NDLI: Iron bearing oxide minerals separation from rare earth elements (REE) rich coal fly ash

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Iron bearing oxide minerals separation from rare earth elements (REE) rich coal fly ash

Content Provider	Scilit
Author	Nugroho, N. D. Rosita, W. Perdana, I. Bendiyasa, I. M. Mufakhir, F. R. Astuti, W.
Copyright Year	2019
Description	Journal: Iop Conference Series: Materials Science and Engineering Recovery of Rare Earth Elements (REE) from waste is an important alternative to solve global REE crisis. Therefore, coal fly ash containing REE becomes a potential candidate as an alternative source of REE. Indonesia has a large potential of coal resources, however unlike other type of coals which is rich in $SiO_{2}$ and $Al_{2}O_{3}$, Indonesian coal contains significant amount of $Fe_{2}O_{3}$. As a consequence, fly ash resulted from burning Indonesia coal is also rich in iron oxides. The presence of high concentration of iron oxides will however reduce effectiveness of REE recovery from coal ash through hydrometallurgy process. Therefore, iron oxides in the coal fly ash needs, firstly, to separate preceding further REE separation. This study determined the optimal process conditions in the iron recovery process from coal fly ash. The variables studied were fly ash grain size, magnetic field strength and separation techniques. The iron recovery was determined by mean of the ratio of iron concentration after and before magnetic separation. Experimental results showed that increasing magnetic field strength and decreasing coal fly ash grain size in a wet separation will increase the recovery of magnetic iron component. Magnetic field strength of 4300 Gauss and grain size of -400 mesh were the optimal values in this study with iron recovery of 25.89%.
Related Links	https://iopscience.iop.org/article/10.1088/1757-899X/478/1/012026/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/478/1/012026
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	478
Language	English
Publisher	IOP Publishing
Publisher Date	2019-02-26
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Applied Chemistry Mining and Mineral Processing Coal Fly Ash Iron Concentration
Content Type	Text
Resource Type	Article

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