发明名称 |
Economical purification of bisphenol A |
摘要 |
Process and related apparatus are disclosed for economically producing a very high quality bisphenol A product by a multistage crystallization process utilizing a new cross-flow wash design whereby a high purity wash phenol stream is fed to every washing stage, optionally also in combination with a modified stream flow/recycle design which avoids increased by product production and yield losses otherwise expected from processing increased volumes of wash phenol.
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申请公布号 |
US6806394(B2) |
申请公布日期 |
2004.10.19 |
申请号 |
US20030415428 |
申请日期 |
2003.09.29 |
申请人 |
STONE & WEBSTER, INC. |
发明人 |
EVITT STEVEN D.;PALMER DAVE P. |
分类号 |
C07C37/84;C07C39/16;(IPC1-7):C07C39/16 |
主分类号 |
C07C37/84 |
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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