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Korean Journal of Metals and Materials > Volume 55(1); 2017 > Article
Korean Journal of Metals and Materials 2017;55(1): 31-38. doi: https://doi.org/10.3365/KJMM.2017.55.1.31
진한 염산용액에서 Alamine 336과 LIX 63의 용매추출에 의한 레늄(VII)과 바나듐(V)의 분리
백지원, 이만승
목포대학교 공과대학 신소재공학과
Separation of Rhenium(VII) and Vanadium(V) from concentrated HCl solution by solvent extraction with Alamine 336 and LIX 63
Ji-Won Baek, Man-Seung Lee
Department of Advanced Materials Science & Engineering, Mokpo National University, Chonnam 58554, Republic of Korea
Correspondence  Man-Seung Lee ,Tel: +82-61-450-2492, Email: mslee@mokpo.ac.kr
Received: 18 July 2016;  Accepted: 7 August 2016.  Published online: 5 January 2017.
ABSTRACT
Solvent extraction experiments were performed with Re(VII) and V(V) from concentrated HCl solutions. In this work, Alamine 336 and LIX 63 were employed as the basic and cationic extractants. At an HCl concentration range from 1 to 5 M, Re(VII) was selectively extracted by Alamine 336, while V(V) was selectively extracted by LIX 63. A low HCl concentration was favorable for separating the two metals by solvent extraction. Although an alkaline solution can completely strip both Re(VII) and V(V) from loaded Alamine 336 and LIX 63, it was difficult to separate the two metals by stripping. However, it was found that an HCl solution could selectively strip the metal with a low extraction percentage from the loaded Alamine 336 and LIX 63, and thus separation of the two metals was achieved. Our data can be utilized to develop a process for separating Re(VII) and V(V) from concentrated HCl solutions.
Keywords: Rhenium, Vanadium, solvent extraction, Alamine336, LIX63
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