本文报道了用两种铁化合物制备的温和条件下合成氨的EDA型催化剂。得到了活性较高的FeCp_2-K-C催化体系。常压下,350℃,1000小时~(-1)时出口氨浓度可达0.70％,接近热力学平衡值(0.838％)。加压下,150公斤/厘米~2,350℃,15000小时~(-1)时出口氨浓度可达12.5％。考察了影响催化活性的几种因素并进行了讨论。 This paper reports the synthesis of ammonia under mild conditions using two iron compounds EDA-type catalyst. The higher activity of FeCp 2-K-C catalyst system was obtained. At atmospheric pressure, the ammonia concentration at exit was up to 0.70% at 350 ℃ and 1000 h (-1), close to the thermodynamic equilibrium (0.838%). Under the pressure of 150 kg / cm ~ 2,350 ℃, 15000 hours ~ (-1) export ammonia concentration up to 12.5%. Several factors affecting the catalytic activity were investigated and discussed.