Process for the removal of m-chlorotoluene from chlorotoluene mi

Details Process for the removal of m-chlorotoluene from chlorotoluene mi Process for the removal of m-chlorotoluene from chlorotoluene mi

1988-03-10

1989-05-02

Lone, Werren B.

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

Organic compounds

Halogen containing

570206, 570207, 570208, 570210, C07C 1738, C07C 2124

Patent

active

048270580

ABSTRACT:
m-Chlorotoluene is removed from chlorotoluene mixtures with a content of up to 10% by weight of m-chlorotoluene, with reference to the total amount of chlorotoluene in the mixture, by chlorinating a substantially toluene-free chlorotoluene mixture in the presence of a Friedel-Crafts catalyst and if appropriate a co-catalyst at from 0.degree. C. up to the boiling point of the mixture, until the content of m-chlorotoluene has decreased to a value of <1.0% by weight in the chlorotoluene mixture.

REFERENCES:
patent: 3655783 (1972-04-01), Bacha
patent: 4748287 (1988-05-01), Rohlk et al.

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