Kwara State University
Samsudeen AZEEZ
Designation: Lecturer II
Department: Chemical Geological and Physical Science
| My Publications | ||||||||
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| S/N | Title | Abstract | Authors | Volume Numbers | Publication Type | Publication Date | Link | |
| 1 | Chemical synthesis kinetics and dimensional characterization of nano-lead oxide powder |
Systematic chemical decomposition, leaching, desulfurization, reducing and precipitation of spent lead-acid batteries to extract lead in oxide form as a valuable product using organic acid, salt of the acid, and hydrogen peroxide were studied in this present work. Citric acid was found a suitable leachant to dissolve lead. With 1 M citric acid, 2 M sodium citrate, and hydrogen peroxide, 180 min reaction time, solid/liquid ratio of 100 g/L, 30 oC temperature, and 500 rpm speed, > 97% extraction of lead in citrate form was achieved. Leaching kinetics followed 1 – 3(1 – X)2/3 + 2 (1 – X) = KCt ash diffusion controls dense constant-sized-spherical particles model with an activation energy of 8.3 kJ/mol. The precipitate was calcined at 400 oC to produce α- and β-PbO with a particle size of 19 nm which can be used as a raw material in the production of a new lead-acid battery. | 11) Ogundele, D. T, Azeez, S. O., Jimoh, A. A. | 9 | Article | 2022-01-17 | https://doi.org/10.18596/jotcsa. 928341 | |