合成CBN用触媒Mg_3N_2的研制及应用

Synthesis and Application of Mg_3N_2 for Using as CBN Forming Catalyst

介绍了用金属镁在Ｎ２气氛下于高温合成Ｍｇ３Ｎ２的工艺方法．用差热（ＤＴＡ）、热重（ＴＧ）、ＸＲＤ及ＳＥＭ等仪器分析了合成产物、证明这种合成工艺是可行的．并用Ｍｇ３Ｎ２做触媒进行了ＣＢＮ合成试验．证明用上述方法合成的Ｍｇ３Ｎ２可做为ＣＢＮ合成触媒．文中还分析了合成工艺、触媒保存方法及传压介质对其效能的影响．

process with in which Mg3N2 was is synthesised by heating metalmiagnesium under a nitrogen stream at high temperature was introduced. Theprocess and products were analysised by TDA.TG.XRD and SEM.The CBNwas synthesized by using the Mg3N2 catalyst.It has been proved that the Mg3N2can be a suitable catalyst for CBN synthesis.The effects of process parameter.catalyst stored method and transmit pressure medium on CBN formation were discussed.