发明名称 |
Reactive rectification |
摘要 |
A process for producing polycarbonate is disclosed. Accordingly a pre-reaction mixture containing a bis(hydroxyaryl) compound and a diaryl carbonate is formed and introduced through the top of a reactive rectification column under condition calculated to bring about a reaction. The resulting hydroxyaryl is eliminated and diaryl carbonate in vapor form is introduced at the bottom of the reactive rectification column.
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申请公布号 |
US2002099163(A1) |
申请公布日期 |
2002.07.25 |
申请号 |
US20010934029 |
申请日期 |
2001.08.21 |
申请人 |
JOHN GERALD;DIKOW EDMUND;MENDOZA-FROHN CHRISTINE;RONGE GEORG;BACHMANN ROLF;GOTTSCHALK LUTZ;PREIN MICHAEL |
发明人 |
JOHN GERALD;DIKOW EDMUND;MENDOZA-FROHN CHRISTINE;RONGE GEORG;BACHMANN ROLF;GOTTSCHALK LUTZ;PREIN MICHAEL |
分类号 |
B01D3/00;C08G64/20;C08G64/30;(IPC1-7):C08G64/00 |
主分类号 |
B01D3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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