“ALCOHOLYSIS PROCESS, PROCESSES FOR THE PRODUCTION OF DIALKILCARBONATES, DIARILCARBONATE AND ALKYLARILCARBONATE, AS WELL AS A PROCESS TO REACTIVATE A WASTE SOLID ALCOHOLISM CATALYST”

摘要

alcohololysis process, processes for the production of dialkylcarbonates, diarylcarbonate and alkylarylcarbonate, as well as process for reactivating a spent solid alcohololysis catalyst processes for alcohololysis, including transesterification and / or disproportionation of reagents are disclosed. the alcohololysis process may include feed reagents and a trace amount of soluble organometallic compound to a reactor comprising a solid alcoholysis catalyst, wherein each of the soluble organometallic compound and the solid alcoholysis catalyst independently comprise a group ii element to the group vi, which can be the same element in various modalities. As an example, diphenylcarbonate can be continuously produced by transesterification over a solid catalyst followed by disproportionation, where a trace amount of soluble organometallic compound is fed into the transesterification reactor. Also disclosed is a process for reactivating a spent solid alcoholysis catalyst as a useful catalyst for transesterification and / or disproportion, the process including removal of polymeric materials deposited on the catalyst and the resumption of catalytically active metals in the solid catalyst.