Dissolution Kinetics of Calcinated Manganese Ore in Acetic Acid Solutions

Abstract

Keywords

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Dissolution Kinetics of Calcinated Manganese Ore in Acetic Acid Solutions

Abstract

Bu çal mada, Denizli-Tavas yöresinden temin edilen mangan cevheri ilk olarak 700 oC de bir saat kalsine edildi. Kalsine mangan cevherinin seyreltik asetik asit çözeltileri içindeki çözünme oran üzerine s cakl k, kat /s v oran , reaksiyon süresi, kar t rma h z , tanecik boyutu ve asit konsantrasyonunun etkileri incelendi. Reaksiyon s caklkat /s v oran n n azalmas yla çözünme oran n n artt birinci mertebeden reaksiyon modeline uydu u ve reaksiyona ait aktivasyon enerjisi 25.51 kJ.mol-1 olarak hesaplanm t r

Keywords

• Mangan cevheri, kalsinasyon, çözünme kineti i, asetik asit

References

1. [1] Yarta , A., Çopur, M. and Kocakerim, M.M., Dissolution Kinetics of Manganese Ore in Water Saturated with Sulphur Dioxide , Chemica Acta Turcica, 25, 53-58, (1997).
2. [2] Housmanns, S., Laufenberg, G. and Kunz, B., Rejection of Acetic Acid and Its Improvement by Combination with Organic Acids in Dilute Solutions Using Reverse Osmosis , Desalination, 104,95-98, (1996).
3. [3] Veeken, A. H. M. and Hamelers, H. V. M., Removal of Heavy Metals from Sevage Sludge by Extraction with Organic Acid , Water Science and Technology, 400, 129-136, (1999).
4. [4] Bilgiç, S., The Inhibition Effect of Benzoic Acid Salicylic Acidon the Corrosion of Steel in Sulfuric Acid Medium , Material Chemistry and Physics, 76, 52-58, (2002).
5. [5] Abbruzzese, C., , Percolation Leaching of Manganese Ore by Aqueous Sulphur Dioxide , Hydrometallurgy, 25, 85-90, (1990).
6. [6] Yarta , A., Kocakerim, M. M.; Özmetin, C. and Abal , Y., , Dissolution of Braunite in Sulfuric Acid Solution , Mineral Engineering, Vol. 9, No 12, pp. 1269-1272, (1996).
7. [7] Abal , Y., Dissolution Kinetics of Calcinated Magnesite in Acetic Acid Solutions , Energy, Education, Science and Technology Vol.1., pp (67- 74), (1998).
8. [8] Raisoni, P. R. and Dixit, S. G., Leaching of MnO2 with Mixed Non-Aqueous Solvent Dimethyl-Sulfoxide Sulfur-Dioxide , Journal of Chemical Technology and B otechnology, 42 (3): 167-182, (1988).

9. [9] Grimanelis, D.; Neou-Syngouna, P.; Vazarlis, H., Leaching of a Rich Greaek Manganese Ore by Aqueous Solutions of SO2 , Hydrometallurgy, 31, 139-146, (1992).
10. [10] Jensen, D.L.; Boddum, J.K.; Tjell, J.C.; Christensen, T.H., The solubility of Rhodochrosite (MnCO3) and Siderite (FeCO3) in Anaerobic Aquatic Environments , Appl ed Geochem stry, 17 (4): 503-511, (2002).
11. [11] Luo,Y.X. and Millero, F. J., Solubility of Rhodochrosite (MnCO3) in NaCl Solutions , Journal of Solution Chemistry, 32 (5), 405-416, (2003).
12. [12] Lebron, I.and Suarez, D.L., Mechanisms and Precipitation Rate of Rhodochrosite at 25 Degrees C as Affected by P-CO2 and Organic Ligands , Soil Science Society of America Journal, 63 (3), 561-568, (1999).
13. [13] Furman, N. H., , Scott's Standard Methods of Chemical Analysis , Vol. 1, Van Nostrand, New York, 6th ed., 798-865, (1963).
14. [14] Wen, C. Y., Non-catalytic Heteregenous Solid-Fluid Reaction Models , ,Ind. and Eng. Chem., 60 (9), 34-54, (1968).
15. [15] Levenspiel, O., Chemical Reaction Engineering , 2nd ed. ; John Wiley and Sons: New York, 357-377, (1972).