摘要
萃淋树脂CL—5401系烷基氧膦类萃取剂固化而得白色无臭无味的球状固体。在盐酸和硫酸及其混合溶液中,在较宽的酸度以及有大量贱金属存在情况下,应用CL—5401萃淋树脂有效分离贵金属与贱金属。Au、Pd、Pt的吸萃大于99％,Ir大于97％,贱金属不被吸萃。应用CL—5401分离铂铱,钯铱、铑铱、铂铑和钯铑等混合液,效果显著,是粗铑纯化的有效方法之一。还可以从铂、金、钯的精炼母液中回收贵金属,减少沉淀法中的贵金属渣再溶解过程。
CL—5401 resin can be used to separate precious metals with base metals in HCl and/or H_2SO_4 media in wide acidity range. More than 99% adsorption extraction of gold, platinum, and palladium, and 94% adsorption extraction of iridium were achieved. While the base metals were almost not adsorbed. It has been applied for the separation of platinum from iridium, palladium from iridium, rhodium from iridium, and for the purification of impurified rhodium.
出处
《贵金属》
CAS
CSCD
北大核心
1993年第1期9-15,共7页
Precious Metals
关键词
贵金属
分离
离子交换树脂
Precious metals, Separation, Ion exchange resin
