摘要本文重，点对三氮化磷生产进行了介绍，此外就其原理，工艺和方法这三个方面展开了全面的比较。此举不仅对今后三氯化磷生产的研究有重要的参考意义，而且对其今后投入生产也打下了一定的基础，在设计工艺流程的过程中，对多种工艺进行了多方面的权衡并取百家之长，从而设计结果无论是在理论上，还是技术上都取得了较大的领先。此设计中含有生产的具体工艺流程，并对各个设备进行了简单设计，对主要设备反应釜的各个部件开展了精密的设计和详尽的计算，将并且衡量了反应过程中将要使用到的物料以及能量。反应釜设备设计的内容和步骤，塔设备的强度和稳定性计算。在工艺流程设计以及车间设计方面，采用AutoCAD来完成，并进行了绘制。三氯化磷是重要的化工原料，其在有机磷农药生产中发挥着着不可或缺的重要作用，当前工业化生产所使用的工艺方法是在以往的方法基础上慢慢改善所建立的，从三种老工艺方法中脱颍而出的三氮化磷底液法，此工艺完全能够在理论以及技术上达到市场所要求的标准，并且其生产工艺较其它工艺方法而言更为简便，这对于未来工业生产中三氯化磷的运用来说是极为关键的一点。Production process design of phosphorustrichloride with annual output of 20 000 tonGao KaiDirected by Associate professor Li Yan-LiAbstract This paper introduces the production of phosphorus trichloride,andcompares its reaction principle,production process and method.It provides anacademic and practical basis for the production and construction of phosphorustrichloride,and combines the advantages of various processes in the process flow,soas to give a design result that both the theoretical water level and technical level reachthe leading level.This design contains the specific process flow of production,and thesimple design of each equipment,the main equipment of the reactor of eachcomponent of the calculation and design,the reaction process of the material andenergy balance.Design content and steps of reactor equipment,calculation of strengthand stability of tower equipment.AutoCAD was used to design chemical process andworkshop,and drawing was done.Phosphorus trichloride is an important chemical raw material,which can play a greatpotential in the organophosphorus pesticide production,currently in use process isgradually improved,from the three stand out from the old process method ofphosphorus trichloride bottom liquid method,this method both in theory andtechnology can meet the demand of the market,and the production technology issimpler,this also gives phosphorus trichloride in future industrial development getbetter use of the stage.Key words Phosphorus trichloride;Synthesis;Chloride;Process design