Process and apparatus for producing terephthalic acid with high

Details Process and apparatus for producing terephthalic acid with high Process and apparatus for producing terephthalic acid with high

1980-03-24

1981-10-27

Siegel, Alan

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5116

Patent

active

042975077

ABSTRACT:
Terephthalic acid with a high purity for direct polymerization with glycols is produced by oxidizing p-tolualdehyde with a gas containing molecular oxygen in water as a solvent in the presence of bromine ions in an oxidation reactor using zirconium as a reactor material.

REFERENCES:
patent: 3012038 (1961-12-01), O'Neill et al.
patent: 3708531 (1973-01-01), Croce et al.

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