Extraction of Alumina from Red Mud for Synthesis of Mesoporous Alumina by Adding CTABr as Mesoporous Directing Agent


Eka Putra Ramdhani(1), Tri Wahyuni(2), Yatim Lailun Ni’mah(3), Suprapto Suprapto(4), Didik Prasetyoko(5*)

(1) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia Department of Chemistry Education, Faculty of Teacher Training and Education, Raja Ali Haji Maritime University, Senggarang, Tanjungpinang, Indonesia
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia
(4) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia
(5) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia
(*) Corresponding Author


Mines in Bintan were producing bauxite for many years. The production process of bauxite to alumina produced much red mud. From X-ray Fluorescence (XRF), alumina content on Bintan’s red mud was 28.87 wt.%. This research was studying on the extraction alumina from red mud with reduction of hematite (Fe2O3) and desilication processes. After extraction process alumina was collected about 52.89 wt.%. Synthesis of mesoporous alumina from red mud using sol-gel method at the room temperature for 72 h with cetyltrimethylammonium bromide (CTABr) as mesoporous directing agent. The CTABr/Al-salt ratio, i.e. 1.57; 4.71 and 7.85 with the sample code of AMC-1, AMC-3, AMC-5, respectively. The product was calcined at 550 °C for 6 h. The synthesized materials were characterized by X-ray Diffraction (XRD), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), transmission electron microscopy (TEM), and N2 adsorption-desorption techniques. XRD pattern of AMC-1, AMC-3, and AMC-5 showed that all synthesized materials have amorphous phase. The morphology were wormhole aggregate that were showed by SEM and TEM characterization. N2 adsorption-desorption characterization showed the distribution of pore size of about 3.2 nm. The highest surface area and pore volume were obtained in solid-solid ratio CTABr/GM-AL by 1.57 (AMC-1) i.e. 241 m2/g and 0.107 cm3/g, respectively.


red mud; CTABr; alumina extraction; sol gel method; mesoporous alumina

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[1] Zhang, R., Zheng, S., Ma, S., and Zhang, Y., 2011, Recovery of alumina and alkali in Bayer red mud by the formation of andradite-grossular hydrogarnet in hydrothermal process, J. Hazard. Mater., 189 (3), 827–835.

[2] Wang, J., and Zhao, P., 2013, Method of dealkalizing red mud and recovering aluminium and iron, Google Patents, CN 201210573146.

[3] Liu, Y., Lin, C., and Wu, Y., 2007, Characterization of red mud derivated from a combined Bayer process and bauxite calcinations method, J. Hazard. Mater., 146 (1-2), 255–261.

[4] Mayes, W.M., Jarvis, A.P., Burke, I.T., Walton, M., Feigl, V.R., Klebercz, O., and Gruiz, K., 2011, Dispersal and attenuation of trace contaminants downstream of the Ajka bauxite residue (red mud) depository failure, Hungary, Environ. Sci. Technol., 45 (12) 5147–5155.

[5] Liu, Y., Naidu, R., and Ming, H., 2013, Surface electrochemical properties of red mud (bauxite residue): Zeta potential and surface charge density, J. Colloid Interface Sci., 394, 451–457.

[6] Klauber, C., Gräfe, M., and Power, G., 2011, Bauxite residue issues: II. Options for residue utilization, Hydrometallurgy, 108 (1-2), 11–32.

[7] Liu, W., Yang, J., and Xiao, B., 2009, Review on treatment and utilization of bauxite residues in China, Int. J. Miner. Process., 93 (3-4), 220–231.

[8] Man, K., Zhu, Q., Li, L., Liu, C., and Xing, P., 2017, Preparation and performance of ceramic filter material by recovered silicon dioxide as major leached components from red mud, Ceram. Int., 43 (10), 7565–7572.

[9] Li, J., Xu, L., Sun, P., Zhai, P., Chen, X., Zhang, H., Zhang, Z., and Zhu, W., 2017, Novel application of red mud: Facile hydrothermal-thermal conversion synthesis of hierarchical porous AlOOH and Al2O3 microspheres as adsorbents for dye removal, Chem. Eng. J., 321, 622–634.

