| 摘要 |
The electrochemical conversion of phenol to hydroquinone has been improved by a combination of steps directed to effect removal of by-products and conversion of p-benzoquinone to hydroquinone as part of the process for the recovery of the hydroquinone product. These steps include first reducing residual p-benzoquinone to hydroquinone, followed by removal of tars and color bodies, vacuum distillation to condense the volume of the electrolyzed reaction mixture, and finally crystallizing the hydroquinone product out of the condensed distillation residue.
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