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。