P_(538)(单烷基磷酸)从含少量稀土的废水中回收稀土  

Recovery of Rare Earth from Waste Water Using Single Alkyl Phosphate

作　　者：刘铃声[1] 武国琴[1] 许延辉[1] 季清德[1] 

机构地区：[1]包头稀土研究院,内蒙古包头014010

出　　处：《稀土》2001年第1期17-19,共3页Chinese Rare Earths

摘　　要：选用 P5 38为萃取剂 ,通过加入不同改良剂进行单级萃取试验 ,确定了最佳改良剂 ,并研究了 P5 38浓度、水相酸度、稀土浓度对 P5 38萃取稀土能力的影响。通过条件试验 ,找出了最佳工艺条件。采用某厂 H2 SO4体系的酸度为 0 .0 5～ 0 .5 mol/ L、含 REO0 .4～ 1.6 g/ L 的稀土废水做原料 ,经五级萃取 ,稀土回收率大于 96 %P 538 extracting agent was used,a good reagent was found out by some single stage extraction experiments of different reagent improver,the influence of acidity and rare earth and P 538 concentration was studied.A good technology of recovering rare earth was found out.The waste water of acittle rare earth of H 2SO 4 acidity from 0 05 to 0.5mol/L and rare earth concentration from 0.4 to 1.6g/L was used,five stages extraction experiment was done,extraction yield is above 96%.

关 键 词：单烷基磷酸 溶剂萃取 稀土回收 稀土废水 

分 类 号：X703.1[环境科学与工程—环境工程]