从含钌废料中分离提纯钌工艺研究

摘要

The dissolution-oxalic acid reduction is used to separate ruthenium from a rutheniumcontaining waste.The effects of the solid-to-liquid ratio, dissolution time, mass ratio of metal ruthenium and oxalic acid in solution, reaction temperature and reaction time on recovery of ruthenium were examined.The results show that under the conditions of solid-to-liquid ratio of 1:6:30, dissolution time of 5h, mass ratio of ruthenium and oxalic acid of 1:5, temperature of 70 ℃, and recovery of ruthenium is 97.7％.%研究采用化学溶解—草酸还原法从含钌废料中分离提纯钌, 考察固液质量体积比 (m (含钌物料):V (NaOH溶液):V (NaClO溶液)) 、溶解温度、溶解时间、草酸还原过程中金属钌与草酸质量比、反应温度、反应时间对钌回收率的影响.结果表明:在固液质量体积比1:6:30、溶解时间5h、溶解温度80℃溶解条件下, 及钌与草酸质量比1:5、反应温度70℃、反应时间50min草酸还原条件下, 钌回收率为97.7％, 回收效果较好.