Secondary ammonium

The influence on direct reduction for MoO 2 from secondary ammonium molybdate of potassium

钾对仲钼酸铵直接还原成二氧化钼的影响

Several secondary ammonium cations were designed ; a synthetic route was established to gain the precursors .

设计若干二级铵盐；研究建立了一条铵盐前体的合成路线。

It can avoid the particles gathering and colour blackening if the potassium is added in direct reduction for MoO 2 from secondary ammonium molybdate .

仲钼酸铵直接还原成二氧化钼时加钾，可克服产生颗粒聚集、颜色发黑等还原不良现象。

After the solution of ammonium molybdate is neutralized by vaporizing and thickening , the secondary ammonium molybdate is crystallized , and the molybdenum from it is retrieved .

吸附钼后的吸附剂用氨水反洗，得到的钼酸铵溶液，通过蒸发、浓缩、中和结晶出仲钼酸铵，从而回收其中的钼。

The Selective Oxidations of Secondary Alcohols by Ammonium Chlorochromate

氯化铵三氧化铬对仲醇的选择性氧化研究