Browsing by Author "Adediran Y. A."

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    Recovery of Zinc and Manganese dioxide from spent Zn-C dry cells
    (Journal of Science, Technology and Mathematics Education (JOSTMED), 2001-04) Eterigho E. J.; Adediran Y. A.
    Hydrometallurgical process is used to recover zinc and manganese dioxide (MnO,) from spent zinc-carbon dry cell. The process, which involves electroplating of zinc and oxidation of manganese dioxide, allows for easy separation of the components. The design can produce 10kg/day of MnO, and zinc, made up of 5.38 kg. of MnO, and 4.62 kg. of zinc per day. Other metals, which are recovered in the process, include mercury, nickel and iron. The annual production cost is estimated at about A3,088,775 for a total production rate of 3000kg per year, giving a profit of N1, 651,104.69.
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    Spent Zn-C Dry Cells as a Source of Manganese
    (Nigerian Journal of Engineering and Development (NJERD), 2004) Eterigho E. J.; Adediran Y. A.
    This paper presents a possible way of enhancing the availability of raw materials for our local battery industry. Spent Zn-C dry cells were collected pre-treated and subjected to various processes like grinding. leaching, and alkalization. The method used is called the hydrometallurgical method, which allows for easy separation of the various components of the spent cell Manganese, dioxide was extracted from the spent dry cells (Zn-C) and hydrogen gas was passed over it to produce manganese metal. From the process, 5.38kg/day of manganese was recovered. This shows about 91% of manganese recovered.