METHOD AND CATALYST SYSTEM FOR PRODUCING AROMATIC CARBONATES

摘要

A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds is disclosed. In one embodiment, the present invention provides a method of carbonylating aromatic hydroxy compounds by contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system that includes an effective amount of at least one Group 8, 9, or 10 metal source; an effective amount of at least one onium chloride salt; and an effective amount of a combination of inorganic co-catalysts comprising at least one lead source and at least one other metal source.