Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1984-01-04
1984-09-04
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568701, 568702, C07C 3924
Patent
active
044699000
ABSTRACT:
A process is disclosed for separating closely-boiling chlorinated phenolic compounds from other chlorinated and unchlorinated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over other related closely-boiling phenolics in the mixture. The preferentially-formed complex of one of the phenolics may then be isolated from the mixture and the complex decomposed to provide a product substantially enriched in, or substantially entirely composed of, one phenolic. The process is particularly suitable for resolving a mixture comprising phenol or cresol from their closely-boiling ortho-chlorinated derivatives, or a mixture of two isomeric chlorinated phenols or cresols or a mixture of closely-boiling mono- and dichlorinated phenols or cresols.
REFERENCES:
patent: 4366329 (1982-12-01), Raynold et al.
patent: 4429168 (1984-01-01), Leston
Sharpless et al., "Jour. Org. Chem", vol. 40, No. 9, (1975), 1252-1257.
Koppers Company Inc.
Lone Werren B.
Long Daniel J.
Zeh, Jr. Herbert J.
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