| 摘要 |
<p>Disclosed is a method for collecting a valuable metal from an indium-tin oxide (ITO) scrap, characterized by collecting tin by the electrolysis of th e ITO scrap. Also disclosed is a method for collecting a valuable metal from an ITO scrap, characterized by providing an ITO-electrolyzing bath and a ti n-collecting bath, dissolving the ITO scrap in the electrolyzing bath, and c ollecting tin in the collecting bath. Further disclosed is a method for coll ecting a valuable metal from an ITO scrap, characterized by conducting the e lectrolysis of the ITO scrap in an electrolyte solution by using the ITO scr ap as an anode to dissolve the ITO scrap, causing the precipitation of only tin in the solution in the form of metal tin or a tin-containing substance, removing the precipitation product and placed it in a collection bath where the precipitation product is dissolved again to provide a solution of tin hy droxide, and conducting the electrolysis or neutralization of the solution t o collect tin. It becomes possible to provide a method for collecting tin at high efficiency from an ITO sputtering target or an ITO scrap (e.g., a ITO waste) produced during the production of the ITO sputtering target.</p> |
