Penghasilan unsur nadir bumi daripada mineral monazit menggunakan pemendakan terpilih

Translated title of the contribution: Production of rare earth elements from Malaysian monazite by selective precipitation

Che Nor Aniza Che Zainul Bahri, Wadeeah M. Al-Areqi, Amran Ab. Majid, Mohd Izzat Fahmi Mohd Ruf

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Rare earth elements (REEs) are very valuable and have high demands for advanced technology nowadays. REEs can be classified to light rare earth elements (LREEs) and heavy rare earth elements (HREEs). Malaysian rare earth ore especially monazite, is rich with LREEs compared to HREEs. Therefore a study was carried out to extract the REE from Malaysian monazite. The objectives of this study are to determine the content of REEs in Malaysian monazite leach solution, as well as to produce high grade of REEs. Concentrated sulphuric acid was used in digestion process and the filtrate containing the REEs was determined using Inductively Coupled Plasma- Mass Spectrometry (ICP-MS). Ammonia solution was used for REEs precipitation from monazite leach solution. The result indicated that REEs was successfully separated from monazite leach solution through selective precipitation using ammonia at pH 2.34 and the percentage of REEs that successfully separated was 70.03 – 81.85%. The percentage of REEs which successfully separated from final solution was 96.05 – 99.10%. Therefore, to have high purification of individual REEs, solvent extraction process should be carried out.

Original languageMalay
Pages (from-to)44-50
Number of pages7
JournalMalaysian Journal of Analytical Sciences
Volume20
Issue number1
Publication statusPublished - 2016

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Rare earth elements
monazite
Ammonia
Inductively coupled plasma mass spectrometry
Solvent extraction
Rare earths
Ores
Purification

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Penghasilan unsur nadir bumi daripada mineral monazit menggunakan pemendakan terpilih. / Bahri, Che Nor Aniza Che Zainul; Al-Areqi, Wadeeah M.; Ab. Majid, Amran; Ruf, Mohd Izzat Fahmi Mohd.

In: Malaysian Journal of Analytical Sciences, Vol. 20, No. 1, 2016, p. 44-50.

Research output: Contribution to journalArticle

Bahri, Che Nor Aniza Che Zainul ; Al-Areqi, Wadeeah M. ; Ab. Majid, Amran ; Ruf, Mohd Izzat Fahmi Mohd. / Penghasilan unsur nadir bumi daripada mineral monazit menggunakan pemendakan terpilih. In: Malaysian Journal of Analytical Sciences. 2016 ; Vol. 20, No. 1. pp. 44-50.
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