期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
间接电合成邻溴苯甲醛
-
1. 河北师范大学化学与材料科学学院, 河北石家庄050016;
2. 石家庄学院化工学院, 河北石家庄050035;
3. 河北行政学院工会, 河北石家庄050031 -
DOI：
Synthesis of o2bromobenzaldehyde by Indirect Electrooxidation
摘要/Abstract
采用间接电合成法,以Ce4+/Ce3+为媒质合成了邻溴苯甲醛.在隔膜电解槽中Ce3+电氧化的最佳条件是c(Ce3+)=0.6mol/L,c(H2SO4)=0.5mol/L,电流密度200A/m2,电量1.0F/mol,Ce4+的电解收率90.9%;槽外合成邻溴苯甲醛的最佳条件是n(Ce4+):n(邻溴甲苯)=4:2,c(H2SO4)=0.5mol/L,反应温度80℃,邻溴苯甲醛反应收率82.3%.
The Ce3+ sulfuric acid solution is elect rooxided to Ce4+ in a membrane elect rolytic cell by indirect elect rooxidation method.The optimum conditions of elect rolysis are as fellows:Ce3+concent ration is 0.6 mol/L,sulfuric acid concent ration is 0.5 mol/L,current density is 200 A/m2,electric quantity is 1.0F/mol.On the con-dition elect rolytic yield is 90.9%.The optimum conditions of out side cell reaction are as fellows:n(Ce4+):n(o-Br-Ph-CH3)=4:2,sulfuric acid concent ration is 0.5 mol/L,temperature is 80℃.The reaction yield of o-bro-mobenzahyde is 82.3%.