氯化甲基三烷基铵萃淋树脂吸萃银的性能及萃合物组成的研究

Adsorption Properties of Methyltridecyl Ammonium Chloride Levextrel Resin for Silver and Determination of Their Extractive Compound

氯化甲基三烷基铵(CL-7402)萃淋树脂是胺类萃淋树脂,含7402为40％。本文报道了该树脂在中性偏碱性体系中对银元素的静态分布系数。讨论了温度、树脂用量,振摇时间对吸附银的影响。测定了树脂吸附银的饱和容量及树脂的含氮量,由此确定吸萃物的组成比,用红外光谱探讨了该萃淋树脂吸附银的机理。在此基础上,对定影废液中的银进行了吸附与富集,取得了较好的结果。

This paper describes the adsorption properties and the composition of extractive compound for silver element extracted by CL-methyltridecyl ammonium chloride levextrel resin in the neutral and basic solution. The adsorption capacity of the resin for Ag^+ ion was 31.3 (mg/g). The content of functional group was determined by elemental analysis. The complex ratio of the resin to Ag(S_2O_3)_2^(3-) was 3:1. The mechanism of adsorption of this resin was also studied by IR spectrometry.