Research Article
Extraction of Zinc and Manganese from Alkaline and Zinc-Carbon Spent Batteries by Citric-Sulphuric Acid Solution
Table 7
Second series of leaching experiments: concentrations and extraction yields.
| Test | Zn concentration (g ) | Zn extraction yield (%) | Mn concentration (g ) | Mn extraction yield (%) |
| 1 | 35.0 | 79.1 | 23.4 | 41.1 | 2 | 42.3 | 95.6 | 39.1 | 68.6 | 3 | 36.1 | 81.5 | 20.6 | 36.2 | 4 | 39.9 | 90.2 | 46.9 | 82.3 | 5 | 38.1 | 51.6 | 25.9 | 27.2 | 6 | 50.3 | 68.2 | 47.1 | 49.5 | 7 | 32.5 | 44.1 | 32.2 | 33.9 | 8 | 43.5 | 59.0 | 43.4 | 45.7 | 9 | 28.9 | 65.3 | 26.0 | 45.6 | 10 | 41.7 | 94.2 | 42.0 | 73.6 | 11 | 30.2 | 68.3 | 28.9 | 50.7 | 12 | 38.2 | 86.4 | 43.4 | 76.1 | 13 | 42.1 | 57.1 | 20.4 | 21.5 | 14 | 55.4 | 75.2 | 45.2 | 47.6 | 15 | 42.7 | 57.8 | 25.5 | 26.8 | 16 | 55.8 | 75.6 | 54.1 | 56.9 | 17 | 27.2 | 46.1 | 10.5 | 13.8 | 18 | 49.2 | 83.4 | 53.7 | 70.6 | 19 | 52.9 | 89.7 | 15.3 | 20.2 | 20 | 33.6 | 57.1 | 38.8 | 51.1 | 21 | 26.8 | 90.9 | 30.9 | 81.3 | 22 | 42.8 | 48.3 | 32.7 | 28.7 | 23 | 37.0 | 62.7 | 32.7 | 43.0 | 24 | 43.7 | 74.1 | 36.3 | 47.8 | 25 | 37.0 | 62.8 | 32.6 | 42.9 | 26 | 39.6 | 67.1 | 33.2 | 43.7 | 27 | 40.7 | 69.0 | 38.8 | 51.1 | 28 | 39.8 | 67.5 | 33.3 | 43.8 |
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