N,N-二甲基苯胺法与三乙胺法合成亚磷酸三乙酯工艺路线对比  

Comparison of Process Routes for Synthesis of Triethyl Phosphite by N,N-Dimethylaniline Method and Triethylamine Method

作　　者：罗朝林 曹海龙 孙灵栋[2] Luo Chaolin;Cao Hailong;Sun Lingdong(Hubei Guirenxi Chemical Technology Co.,Ltd.,Jingzhou 434001,China;Newtianjin Technology&Development Co.,Ltd.,Tianjin 300193,China)

机构地区：[1]湖北癸人僖化工科技有限公司,湖北荆州434001 [2]天津市新天进科技开发有限公司,天津300193

出　　处：《山东化工》2024年第6期33-37,41,共6页Shandong Chemical Industry

摘　　要：对N,N-二甲基苯胺或三乙胺作缚酸剂,合成亚磷酸三乙酯的两种工艺的原理、流程、原材料动力消耗、物料平衡、生产环境以及影响工艺各工序因素、三废产生情况及治理后的效果,环境污染案例以及主要设备作了详细的介绍。两者对比结果表明:N,N-二甲基苯胺工艺收率低、质量差、产污多、工艺中不凝氨气直接排放污染环境,副产氯化铵使用有风险,废水处理难度大,对水生作物有危害,对水体环境产生长期不良影响。三乙胺法具有收率高、产污少、工艺中无废气产生,副产氯化钠能循环使用,污水能处理,工艺连续化,设备占地面积少,操作人员少等优点。In this paper,the principle,process,raw material power consumption,material balance,production environment and influencing factors of each process,the generation of wastes and the effect after treatment,environmental pollution cases and main equipment of the two processes of synthesizing triethyl phosphite with N,N-dimethylaniline or triethylamine as acid binding agent are introduced in detail.The comparison results show that the N,N-dimethylaniline process has low yield,poor quality,and more pollution.The non-condensable ammonia gas in the process is directly discharged to pollute the environment.The by-product of ammonium chloride is risky,and the wastewater treatment is difficult.It is harmful to aquatic crops and has long-term adverse effects on the water environment.The triethylamine method has the advantages of high yield,less pollution,no waste gas in the process,recycling of sodium chloride by-product,sewage treatment,continuous process,less equipment area and fewer operators.

关 键 词：亚磷酸三乙酯 合成 三乙胺 N N-二甲基苯胺 

分 类 号：TQ206[化学工程—有机化工]