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Copper-catalyzed chlorination and condensation of acetylene and dichloroacetylene.
Chemosphere 40, 1297-1303 (2000)
The chlorination and condensation of acetylene at low temperatures is demonstrated using copper chlorides as chlorinated agents coated to model borosilicate surfaces. Experiments with and without both a chlorine source and borosilicate surfaces indicate the absence of gas-phase and gas-surface reactions. Chlorination and condensation occur only in the presence of the copper catalyst. C-2 through C-8 organic products were observed in the effluent; PCDD/F were only observed from extraction of the borosilicate surfaces. A global reaction model is proposed that is consistent with the observed product distributions. Similar experiments with dichloroacetylene indicate greater reactivity in the absence of the copper catalyst. Reaction is observed in the gas phase and in the presence of borosilicate surfaces at low temperatures. The formation of hexachlorobenzene is only observed in the presence of a copper catalyst. PCDD/F were only observed from extraction of the borosilicate surfaces. A global reaction model is proposed for the formation of hexachlorobenzene from dichloroacetylene.
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Acetylene; Dichloroacetylene; Chlorination; Condensation; Hexachlorobenzene; PCDD/F
Sprache
englisch
Veröffentlichungsjahr
2000
HGF-Berichtsjahr
0
ISSN (print) / ISBN
0045-6535
e-ISSN
1879-1298
Zeitschrift
Chemosphere
Quellenangaben
Band: 40,
Heft: 12,
Seiten: 1297-1303
Verlag
Elsevier
Verlagsort
Kidlington, Oxford
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Ecological Chemistry (IOEC)
PSP-Element(e)
FE 75177
Erfassungsdatum
2000-12-31