发明授权
- 专利标题: Method for the continuous production of aromatic carbonates
- 专利标题(中): 连续生产芳香族碳酸酯的方法
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申请号: US09683832申请日: 2002-02-21
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公开(公告)号: US06596894B2公开(公告)日: 2003-07-22
- 发明人: Stephan Mathys Bouwens , Marcel Vieveen
- 申请人: Stephan Mathys Bouwens , Marcel Vieveen
- 主分类号: C07C6996
- IPC分类号: C07C6996
摘要:
The present invention provides a method for making aromatic carbonates. In this method, an aryl alcohol is reacted with a dialkyl carbonate in a reactor (e.g., a distillation column) to produce an arylalkyl carbonate and diaryl carbonate. In one embodiment, the method comprises: feeding to the top subsection of the reactive section of a distillation column, a first stream comprising an aryl alcohol and a catalyst, and feeding to the bottom subsection of the reactive section a second stream containing a dialkylcarbonate, wherein the temperature at the bottom of the column is between 220° C. and 240° C.
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