发明授权
- 专利标题： Process for separating p-benzoquinone from the reaction products of phenol oxidation as quinhydrone
- 专利标题（中）： 从苯酚氧化反应产物中分离对苯醌的方法为氢醌
-
申请号： US5570申请日： 1979-01-22
-
公开(公告)号： US4235790A公开(公告)日： 1980-11-25
- 发明人: Werner H. Muller , Dieter Freudenberger
- 申请人： Werner H. Muller , Dieter Freudenberger
- 申请人地址： DEX Frankfurt am Main
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX Frankfurt am Main
- 优先权： DEX2802863 19780124
- 主分类号： C07C50/04
- IPC分类号： C07C50/04 ; C07C27/00 ; C07C37/86 ; C07C39/08 ; C07C45/00 ; C07C46/10 ; C07C67/00
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.
公开/授权文献
- US6000626A Hand operated water sprayer and soap dispenser 公开/授权日：1999-12-14
信息查询
