摘要
硝基苯电解合成对氨基苯酚(PAP)的试验表明,当槽电压为4.40V,电流效率达71.4%时,硝基苯转化率为97.6%,PAP收率达74%,直流电单耗为6.1kWh(kg·PAP)^(-1);合成的样品经高效液相色谱、红外和紫外光谱等分析,含量在96%以上,且无发现异构体和杂质峰.据此,进行了硝基苯电解合成PAP的经济分析.
The experimental result of preparing Para-aminophenol (PAP) by the electrolytic reduction of nitrobenzene shows that the conversion of nitrobenzene is 97.6%, the yield of PAP is 74.0% of theory, the cost of D C is 6.1kWh (kg·PAP)-1 when cell voltage is 4.4Volts throughout the run and the current efficiency is 71.4%. The title compond has been analyzed by high pressure liquid chromatograply, infraed spectrum, ultravioiet spectrum. The analysis show that the purity of PAP is higher than 96.0%, and there is not any isomer and impurity peak. According to the results, the economicreckoning of preparing PAP by the electrolytic reduction of Nitrobenzene was presented.
关键词
电化学反应
对氨基苯酚
经济分析
电解合成
Nitrobenzene, Electrochemical reaction, Para-Aminophenol, Synthetic test, Economie analysis
