| Autor: |
Hwidi, Rajeb Salem, Tengku Izhar, Tengku Nuraiti, Mohd Saad, Farah Naemah, Dahham, Omar S., Noriman, N. Z., Shayfull, Z. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2018, Vol. 2030 Issue 1, p020027-1-020027-7, 7p, 2 Charts, 4 Graphs |
| Abstrakt: |
In this work, the quicklime (CaO) was produced from the thermal decomposition of the limestone (CaCO3) using a lab kiln at 700, 900 and 1100 °C temperature. Furthermore, the effect of these different temperature on the mineralogical, chemical, physical and morphological properties of the produced CaO were investigated using X-Ray Fluorescence (X-RF), X-Ray Diffraction (X-RD), Fourier-Transform Infrared Spectroscopy (F-TIR) and Scanning Electron Microscope (SEM). Results show that the CaO content has slightly increased as temperature increases indicating that the purity of sample increased. FTIR shows that all samples have strong characteristic bands at 1,472 cm-1 and also at 912 cm-1, which are belong to the two different elongation modes of C-O bonds. However, the samples show O-H bond at 3,696 - 3698 cm-1 due to the low concentration of Ca(OH)2 in the sample. Several distinctive peaks are observed in XRD results indicating that the presence of calcite and quartz in the samples. The increase of temperature improved the particles size distribution of the samples and appeared more homogeneous. However, some relief lines on the surfaces of CaO particles are observed as high temperature (1100 °C) uses. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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