| abstract |
The present invention provides the heterogeneous catalysis for realizing high activity/high selectivity, is provided in particular in being suitable to being manufactured the catalyst and catalyst system of the oxychlorination of 1,2 dichloroethanes by ethene.There is provided a kind of heterogeneous catalysis and comprising the heterogeneous catalysis and with spherical, cylindric or hollow cylindrical diluent 1, the catalyst for producing system of 2 dichloroethanes, the catalyst is characterised by, it is that the heterogeneous catalysis that load forms is carried out on porous carrier, and the integrated value of caused hysteresis is less than 19% relative to the total mark value of adsorption isotherm between the adsorption isotherm and desorption isotherm of gas adsorption method. |