| abstract |
Catalysts for the oxychlorination of ethylene to 1,2-dichloroethane, comprising Cu and Mg compounds supported on alumina and having a copper content, expressed as Cu, of 2 to 8% by weight, characterized 5 because the atomic ratio of Mg / Cu is 1, 3 to 2, 5, with distribution of copper atoms more inside the catalyst particle than on the surface (layer with a thickness of 20-30 AA), and atoms of magnesium more on the surface (20-30 AA layer) than inside the particle, and because the specific surface area of the catalyst is 30 to 130 m2 / g. |