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題名 | 鐵氧磁體吸附材對稀土元素吸附研究=A Study on REE Adsorption of Ferrite Adsorbent |
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作者 | 羅聖宗; 游鎮烽; 涂耀仁; 翁子偉; | 書刊名 | 鑛冶 |
卷期 | 59:1=229 2015.03[民104.03] |
頁次 | 頁69-80 |
分類號 | 472.3 |
關鍵詞 | 稀土元素; 鐵氧磁體; 吸附材; Rare earth elements; Ferrite; Adsorbent; |
語文 | 中文(Chinese) |
中文摘要 | 稀土元素(Rare Earth Elements,REE)應用於材料產業廣,市場需求日增。近年最大出口國中國大陸管制出口,價格攀升供應不穩。面對未來REE產業需求問題,應加速REE產業之回收利用技術,達資源多元供應之途徑。本研究利用對REE具親和力之逆尖晶石型態之奈米鐵氧磁體做為吸附材,並藉由其表面電荷調整方法,發展一套吸附、分離及脫附程序,為具環境友善之綠色環保吸附材。初步成果為:1. 逆尖晶石型態之奈米鐵氧磁體吸附材(30~90nm)可快速吸附REE(99.9%)。2. 由外加磁場可快速且有效(>90%)的固液分離REE 並回收再利用。3. 由其奈米顆粒表面電荷調整可快速脫附REE(>90%)。4. 在強酸鹼溶液下不影響鐵氧磁體特性,可回收再使用。5. 由鐵氧磁體吸附對REE吸附機制研究,顯示成果具實際可行。 |
英文摘要 | Rare earth elements (REE) have been extensively applied in materials industry. Limited export from Mainland China resulted in high prices and unstable supply. It is necessary to develop efficient recycling technologies to provide adequate supply for REE industries. This research focused on utilizing nano ferrite magnets of inverse spinel pattern as the adsorbent and developing a set of adsorption, separation and desorption procedures to produce an environmentally friendly green adsorbent. Preliminary results of this project are: 1. the development of adsorbent of nano inverse spinel ferrite magnets (30~90nm) that rapidly and effectively adsorb REE (99.9%); 2. utilizing an external magnetic field to accelerate the solid-liquid separation and recycling of REE (> 90% efficiency); 3. adjusting nano particle surface charge to rapidly desorb REE (> 90%); 4. enabling normal recycling operation as the magnetic properties of iron oxide are not affected by strong acid solution; 5. the REE adsorption mechanism of inverse spinel ferrite magnets is practical and feasible. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。