Phenolic antioxidant

Details Phenolic antioxidant Phenolic antioxidant

1983-05-04

1984-08-21

Lone, Werren B.

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

Organic compounds

Oxygen containing

568720, 568749, C07C 3784

Patent

active

044671199

ABSTRACT:
A process of purifying tris(1-hydroxy-3-methyl-6-tert. butyl phenyl) butane comprises crystallizing it from an aromatic hydrocarbon having 6 to 9 carbon atoms to produce a product containing said hydrocarbon and removing at least part of the hydrocarbon from the product by washing it with a liquid consisting essentially of at least one water miscible alcohol and water.

REFERENCES:
patent: 3196185 (1965-07-01), Ranson
patent: 3205189 (1965-09-01), Reed
patent: 3239484 (1966-03-01), Stark
patent: 4242527 (1980-12-01), Mark et al.
patent: 4319051 (1982-03-01), Suenobu et al.

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