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3 响应曲面模型的方差分析
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| 项目 | Ca去除率 | | Mg去除率 | | 平方和 | 自由度 | 均方 | F值 | P值 | | 平方和 | 自由度 | 均方 | F值 | P值 | | 模型 | 944.32 | 9 | 104.92 | 67.66 | ＜0.00 01 | | 760.74 | 9 | 84.53 | 31.35 | ＜0.000 1 | | X1 | 74.54 | 1 | 74.54 | 48.07 | 0.000 2 | 98.63 | 1 | 98.63 | 36.58 | 0.000 5 | | X2 | 692.29 | 1 | 692.29 | 446.39 | ＜0.000 1 | 309.13 | 1 | 309.13 | 114.65 | ＜0.000 1 | | X3 | 12.80 | 1 | 12.80 | 8.25 | 0.023 9 | 88.31 | 1 | 88.31 | 32.75 | 0.000 7 | | X1X2 | 3.33 | 1 | 3.33 | 2.15 | 0.186 2 | 0.62 | 1 | 0.62 | 0.23 | 0.647 2 | | X1X3 | 17.85 | 1 | 17.85 | 11.51 | 0.011 6 | 13.25 | 1 | 13.25 | 4.91 | 0.062 2 | | X2X3 | 19.67 | 1 | 19.67 | 12.68 | 0.009 2 | 8.47 | 1 | 8.47 | 3.14 | 0.119 7 | | X12 | 38.07 | 1 | 38.07 | 24.54 | 0.001 6 | 116.51 | 1 | 116.51 | 43.21 | 0.000 3 | | X22 | 28.61 | 1 | 28.61 | 18.45 | 0.003 6 | 0.056 | 1 | 0.056 | 0.021 | 0.889 5 | | X32 | 44.25 | 1 | 44.25 | 28.53 | 0.001 1 | 111.14 | 1 | 111.14 | 41.22 | 0.000 4 | | 残差 | 10.86 | 7 | 1.55 | | | 18.87 | 7 | 2.70 | | | | 失拟项 | 10.07 | 3 | 3.36 | | | 17.23 | 3 | 5.74 | | |
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