文章摘要
张鹏,王月娇,张莹莹,王丹丹,刘毅,娄振宁.三烷基胺和磷酸三丁酯于盐酸介质中协同萃取铼(Ⅶ)研究[J].,2019,59(4):331-335
三烷基胺和磷酸三丁酯于盐酸介质中协同萃取铼(Ⅶ)研究
Research on synergistic extraction of rhenium(Ⅶ) from hydrochloric media by mixtures of tri-alkylamine and tri-n-butylphosphate
  
DOI:10.7511/dllgxb201904001
中文关键词: 协同萃取  三烷基胺  磷酸三丁酯    
英文关键词: synergistic extraction  tri-alkylamine  tri-n-butylphosphate  rhenium  molybdenum
基金项目:国家自然科学基金资助项目(21171080,21201094).
作者单位
张鹏,王月娇,张莹莹,王丹丹,刘毅,娄振宁  
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中文摘要:
      研究了三烷基胺(N235)和磷酸三丁酯(TBP)从盐酸介质中对铼的协同萃取.N235和TBP的浓度比为1∶9时混合萃取体系对Re(Ⅶ)具有较大的协萃作用,最大协萃因子为4.71,对Mo(Ⅵ)的协萃因子为2.16.在pH=1时,萃合物的组成为(R3NH+Cl-)2·HReO4·B,当酸浓度为3 mol·L-1时,萃合物的组成为(R3NH+Cl-)·HReO4·B,而N235单独萃取时萃合物的组成为R3NH+ReO-4.同时证明了混合萃取剂分离钼和铼的协萃效果和萃取能力.
英文摘要:
      The synergistic extraction of Re(Ⅶ) from hydrochloric media by mixtures of tri-alkylamine (N235) and tri-n-butylphosphate (TBP) is studied. The mixtures have higher synergistic effects on Re(Ⅶ) than that on Mo(Ⅵ), and the maximal synergistic factors of the mixture for Re(Ⅶ) and Mo(Ⅵ) are 4.71 and 2.16 at a concentration ratio of N235 to TBP of 1 to 9. Re(Ⅶ) is extracted as (R3NH+Cl-)2·HReO4·B at pH=1, whereas Re(Ⅶ) is extracted as (R3NH+Cl-)·HReO4·B by the mixtures at the acidity of 3 mol·L-1, instead of R3NH+ReO-4by N235 alone. Furthermore, the possibility of separating rhenium and molybdenum ions by the mixtures according to the synergistic effects and extraction ability are proved.
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