<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The main factors influencing the selectivity of chlorophenols synthesis were described. The loss of raw materials and the composition of wastes obtained in a conventional technology of 2,4-D production based on 2,4-dichlorophenol (2,4-DCP) of the 89% purity were presented. The influence of some homogenous catalysts on the selectivity of 2,4-dichlorophenol obtained in phenol and chlorine reaction was examined. Using the combined catalyst enables to chlorinate selectively the monochlorophenols to 2,4-DCP without an undesirable increasing of the 2,6-dichlorophenol and 2,4,6-trichlorophenol contents. The catalyst transformations during the reaction of phenol chlorination were investigated and the method of its elimination after the reaction was elaborated.</p></abstract>

The main factors influencing the selectivity of chlorophenols synthesis were described. The loss of raw materials and the composition of wastes obtained in a conventional technology of 2,4-D production based on 2,4-dichlorophenol (2,4-DCP) of the 89% purity were presented. The influence of some homogenous catalysts on the selectivity of 2,4-dichlorophenol obtained in phenol and chlorine reaction was examined. Using the combined catalyst enables to chlorinate selectively the monochlorophenols to 2,4-DCP without an undesirable increasing of the 2,6-dichlorophenol and 2,4,6-trichlorophenol contents. The catalyst transformations during the reaction of phenol chlorination were investigated and the method of its elimination after the reaction was elaborated.

Technological aspects of the synthesis of 2,4-dichlorophenol

Institute of Industrial Organic Chemistry, (IPO), ul. Annopol 6, 02-236 Warszawa, Poland

Polish Journal of Chemical Technology

{"article-title":"Technological aspects of the synthesis of 2,4-dichlorophenol"}

The main factors influencing the selectivity of chlorophenols synthesis were described. The loss of raw materials and the composition of wastes obtained in a...

Technological aspects of the synthesis of 2,4-dichlorophenol

Publié en ligne: 19 juin 2009

Pages: 21 - 30

DOI: https://doi.org/10.2478/v10026-009-0019-9

Mots clés
2,4-dichlorophenol, chlorination, catalyst, dioxine, 2,4-dichlorophenoxyacetic acid

This content is open access.

Technological aspects of the synthesis of 2,4-dichlorophenol

Publié en ligne: 19 juin 2009

Pages: 21 - 30

DOI: https://doi.org/10.2478/v10026-009-0019-9

Mots clés2,4-dichlorophenol, chlorination, catalyst, dioxine, 2,4-dichlorophenoxyacetic acid

This content is open access.

Mots clés
2,4-dichlorophenol, chlorination, catalyst, dioxine, 2,4-dichlorophenoxyacetic acid