Optimum volume fraction of extractant B in binary-extractant is 60%-80%, and the highest cooperate coefficient is 1.28, which exists in this range.

萃取剂体系中萃取剂B的适宜体积分数为60％—80％，且在该浓度范围内有协萃效应，最大协萃系数1.28。

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Optimum volume fraction of extractant B in binary-extractant is 60%-80%, and the highest cooperate coefficient is 1.28, which exists in this range.

萃取剂体系中萃取剂B的适宜体积分数为60％—80％，且在该浓度范围内有协萃效应，最大协萃系数1.28。

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