摘要
由于铀溶液中的硝酸根对阴离子交换树脂具有较强的亲合力,相当低的硝酸根就足以干扰硫酸铀酰离子的吸附。利用一种高效吸附硝酸根的阴离子交换树脂吸附铀溶液中的硝酸根,再用NaOH溶液解吸,淋洗合格液中ρ(NO3-)达60g/L左右。试验结果表明,用N 3树脂对铀溶液中的硝酸根进行吸附,可以实现从铀溶液中回收硝酸根的技术要求。
Nitrate of low concentration can interfere with adsorption of uranyl sulfate anion on anion-exchange resins because the anion-exchange resins have a stronger affinity for nitrate in uranium solution. Nitrate can be adsorbed with a high efficiency resin, then desorbed by sodium hydroxide. The nitrate concentration is about 60 g/L in eluate. The research results show that nitrate can be recovered from uranium solution with N-3 anion-exchange resin.
出处
《铀矿冶》
CAS
2004年第2期73-77,共5页
Uranium Mining and Metallurgy
