Oxidation product recovery

Details Oxidation product recovery Oxidation product recovery

1977-03-07

1978-10-17

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260465F, 260586P, 260593A, 260592, 260610A, 260613R, 260613D, 260674SE, 568798, 568754, 568774, 568741, 568780, 568781, 568706, 568708, 568736, C07C 2704, C07C 2734, C07C 3708, C07C 4524

Patent

active

041209028

ABSTRACT:
A process for the separation and purification of reaction product from the oxidation of hydrocarbyl aromatic compounds to hydrocarbyl aromatic hydroperoxides is provided comprising (1) extracting the oxidation effluent with an aqueous alcoholic base, (2) contacting the aqueous phase thus produced with a paraffin hydrocarbon solvent to remove residual unoxidized hydrocarbyl aromatic, (3) extracting the aqueous hydrocarbyl aromatic hydroperoxide phase remaining with an aromatic solvent, and (4) washing of the hydroperoxide-containing aromatic phase with water to remove base. The resulting hydroperoxide phase substantially free of unoxidized hydrocarbyl aromatic can be subjected to acid-catalyzed cleavage to produce hydroxy aromatic and carbonyl compound products without encountering the problem of azeotrope formation between unoxidized hydrocarbyl aromatic reactant with cleavage product.

REFERENCES:
patent: 2430864 (1947-11-01), Farkas et al.
patent: 2915558 (1959-12-01), Alders et al.
patent: 3190923 (1965-06-01), Sodomann et al.
patent: 3821314 (1974-06-01), Arkell et al.

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