Quality Analysis of Limestone for the Raw Material of Cement Making Industry in Tangofa Village, Bungku Pesisir Sub-district, Morowali Regency

Muhamad Hardin Wakila; Suriyanto Bakri; Nur Ilahi Syam

doi:10.58227/jge.v2i2.121

Authors

Muhamad Hardin Wakila Universitas Muslim Indonesia
Suriyanto Bakri Universitas Muslim Indonesia
Nur Ilahi Syam Department of Mining Engineering, Faculty of Industrial Technology, Universitas Muslim Indonesia

DOI:

https://doi.org/10.58227/jge.v2i2.121

Keywords:

Limestone, cement raw material, petrography, XRD, XRF

Abstract

Morowali Regency, Central Sulawesi Province is one of the largest nickel laterite producing areas in the world, on the other hand this area also has abundant limestone potential, one of the areas that has limestone potential is the Tangofa Area, Morowali Regency. The absence of information related to the chemical composition of limestone in the area is the basis for this research. The purpose of this study was to determine the elemental and mineral content of limestone and to determine the quality of limestone as cement raw material based on CaO and MgO content. The research method was carried out with several stages, namely: literature study, field data collection, and laboratory analysis (Petrography, XRD, and XRF). From the results of petrographic analysis, it can be seen that the constituent minerals of limestone in the research area are calcite and quartz minerals, as well as the results of XRD analysis, which show the presence of calcite minerals that dominate the entire sample with a percentage reaching 100%. The results of analysis with the XRF method can be known oxide compounds constituent limestone in the study area are: CaO, MgO, K₂O, PbO, Nb₂O₅, CuO, Sb₂O₃, RuO₄, SnO₂, and In₂O₃. Rh₂O₃, TiO₂, PdO, and Ag₂O. The CaO content of the three samples has a percentage of >48%, while the average MgO content does not exceed 6%, so it can be concluded that the limestone in the study area has good quality for cement raw materials.

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