苯二亚甲基二异氰酸酯生产过程专利技术分析  

Analysis of China patent technology for xylylene diisocyanate production

作　　者：毛丽萍[1] 王伟[1] 王东亮 孟文亮 李晓明 李贵贤[1] MAO Li-ping;WANG Wei;WANG Dong-liang;MENG Wen-liang;LI Xiao-ming;LI Gui-xian(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Yinguang Juyin Chemical Co.,Ltd.,Baiyin 730900,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]甘肃银光聚银化工有限公司,甘肃白银730900

出　　处：《应用化工》2020年第11期2926-2931,共6页Applied Chemical Industry

基　　金：甘肃省科技重大专项计划项目(18ZD2GD014)。

摘　　要：苯二亚甲基二异氰酸酯(XDI)是生产高折光率、优良抗冲性和耐热性聚氨酯光学材料的重要原料。综述了XDI的生产现状、专利分布和技术研究现状,系统梳理了成盐光气化、直接光气化、气相光气化和固体光气化等制备方法的技术现状、存在的问题和解决途径。非光气化工艺仍处于实验室研究阶段,光气化工艺具有规模、成本、产品纯度高、杂质少等优势,仍是XDI生产的主流工艺和方向。Xylylene diisocyanate(XDI)is an important raw material for high refractive index,good impact resistance and heat resistance optical polyurethane.Progress on XDI production status,patent distribution and technical research was reviewed.The research status and problems of salt-forming phosgenation,direct phosgenation,gas phase phosgenation and triphosgenation for XDI production were systematically analyzed,and the solutions for the development trend were also proposed.The non-phosgenation process is still in the laboratory development stage.With the advantages of scale,cost,high purity and less impurities,the phosgenation technology is still the future trend for XDI production.

关 键 词：苯二亚甲基二异氰酸酯 成盐光气化 直接光气化 气相光气化 固体光气化 

分 类 号：TQ031.2[化学工程]