| abstract |
The invention provides a method for preparing hydroquinone with a mixture of cyclohexanol/cyclohexanone as a raw material. The method uses a mixture of cyclohexanol/cyclohexanone as a raw material, and does not use hydrogen as a hydrogen source but utilizes a catalyst to convert cyclohexanol The hydrogen on the alcohol and cyclohexanone is partially transferred to p-benzoquinone to synthesize hydroquinone, while cyclohexanol and cyclohexanone are partially converted into phenol, and the separated phenol is used as a raw material to undergo oxidation reaction to obtain p-benzoquinone, which is then combined with Unreacted cyclohexanol and cyclohexanone undergo a hydrogen transfer reaction to synthesize hydroquinone, thereby realizing the cycle of phenol and p-benzoquinone in the whole process, and finally realizing the comprehensive utilization of cyclohexanol/cyclohexanone mixture, that is, relatively The cheap cyclohexanol/cyclohexanone mixture is used as raw material to prepare high value-added hydroquinone. |