A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Comparison of Acid and Alkaline Leaching for Recovery of Valuable Metals from Spent Zinc-carbon Battery
The spent zinc-carbon batteries are composed of approximately 20% of Mn, 20% of Zn, magnetic materials and small amounts of carbon, plastics and electrolyte. Some of zinc metals in the spent battery reacted into zinc oxides and some of MnO2 reduced into Mn2O3 after discharging reaction. In this study, acid and alkaline processes of spent zinc-carbon battery are proposed and there performances are compared. In case of H2SO4, the results of zinc and manganese dissolution rates obtained by adding H2O2 were 93.3% and 82.2%, respectively at 100g/L solid/liquid ratio, 2.0M H2SO4, 60 °C and 200 rpm. In case of NaOH, the results of zinc and manganese dissolution rates obtained at 100g/L solid/liquid ratio, 4M NaOH, 80 °C and 200 r.p.m. were 82% and below 0.1% respectively. Therefore, the efficiency of selective extraction of Zn was very high.
Comparison of Acid and Alkaline Leaching for Recovery of Valuable Metals from Spent Zinc-carbon Battery
The spent zinc-carbon batteries are composed of approximately 20% of Mn, 20% of Zn, magnetic materials and small amounts of carbon, plastics and electrolyte. Some of zinc metals in the spent battery reacted into zinc oxides and some of MnO2 reduced into Mn2O3 after discharging reaction. In this study, acid and alkaline processes of spent zinc-carbon battery are proposed and there performances are compared. In case of H2SO4, the results of zinc and manganese dissolution rates obtained by adding H2O2 were 93.3% and 82.2%, respectively at 100g/L solid/liquid ratio, 2.0M H2SO4, 60 °C and 200 rpm. In case of NaOH, the results of zinc and manganese dissolution rates obtained at 100g/L solid/liquid ratio, 4M NaOH, 80 °C and 200 r.p.m. were 82% and below 0.1% respectively. Therefore, the efficiency of selective extraction of Zn was very high.
Comparison of Acid and Alkaline Leaching for Recovery of Valuable Metals from Spent Zinc-carbon Battery
Shin, Shun-Myung (author) / Kang, Jin-Gu (author) / Yang, Dong-Hyo (author) / Kim, Tae-Hyun (author) / Sohn, Jeong-Soo (author)
Geosystem Engineering ; 10 ; 21-26
2007-06-01
6 pages
Article (Journal)
Electronic Resource
Unknown
Leaching Studies of Spent Zinc-Manganese Alkaline Batteries with Sulphuric Acid
| British Library Online Contents | 2008
Selective Leaching of Zinc from Spent Zinc-Carbon Battery with Ammoniacal Ammonium Carbonate
| British Library Online Contents | 2008
| Taylor & Francis Verlag | 2002
| DataCite | 2022