Diluents Role in Extraction and Possible Separation of Light Rare Earth Elements from Chloride Solutions by using Cyanex® 272 used as an Extractant

다국어 초록 (Multilingual Abstract)

The present paper deals with liquid-liquid extraction studies and the possible separation of light rare earths (LREs) from chloride solutions. Aromatic diluents such as benzene, toluene and xylene were tested for LREs extraction and possible separation from chloride solutions. Bis(2,4,4-triethylpentyl)phosphinic acid (trade name Cyanex® 272) was used as an extractant and dissolved in the diluents. Various experimental parameters such as time effect, influence of pH, extractant concentration variation and maximum loading capacity of the target LREs to Cyanex® 272 were examined. Finally, the separation potential of each of the other LREs was calculated, and a suitable diluent system was proposed. The highest separation factors were found using the present systems.

참고문헌 (Reference)

1 J. S. Kim, 47 : 1644-, 2012

2 J. S. Kim, 47 : 1644-, 2012

3 Y. Cui, 121-124 : 16-, 2012

4 V. P. Shvedov, 33 : 223-, 1976

5 R. Banda, 98 : 481-, 2012

6 R. D. Gomes, 49B : 460-, 2018

7 S. Radhikaa, 75 : 295-, 2010

8 J. E. Quinn, 157 : 298-, 2015

9 R. Banda, 121-124 : 74-, 2012

10 Yang Liu, "Solvent Extraction of Pr and Nd from Chloride Solution by Mixtures of Acidic Extractants and LIX 63" 대한금속·재료학회 54 (54): 592-597, 2016

11 D. Schuler, "Rare Earths-Facts and Figures"

12 "Rare Earth Elements in National Defense: Background, Oversight Issues, and Options for Congress"

13 D.Alami, "Environmental Applications of Rare-Earth Manganites as Catalysts: A Comparative Study" 대한환경공학회 18 (18): 211-219, 2013

14 "Critical Materials Strategy"