发明名称 |
PROCESS FOR PREPARING BISPHENOL A |
摘要 |
<p>A process for producing high-purity bisphenol A comprises reacting phenol with acetone in the presence of an acid catalyst to obtain a product mixture, removing the acid catalyst from the product mixture, thereby yielding a liquid mixture, treating the liquid mixture with a weakly basic ion-exchange resin having pyridyl groups as the exchange groups, and purifying the treated liquid mixture. The process does not cause any corrosion of equipment and any decomposition and discoloration of bisphenol A during distillation.</p> |
申请公布号 |
EP0329075(B1) |
申请公布日期 |
1992.09.02 |
申请号 |
EP19890102507 |
申请日期 |
1989.02.14 |
申请人 |
MITSUI TOATSU CHEMICALS, INC. |
发明人 |
IIMURO, SHIGERU;MORIMOTO, YOSHIO;KITAMURA, TAKASHI |
分类号 |
B01J27/10;C07B61/00;C07C27/00;C07C37/20;C07C37/82;C07C39/16;C07C67/00 |
主分类号 |
B01J27/10 |
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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