钛水解沉淀物的溶解及钛中毒树脂的再生  

DISSOLUTION OF HYDROLYZED TITANIUM PRECIPITATE AND REGENERATION OF RESIN POISONED BY TITANIUM

作　　者：杨润民 何其智[1] 于学仁 沈德恒[1] 谢莲英 

机构地区：[1]中国原子能科学研究院

出　　处：《原子能科学技术》1990年第5期82-85,共4页Atomic Energy Science and Technology

摘　　要：一、前言离子交换法分离铀同位素中,用Ti^(3+)作为UO_2^(2+)的还原剂。钛在该条件下水解成一白色二氧化钛沉淀物,甚至把离子交换树脂粘结成块,使树脂中毒。而二氧化钛对铀又是良好的吸附剂,它干扰谱带的形成和分离效果。通过反复试验,找出了一种溶解二氧化钛沉淀物,并再生离子交换树脂的方法。The insoluble titanium dioxide which is produced from hydrolysis of Ti^(4+) canbe dissolved rapidly in hot solution containing 0.25 mol/1 NaOH and a definitequantity of H_O_2. A ion exchange resin poisoned by the titanium dioxide precipi-tate can be regenerated with 2 mol/1 HCl and above mentioned solution. Theperformance of resin regenerated did not change.

关 键 词：TIO2 离子 交换 树脂 

分 类 号：TL284[核科学技术—核燃料循环与材料]