Oxidative Leaching of Akpugo Kaolinite for Alumina Recovery and Kinetic Modeling

Two-step leaching of spent lithium-ion batteries and effective regeneration of critical metals and graphitic carbon employing hexuronic acid

“…Nnanwube et al proposed alumina leaching with HNO 3 and the findings revealed that nitric acid showed a better efficiency for alumina leaching. 64–66 The result was supported by XRD analysis (Fig. 13a) and the concentration of alumina was checked by ICP-OES.…”