精馏法在分离混合二氯苯中的应用

介绍了精馏法分离混合二氯苯工艺操作,对精馏过程中发生的异常情况进行讨论,并提出了相关的解决措施。

对甲基苯胺-邻磺酸合成新工艺

研究了以对甲基苯胺为原料 ,利用液相烘焙磺化法合成甲基苯胺 -邻磺酸的新工艺 ,该工艺具有反应温度低 ,反应彻底 ,转化率高 ,溶剂可回收利用 ,三废少的特点。讨论了各种工艺条件对反应的影响 ,找到了最佳工艺条件 ,在此条件下产品收率在 90 %左右 ,制得的产品纯度在 98%以上 。

Selection of extractive agent for mixture chlorobenzene and measurement of VLE data for m-dichlorobenzene-p-dichlorobenzene -o-dichlorobenzene -diphenylamine

Extractive agents of extractive distillation separation for mixtures of dichlorobenzene were analyzed and compared, gas-liquid equilibrium data （VLE data） was measured for dichlorobenzene and diphenylamine, the appropriate extractive agent was selected by relatively volatility, the temperature was studied on the effect of extractive separation. VLE data was measured for dichlorobenzene, the parameters were simulated in Wilson equation. The infinite dilute activity coefficient of dichlorobenzene in diphenylamine were measured by chromatogram apparatus, the model parameters were correlated by the single parameter method for dichlorobenzene and diphenyl -amine, VLE data of m-dichlorobenzene-p- dichlorobenzene -o-dichlorobenzene-diphenylamine system was measured and calculated by six part model parameters. The results of correlation and experiment were provided a basis for study of extractive distillation simulation and experiment in this work.