氟化物沉淀法净化工业硫酸锰液中的钙和镁
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赵瑾,王文华,曹军瑞,寇希元
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Purification of calcium and magnesium from industrial manganese sulfate liquid by fluoride precipitant
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Jin Zhao,Wenhua Wang,Junrui Cao,Xiyuan Kou
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表2 响应曲面模型的实验结果
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| 实验序号 | 因素水平 | | 响应值 | | pH | NaF过量系数 | 温度 | | Ca去除率/% | Mg去除率/% | | 1 | 0 | -1 | 1 | | 59.62 | 78.35 | | 2 | 0 | 0 | 0 | 74.62 | 86.38 | | 3 | 0 | 0 | 0 | 74.21 | 85.79 | | 4 | 0 | 1 | 1 | 81.47 | 92.21 | | 5 | 1 | 0 | 1 | 70.53 | 82.64 | | 6 | -1 | -1 | 0 | 55.73 | 69.24 | | 7 | 1 | 1 | 0 | 80.21 | 91.46 | | 8 | -1 | 0 | -1 | 61.74 | 72.44 | | 9 | -1 | 1 | 0 | 77.35 | 83.94 | | 10 | 1 | 0 | -1 | 73.49 | 74.54 | | 11 | 0 | 1 | -1 | 73.24 | 80.47 | | 12 | 0 | 0 | 0 | 73.96 | 86.98 | | 13 | 0 | 0 | 0 | 74.56 | 85.27 | | 14 | 0 | -1 | -1 | 60.26 | 72.43 | | 15 | 1 | -1 | 0 | 62.24 | 78.33 | | 16 | 0 | 0 | 0 | 75.13 | 86.17 | | 17 | -1 | 0 | 1 | 67.23 | 73.26 |
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