Study on the behavior of impurity removal from lithium iron phosphate slag using the ultrasonic-assisted sulphuric acid leaching. J Min & Metal B Metallurgy [Internet]. 2024 Feb. 7 [cited 2026 Jun. 11];60(1):59-70. Available from: https://test.aseestant.ceon.rs/index.php/jmm/article/view/45914