Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1979-10-12
1981-08-25
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C07C 5142
Patent
active
042861012
ABSTRACT:
Preparation of terephthalic acid by oxidizing p-xylene with molecular oxygen in an acetic acid solvent in the presence of a catalyst containing at least one heavy metal and bromine. Preparation of terephthalic acid of high purity accompanied by low level of combustion of the acetic acid solvent can be achieved by
REFERENCES:
patent: 3859344 (1975-01-01), Shigeyasu et al.
Harada Sigeki
Hashizume Hiroshi
Mitsubishi Chemical Industries Ltd.
Siegel Alan
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