Abstract

Dependencies for the sorption of palladium(II), gold(III), and platinum(IV) chloro complexes from individual and binary solutions with sorbents based on sulfoethylated polyallylamine and poly(aminostyrene) have been obtained. It has been found that predominant sorption mechanism is complexation with functional groups of the sorbents for gold(III) and palladium(II) and ion exchange for platinum(IV). It has been shown that increase in the sulfoethylation degree of aminopolymer matrix leads to decrease of platinum(IV) sorption and therefore, to increase in palladium(II) sorption selectivity relative to this ion. This effect is the largest for the sorbents based on polyallylamine. The conditions of quantitative desorption of the studied metals from sorbent surface have been determined. The sorption of gold(III) by the sorbent based on polyallylamine has been shown to be complicated by gold(III) reduction in sorbent phase.

中文翻译：

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磺乙基化氨基聚合物吸附富集贵金属离子的特点

摘要

已经获得了使用基于磺乙基化聚烯丙胺和聚（氨基苯乙烯）的吸附剂从单独和二元溶液中吸附钯 (II)、金 (III) 和铂 (IV) 氯络合物的依赖性。已经发现，主要的吸附机制是与金 (III) 和钯 (II) 吸附剂的官能团络合以及铂 (IV) 的离子交换。已经表明，氨基聚合物基质磺乙基化度的增加导致铂 (IV) 吸附的降低，因此，钯 (II) 相对于该离子的吸附选择性增加。这种影响对于基于聚烯丙胺的吸附剂来说是最大的。已确定从吸附剂表面定量解吸所研究金属的条件。