化工进展Issue(11)：2719-2722,4.DOI:10.3969/j.issn.1000-6613.2013.11.033
4,4'-二羟基二苯砜合成新工艺的研究
A new process for preparation of 4,4'-dihydroxydiphenylsulfone
摘要
Abstract
A new process for synthesis of 4,4'-dihydroxydiphenylsulfone (BPS) by the sulfonation of phenol with concentration sulfuric acid followed by dehydration was developed. A new catalyst (naphthalene-2,6-disulfonic acid) and solvent system (mixed solvent of mesitylene-durene) were adopted to improve the yield and purity of BPS. The effects of type of solvent,weight ratio of mixed solvent,type and amount of catalyst on BPS yield,purity and isomer (2,4'-dihydroxydiphenylsulfone) ratio were investigated. The new process was as follow:To the reaction mixture of 100g mixed solvent of mesitylene-durene (the weight ratio 3∶1),5 g catalyst of naphthalene-2,6-disulfonic acid and 98.5 g phenol 51.2 g sulfuric acid was added dropwisely at 110 ℃. Then the reaction system was heated rapidly to the reflux temperature of 172 ℃ and maintained for 5h. The yield of product BPS reached 99.3% and the purity was 96.49%. The product yield of the process was high and the catalyst was relatively cheap,and the new process was easy to be commercialized.关键词
4,4'-二羟基二苯砜/均三甲苯/均四甲苯/2,6-萘二磺酸Key words
4,4'-dihydroxydiphenylsulfone/mesitylene/durene/naphthalene-2,6-disulfonic acid分类
化学化工引用本文复制引用
张天永,朱佳佑,李彬,姜爽,陈松,王树华..4,4'-二羟基二苯砜合成新工艺的研究[J].化工进展,2013,(11):2719-2722,4.基金项目
国家自然科学基金（21276187）、天津市应用基础与前沿技术研究计划（13JCQNJC05800）及精细化工国家重点实验室开放基 （）
