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Chemistry for Sustainable Development

2009 year, number 4

Catalytic Dehydrochlorination of 1,2-Dichloroethane to Vinyl Chloride on Individual Oxides and Two-Component Silicate Catalysts

A. S. Shalygin, L. M. Koval, L. V. Malysheva, N. S. Kotsarenko, E. A. Paukshtis
Keywords: catalytic dehydrochlorination, 1,2-dichloroethane, vinyl chloride, oxide catalysts
Pages: 423-428


Catalytic dehydrochlorination of 1,2-dichloroethane on a series of two-component silicate catalysts with regularly changing acid-base properties (Al2O3/SiO2, Ga2O3/SiO2, ZiO2/SiO2, BeO/SiO2, Y2O3/SiO2) and on oxides (γ-Al2O3, MgO) is investigated in a flow set-up at a temperature within the range 250-450 оC. It is established that the degree of 1,2-dichloroethane transformation into vinyl chloride is determined by the strength of Lewis acid centres. It is shown that catalyst deactivation is due to the formation of 1,3-dichlorobutene-2.