METHOD AND CATALYST SYSTEM FOR PRODUCING AROMATIC CARBONATES

• Main Authors: PATEL, BEN, PURUSHOTAM, WHISENHUNT, DONALD, WAYNE, JR, SHALYAEV, KIRILL, VLADIMIROVICH, SOLOVEICHIK, GRIGORII, LEV
• Format: Patent
• Language: English; French
• Published: 30.08.2001
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL METHODS OF ORGANIC CHEMISTRY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having an effective amount of a cobalt source in the absence of a Group VIII B metal source. In various alternative embodiments, the carbonylation catalyst system can include at least one inorganic co-catalyst, as well as a halide composition and/or a base. La présente invention concerne un procédé et un système catalyseur permettant la production de carbonates aromatiques à partir de composés hydroxy aromatiques. Pour un mode de réalisation, le procédé consiste à prendre au moins un composé hydroxy aromatique et à le mettre en contact avec de l'oxygène et du monoxyde de carbone en présence d'un système catalyseur de carbonylation disposant d'une quantité effective de sources de cobalt en l'absence de source de métaux du Groupe VIII B. Pour d'autres modes de réalisation, le système catalyseur de carbonylation peut comporter au moins un cocatalyseur inorganique ainsi qu'une composition et/ou une base halogénure.