含氨基膦酸螯合树脂的合成及其在铀提取中的性能研究  

Synthesis of a chelate resin with amido and phosphoric acid and its character in uranium extraction

作　　者：仇月双[1] 张建国[1] 封宇[1] 赵潮娅[1] 

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《铀矿冶》2013年第1期27-30,共4页Uranium Mining and Metallurgy

摘　　要：苯乙烯-二乙烯苯氯球与乙二胺、亚磷酸、甲醛反应合成了一种带有氨基膦酸螯合基团的大孔树脂(D814),此树脂适用范围宽,能够从pH为1.33～9.05的高氯根浸出液中有效吸附铀,铀吸附率大于94%。树脂耐氯性能好,当原液中ρ(Cl-)达到60g/L时,对树脂铀的吸附性能仍无明显影响。动态吸附表明,树脂吸附饱和体积与穿透树脂体积之比为1.82,每g干树脂铀吸附饱和容量为40.5mg。选用NaCl+NaHCO3混合淋洗剂,铀的淋洗率达到96.7%。对D814树脂的铀吸附机制进行了初步分析。A chelate resin（D814） with amido and phosphoric acid functional group was synthetized by means of the reactions of stytene-divinyl benzene chloromethylated sphere with ethylenedianmine and orth-phosphorous acid and formaldehyde. This resin can be used to adsorb uranium from leaching solution with high chloride ion in the rang of pH 1.33-9.05 ,and the adsorption rate of uranium was above 95%. D814 resin had a good ability resistant to high chloride ion. The loading capacity for uranium was not apparently effected when chlorid ion concentration in solution was 60 g/L. The results of the adsorption experiment show that when the ratio of saturation volume to breakthrough volume was 1.82, the uranium saturation capacity of D814 was 40.5 mg/g dry resin. NaCI＋NaHCO3 was used for eluting agent,and the eluting rate of uranium was 96.7%. Adsorption uranium mechanism by D814 was also discussed.

关 键 词：氨基膦酸大孔螯合树脂 合成 铀 吸附 

分 类 号：TL212.31[核科学技术—核燃料循环与材料]