Liquid phase air oxidation process for making phthalic acids

Details Liquid phase air oxidation process for making phthalic acids Liquid phase air oxidation process for making phthalic acids

1976-07-13

1979-07-24

Killos, Paul J.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5133

Patent

active

041623657

ABSTRACT:
An improvement in the liquid phase air oxidation process based upon a solvent system such as acetic acid and with a bromine activated heavy-metal catalyst system for preparing phthalic, isophthalic and terephthalic acids from their corresponding alkyl benzenes wherein the heavy metal is a soluble cobalt compound and sufficient excess of air is introduced so that the waste gas still contains an excess of oxygen.

REFERENCES:
patent: 3139452 (1964-06-01), Hays
patent: 3354202 (1967-11-01), Zimmerschiel et al.

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