本研究為針對含鈀鉑銠銅陽極泥中鈀、鉑、銠金屬資源的再生技術開發，
實驗採用濕法冶金技術進行金屬的回收，主要步驟可以分為酸溶浸出、分離純化與金屬析出，並可將最終金屬產品回用到產品端。
首先對含鈀鉑銠銅陽極泥進行酸溶浸出，分為選擇性溶出雜質金屬以及目
標金屬溶出兩個階段。第一階段之選擇性溶出雜質金屬以硫酸加壓浸出對含鈀鉑銠銅陽極泥中雜質進行溶出，探討各項酸溶浸出之實驗參數以得到最佳浸漬條件，雜質元素-銅、磷、鐵之溶出率分別達到99.3%、86.5%、99.9%，而後對經第一階段處理之渣相進行第二階段之目標金屬溶出，並以鹽酸添加過氧化氫對含鈀鉑銠銅陽極泥中目標金屬進行溶出探討，探討各項酸溶浸出之實驗參數以得到最佳浸漬條件，鈀、鉑、銠之溶出率分別達到98.1%、96.3%、89.8%。完成目標金屬溶出後對所得之浸出液進行鈀、鉑、銠的分離純化，在本研究中使用溶媒萃取技術，對各項實驗參數進行探討，在萃取階段中使用三正辛胺萃取浸出液中之鈀與鉑，將銠留置於水相後對有機相中鈀與鉑進行選擇性反萃，反萃階段中分別以硫脲對鈀及硫氰酸鈉對鉑進行反萃，實驗結果顯示，在萃取階段鈀鉑一次萃取率大於99%而銠則約10%，而在後續反萃階段，一次反萃效率鈀與鉑也可達99%與90%以上。最後對分離純化後之各別金屬水相進行金屬產品析出之研究，此部分使用化學沉澱法以聯氨水合物對水相之鈀、鉑、銠進行金屬產品的析出，藉著對酸鹼值與藥劑用量進行調整，將水相中之目標金屬還原沉澱為金屬還原態產品。最終藉由儀器分析產品純度，鈀、鉑、銠均可達99%以上。

This study is focused on the recovery of Palladium, Platinum, and Rhodium from Copper Anode Slime by hydrometallurgy method and can be divided into three parts: acid leaching part, separation part and recovery part. In the acid leaching part, impurities such as Cu, P, and Fe are removed by H2SO4 first and then target metals such as Pd, Pt, and Rh are dissolved by the mixture of HCl and H2O2. In the separation part, Pd, Pt, and Rh in the leaching liquor of target metals dissolving are separated by solvent extraction. Trioctylamine is used to extract Pd and Pt from the organic phase, and thiourea and sodium thiocyanate are used to strip Pd and Pt respectively to the aqueous phase. In the recovery part, Pd, Pt, and Rh in the aqueous phase are recovered by precipitation with hydrazine monohydrate. Finally, metal Pd, Pt, and Rh are obtained in this study. With the optimum condition, the purity of the metal Pd, Pt, and Rh are over 99% and the recovery of Pd, Pt, and Rh are 95.27%, 94.21%, and 71.03% respectively.

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