论文部分内容阅读
本文报道了三辛基氧化磷（ＴＯＰＯ）从高氯酸体系中萃取钯的机理。结果表明：钯的萃取率随ｐＨ的增大而增大与高氯酸根离子浓度无关。采用斜率法测得萃合物组成为：Ｐｄ·Ｌ４。萃取反应方程式为： ４ＴＯＰＯ（ｏ）＋Ｐｄ（Ａ）２＋＋２ＣＩＯ４＝〔Ｐｄ·ＴＯＰＯ４〕（ＣＬＯ４）２（０）
This paper reports the mechanism of extraction of palladium from perchloric acid system by trioctylphosphine oxide (TOPO). The results showed that the extraction rate of palladium increased with the increase of pH and had no relation with the concentration of perchlorate ion. Slope method was used to determine the composition of the extract: Pd · L4. The extraction reaction equation is: 4TOPO (o) + Pd (A) 2 ++ 2CIO4 = [Pd · TOPO4] (CLO4) 2 (0)