Purified para-cumylphenol

Details Purified para-cumylphenol Purified para-cumylphenol

1991-01-25

1992-02-25

Manoharan, Virginia

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 36, 203 37, 203 91, 203DIG6, 568744, 568756, B01D 310, B01D 334, C07C 3774

Patent

active

050910582

ABSTRACT:
Method of preparing para-cumylphenol including reacting an excess of phenol with alpha-methylstyrene by the slow addition of alpha-methylstyrene to a 50% to 200% molar excess of phenol at a temperature from about 80.degree. C. to about 90.degree. C. in the presence of an acid catalyst and thereafter maintaining the temperature at about 95.degree. to about 100.degree. C. to obtain a crude cumylphenol reaction product containing acid derived from the catalyst, and distilling the reaction product in the presence of an amount of base sufficient to neutralize the acid therein.

REFERENCES:
patent: 2423802 (1947-07-01), Slotterbeck et al.
patent: 2432356 (1947-12-01), Underwood
patent: 2728795 (1955-12-01), Armstrong et al.
patent: 2750424 (1956-06-01), Armstrong et al.
patent: 2750426 (1956-06-01), Armstrong et al.
patent: 2769844 (1956-11-01), Joris
patent: 4267379 (1981-05-01), Austin et al.
patent: 4351967 (1982-09-01), Nishimura et al.
patent: 4906791 (1990-03-01), Imanari et al.

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