Catalyst composition and method for producing diaryl carbonates

• Main Authors: JOHNSON BRUCE FLETCHER, SOLOVEICHIK GRIGORII LEV, SHALYAEV KIRILL VLADIMIROVICH, PRESSMAN ERIC JAMES
• Format: Patent
• Language: English
• Published: 10.04.2001
• Edition: 7
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; GENERAL METHODS OF ORGANIC CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

Hydroxyaromatic compounds such as phenol are carbonylated with oxygen and carbon monoxide in the presence of a catalyst system comprising a Group VIIIB metal, preferably palladium; an alkali metal or alkaline earth metal halide, preferably sodium bromide; and at least one sulfone such as sulfolane....