| abstract |
In the process for producing an aromatic carbonate from an aromatic hydroxy compound, CO and O 2 in the presence of a quaternary salt and a base using a platinum metal catalyst and a cocatalyst, supported catalysts are advantageously used which, in the reactive state (i), a platinum metal, a platinum metal Halide or a platinum metal halide complex compound and (ii) a cocatalytically active metal compound from groups IB, IIB, IIIA, IIIB, IVA, IVB, VB, VIB, VIIB, the iron group (atomic numbers 26-28) or the rare earth metals ( Atom numbers 58-71) of the Periodic Table of the Elements (Mendeleev), each in an amount of 0.01-15% by weight, calculated as metal and based on the total weight of the catalyst. |