Pengekstrakan dan Penulenan Torium Oksida (ThO2) daripada Mineral Monazit

Translated title of the contribution: Extraction and purification of thorium oxide (ThO2) from monazite mineral

Che Nor Aniza Che Zainul Bahri, Aznan Fazli Ismail, Amran Ab. Majid, Mohd Izzat Fahmi Mohd Ruf, Wadee'Ah Mutahir Al-Areqi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Monazite is a phosphate mineral containing rare earth elements (REEs), thorium and uranium at certain concentrations. The thorium concentration in Malaysian monazite was reported in the range of 2,525.0 - 40,868 ppm and potentially be used as fuel in thorium nuclear power reactor. Therefore, this study aimed to investigate the extraction and purification process of thorium oxide (ThO2) from local monazite. The extraction and purification process of ThO2 divided into four stages which are digestion, separation, solvent extraction and calcination. Sample characterizations were carried out via inductive coupled plasma-mass spectrometry (ICP-MS), thermogravimetric analysis (TGA), x-ray diffraction (XRD) and scanning electron microscope-energy dispersive x-ray spectroscopy (SEM-EDS). The digestion process produced monazite leach solution ((Th,REE,U)(SO4)2) containing up to 99.77 ± 7.84 mg of thorium. Rare earth elements (La, Ce, Nd, Pr, Sm, Eu and Gd) were separated from thorium at a percentage of 96.73%. Meanwhile, the produced Th(NO3)4 and ThO2 has the purity of 97.10 ± 0.74% and 98.85 ± 0.69%, respectively. Therefore, this study showed that the extraction and purification of ThO2 from local monazite are possible to achieve through the staggered extraction process.

Original languageMalay
Pages (from-to)1873-1882
Number of pages10
JournalSains Malaysiana
Volume47
Issue number8
DOIs
Publication statusPublished - 1 Aug 2018

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Thorium Dioxide
Thorium
Purification
Minerals
Rare earth elements
Phosphate minerals
X rays
Uranium
Solvent extraction
Nuclear energy
Calcination
Mass spectrometry
Thermogravimetric analysis
Electron microscopes
Diffraction
monazite
Spectroscopy
Scanning
Plasmas

ASJC Scopus subject areas

  • General

Cite this

Bahri, C. N. A. C. Z., Ismail, A. F., Ab. Majid, A., Ruf, M. I. F. M., & Al-Areqi, WA. M. (2018). Pengekstrakan dan Penulenan Torium Oksida (ThO2) daripada Mineral Monazit. Sains Malaysiana, 47(8), 1873-1882. https://doi.org/10.17576/jsm-2018-4708-28

Pengekstrakan dan Penulenan Torium Oksida (ThO2) daripada Mineral Monazit. / Bahri, Che Nor Aniza Che Zainul; Ismail, Aznan Fazli; Ab. Majid, Amran; Ruf, Mohd Izzat Fahmi Mohd; Al-Areqi, Wadee'Ah Mutahir.

In: Sains Malaysiana, Vol. 47, No. 8, 01.08.2018, p. 1873-1882.

Research output: Contribution to journalArticle

Bahri, CNACZ, Ismail, AF, Ab. Majid, A, Ruf, MIFM & Al-Areqi, WAM 2018, 'Pengekstrakan dan Penulenan Torium Oksida (ThO2) daripada Mineral Monazit', Sains Malaysiana, vol. 47, no. 8, pp. 1873-1882. https://doi.org/10.17576/jsm-2018-4708-28
Bahri, Che Nor Aniza Che Zainul ; Ismail, Aznan Fazli ; Ab. Majid, Amran ; Ruf, Mohd Izzat Fahmi Mohd ; Al-Areqi, Wadee'Ah Mutahir. / Pengekstrakan dan Penulenan Torium Oksida (ThO2) daripada Mineral Monazit. In: Sains Malaysiana. 2018 ; Vol. 47, No. 8. pp. 1873-1882.
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