水对皂化P507萃取稀土的影响  

Effect of Water on Extraction of Rare Earths by Saponified P507

作　　者：曾阳庆 冉俊铭 利天军 黎翻 刘葵 覃燕妮 ZENG Yangqing;RAN Junming;LI Tianjun;LI Fan;LIU Kui;QIN Yanni(Chinalco Guangxi Non-ferrous Jinyuan Rare Earth Co.,Ltd., Hezhou 542603,China;School of Chemistry and Pharmaceutical Science,Guangxi Normal University, Guilin 541004,China)

机构地区：[1]中铝广西有色金源稀土有限公司,广西贺州542603 [2]广西师范大学化学与药学学院,广西桂林541004

出　　处：《湿法冶金》2019年第3期191-194,207,共5页Hydrometallurgy of China

基　　金：广西自然科学基金资助项目(2017GXNSFDA198015);中铝广西有色金源稀土有限公司项目(jyxtkj-20180208)

摘　　要：研究了P507和皂化P507对水的萃取行为,并针对氯化镧的萃取,研究了皂化P507萃取稀土过程中水在有机相中的分布。结果表明:盐酸的存在会抑制水进入P507中,NH+4的存在会促进水进入P507中;氨皂化后的P507更易萃取水;萃取时提高相比(VO∶VA)有利于缩短皂化P507萃取稀土的分相时间,避免乳化现象发生。The extraction behaviors for water of P507 and saponified-P507 were investigated.The distribution of water in the organic phase during extraction of rare earth such as lanthanum chloride by saponified -P507 was also examined.The results show that the presence of hydrochloric acid in water phase inhibits water entering into P507,and the presence of NH + 4 promotes water entering into P507.Saponified P507 is easier to extract water than P507.Increasing of V O∶ V A is in favour of shortening the time of phase separation and preventing the emulsification.

关 键 词：P507 氨皂化 萃取 水 乳化 

分 类 号：TF845[冶金工程—有色金属冶金] TF804.2