Method and catalyst system for producing aromatic carbonates

Details Method and catalyst system for producing aromatic carbonates Method and catalyst system for producing aromatic carbonates

1999-04-29

2000-11-07

Ambrose, Michael G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbonate esters

558271, 558272, 558273, C07C 6800

Patent

active

061439142

ABSTRACT:
A method and catalyst system for economically producing aromatic carbonates from aromatic hydroxy compounds. 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 a catalytic amount of a combination of inorganic co-catalysts containing manganese and nickel; manganese and iron; manganese and chromium; manganese and cerium; manganese and europium; manganese, cerium, and europium; manganese, iron, and europium; or manganese and thorium. In various alternative embodiments, the carbonylation catalyst system can include an effective amount of a palladium source and an effective amount of a halide composition. Further alternative embodiments can include catalytic amounts of various other inorganic co-catalyst combinations.

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