Purification of 3,5-dialkylphenols

Details Purification of 3,5-dialkylphenols Purification of 3,5-dialkylphenols

1975-06-26

1977-09-06

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260624A, C07C 3722, C07C 3906

Patent

active

040468186

ABSTRACT:
A 3,5-dialkylphenol having alkyl groups that are primary or secondary and that have a sum total of carbon atoms greater than two is separated from a mixture which also contains other dialkylphenols and mono-alkylphenols. The mixture is subjected to a selective sulfonation in order that all the compounds in the mixture, except the 3,5-dialkylphenol, are sulfonated. Then, the unsulfonated 3,5-dialkylphenol and the sulfonated compounds are separated, and the purified 3,5-dialkylphenol is recovered.

REFERENCES:
patent: 2327312 (1943-08-01), Luten et al.
patent: 2732393 (1956-01-01), Hardy
patent: 3159685 (1964-12-01), Bradley et al.
patent: 3401205 (1968-09-01), Yoon

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