发明名称 |
METHOD FOR THE PRODUCTION OF BIS(4-HYDROXYARYL)ALKANES |
摘要 |
<p>A process for producing bis(4-hydroxyaryl)alkane is disclosed. The process comprise in sequence the steps of (a) passing inert gas through a melt at 150 to 230° C. that contains bis(4-hydroxyaryl)alkane and other aromatic hydroxy compounds, under conditions designed to remove said other aromatic hydroxy compounds from said melt and to obtain a stream of inert gas that contains said other aromatic hydroxy compounds (b) condensing the stream obtained in (a) to remove said other aromatic hydroxy compound, and to obtain a stream of inert gas, and (c) purifying and compressing the stream of inert gas obtained in (b), and recycling to step (a).</p> |
申请公布号 |
EP1121339(B1) |
申请公布日期 |
2003.01.29 |
申请号 |
EP19990947458 |
申请日期 |
1999.10.05 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
KUEHLING, STEFFEN;LANZE, ROLF;NEUMANN, RAINER;HEYDENREICH, FRIEDER;VAN OSSELAER, TONY |
分类号 |
C07C37/70;C07C37/00;C07C39/16;(IPC1-7):C07C39/16 |
主分类号 |
C07C37/70 |
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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