In some cases, the metal values give a return for dust recovery. 在某些情況下,回收金屬的價值可抵償粉塵回收費用。
In this paper, a method recovered of Tungsten and copper metal from Tung-sten-Copper alloy scrap By hotsulphate has been introduced. 本文介紹了用熱的濃硫酸處理為鎢銅合金,回收金屬鎢和銅的方法。