5/25/2023 0 Comments Plot map odishaThe concentration of critical REEs varied in the range of 100–300 ppm, and outlook coefficient (C outl) ranged from 0.7 to 1.0, demonstrating our coal seams' suitability as a promising source of REEs. The average concentration of REEs in the four boreholes was found to be 510 ppm, with the distribution pattern being Ce > La > Nd > Y > Pr > Sc > Sm > Gd > Dy > Er > Yb > Eu > Ho > Tb > Tm > Lu. The corresponding ash samples were examined using X-ray Diffraction (XRD), X-ray Fluorescence (XRF), Electron Probe Microanalyzer (EPMA), and Inductively Coupled Plasma Mass Spectrometry (ICP-MS).The coal ash samples were delineated to be rich in SiO 2 (42–65%) along with a lower proportion of Al 2O 3 (24–41%), Fe 2O 3 (5–6%), and TiO 2 (1–2%). A total of 85 coal samples from four boreholes were characterized using proximate analysis and calorific value measurements. This study aims to thoroughly examine the distribution, concentration, and occurrence of a broad selection of REEs and major elements in coal samples from Samaleswari coal block, IB valley, Odisha, India using advanced geochemical tools.
0 Comments
Leave a Reply. |