Method of decolorizing mixtures of T-butyl alkylphenols with N-(

Details Method of decolorizing mixtures of T-butyl alkylphenols with N-( Method of decolorizing mixtures of T-butyl alkylphenols with N-(

1981-07-20

1982-10-26

Lone, Werren B.

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

Organic compounds

Oxygen containing

568757, 568749, 568758, 568759, C07C 3768

Patent

active

043563309

ABSTRACT:
A method of eliminating color-causing impurities in mixtures of t-butyl alkylphenols by treatment with N-(2-hydroxyethyl)oxazolidine at 90.degree. C. and at atmospheric pressure is described. These phenols are used as peroxide inhibitors in polyoxyalkylene glycols for polyurethane foams. Discoloration of the polyol occurs if the phenol mixture is not treated with N-(2-hydroxyethyl)oxazolidine. The t-butyl alkylphenol mixture is derived from an alkylphenol made over an acid catalyst.

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Abram, J. C., et al., "Mechanism of Color Removal by Ion Exchange Resins", Sucr. Belge/Sugar Ind. Abstr., vol. 90, No. 11, 1971, pp. 525-532.
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