碘—氨浸出体系用于废旧印刷线路板中金的浸取
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梁昌金,马传净
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Iodine-ammonia Leaching System for Leaching Gold from Waste Printed Circuit Boards
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Changjin LIANG,Chuanjing MA
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表2 金浸出率的正交试验结果及直观分析
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Table 2 Orthogonal experimental results and intuitive analysis of gold leaching rate
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| 编号 | 固液比 | I2/I-摩尔比 | KI质量浓度/（g·mL-1） | 氨水用量（体积浓度）/% | 金浸出率/% | | 1 | 1∶10 | 1∶4 | 0.05 | 1 | 62.71 | | 2 | 1∶10 | 1∶8 | 0.10 | 2 | 74.86 | | 3 | 1∶10 | 1∶12 | 0.15 | 3 | 70.42 | | 4 | 1∶10 | 1∶16 | 0.20 | 4 | 66.86 | | 5 | 1∶20 | 1∶4 | 0.10 | 3 | 80.44 | | 6 | 1∶20 | 1∶8 | 0.05 | 4 | 73.33 | | 7 | 1∶20 | 1∶12 | 0.20 | 1 | 86.95 | | 8 | 1∶20 | 1∶16 | 0.15 | 2 | 78.43 | | 9 | 1∶30 | 1∶4 | 0.15 | 4 | 80.67 | | 10 | 1∶30 | 1∶8 | 0.20 | 3 | 86.23 | | 11 | 1∶30 | 1∶12 | 0.05 | 2 | 89.13 | | 12 | 1∶30 | 1∶16 | 0.10 | 1 | 94.67 | | 13 | 1∶40 | 1∶4 | 0.20 | 2 | 96.39 | | 14 | 1∶40 | 1∶8 | 0.15 | 1 | 98.5 | | 15 | 1∶40 | 1∶12 | 0.10 | 4 | 90.67 | | 16 | 1∶40 | 1∶16 | 0.05 | 3 | 87.33 | | K1 | 68.713 | 80.053 | 78.125 | 85.708 | - | | K2 | 79.788 | 83.230 | 85.160 | 84.703 | - | | K3 | 87.675 | 84.293 | 82.005 | 81.105 | - | | K4 | 93.223 | 81.823 | 84.108 | 77.883 | - | | 极差R | 24.510 | 4.240 | 7.035 | 7.825 | - |
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