ISOMERIZATION PROCESS OF MONO OR DICHLORO-PHENOLS
The invention relates to a process for isomerizing monochlorophenols or dichlorophenols in which one or more monochlorophenol or dichlorophenol is passed in the gas phase over a zeolite catalyst. In particular, the invention relates to a process for preparing 3-chlorophenol by isomerizing 2-chloroph...
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| Format: | Patent |
| Sprache: | eng ; ger |
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| Zusammenfassung: | The invention relates to a process for isomerizing monochlorophenols or dichlorophenols in which one or more monochlorophenol or dichlorophenol is passed in the gas phase over a zeolite catalyst. In particular, the invention relates to a process for preparing 3-chlorophenol by isomerizing 2-chlorophenol and/or 4-chlorophenol and to a process for preparing 2,5-dichlorophenol by isomerizing 2,4-dichlorophenol using said method. |
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