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主要研究了从锇铱矿的锇钌蒸残液中通过刚果红离子缔合型负载形成树脂分离贵贱金属的条件。此种研究尚未见报道.于 pH1.0的盐酸介质中,缔合吸附于刚果红负载形成树脂上的 Au,Pd,Pt,Rh 用 pH1.0的5%的硫脲-HCI 洗脱剂洗脱,回收率均在96%～104%。此酸度下大量贱金属以阳离子存在不被吸附而流出除去.残留于柱上的少数少量贱金属可用 pH1.0的 HCI 淋洗除去.通过于锇铱矿的锇钌蒸残液中加标准回收实验和方法检验,获得满意结果,RSD 在1.22%～3.32%之间。
In this paper, the conditions for the separation of precious metals from osmium ruthenium residues in osmium iridium mine by the Congo red ion-association loading resin were studied. This study has not been reported in the pH1.0 hydrochloric acid medium, associative adsorption on Congo red-loaded resin forming Au, Pd, Pt, Rh with thiourea-HCl 5% eluent pH1.0 Off, recovery rates were 96% to 104%. The acidity of a large number of base metals in the presence of cation is not adsorbed and outflow.A small amount of residual base in the column with a small amount of base metal HC1 rinse with pH1.0 by osmium iridium ore osmium ruthenium residue plus standard recovery Experiments and methods to test, to obtain satisfactory results, RSD between 1.22% ~ 3.32%.