This paper introduces the digestion technology of mechanical activation in lieu of that of alkali boiling for manufacturing tungstic acid. 本文介绍在复盐法生产钨酸中用机械活化浸取工艺代替碱煮浸取工艺的新方法。
The leaching process of cobalt from waste hard-alloy by use of phosphoric acid and ozogen is introduced. 介绍了利用磷酸和过氧化氢从废硬质合金中浸取钴的方法。
