Bisrat Kebede (PhD)Mamaru Genetu (Mr.) Co-AdvisorTaju Mohammed2025-06-182025-06-182025-05https://etd.aau.edu.et/handle/123456789/5593Enhancing the recovery of lithium from its ores is vital for supporting the growing demand for lithium-ion batteries used in electric vehicles and energy storage systems. This research investigates the beneficiation of lithium ore from Ethiopia’s Harar region through the froth flotation method, focusing on how varying reagent dosages affect flotation performance. Flotation tests were carried out by adjusting the amounts of collectors, frothers, and activators to study their effects on both the yield (concentration weight) and the purity (grade) of the lithium concentrate. The findings indicate that the amount of reagents used significantly influences flotation efficiency. The optimal result was obtained in experiment number 3, which used 5 mL of frother, 7 mL of collector, and 10 mL of activator, achieving the highest concentration weight. A steady increase in concentrate yield was observed from the first to the third experiment, followed by a decline through the ninth experiment. These results highlight the importance of precise reagent dosage control to maximize both the quantity and quality of lithium recovery. The study offers practical insights into improving the effectiveness and sustainability of lithium ore processing in the Harar region.en-USBeneficiationFrothersLithiumHarar