工业级十二烷基吗啉的成分分析

摘要

用扫描电子显微镜、X射线能谱仪、X射线衍射仪、傅里叶红外光谱仪、气相色谱-质谱联用仪(GC-MS)等仪器对工业级十二烷基吗啉(DMP)的主成分和杂质进行了鉴定和分析.研究表明,其中的固体不溶物杂质主要是铜镍负载型催化剂脱落的碎片;工业级 DMP 中主成分为DMP,约占88%,十二醇是主要的液相杂质,含量达到11.5%,其余杂质含量均低于0.17%,未检测到吗啉.%SEM,EDS,XRD,FTIR and GC-MS were employed to analyze substance species and structure of main ingredient and impurities of industrial grade DMP.The results show that the insoluble impurities are mainly debris fall off from copper and nickel supported catalyst.The major constituent of industrial grade DMP is DMP(88%).Excessive dodecanol used during the synthesis process brings about 11.5%impurities.The remaining impurities are less than 0.17%.Morpholine has high conversion efficiency dur-ing the preparation process resulting in no surplus.