TY - JOUR
T1 - Extraction of rare earth elements from low-grade Bauxite via precipitation reaction
AU - Kusrini, Eny
AU - Nurani, Y.
AU - Bahari, Z. J.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2018/4/6
Y1 - 2018/4/6
N2 - The aim of this research was to determine the optimum hydrometallurgical parameters to extract the rare earth elements (REE) from low-grade bauxite through acid leaching and precipitation reaction. REE or lanthanide recovery by a precipitation method with sodium sulphate and sodium phosphate as precipitation agents is reported where the effect of pH and recovery of REE are described. The metal composition of REE in low-grade bauxite after treatment were analyzed by ICP-OES. The total recovery values of REE elements at the first precipitation reaction using sodium sulphate as the precipitation agent at pH 3.5 showed ∼68.2% of lanthanum, ∼18.9% cerium, and ∼7.8% yttrium. Lanthanum was the rare-earth element present at the highest concentration in the low-grade bauxite after the series treatments. An optimum pH of 3.5 for precipitation of rare-earth elements using sodium sulphate was demonstrated where this method is recommended for the extraction of REE elements from low-grade bauxite.
AB - The aim of this research was to determine the optimum hydrometallurgical parameters to extract the rare earth elements (REE) from low-grade bauxite through acid leaching and precipitation reaction. REE or lanthanide recovery by a precipitation method with sodium sulphate and sodium phosphate as precipitation agents is reported where the effect of pH and recovery of REE are described. The metal composition of REE in low-grade bauxite after treatment were analyzed by ICP-OES. The total recovery values of REE elements at the first precipitation reaction using sodium sulphate as the precipitation agent at pH 3.5 showed ∼68.2% of lanthanum, ∼18.9% cerium, and ∼7.8% yttrium. Lanthanum was the rare-earth element present at the highest concentration in the low-grade bauxite after the series treatments. An optimum pH of 3.5 for precipitation of rare-earth elements using sodium sulphate was demonstrated where this method is recommended for the extraction of REE elements from low-grade bauxite.
UR - http://www.scopus.com/inward/record.url?scp=85046269710&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/334/1/012052
DO - 10.1088/1757-899X/334/1/012052
M3 - Conference article
AN - SCOPUS:85046269710
SN - 1757-8981
VL - 334
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012052
T2 - 3rd International Conference on Chemical Engineering Sciences and Applications 2017, ICChESA 2017
Y2 - 20 September 2017 through 21 September 2017
ER -