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Structural and morphological characterization ofThai monazite ore processing samples |
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| รหัสดีโอไอ | |
| Creator | 1. Sasikarn Nuchdang 2. Wilasinee Kingkam 3. Vichai Puripunyavanich 4. Unchalee Suwanmanee 5. Pipat Laowattanabandit 6. Dussadee Rattanaphra |
| Title | Structural and morphological characterization ofThai monazite ore processing samples |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 6 |
| Page no. | 1743-1750 |
| Keyword | monazite ore processing, structural, morphological, characterization, rare earth element |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Monazite ore is mainly composed of rare earth elements (such as Ce, Nd, La, etc.). These rare earth elements arewidely used in several high technology and industrial products. Thailand Institute of Nuclear Technology has performed researchon the separation and purification of rare earth elements from Thai monazite ore for supporting industrial applications. In thiswork, the raw material, intermediate and by-product samples obtained from Thai monazite ore processing were characterized byvarious physicochemical techniques (WDXRF, XRD and SEM-EDS) for understanding their structural and morphologicalcharacteristics. The WDXRF analysis showed that the monazite ore sample contained primarily cerium (30.37 wt% of CeO2)which matched well with the XRD result. An increase in CeO2 concentration up to 39.19 wt% and 64.62 wt% in the intermediatemixed rare earth and cerium hydroxide cake samples were observed after alkali digestion and nitric acid leaching of monaziteore, respectively. No rare earth elements could be detected in the tri-sodium phosphate by-product. Thorium oxide at 6.34% inuranium cake sample was observed. A considerable amount of NaOH in thorium cake sample was noticed. |
