Separation and recovery of alkylated phenols

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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568756, 568762, C07C 3772, C07C 3770

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active

045475962

ABSTRACT:
A method is provided for separating alkylated phenols based on differences in their dissociation constants without the consumption of neutralizing acid or base. This is accomplished by selectively reacting the mixed alkylated phenol having the having dissociation constant to the salt form and isolating the salts from the mixture in an aqueous solution. The alkylated phenols are then recovered from the aqueous solution in unreacted form with an organic solvent. Essentially all solvents and solutions can be recycled.

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patent: 4101590 (1978-07-01), Sato et al.
patent: 4267391 (1981-05-01), Leston
patent: 4267392 (1981-05-01), Leston
patent: 4275246 (1981-06-01), Greco
patent: 4420643 (1983-12-01), Savides et al.

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