کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7736105 | 1497962 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical evaluation of manganese reducers - Recovery of Mn from Zn-Mn and Zn-C battery waste
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Extraction of manganese from ores or battery waste involves the use of reductive reagents for transformation of MnO2 to Mn2+ ions. There are many reducers, both organic and inorganic, described in the literature. A series of 18 reducers has been discussed in the paper and they were classified according to standard redox potential (pEÂ =Â âlog aeâ where pE is used to express formal electron activity and ae- is formal electron activity). The experiments of manganese extraction from paramagnetic fraction of Zn-C and Zn-Mn battery waste in the laboratory scale have been described for 3 reducers of different origin. The best result was achieved with oxalic acid (75%, with the lowest redox potential) and urea (with typical redox potential) appeared inactive. Extraction supported by hydrogen peroxide resulted in moderate yield (50%). It shows that formal thermodynamic scale is only preliminary information useful for selection of possible reducers for manganese extraction resources.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 270, 15 December 2014, Pages 668-674
Journal: Journal of Power Sources - Volume 270, 15 December 2014, Pages 668-674
نویسندگان
Agnieszka Sobianowska - Turek, WÅodzimierz Szczepaniak, Monika ZabÅocka-Malicka,