[10] Paramguru, R.K., Rath, P.C., and Misra, V.N., 2004, Trend in red mud utilization – A review, Miner. Process. Extr. Metall. Rev., 26 (1) 1–29.

[11] Snars, K., and Gilkes, R.J., 2009, Evaluation of bauxite residues (red mud) of different origins for environmental application, Appl. Clay Sci., 46 (1), 13–20.

[12] Wang, S., Ang, H.M., and Tade, M.O., 2008, Novel applications of red mud as coagulant, adsorbent and catalyst for environmentally benign process, Chemosphere, 72 (11) 1621–1635.

[13] Ray, S., Wasewar, K.L., Lataye, D.H., Mukhopadhyay, J., and Yoo, C.K., 2013, Feasibility of red mud neutralization with seawater using Taguchi’s methodology, Int. J. Environ. Sci. Technol., 10 (2), 305–314.

[14] Samal, S., Ray, A.K., and Bandopadhyay, A., 2013, Proposal for resources, utilization and processes of red mud in India - A review, Int. J. Miner. Process., 118, 43–55.

[15] Hammond, K., Apelian, B.M.D., and Blanpain, B., 2013, CR3 communication: red mud-a resource or a waste?, JOM, 65, 340–341.

[16] Vachon, P., Tyagi, R.D., Auclair, J.C., and Wilkison, K.J., 1994, Chemical and biological leaching of aluminium from red mud, Environ. Sci. Technol., 28 (1) 26–30.

[17] Liang, W., Couperthwaite, S.J., Kaur, G., Yan, C., Johnstone, C., and Millar, G,J., 2014, Effect of strong acids on red mud structural and fluoride adsorption properties, J. Colloid and Interface Sci., 423. 158–165.

[18] Kwon, S.K., Kimijama, K., Kanie, K., Muramatsu, A., Suzuki, S., Matsubara, E., and Waseda, Y., 2005, Effect of silicate ions on conversion of ferric hydroxideto β-FeOOH and α-Fe2O3, Mater. Trans., 46 (2), 155–158.

[19] Cava, S., Tebcherani, S.M., Souza, I.A., Pianaro, S.A., Paskocimas, C.A., Longo, E., and Varela, J.A., 2007, Structural characterization of phase transition of Al2O3 nanopowders obtained by polymeric precursor method, Mater. Chem. Phys., 103 (2-3), 394–399.

[20] Pan, F., Lu, X., Wang, T., Wang, Y., Zhang, Z., Yan, Y., and Yang, S., 2013, Synthesis of large-mesoporous γ-Al2O3 from coals series kaolin at room temperature, Mater. Lett., 91, 136–138.

[21] Yue, M.B., Xue, T., Jiao, W.Q., Wang, Y.M., and He, M.Y., 2011, CTAB-directed synthesis of mesoporous γ-alumina promoted by hydroxyl carboxylate: The interplay of tartrate and CTAB, Solid State Sci., 13 (2) 409–416.

[22] Chen, R., Yu, J., and Xiao, W., 2013, Hierarchically porous MnO2 microspheres with enhanced adsorption performance, J. Mater. Chem. A, 38, 11682–11690.

[23] Zhang, Z., Zhang, H., Zhu, L., Zhang, Q., and Zhu, W., 2016, Hierarchical porous Ca(BO2)2 microspheres: Hydrothermal-thermal conversion synthesis and their applications in heavy metals ions adsorption and solvent-free oxidation of benzyl alcohol, Chem. Eng. J., 283, 1273–1284.

[24] Kim, J.H., Jung, K.Y., Park, K.Y., and Cho, S.B., 2010, Characterization of mesoporous alumina particles prepared by spray pyrolysis of Al(NO3)2·9H2O precursor: Effect of CTAB and urea, Microporous Mesoporous Mater., 128 (1-3), 85–90.

[25] Han, C., Li, H., Pu, H., Yu, H., Deng, L., Huang, S., and Luo, Y., 2013, Synthesis and characterization of mesoporous alumina and their performances for removing arsenic(V), Chem. Eng. J., 217. 1–9.

DOI: https://doi.org/10.22146/ijc.25108

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