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황산용액에서 Alamine 336에 의한 용매추출로몰리브덴과 텅스텐의 분리

Separation of Molybdenum and Tungsten from Sulfuric acid Solution by Solvent Extraction with Alamine 336

이만승|응우엔 티홍
한국자원리싸이클링학회|2016.02|자원리싸이클링 (Resources Recycling)|제25권 제1호|pp. 16-23|DOI http://dx.doi.org/10.7844/kirr.2016.25.1.16

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키워드

Chonnam분리SeparationTungsten텅스텐Molybdenum몰리브덴Muan-gun용매추출which permits unrestricted non-commercial usedistribution and reproduction in any mediumprovided the original work is properly cited.Solvent extraction · Received : December 212015 · Revised : January 152016 · Accepted : January 22Mokpo National University1666 Yeongsan-roCheonggye-myeon58554
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초록

황산용액에서 Alamine 336에 의한 몰리브덴과 텅스텐의 분리에 대해 수상의 pH와 추출제의 농도를 변화시키며 조사했다. 수상의 pH가 3에서 5사이의 범위에서 낮은 농도의 아민에 의해 몰리브덴이 선택적으로 추출되었다. Alamine 336과 양이온 추출제를 혼합하면 두 금속간의 분리인자가 다음 순서와 같이 증가했다 : D2EPHA > PC88A > Decanol > Versatic acid. Alamine 336과 D2EHPA의 혼합용매에서 몰리브덴과 텅스텐의 탈거율은 매우 낮았으나, Alamine 336과 Decanol의 혼합용매의 경우NH4OH 와 NH4Cl의 혼합용액으로 두 금속을 모두 탈거할 수 있었다.

Abstract

The separation behaviour of Mo and W from sulfuric acid solution by solvent extraction with Alamine 336 was investigated as a function of solution pH and extractant concentration. Selective extraction of Mo over W by Alamine 336 was obtained in the pH range of 3-5 with low amine concentration. The mixture of Alamine 336 and acidic extractants improved the separation factor between Mo and W and was in the following order: D2EPHA > PC88A > Decanol > Versatic acid. The stripping efficiency of Mo and W from the loaded mixture of Alamine 336 and D2EHPA was very poor, while complete stripping of Mo and W was possible from the mixture of Alamine 336 and Decanol by using a mixture of NH4OH and NH4Cl.

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