Method for producing dihydroxydiphenylsulfone isomer mixture
本发明提供一种制备含有2，4'-二羟基二苯砜的二羟基二苯砜异构体混合物的方法，包括在苯酚和硫酸或磺酸的存在下，加热4，4'-二羟基二苯砜或含有至少85重量％的4，4'-二羟基二苯砜的二羟基二苯砜异构体混合物。 The present invention provides a process for producing a mixture of dihydroxydiphenylsulfone isomers containing 2,4'-dihydroxydiphenylsulfone, the process comprising heating 4...
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| Main Authors | , , |
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| Format | Patent |
| Language | Chinese English |
| Published |
22.12.2004
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| Edition | 7 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | 本发明提供一种制备含有2，4'-二羟基二苯砜的二羟基二苯砜异构体混合物的方法，包括在苯酚和硫酸或磺酸的存在下，加热4，4'-二羟基二苯砜或含有至少85重量％的4，4'-二羟基二苯砜的二羟基二苯砜异构体混合物。
The present invention provides a process for producing a mixture of dihydroxydiphenylsulfone isomers containing 2,4'-dihydroxydiphenylsulfone, the process comprising heating 4,4'-dihydroxydiphenylsulfone or a mixture of dihydroxydiphenylsulfone isomers containing at least 85 wt.% of 4,4'-dihydroxydiphenylsulfone in the presence of phenol and sulfuric or sulfonic acid. |
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| AbstractList | 本发明提供一种制备含有2，4'-二羟基二苯砜的二羟基二苯砜异构体混合物的方法，包括在苯酚和硫酸或磺酸的存在下，加热4，4'-二羟基二苯砜或含有至少85重量％的4，4'-二羟基二苯砜的二羟基二苯砜异构体混合物。
The present invention provides a process for producing a mixture of dihydroxydiphenylsulfone isomers containing 2,4'-dihydroxydiphenylsulfone, the process comprising heating 4,4'-dihydroxydiphenylsulfone or a mixture of dihydroxydiphenylsulfone isomers containing at least 85 wt.% of 4,4'-dihydroxydiphenylsulfone in the presence of phenol and sulfuric or sulfonic acid. |
| Author | YAMAMOTO MICHIMASA OI SATSUO YANASE NORIO |
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| Snippet | 本发明提供一种制备含有2，4'-二羟基二苯砜的二羟基二苯砜异构体混合物的方法，包括在苯酚和硫酸或磺酸的存在下，加热4，4'-二羟基二苯砜或含有至少85重量％的4，4'-二羟基二苯砜的二羟基二苯砜异构体混合物。
The present invention provides a process for producing... |
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| Title | Method for producing dihydroxydiphenylsulfone isomer mixture |
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