发明名称 |
Process for separating p-benzoquinone from the reaction products of phenol oxidation as quinhydrone |
摘要 |
A process for separating p-benzoquinone as quinhydrone from the reaction solution obtained in the oxidation of phenol with oxygen in the presence of copper salts and of nitriles as the solvent, which comprises suspending and/or dissolving solid hydroquinone in this reaction solution, precipitating the p-benzoquinone contained therein as quinhydrone and separating it from the reaction solution.
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申请公布号 |
US4235790(A) |
申请公布日期 |
1980.11.25 |
申请号 |
US19790005570 |
申请日期 |
1979.01.22 |
申请人 |
HOECHST AG |
发明人 |
FREUDENBERGER, DIETER;MULLER, WERNER H |
分类号 |
C07C50/04;C07C27/00;C07C37/86;C07C39/08;C07C45/00;C07C46/10;C07C67/00;(IPC1-7):C07C46/10 |
主分类号 |
C07C50/04 |
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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