Novel purification process

Details Novel purification process Novel purification process

1989-12-13

1991-02-12

Lone, Werren B.

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

Organic compounds

Oxygen containing

568748, 568749, C07C 3774, C07C 3768

Patent

active

049925997

ABSTRACT:
Crude phenol and also individual phenol fractions from tars or the hydrogenation of coal are purified from contaminating organic bases and sulfur compounds by treating the phenols with phthalic acid anhydride and optionally a quinone and distillation.

REFERENCES:
Mark, "Chemical Abstracts" vol. 89 (1978) 89:129251z.
Bridwell, "Chemical Abstracts" vol. 89 (1978) 89:129254c.
Hoeringklee, "Chemical Abstracts" vol. 102 (1985) 102:45616w.

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