3，4-二氯硝基苯的合成工艺研究第一章：绪论..................................................................................................................................21.1产品简介.............................................................................................................................21.2国内外发展状况.................................................................................................................41.2.1国内外生产状况......................................................................................................41.2.2国内外合成路线......................................................................................................6第二章：实验部分..........................................................................................................................82.1以邻二氯苯为原料制备3,4二氯硝基苯的主要流程.......................................................82.2实验所需原料、仪器设备及实验装置.............................................................................82.3制备3,4-二氯硝基苯的具体实验步骤............................................................................132.4硝化反应的主要影响因素及实验的正交设计...............................................................142.5实验中原料的具体用量...................................................................................................152.6反应完毕后分离有机相与混酸.......................................................................................172.7产物重结晶及精制...........................................................................................................172.7.1用无水乙醇重结晶原理........................................................................................172.7.2产物精制................................................................................................................172.8薄层色谱定性检验产物及检验结果...............................................................................182.8.1薄层色谱的原理及检验方法................................................................................182.8.2产物用薄层色谱检验的结果................................................................................212.9实验中-二氯硝基苯的理论值、实验值及产率..............................................................22第三章：结论................................................................................................................................23第四章：参考文献........................................................................................................................25第五章：致谢................................................................................................................................27第2页共33页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共33页摘要：本文阐述了3,4-二氯硝基苯的理化性质、毒理学特性及环境生态安全性、主要用途，发展现状及发展趋势，着重研究了以邻二氯苯为原料制备3,4-二氯硝基苯的合成工艺，讨论反应时间、反应温度、物料比例对实验结果的影响，以优化实验工艺。关键词：邻二氯苯，3,4-二氯硝基苯，硝化Abstract：Thisthesisdescribesthephysicalandchemicalproperties,toxicologicalandeco-toxicologicalprofiles,application，thedevelopmentofthecurrentsituationandthedevelopmentofthetrendofthe3,4-dichloro-nitrobenzene,focusedonresearchingthesynthesisprocessof3,4-...
