用稀土皂化有机相技术在轻稀土分离工艺中的新应用  

The New Application of RE’s Saponification Technique in theseparation of LRE

作　　者：臧立新 王琦[1] 

机构地区：[1]湖南益阳稀土材料总厂,包钢稀土研究院

出　　处：《稀土》1995年第3期28-30,52,共4页Chinese Rare Earths

摘　　要：采用Ｐ＿（２０４）萃取剂，氮化轻稀士为原料，应用稀土皂化有机相技术，连续、稳定地生产出９９～９９．５％的Ｎｄ＿２Ｏ＿３、镧铈谱富集物及部分９９～９９．５％Ｌａ＿２Ｏ＿３。且富集物ＬａＣｅＰｒ溶液稀土浓度提高了２～３倍，使下步工序的Ｃｅ－ｐｒ、Ｌａ－Ｃｅ分离段，在相同设备、萃取参数条件下，较原设计工艺提高处理量近５０％。Adopting P_(204) as extractant,light rare earth (LRE)chloride as raw materials,and RE’s saponification technique,we can continuously and stably produce Nd_2O_3 with the purity of 99～99.5%,La-Ce-pr concentrate and partial La_2O_3 with the purity of 99～99.5%, Compared with the forrner technique, the RE concentration in the concentrate solution will be increased to two to three times,and this will make the processing capacity increase of fifty percent for the sep-aration of Ce and Pr,La and Ce in the same equiprnent and extraction parameter.

关 键 词：稀土皂化 P204萃取剂 镨 钕 

分 类 号：O614.33[理学—无机化学] O658.2[理学—化学]