发明授权
- 专利标题: Process for the continuous preparation of diaryl carbonates
- 专利标题(中): 连续制备碳酸二芳基酯的方法
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申请号: US379384申请日: 1995-01-27
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公开(公告)号: US5498742A公开(公告)日: 1996-03-12
- 发明人: Hans-Josef Buysch , Carsten Hesse , Johann Rechner , Reinhard Schomacker , Paul Wagner , Dieter Kaufmann
- 申请人: Hans-Josef Buysch , Carsten Hesse , Johann Rechner , Reinhard Schomacker , Paul Wagner , Dieter Kaufmann
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX4403075.4 19940202
- 主分类号: B01J31/02
- IPC分类号: B01J31/02 ; C07B61/00 ; C07C68/00 ; C07C68/08 ; C07C69/96
摘要:
The invention relates to a process for the continuous preparation of diaryl carbonates by reaction of an aromatic hydroxyl compound with carbon monoxide and oxygen in the presence of a catalyst containing a noble metal of group VIIIb of the Periodic Table of the Elements, a quaternary salt, a cocatalyst and a base. The catalyst is activated by treatment with carbon monoxide in the liquid phase. The reaction water is removed by excess reaction gas.
公开/授权文献
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