Ion exchange recovery of palladium (II) from nitrate weak acidic solutions

• 作者: Nataliya G. Goryaeva Olga N. Kononova Olga V. Dychko
• 来源期刊: 自然科学期刊(英文)
• 学科: 化学
• 关键词: PALLADIUM Ion Exchange ANION EXCHANGERS NITRATE SOLUTIONS
• 年，卷（期）: zrkxqkyw_2009,（3）
• 页码范围: 166-175
• 页数: 10页
• 分类号: O6

摘要

Sorption recovery of palladium (II) from nitrate weak acidic model solutions and solutions of spent catalysts on some ion exchangers with different physical and chemical structure has been investigated. The palladium concentration in contacting solutions was 5.0 ? 10-5 – 1.0 ? 10-3 mol/L at nitric acid and potassium nitrate con-centrations 0.01 and 1.0 mol/L, respectively. It was shown that anion exchangers AV-17-8 as well as Purolite S 985 and A 500 possess the best sorption and kinetic properties. These sorbents can be recommended for selective recovery of palladium from solutions of spent catalysts.