Characterization and Beneficiation of Coal by Flotation in Sheka Zone Andiracha Woreda Shekibado Kebele, South West Ethiopia
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Date
2025-05
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Addis Ababa University
Abstract
This project successfully characterized and beneficiation by flotation of the coal founding in Sheka Zone Andiracha Woreda, using the proximate analysis and calorific value analysis method for coal detection and evaluation. The study focuses on the characterization and beneficiation of coal using proximate analysis and flotation methods. The parameters for flotation test method are affected by a number of physical and chemical factors, including type and dosage of reagents, pulp, particle size, impeller speed, froth depth, among many other during laboratory experiment. The flotation process can be done with the collector dosages (5ml to 10ml), frother dosages (2ml to 4ml) and particle size (-250 μm +125μm -75μm). Proximate analysis after and before treatment, which includes moisture, ranges from 5.27% to 13.64%, ash content range from 41.15% to 47.69%, volatile matter content ranges from30.46% to 23.46%, and fixed carbon content ranges from 23.13 to 15.22%, is essential for determining coal quality. The calorific value is most crucial component to determine the grade coal which is before flotation value 4002.21BTU/Ib and after flotation value is 6587.05BTU/Ib. The analysis highlights the relationship between coal ranks and calorific value, a critical indicator of energy efficiency and economic potential. By combining proximate analysis with optimized flotation processes, the study provides insights into enhancing the economic and environmental performance of coal from the study area.
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coal character, coal flotation, operating factor, and calorific value