| 金属铟的溶剂萃取热力学研究 |
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| 引用本文： | 刘兴芝,杨家振.金属铟的溶剂萃取热力学研究[J].辽宁大学学报(自然科学版),1993,20(2):51-57. |
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| 作者姓名： | 刘兴芝 杨家振 |
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| 作者单位： | 辽宁大学化学系，辽宁大学化学系，辽宁大学化学系，辽宁大学化学系 |
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| 摘 要： | 在298.15K和离子强度为0.1～2.0moL·Kg~(-1)范围内,在较高浓度和浓酸度的萃取体系In_2(SO_4)_3—Na_2SO_4—D_2EHMTPA—n—C_8H_(18)—H_2O中,本文测定了萃取平衡。 In_(aq)~(3+)+3H_2A_(2(org))→In(HA_2)_(3(org))+3H_(aq)~+的In~(3+)的平衡浓度和水相pH值,其中Na_2SO_4为支持电解质。根据Pitzer电解质溶液理论,估算了平衡水相中的真实离子强度值,并用直线外推法和多项式拟合法确定了萃取过程的热力学平衡常数K~θ。
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| 关 键 词： | 萃取 铟 D2EHMTPA |
Studies on the Thermodynamics of the Solvent Extraction of Indium |
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| Liu Xingzhi Yang Jiazhen Kang Yanhong Son Kuiyuan.Studies on the Thermodynamics of the Solvent Extraction of Indium[J].Journal of Liaoning University(Natural Sciences Edition),1993,20(2):51-57. |
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| Authors: | Liu Xingzhi Yang Jiazhen Kang Yanhong Son Kuiyuan |
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| Institution: | Liu Xingzhi Yang Jiazhen Kang Yanhong Son Kuiyuan Department of Chemistry,Liaoning University |
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| Abstract: | In an extraction equilibrium In~(3+)(eq)+3H_2A_2 (org)=In(HA_2)_3(org)+3H~+(aq) in {In_2(SO_4)_3+Na_2SO_4+D_2EHMTPA+n-C_8H_(18)+water} the molality of In~(3+) and pH were measured at ionic strengths from 0.1 to 2.0 mol/kg, in an aqueous phase containing a supporting electrolyte Na_2SO_4 at 298.15K and with a constant original molality of extractant in the organic phase. The standard thermodynamic constants K~0 of extraction equilibrium were obtained by each of the two methods proposed in our previous paper. |
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| Keywords: | Extraction Indium Di(2-ethylhexyl) monothiophosphoric acid |
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