CHEMICAL-MINERАLOGICAL CHARACTERIZATION OF BAUXITES FROM DIFFERENT DEPOSITS
From the aspect of their chemical and mineralogical composition, bauxites are very complex multicomponent raw materials. The paper presents the characterization of bauxite from several different deposits: Brazil, Milići, Čitluk and Kosovo. Chemical characteristics were determined by a combination of different analytical methods: gravimetry, potentiometric titration, atomic absorption spectroscopy (AAS) and UV-VIS spectrophotometry. Mineralogical composition was determined using X-ray diffraction and thermal analysis methods. Chemical and structural characterization is complemented by the results of scanning electron microscopy with EDX analysis. The information obtained was used for the assessment of the quality of investigated bauxites from the aspect of their application in the production of alumina.
 P. Petrovski, Introduction to x-ray diffraction and mineral x-ray analysis of cement, Hijatus, Zenica, 2006, 38−48.
 N. Dani, M. L. Q. Formoso, A. Decarreau, A. Meunier, Nordstrandite in bauxite derived from phonolite, lages Santa Catarina, Brazil, Clays and Clay Minerals, Vol. 49−3 (2001) 216−226.
 I. S. Cissé, J. Ge, Determination of Bauxite’s phases by the bomb digest method at Kamsar laboratory ISO 9002 (Guinea), Journal of American Science, Vol. 6−6 (2010) 139−145.
 D. Lаzić, J. Penаvin Škundrić,
Lj. Vаsiljević, S. Slаdojević, G. Ostojić, D. Mаrjаnović, The Effect of Temperature on the Degree of Leaching in Indian Bauxite, VI Scientific-expert symposium with international participation „Metal and non-metal materials”, 2006, 323−328.
 F. Feret, M. Authier-Martin, I. Sajo, Quantitative phase analysis of Bidi-Koum bauxites (Guinea), Clays and Clay Minerals, Vol. 45−3 (1997) 418−427.
 Y. V. Ramana, R. C. Patnaik, Application of thermogravimetric analysis for estimation of tri-hydrate alumina in central Indian bauxites - an alternative for classical techniques, Light Metals, (2011) 211−214.