鹽酸溶液에서 單獨 및 混合抽出劑에 의한 네오디뮴의 溶媒抽出
Solvent Extraction of Nd from Chloride Solution with Individual and Mixed Extractants
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초록
PC88A, D2EHPA, Cyanex272, Versatic acid10, D2EHPA+Alamine-304-1, D2EHPA+Alamine-308, D2EHPA+TBP, D2EHPA+TOPO, PC88A+Alamine-336, PC88A+TBP와 같은 단독 및 혼합추출제를 사용하여 Nd의 용매추출실험을 수행했다. 수용액의 평형 pH와 추출제의 농도가 증가함에 따라 Nd의 추출율은 증가하였다. 그러나 D2EHPA와 TBP 혼합추출제로 추출시에는 추출제의 농도증가에 따라 Nd의 추출율이 감소하였다. PC88A에 TBP를 첨가하는 것은 Nd의 추출에 거의 영향을 미치지 않았으나, Alamine336을 첨가하면 동일한 조건에서 추출율이 증가하였다. 실험결과로부터 단독 및 혼합추출제에 의한 Nd의 추출에 대해 고찰하였다
Abstract
An extraction study of neodymium (Nd) was investigated with different individual and mixer of extractants such as PC88A, D2EHPA, Cyanex 272, Versatic acid 10 and D2EHPA+Alamine-304-1, D2EHPA+Alamine-308, D2EHPA+TBP, D2EHPA+TOPO, PC88A+Alamine-336 and PC88A+TBP respectively. In all cases, it was observed that the extraction percentage of Nd increased with increasing equilibrium pH and extractant concentration but rather opposite observation was found that the extraction percentage of Nd decreased with increasing TBP concentration along with D2EHPA. Adding TBP to PC88A had no favorable effect on the extraction of Nd, whereas use of a mixture of PC88A with Alamine336, increased the extraction percentage of Nd under the same condition. Based on our experimental studies, this paper reports the results on the basic approach and extraction of neodymium.
참고문헌 (11)
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