Process for producing terephthalic acid suitable for use in dire

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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562413, C07C 51265

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active

045944490

ABSTRACT:
A process for producing terephthalic acid suitable for use in direct polymerization, which comprises oxidizing p-xylene with molecular oxygen in an acetic acid solvent in the presence of a heavy metal compound and a bromine compound, wherein after a main reaction step of oxidizing at least 90 mole % of p-xylene fed has been performed,

REFERENCES:
patent: 3387027 (1968-06-01), Alagy
patent: 3859344 (1975-01-01), Shigeyasu et al.
patent: 4212995 (1980-07-01), Shiraki
patent: 4286101 (1981-08-01), Hashizume et al.

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