Obtaining a filler based on limestone from the deposit "Glavatske Kuće"-Kotor, for use in various industrial branches

Abstract

This paper presents results of investigations of the possibility of using “Glavatske Kuće”-Kotor limestone (Republic Montenegro) as filler in various industry branches. Micronization methods, granulometric composition, oil and water absorption and degree of whiteness were investigated, and chemical and thermal analyses (DT/TG) were performed. Physico-chemical properties of this limestone classify it among high quality carbonate raw materials with high CaCO3 content of 97,68%, as well as MgO content of 0,884% and low silicate content (SiO2 0,240%). The quality of this limestone meets the requirements of the standards for the use of calcium carbonate as a filler in the following industries: paints and coatings; glass, foundry, and sugar industry as well as metallurgy. Due to the low degree of whiteness (77,85%), limestone "Glavatska kuće" cannot be used in the paper and cosmetic-pharmaceutical industry. The high content of Cd is also unacceptable for the cosmetic-pharmaceutical industry. Due to the high content of Cu, this limestone cannot be used in the production of rubber and PVC. Due to the increased content of MgO, this limestone cannot be used in the production of mineral fertilizers. Due to the relatively high content of biogenic elements MgO, P2O5, K2O, Cu, and heavy metals Ni and Cd, limestone Glavatske Kuće”-Kotor cannot be used, in production of cattle feed and for neutralization of acidic soils.