Production of SrCO3 and (NH4)2SO4 by the dry mechanochemical processing of celestite

Deniz Bingol; Salih Aydogan; Seda Karayunlu Bozbas

Journal of Industrial and Engineering Chemistry, Vol.18, No.2, 834-838, March, 2012

DOI10.1016/j.jiec.2011.11.145 Export Citation

Production of SrCO3 and (NH4)2SO4 by the dry mechanochemical processing of celestite

Deniz Bingol^†, Salih Aydogan¹, and Seda Karayunlu Bozbas

Chemistry Department, Kocaeli University, 41380 Kocaeli, Turkey
¹Mining Engineering Department, Selcuk University, 42075 Konya, Turkey

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A SrCO3 formation starting from activated SrSO4.(NH4)2CO3 mixtures as a result of dry mechanochemical treatment for 180 min in a planetary ball mill of celestite together with (NH4)2CO3 was studied. The phases that formed during milling were successfully characterized by X-ray diffraction measurement(XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and chemical analysis. A novel hydrometallurgical process to convert both SrCO3 (product) and (NH4)2SO4 (by-product) from celestite via dry mechanochemical conversion with (NH4)2CO3 was developed for the first time in this work. Under optimum conditions, the conversion of SrCO3 was 98.1%. The (NH4)2SO4 leach solution was crystallized.

Keywords:Chemical processes;Ion exchange;Leaching;Optimization;Conversion;Celestite

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[2] Erdemog˘lu M, Canbazog˘lu M, Hydrometallurgy., 49, 135 (1998)

[3] Erdemog˘lu M, Canbazog˘lu M, Yalc¸ın H, Miner. Process. Ext. Metall. (Trans. IMM, Sec. C)., 107, 65 (1998)

[4] Owusu G, Litz JE, Hydrometallurgy., 57, 23 (2000)

[5] Beg M, Arshad A, Khan SA, Hasan N, Pak. J. Sci. Ind. Res., 29, 217 (1986)

[6] Iwai M, Toguri JM, Hydrometallurgy., 22, 87 (1989)

[7] Castillejos AH, delaCruz FP, Uribe A, Hydrometallurgy., 40, 207 (1996)

[8] Bingol D, Aydogan S, Gultekin SS, Chem. Eng. J., 165(2), 617 (2010)

[9] De Buda F, US Patent 4,666,688 (1987)

[10] Cheng Z, Jiang T, Huadong Huagong Xueyuan Xueba., 18, 723 (1992)

[11] Di H, Wang Y, Zhang Y, Chine HC Patent 1.078.706 (1993)

[12] Piedrafita PA, EP0495937 (1991)

[13] Kocakusak S, Tolun R, Dog˘an H, Koral M, Akc¸ay K, Ko¨ rog˘lu HJ, WIPO Patent WO/2001/077021 (2001)

[14] Kacar B, Katkat AV, Fertilizers and Fertilization techniques, 2nd edn, Nobel, Ankara, 2007, , ISBN: 978-9944-77-159-7.

[15] Zhang Q, Saito F, Chem. Eng. J., 66, 79 (1997)

[16] Obut A, Balaz P, Girgin I, Miner. Eng., 19, 1185 (2006)

[17] Erdemog˘lu M, Aydog˘an S, Canbazog˘lu M, Hydrometallurgy., 86, 1 (2007)

[18] Setoudeh N, Welham NJ, Azami SM, J. Alloys Compd., 492, 389 (2010)

[19] Sua´rez-Orduna R, Rendo´ n-Angeles JC, Yanagisawa K, Int. J. Miner. Process., 83, 12 (2007)

[20] Sua´rez-Orduna R, Rendo´ n-Angeles JC, Lo´ pez-Cuevas L, Yanagisawa K, J. Phys. Condens. Matter., 16, S1331 (2004)

[21] Lo´ pez-Valdivieso A, Robledo-Cabrera A, Uribe-Salas A, Int. J. Miner. Process., 60, 79 (2000)