Journal
JOURNAL OF RARE EARTHS
Volume 36, Issue 3, Pages 317-323Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jre.2017.09.016
Keywords
Light rare earth elements (LREEs); Solvent extraction; Cyanex 272; Lactic acid complexing agent; Auxiliary agents; Rare earths
Categories
Funding
- Anguran Lead and Zinc Company [55/G/93]
Ask authors/readers for more resources
At present, the use of rare earth elements (REEs) has become an inevitable necessity in many modern industries. In general, liquid extraction is the best commercial method for extracting REEs due to its ability to control high volumes of liquids with electrical load. With the aim of improving a separation technology that would be superior to the existing extraction systems, the extraction behaviors of La(III), Pr(III), and Nd(III) from an HCl medium with Cyanex 272 in the presence of the complexing agent lactic acid (HLac) and auxiliary agents citric acid (H(3)Cit), acetic acid (HAc), and Titriplex III have been reported. The effect of pH and lactic acid concentration has been examined. The use of lactic acid as a complexing agent leading to a high extraction of REEs with Cyanex 272 at pH = 5 was compared with systems without lactic acid. The results show that the use of acetic acid along with lactic acid leads to an increase in the extraction percentage of LREEs. While use of citric acid and Titriplex III reduces the extraction percentage of LREEs. Finally, the presence of Titriplex III together with lactic acid could lead to an increase in the separation factor of Pr and Nd. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available