Separation of Gadolinium(III) from Terbium(III) by the Liquid-Liquid Extraction Method with Dibutyldithiophosphate as the Extractant

Authors

  • Senadi Budiman Universitas Jenderal Achmad Yani, Cimahi
  • Arie Hardian Department of Chemistry, University of Jenderal Achmad Yani, Cimahi
  • Lisda Virdasari Department of Chemistry, University of Jenderal Achmad Yani, Cimahi
  • Nurdeni Nurdeni Departement of Mathematics Education, University of Indraprasta PGRI, Jakarta.
  • Herman Herman Fakultas Farmasi, Universitas Mulawarman, Samarinda, Indonesia
  • Abdul Mutalib Department of Chemistry, Padjadjaran University, Jatinangor
  • Anni Anggraeni Department of Chemistry, Padjadjaran University, Jatinangor
  • Husein H. Bahti Department of Chemistry, Padjadjaran University, Jatinangor

DOI:

https://doi.org/10.25026/jtpc.v6i1.430

Keywords:

gadolinium, terbium, dibutyl dithiophosphate, liquid-liquid extraction

Abstract

The purpose of this research is to separate gadolinium(III) from terbium(III), by the liquid-liquid extraction method, with the extractant dibutyl dithiophosphate. Gadolinium(III) and terbium(III) have been selected in this study to see if the two metallic ions still could be separated although they have only one difference in atomic number, and in fact, terbium (65Tb) is the next to gadolinium(64Gd), in the lanthanide series. Also besides, the two metals have been found together in the same mineral such as gadolinite, and in some other minerals in Indonesia. Extraction parameters have been firstly selected and extraction conditions have been optimized as well, using the experimental design of Plackett Burman. Thus, experiments have been done to select which of the nine parameters (i.e. Gd(III) and Tb(III) concentrations, the concentration of the extractant (dibutyl dithiophosphate), pH, volume ratio of aqueous phase to the organic phase, extraction temperature, shaking rate, shaking time, resting time (after shaking), have their significant effect on the extraction efficiency and separation. The data resulted  from this study show that there were five of the nine factors studied that determine the extraction efficiency and separation. They were (with its respective optimum value in the bracket): Gadolinium concentration [Gd(III)](5 ppm), terbium concentration [Tb(III)](5 ppm), pH(3.0), shaking time (10 minutes), and rest time after shaking (10 minutes).

Downloads

Download data is not yet available.

References

Bahti, H. H., Mulyasih, Y., & Anggraeni, A. (2017). Extraction and chromatographic studies on rare-earth elements ( REEs ) from their minerals?: the prospect of REEs ... from their minerals?: the prospect of REEs production in Indonesia?? International Seminar on Chemistry, 2011(6), 421–230.

Fontana, D., & Pietrelli, L. (2009). Separation of middle rare earths by solvent extraction using 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester as an extractant. Journal of Rare Earths. https://doi.org/10.1016/S1002-0721(08)60344-0

Hirai, T., & Komasawa, I. (1992). Separation of europium from samarium and gadolinium by combination of electrochemical reduction and solvent extraction. Journal of Chemical Engineering of Japan, 25(6). https://doi.org/10.1252/jcej.25.644

Miranda, P., & Zinner, L. B. (1997). Separation of samarium and gadolinium solutions by solvent extraction. Journal of Alloys and Compounds, 249(1–2 pt 1), 116–118. https://doi.org/10.1016/S0925-8388(96)02754-5

Morais, C. A., & Ciminelli, V. S. T. (2007). Selection of solvent extraction reagent for the separation of europium(III) and gadolinium(III). Minerals Engineering. https://doi.org/10.1016/j.mineng.2007.02.010

Rabie, K. A., Sayed, S. A., Lasheen, T. A., & Salama, I. E. (2007). Europium separation from a middle rare earths concentrate derived from Egyptian black sand monazite. Hydrometallurgy, 86(3–4). https://doi.org/10.1016/j.hydromet.2006.10.007

Suprapto, S. J. (2009). Tinjauan tentang unsur tanah jarang. Buletin Sumber Daya Geologi.

Takahashi, K., Abdel-Tawab, A. A. S., Nii, S., Yajima, T., & Kawaizumi, F. (2002). Extraction of rare earth metals with a multistage mixer-settler extraction column. Chemical Engineering Science, 57(3). https://doi.org/10.1016/S0009-2509(01)00370-0

Thakur, N. V. (2000). Separation of rare earths by solvent extraction. Mineral Processing and Extractive Metallurgy Review, 21(1–5), 277–306. https://doi.org/10.1080/08827500008914171

Torkaman, R., Moosavian, M. A., Torab-Mostaedi, M., & Safdari, J. (2013). Solvent extraction of samarium from aqueous nitrate solution by Cyanex301 and D2EHPA. Hydrometallurgy, 137. https://doi.org/10.1016/j.hydromet.2013.04.005

USGS. (2014). USGS Minerals information.

Wu, S., Wang, L., Zhao, L., Zhang, P., El-Shall, H., Moudgil, B., … Zhang, L. (2018). Recovery of rare earth elements from phosphate rock by hydrometallurgical processes – A critical review. Chemical Engineering Journal, 335(August 2017), 774–800. https://doi.org/10.1016/j.cej.2017.10.143

Wyantuti, S., Fadhilah, R. A., Eddy, D. R., & Hartati, Y. W. (2017). Preparasi Elektrode Glassy Karbon-AuNP Dan Aplikasinya untuk Penentuan Cr(III) Secara Voltammetri dengan Pengaruh Cd(II), Cu(II), Zn(II), Dan Cr(VI). Chimica et Natura Acta, 5(2). https://doi.org/10.24198/cna.v5.n2.14608

Downloads

Published

2022-06-30

How to Cite

Budiman, S., Hardian, A., Virdasari, L., Nurdeni, N., Herman, H., Mutalib, A., Anggraeni, A., & Bahti, H. H. (2022). Separation of Gadolinium(III) from Terbium(III) by the Liquid-Liquid Extraction Method with Dibutyldithiophosphate as the Extractant. Journal of Tropical Pharmacy and Chemistry, 6(1), 64–70. https://doi.org/10.25026/jtpc.v6i1.430

Most read articles by the same author(s)