The Effects of Leaching Process to the TiO2 Synthesis from Bangka Ilmenite

International Conference on Advanced Materials for Better Future 2017

Wahyuningsih, S.^1 ; Ramelan, A.H.^1 ; Pramono, E.^1 ; Argawan, P.^1 ; Djatisulistya, A.^1 ; Firdiyono, F.^1 ; Sulistiyono, E.^2 ; Sari, P.P.^1

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

Metallurgical Research Center, LIPI, Serpong, Indonesia^2

关键词: Alcoholic solvents;    Hydrochloric acid leaching;    Hydrolysis conditions;    Low concentrations;    Naturally occurring;    Separation of components;    Sulfuric acid leaching;    TiO2 nano-particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012049/pdf
DOI  :  10.1088/1757-899X/333/1/012049

来源: IOP

【 摘 要 】

Ilmenite mineral is a naturally occurring iron titanate (FeTiO3) and is abundant in nature. The separation of components into TiO2and Fe2O3must be expand. The purpose of this research is to synthesis TiO2nanoparticles from the filtrate of Bangka ilmenite leaching process. Leaching of ilmenite was done with H2SO4and HCl at various concentrations. The formation of TiO2crystal determined by hydrolysis conditions and condensation reaction. TiO2synthesized from the filtrate of sulfuric acid leaching that produced from TiO2anatase phase when hydrolyzed in an aquaregia solvent and low concentrations of HCl (0.1M). Hydrolysis conditions at higher concentrations of HCl (1M) was produced TiO2anatase-rutile phase. The synthesis of TiO2from the filtrate of hydrochloric acid leaching was produced anatase phase. While the condition under the alcoholic solvent (2-propanol: H2O (v/v) = 9: 1) anatase phase crystallites grow in the temperature range up to 550 °C, above this temperature, TiO2transform into rutile phase.