| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a recycling system for a composite material of a high-melting metal and copper, which eliminates an oxidation and calcination step in an oxidative atmosphere at a high temperature, does not produce dust, gives little load on the environment and does not need excessive energy. <P>SOLUTION: The recycling system for the composite material of the high-melting metal and copper directs at separating a WCu composite material or a MoCu composite material into each of single metals and collecting them, and comprises the steps of; eluting Cu singly from the composite material and separating it while skipping a step of pulverizing the base material and calcinating it at a high temperature; and purifying/isolating W. Thus, the recycling system can separately recycle each metal of W, Mo and Cu by a wet process which gives little load on the environment. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
