Preparation of Fe2O3-TiO2 composite from Sukabumi iron sand through magnetic separation, pyrometallurgy, and hydrometallurgy

8th International Conference on Physics and its Applications

Wahyuningsih, S.^1 ; Ramelan, A.H.^2 ; Pranata, H.P.^1 ; Hanif, Q.A.^1 ; Ismoyo, Y.A.^1 ; Ichsan, K.F.^1

Inorganic Materials Research Group, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Indonesia^1

Electronic Material and Energy Research Group, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Jl., Ir. Sutami 36A, Kentingan, Jebres, Surakarta

57126, Indonesia^2

关键词: Condensation product;    Magnetic particle;    Non-magnetic particles;    Second condensation;    Titanium dioxides (TiO2);    Weight ratios;    X ray fluorescence analysis;    XRD analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012026/pdf
DOI  :  10.1088/1742-6596/776/1/012026

来源: IOP

【 摘 要 】

Preparation of Fe2O3/TiO2composite from Sukabumi iron sand by magnetic separation, roasting, leaching and precipitation treatment has been carried out. Magnetic separation can separate magnetic particles and non-magnetic particles of iron sand content, while the non-magnetic particles (wustite (FeO), hematite (α-Fe2O3), maghemite (γ-Fe2O3) and magnetite (Fe3O4)) was washing with oxalic acid 1 M. The result product then was roasted at 800 °C treated by sodium carbonate (Na2CO3) addition of 1:1; 2:1 and 1:2 (w/w) of iron sand to Na2CO3 weight ratio, respectively. The X-Ray Fluorescence (XRF) analysis result shown that Sukabumi iron sand have hematite (Fe2O3) and titanium dioxide (TiO2) content about 72.17% dan 14.42%. XRD analysis of roasted iron sand shown the rutile (TiO2), Hematite (Fe2O3), NaFeO2, FeO, and Na2TiO3. Leaching of roasted iron sand using sulphuric acid (H2SO4) have influenced by concentrations of the H2SO4 solution. The optimum iron sand dissolution occurred in H2SO4 9 M, which condensation product of the leachant have a weight ratio of Fe:Ti = 1:1 (w/w). Meanwhile, the settling back-filtrate result of second condensation was obtained a ratio of Fe2O3: TiO2of 3: 1 (w/w).