Complex formed to separate nitrated phenolic compounds from othe

Details Complex formed to separate nitrated phenolic compounds from othe Complex formed to separate nitrated phenolic compounds from othe

1984-02-21

1984-10-23

Lone, Werren B.

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

Organic compounds

Oxygen containing

568774, 568780, 568784, C07C 7932

Patent

active

044790198

ABSTRACT:
A process is disclosed for separating nitrated phenolic compounds from other nitrated and unnitrated 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 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 ortho-nitrated derivatives, or a mixture of two isomeric nitrated phenols or cresols or a mixture of mono-and dinitrated phenols or cresols.

REFERENCES:
patent: 4267389 (1981-05-01), Leston
patent: 4267390 (1981-05-01), Leston
patent: 4267391 (1981-05-01), Leston
patent: 4267392 (1981-05-01), Leston
patent: 4447654 (1984-05-01), Leston
patent: 4447658 (1984-05-01), Leston

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