十二烷胺萃淋树脂对银吸萃的性能及萃合物的组成

Extraction-Adsorption Property of Dodecylamine Levextrel Resin for Silver Ion and the Composition of the Extracted Compound

报道了十二烷胺萃淋树脂在弱酸性体系中对银的静态分配系数及温度、树脂用量等对吸附银的影响 ,测定了树脂吸附银的饱和容量及树脂的含氮量 ,由此确定萃合物的组成比 ,并用等摩尔系列法、斜率法、红外光谱等方法探讨了该树脂吸萃银的组成 .在此基础上 ,对银的柱上操作进行了研究 。

The extraction adsorption property of dodecylamine(N 12 ) levextrel resin in weak acid solution towards silver ion and the composition of the extracted species have been studied. The adsorption capacity of the resin for silver ion was 120 3 mg/g. The ratio of N 12 to silver in extracted species was near 1∶1. The N 12 resin could be used repeatedly. The mechanism of the extraction adsorption has been discussed briefly based on the IR results.