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All Journal Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Yuniyanti, Anisa Dwi
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Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Energy Engineering Materials Science & Nanotechnology

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Journal : Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir

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Pemisahan Itrium dengan Cara Ekstraksi Menggunakan Solven TOPO Handini, Tri; Sukarna, I Made; Yuniyanti, Anisa Dwi
EKSPLORIUM Vol. 39 No. 2 (2018): NOVEMBER 2018
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2018.39.2.4419

Abstract

Separation process of yttrium by extraction using TOPO solvents has been done. The purpose of this study is to find out the optimum condition of the variation effect of extractant concentration, stirring time, and acidity of the rare earth feed and to determine the distribution coefficient, separation factor, and extraction efficiency (%), using the liquid-liquid extraction method. The feed used were rare earth elements of xenotime sand. The extractant used in the research were TOPO (tri-n-octylphosphine oxide). Concentration of yttrium (Y), disprosium (Dy), and gadolinium (Gd) were determined using X-ray fluorescene spectrometer. Optimum conditions of the extraction process obtained from this study were: TOPO extractant concentration in kerosene 20%, stirring time 15 minutes, acidity of feed 0.5 M. Obtained value of distribution coefficient Y = 5.61; Dy = 2.06; Gd = 0.99. For extraction efficiency Y = 85.13%, Dy = 67.80%, Gd = 50.17% whereas separation factor Y-Dy = 2.7186 and Y-Gd = 5.6861.
Co-Authors Handini, Tri I Made Sukarna