申请人:UBE INDUSTRIES, LTD.
公开号:EP0832872A1
公开(公告)日:1998-04-01
A high purity diaryl carbonate is produced with a high efficiency by reacting carbon monoxide with an alkyl nitrite and/or an alkyl alcohol; reacting the resultant dialkyl oxalate with a hydroxyaryl compound, for example, phenol; decarbonylating the resultant diaryl oxalate to produce a diaryl carbonate and carbon monoxide; and collecting the diaryl carbonate from the decarbonylation reaction product mixture, the carbon monoxide produced in the decabonylation step being optionally reused for the production of the dialkyl oxalate.
将一氧化碳与亚硝酸烷基酯和/或烷基醇反应;将生成的草酸二烷基酯与羟基芳基化合物(例如苯酚)反应,可高效生产出高纯度碳酸二芳基酯;对生成的草酸二芳基酯进行脱羰基反应,生成碳酸二芳基酯和一氧化碳;从脱羰基反应产物混合物中收集碳酸二芳基酯,脱羰基步骤中生成的一氧化碳可选择重新用于生产草酸二烷基酯。