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Selective formation of chloroethane by the hydrochlorination of ethene using zinc catalysts

Conte, Marco, Davies, Thomas, Carley, Albert F., Herzing, Andrew A., Kiely, Christopher J. and Hutchings, Graham J. 2007. Selective formation of chloroethane by the hydrochlorination of ethene using zinc catalysts. Journal of Catalysis 252 (1) , pp. 23-29. 10.1016/j.jcat.2007.09.002

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A detailed study of the hydrochlorination of ethene and higher alkenes using ZnCl2/SiO2 and ZnCl2/Al2O3 catalysts is described and discussed. Based on earlier observations that supported gold can be an active catalyst for both ethyne hydrochlorination and oxidation reactions, we initially investigated using supported gold as catalysts for the oxychlorination of ethene. However, we found that oxychlorination did not occur in the presence of oxygen and, furthermore, that the gold acted as a poison/inhibitor during the initial reaction period, with the underlying reaction being ethene hydrochlorination. Supported Zn2+ was found to be a very effective catalyst for this reaction. The hydrochlorination of higher alkenes occurred, with high selectivity to a range of relatively complex chlorinated hydrocarbon products at rates of ca. 10–13 mol/(kgcat h).

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Elsevier
ISSN: 0021-9517
Date of Acceptance: 9 September 2007
Last Modified: 26 Jan 2021 13:15

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