Process for purifying chlorinated aromatic hydrocarbons

Details Process for purifying chlorinated aromatic hydrocarbons Process for purifying chlorinated aromatic hydrocarbons

C - Chemistry, Metallurgy

07

C

C07C 25/02 (2006.01) C07C 17/12 (2006.01) C07C 17/38 (2006.01) C07C 17/386 (2006.01)

Patent

CA 2232457

The present invention relates to a purification process using distillation of chlorinated aromatic hydrocarbons from the chlorination of aromatic hydrocarbons in the presence of FeCl3. The distillation is carried out in the presence of the said FeCl3 after degassing of the reaction crude. The purified chlorinated aromatic compounds thus obtained can be used in the production of agrochemicals, dyes and nonflammable dielectric fluids.

La présente invention concerne un procédé de purification par distillation d'hydrocarbures aromatiques chlorés provenant de la chloration d'hydrocarbures aromatiques en présence de FeCl3, dans lequel la distillation est réalisée en présence dudit FeCl3 après dégazage du brut réactionnel. Les composés chlorés aromatiques purifiés ainsi obtenus sont utilisables pour la fabrication de produits agrochimiques, de colorants et de liquides diélectriques ininflammables.

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