对氯苯酚碱解制备对苯二酚  

The Process for Synthesis of Hydroquinone from p-chlorophenol

作　　者：方卫东[1] 黄杰军[1] 王芳[2] 王玉霜[1] 

机构地区：[1]江苏扬农化工集团有限公司,江苏扬州225009 [2]扬州工业职业技术学院,江苏扬州225127

出　　处：《广东化工》2015年第17期62-63,共2页Guangdong Chemical Industry

摘　　要：文章提出一种以负载型固体碱(KOH/Zr O2)催化对氯苯酚与氢氧化钾碱解制备对苯二酚的工艺。通过正交实验考察了碱浓度、反应时间、原料摩尔配比、反应温度等影响对苯二酚收率的因素,确定最优工艺条件为:碱浓度40%,反应时间10 h,反应温度215℃,氢氧化钾与对氯苯酚摩尔配比为7∶1,对苯二酚收率88.5%。In the paper, the synthesis of hydroquinone reacting from p-Chlorophenol was presented with KOH/ZrO2 as catalyst. The key effects of process parameters for product, such as potassium hydroxide concentration was 40 %, the reaction time is 10 hours, the reaction temperature is 215℃, molar ratio of potassium hydroxide and p-Chlorophenol is 7 ： 1, and the yield of hydroquinone was about 88.5 %.

关 键 词：对氯苯酚 碱解 对苯二酚 

分 类 号：TQ243.3[化学工程—有机化工]