The Effect of the Preparation Conditions on the Catalytic Activity of Palladium in the System of Mechanically Pre-activated Salt K2PdCl4–C2H2–CH3OH

Preliminary mechanochemical activation of the K2PdCl4 salt forms a heterogeneous catalyst for the reaction of acetylene with methanol to form 1,1-dimethoxyethane and vinyl chloride. An increase in the duration of the palladium salt pre-treatment is accompanied by: (i) an increase in the surface concentration of active sites of the prepared catalyst, which leads to a rise in its catalytic activity; (ii) a monotonic increase in vinyl chloride selectivity. An increase in the reaction temperature has a beneficial effect on the selectivity of the reaction with respect to both observed products.