Catalysts for oxychlorination of ethylene to 1,2-dichloroethane, comprising
compounds of copper and magnesium supported on alumina, in which the
copper, expressed as metal, is present in an amount of 7 to 12% by weight
and the Mg/Cu ratio is 0.05 to 1, and wherein the ratio between the
concentration of copper provided by the Al/Cu ratio at the surface and
that provided by the Al/Cu ratio in the entire particle of the catalyst is
from 0.8 to 1.3.
