Isotherms of Ge(IV) and Cu(II) ions sorption on to the weakly basic anion-exchange resin AN-31 from chloride solutions have been constructed and described. The dependence of equilibrium parameters of Ge(IV) and Cu(II) ions sorption from chloride ions concentration was shown. Based on the electron spectra of diffuse reflectance of copper-containing sorbent, isotherms of sorption and isomolar copper–germanium ions distribution diagram in solutions with different chloride concentrations the nature of extracted particles has been established, and the effect of the mineral background on the sorbent capacity has been determined. The synergistic effect of Cu(II) ions sorption in the presence of Ge(IV) ions has been established. It was found that the ionic and uncharged associates formed by hydroxy-chloride polynuclear cuprate(II) cations and methagermanate anions extract from the chloride solutions onto AN-31. The possibility of selective Cu(II) ions sorption from germanium containing 1 M chloride solutions in wide range of Ge(IV):Cu(II) molar ratios from 1:3 to 1:1 has been established.

中文翻译：

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阴离子交换树脂AN-31上氯化物溶液吸附锗（IV）和铜（II）离子的平衡

已经构建并描述了从氯化物溶液吸附到弱碱性阴离子交换树脂AN-31上的Ge（IV）和Cu（II）离子的等温线。显示了Ge（IV）和Cu（II）离子吸附平衡参数与氯离子浓度的关系。根据含铜吸附剂的漫反射电子光谱，吸附等温线和等浓度铜-锗离子在不同氯化物浓度溶液中的分布图，建立了萃取颗粒的性质，以及矿物背景对吸附剂的影响容量已确定。已经建立了在Ge（IV）离子存在下Cu（II）离子吸附的协同效应。发现由羟基氯化物多核铜酸盐（II）阳离子和甲基锗酸根阴离子形成的离子缔合和不带电缔合物从氯化物溶液中提取到AN-31上。已经确定了从锗（含1 M氯化物溶液）以1：3至1：1的宽摩尔比范围选择性吸附Cu（II）离子的可能性。