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專利授權區
專利名稱(中)	含鎢合金的有價金屬元素回收方法
專利名稱(英)	METHOD FOR RECOVERING METALS FROM TUNGSTEN-CONTAINING METALLIC MATERIAL
專利家族	中華民國：I789246 大陸：CN116657153A(公開號) 美國：US2023/0265574A1(公開號)
專利權人	國立清華大學 100.00%
發明人	賴志煌,羅韶奇,鄭梓民
技術領域	材料化工

專利摘要(中)
一種含鎢合金的有價金屬元素回收方法，包含一設置步驟，及一電化學步驟。該設置步驟是將一陰極，及一作為陽極的含鎢合金浸入一電解溶液中，並使該電解溶液的pH值為中性、不大於2，或不小於10的其中一者。該電化學步驟是施加一電壓進行陽極處理，令該電壓通過該陽極時產生一不小於3W/cm2的功率密度，而可擊穿於陽極處理時形成於該陽極表面的金屬氧化物層，以令該陽極可持續的被氧化，並自該陽極釋出，得到一可溶解於該電解溶液的含鎢離子化合物，或一沉澱於該電解溶液的含鎢氧化物的其中至少一者。

專利摘要(中)

一種含鎢合金的有價金屬元素回收方法，包含一設置步驟，及一電化學步驟。該設置步驟是將一陰極，及一作為陽極的含鎢合金浸入一電解溶液中，並使該電解溶液的pH值為中性、不大於2，或不小於10的其中一者。該電化學步驟是施加一電壓進行陽極處理，令該電壓通過該陽極時產生一不小於3W/cm2的功率密度，而可擊穿於陽極處理時形成於該陽極表面的金屬氧化物層，以令該陽極可持續的被氧化，並自該陽極釋出，得到一可溶解於該電解溶液的含鎢離子化合物，或一沉澱於該電解溶液的含鎢氧化物的其中至少一者。

專利摘要(英)
Therefore, an object of the present disclosure is to provide a method for recovering metals from tungsten-containing metallic materials which can alleviate at least one of the drawbacks of the prior art. According to the present disclosure, the method includes the steps of: providing a cathode and the tungsten-containing metallic material serving as an anode in an electrolyte solution which has a pH value of one of neutral, not greater than 2, and not less than 10; and subjecting the tungsten-containing metallic material to an electrolysis process under a power density that is greater than 3 W/cm2 on the anode so that a passivation layer formed on the anode during the electrolysis process is broken down to permit the tungsten-containing metallic material to be continuously dissolved and oxidized, and a tungsten-containing compound is formed in the electrolyte solution.

專利摘要(英)

Therefore, an object of the present disclosure is to provide a method for recovering metals from tungsten-containing metallic materials which can alleviate at least one of the drawbacks of the prior art. According to the present disclosure, the method includes the steps of: providing a cathode and the tungsten-containing metallic material serving as an anode in an electrolyte solution which has a pH value of one of neutral, not greater than 2, and not less than 10; and subjecting the tungsten-containing metallic material to an electrolysis process under a power density that is greater than 3 W/cm2 on the anode so that a passivation layer formed on the anode during the electrolysis process is broken down to permit the tungsten-containing metallic material to be continuously dissolved and oxidized, and a tungsten-containing compound is formed in the electrolyte solution.

聯絡資訊
承辦人姓名	楊美茹
承辦人電話	03-5715131 #62305
承辦人Email	mjyang2@mx.nthu.edu.tw