TY - JOUR T1 - Karbonatlı mangan cevherinin izotermal olmayan dekompozisyon kinetiği TT - The non-isothermal kinetics of decomposition of manganese carbonate ore AU - Yıldız, Kenan AU - Apaydın, Fatih PY - 2012 DA - April Y2 - 2012 DO - 10.16984/saufbed.82028 JF - Sakarya University Journal of Science JO - SAUJS PB - Sakarya University WT - DergiPark SN - 2147-835X SP - 1 EP - 5 VL - 16 IS - 1 LA - tr AB - The non-isothermal kinetics of decomposition of manganese carbonate ore from Denizli Tavas region was studied. The ore decomposed according to a serie of reaction, MnCO3 →(400-600°C) MnO2 →(>600) Mn2O3. By using of Kissenger equation, the activation energies for the decomposition of MnCO3 to MnO2 and the transformation of MnO2 to Mn2O3 were calculated as 185,7 kJ/mol and 217,3 kJ/mol, respectively. KW - karbonatlı mangan cevheri KW - izotermal olmayan kinetik KW - dekompozisyon kinetiği CR - Sekizinci Beş Yıllık Kalkınma Planı, Madencilik Özel İhtisas Komisyon Raporu, DPT:2629, ÖİK:640, s.64-78, Ankara 2001. CR - http://www.manganese.org [3] CR - www.manganese.org, 2006 CR - MOMADE, F.W.Y., Sulfuric acid leaching of the Nsuta manganese carbonate ore, Hydrometallurgy, 40, 123-134, 1996. CR - ARSLAN, C., ARSLAN, F., DEMİR, A., Sulfuric acid leaching of manganese carbonate ores and its kinetics, 10. Uluslar arası Metalurji ve Malzeme Kongresi, Cilt.1, 13-20, 24-28 Mayıs 2005, İstanbul, Türkiye. CR - YILMAZ, M., Direct leaching of Denizli-Tavas manganese ore with sulphuric acid, MSc Thesis, METU, The Graduate School of Natural and Applied Sciences, Sept. 1998. CR - SHAHEEN, W.M., SELİM, M.M., Effect of thermal treatment on physicochemical properties of pure and mixed manganese carbonate and basic copper carbonate, Thermochimica Acta, 332, 117-128, 1998. CR - LEI, S., TANG, K., FANG, Z., LIU, Q., ZHENG, H., Preparation of α-Mn2O3 and MnO from thermal decomposition of MnCO3 and control of morphology, Materials Letters, 60, 53-56, 2006. CR - GALWEY, A.K., Is the science of thermal analysis kinetics based on solid foundations ? A literature appraisal, Thermochimica Acta, 413, 139-183, 2004. CR - CABALLERO, J.A., CONESA, J.A., Mathematical considerations for nonisothermal kinetics in thermal decomposition, J.Anal.Appl.Pyrolysis, 73, 85-100, 2005. CR - BROWN, M.E., Introduction to Thermal Analysis- Techniques and Applications, 2nd Ed., Kluwer Academic Pub., NJ,USA, 2001. – Annual Rewiev, UR - https://doi.org/10.16984/saufbed.82028 L1 - https://dergipark.org.tr/en/download/article-file/192733 ER -