摘要
在高剪切混合乳化机搅拌下,采用Cr2O72-/Cr3+作媒质间接电合成对溴苯甲酸槽外反应的优选条件为:原料配比n(Cr2O72-):n(p-Br-C6H4-CH3)=1:3,C(H26O4)=7mol／L,反应温度120℃,反应时间45min,对溴苯甲酸反应收率为81.28％,纯度为99.71％。
Outside cell reaction of indirect electrosynthesis of p-bromobenzoic acid by using Cr2O72-/Cr3+ electrolytic medium in the emulsifying stirrer was studied.The optimum conditions of outside cell reaction were n(Cr2O72-):n (p-Br- C6H4-CH3) =1:3,concentration of sulfuric acid 7 mol/L,reaction temperature 120 ℃ and reaction time 45 min.Reaction yield of p-bromobenzoic acid was up to 81.28% with a purity of 99.71%.
出处
《河北化工》
2005年第1期19-20,25,共3页
Hebei Chemical Industry
