acids and salts thereof

562524, 562525, 562529, 562593, C07C 5124, C07C 5514

Patent

active

042270219

ABSTRACT:
An improved process for producing adipic acid from the acidic wash waters which arise in the process for oxidizing cyclohexane with air, by treatment with nitric acid at from 10.degree. to 50.degree. C., with removal of the heat of reaction by external cooling, wherein the reaction mixture is led, at a flow velocity of at least 2.0 m/sec, as a thin layer spirally in counter-current to the coolant, under conditions which do not perturb the flow of the reaction mixture.

REFERENCES:
patent: 3365490 (1968-01-01), Arthur et al.
patent: 3564051 (1971-02-01), Haarer et al.
patent: 3997601 (1976-12-01), Langley
Smeykal et al., Chem. Techn., 13, pp. 132-139 (3-1961).

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