【摘要】 研究了臭氧氧化法生产苯二酚的可行性,并对苯酚的Fe2+/O3体系反应工艺条件进行了初步探索,得到了最佳反应条件:用硫酸亚铁做催化剂,反应温度35℃,pH值为3,臭氧吹入速度为150L/h,反应20 min时,苯二酚收率可达到23.5%。实验发现,pH在酸性条件下能够有效控制臭氧的氧化能力,有利于苯二酚的生成;反应温度对反应产物影响极大,温度低于20℃有利于对苯二酚的产生,温度在25℃到40℃之间有利于邻苯二酚的生成,间苯二酚在45℃以下均可少量生成。更多还原

【Abstract】 Studies had shown the production of dihydroxyhenzene oxidation by ozone feasibility and a preliminary exploration of phenol in the Fe2+/O3 system process conditions,and gotten the best reaction conditions: with ferrous sulfate as catalyst and reaction temperature 35℃,pH=3,ozone blowing speed of 150L/h,20min reaction time,conversion rate could reach 23.5%.Study found,pH value,in acidic conditions,could effectively control the ozone oxidation,be conducive to the formation of dihydroxyhenzene.Reaction temperature had greatly influence on the reaction products,the temperature below 20℃ was conducive to the formation of hydroquinone,the temperature between 25℃ to 40℃,was conducive to the formation of catechol,and resorcinol were produced under 45℃.更多还原