芳香硝基化合物氢化制胺类产品所用的是Cu/SiO_2催化剂。它的制备过程是:硝酸铜溶液→铜氨络合物溶液→浸SiO_2→湿催化剂(洗涤、去母液)→烘干与焙烧→成品包装。这种催化剂的催化活性除了取决于自身的化学成分外,还与生产催化剂的原料优劣及操作者水平高低 Aromatic nitro compounds hydrogenated amine products used in the Cu / SiO 2 catalyst. Its preparation process is: copper nitrate solution → cuprammonium complex solution → dipping SiO_2 → wet catalyst (washing, de-mother liquor) → drying and roasting → finished product packaging. In addition to the catalytic activity of this catalyst depends on its own chemical composition, but also with the merits of raw materials for the production of catalyst and operator level