摘要
研究优化电解还原对硝基苯胂酸(p-A)合成对氨基苯胂酸(p-ASA)的工艺条件.实验表明:硫酸浓度、添加剂量、反应温度、投料量等工艺参数对合成产率有显著影响.初步得出比较适宜的电解合成条件为:硫酸浓度10%(bymass,下同)、添加剂量1%(bymass)NaCl、反应温度80℃、投料量71.4g/L、电流密度10A·dm-2.在上述工艺条件下,电解合成产率可达65.8%.
The electrochemical reduction of p-nitrophenyl arsonit acid to p-aminobenzenearsenic acid was studied using controlled-current electrolysis. The results showed that the yield of p-arninobenzenearsenic acid was determinated by the following factors ： the concentrations of sulphuric acid, the amount of additive, temperature and the concentrations ofp-nitrophenyl arsenic acid. The optimum electrolytic conditions were obtained to be is 10% H2S04, 1% NaCI, 80 ℃, 25 g/350 mL p-nitrophenyl arsenic acid and 10 A·dm^-2. The yield of arsanilic acid could be reached 64.7% under the optimum electrolytic conditions.
出处
《电化学》
CAS
CSCD
北大核心
2010年第1期70-73,共4页
Journal of Electrochemistry
基金
国家基础研究重大项目前期研究专项基金项目(2003CCA01300)资助
关键词
对硝基苯胂酸
对氨基苯胂酸
电解还原
阿散酸
p-nitrophenyl arsonit acid
p-aminobenzenearsenie acid
electrolytic reduction
arsanilic acid
