发明名称 |
Method for preparing cycloalkanone |
摘要 |
<p>A system and a method for preparing cycloalkanone are provided. The method includes the steps of: (a) oxidizing cycloalkane to form a mixture containing ketone, alcohol and unreacted cycloalkane; (b) adding to the mixture alkali metal hydroxide and/or alkali metal carbonate to form a first mixed solution; (c) separating the first mixed solution into a first organic phase solution and a first aqueous phase solution; and (d) extracting the first organic phase solution by water to obtain a second organic phase solution and a second aqueous phase solution; and (e) distilling the second organic phase to separate out cycloalkanone. The method performs phase separation after a mixing step, and then performs water extraction, thereby effectively lowering the contents of the metal salts in the organic phases. Compared with acid-water extraction, the method not only provides better cooling effects but also reduces equipment corrosion, and therefore has the advantage of decreasing the need for sewage treatments.</p> |
申请公布号 |
EP2110371(A1) |
申请公布日期 |
2009.10.21 |
申请号 |
EP20090158154 |
申请日期 |
2009.04.17 |
申请人 |
CHINA PETROCHEMICAL DEVELOPMENT CORPORATION |
发明人 |
TSAI, YAU-CHING;CHOU, CHIH-CHUNG;LIN, CHIN-HISANG |
分类号 |
C07C45/33;C07C45/80;C07C49/403 |
主分类号 |
C07C45/33 |
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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