本文研究了在碘化钾、醋酸存在下,聚氨酯泡沫塑料对Pd、Au及其他非贵金属离子的吸附行为,以及在醋酸体系中Pd和Au的分离条件。在碘化钾及醋酸体系中,Pd和Au的吸附率均在98％以上。 在醋酸体系中,用聚氨酯泡沫塑料将Pd和Au从大量非贵金属中富集,而后用4NHCl可将Pd定量洗脱达到Pd与Au的分离,最后用1％硫脲洗脱回收Au。 In this paper, the adsorption behavior of polyurethane foam on Pd, Au and other non-noble metal ions in the presence of potassium iodide and acetic acid and the separation conditions of Pd and Au in acetic acid system were studied. In potassium iodide and acetic acid system, Pd and Au adsorption rates are above 98%. In acetic acid system, Pd and Au were enriched from a large amount of non-precious metal with polyurethane foam, and then Pd was eluted with 4N HCl to achieve the separation of Pd from Au. Finally, Au was recovered by 1% thiourea.