The main synthetic methods of o-phenylphenol were reviewed.The method and research status of dehydrogenation to o-phenylphenol after cyclohexane condensation reaction were discussed detailedly.

摘要介绍合成的几种主要工艺方法，对环己酮缩合法制的合成方法及研究状况进行详细阐述。

The separation of three-component system of cyclohexane,cyclo-hexene and benzene by extract rectification with a mixed solvent,comprising hexyl dicyanide and dimethyl acetylamine has been studied.

选用己二腈-二甲乙酰胺组成的混合溶剂，对环己烷、环己烯和组成的三元体系进行了萃取精馏。