| CuSO4-氨化P507-n-C6H14体系平衡常数的计算 |
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| 引用本文： | 崔丹,段淑红,孙铁.CuSO4-氨化P507-n-C6H14体系平衡常数的计算[J].高等学校化学学报,1998,19(4):598-602. |
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| 作者姓名： | 崔丹 段淑红 孙铁 |
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| 作者单位： | 1. 黑龙江大学化学化工系, 哈尔滨, 150080;
2. 哈尔滨市环境监测中心站, 哈尔滨, 150076 |
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| 摘 要： | 用热力学方法研究了酸性磷萃取剂与金属体系间的平衡计算模型,萃取体系的水相采用Pitzer半经验公式求算γCu2+,有机相用热力学关系求出了水、正已烷和萃取剂的活度系数.实验结果用Scatchard-Hildebrand模型关联,并经回归处理,得到了萃取反应热力学平衡常数(K=1.26×10-7～5.26×10-7)及萃合物的活度系数.
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| 关 键 词： | 萃取平衡常数 活度系数 P507萃取剂 |
| 收稿时间： | 1996-12-23 |
| 修稿时间： | 1996年12月23日 |
The Calculation of Thermodynamic Equilibrium Constant in CuSO4-aminate P507-n-C6H14 System |
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| CUI Dan,DUAN Shu-Hong,SUN Tie.The Calculation of Thermodynamic Equilibrium Constant in CuSO4-aminate P507-n-C6H14 System[J].Chemical Research In Chinese Universities,1998,19(4):598-602. |
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| Authors: | CUI Dan DUAN Shu-Hong SUN Tie |
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| Institution: | 1. Department of Chemistry and Chemical Engineering, Heilongjiang University, Harbin, 150080;
2. Environmental Monitor Centre of Harbin, Harbin, 150076 |
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| Abstract: | The thermodynamic equilibrium model of acidic phosphoric extractant and metal system was studied with thermodynamic method. The activity coefficients of the components such as water, C6H14, extractant in organic phase can be calculated according to the thermodynamic relation, and γCu2+ can be estimated according to Pitzer's equation. The experimental data can be used to correlate and solved on computer. The results showed that the thermodynamic equilibrium constant Kwas in the range of 1.62×10～7 ～5.26×10-7 and the activity coefficients of the components were achieved. |
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| Keywords: | Extractive equilibrium constant Activity coefficient P 507 extractant |
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