Process for producing terephthalic acid suitable for use in dire

Details Process for producing terephthalic acid suitable for use in dire Process for producing terephthalic acid suitable for use in dire

1983-11-29

1986-06-10

Trousof, Natalie

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

Organic compounds

Carboxylic acids and salts thereof

562413, C07C 51265

Patent

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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