title: Chlorination and thermal degradation of 2-chlorodibenzodioxin and dibenzofuran by CuCl2 or CuCl at 350 degrees C.
abstract: Chlorination and thermal degradation of 2-chlorodibenzodioxin and dibenzofuran were investigated using sealed tubes at 350 degrees C in the presence of CuCl(2) or CuCl. Twelve organic species, including polychlorobenzenes, were identified and quantified as a function of residence time. Time behaviours of PCDDs and PCDFs regarding destruction processes were compared. The formation of polychlorobenzenes from the thermal heterogeneous degradation of PCDDs was only a minor pathway but it could contribute to the good linear correlation observed between the concentration of polychlorobenzenes and those of PCDD/Fs in the emissions of municipal solid waste incinerators.
authors.affiliation: Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS-USTL 8522, 59 650 Villeneuve d'Ascq, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Visez
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Sawerysyn
mesh_terms: D001572:Benzofurans / Q000737:chemistry*; D002245:Carbon Dioxide / Q000737:chemistry; D002722:Chlorobenzenes / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins / Q000737:chemistry*; D054879:Halogenation; D006358:Hot Temperature; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives / Q000737:chemistry
chemical_list: D001572:Benzofurans; D002722:Chlorobenzenes; D000072338:Dibenzofurans, Polychlorinated; D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins; D002245:Carbon Dioxide; D003300:Copper; C028419:cuprous chloride; C031294:chlorobenzene; C014402:2-chlorodibenzofuran; C027643:2-chlorodibenzo-4-dioxin; C029892:cupric chloride