邻二氮菲-正丙醇-硫酸铵-抗坏血酸体系萃取分离和富集Fe(Ⅱ)

基金项目:

河南省教育厅自然科学研究计划项目(2006150023)

Enrichment and Extraction Separated of Fe(Ⅱ) by 1,10-phen anthroline-1-propanol-ammonium Sulphate-as

1.
College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China
2.
College of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450052,China

摘要: 用可见分光光度法研究邻二氮菲-正丙醇-硫酸铵-抗坏血酸体系萃取分离和富集铁的行为及铁与一些金属离子分离的条件.结果表明,硫酸铵能使正丙醇的水溶液分成两相,在分相过程中,三元缔合物[Fe(phen)3]SO4能被正丙醇相完全萃取.当溶液中正丙醇、邻二氮菲和硫酸铵的浓度分别为30%(v/v)、7.0×10-4 mol/L和0.2 g/mL时,Fe(Ⅱ)的萃取率达到96.6%～98.4%,Co(Ⅱ)、Au(Ⅲ)、Ag(Ⅰ)、Ni(II)、Mg(Ⅱ)、Cr(Ⅲ)、Cu(Ⅱ)、Al(Ⅲ)、Hg(Ⅱ)、Pb(Ⅱ)和Cd(Ⅱ)基本不被萃取,实现了Fe(Ⅱ)与上述金属离子的分离.对合成水样中铁的分离和测定效果良好
- 铁 /
- 正丙醇 /
- 邻二氮菲 /
- 萃取分离 /
- 可见分光光度法
Abstract: The behavior and conditions of extraction separation and concentration of ferrum from other metal ions by 1,10-phenanthroline-1-propanol-ammonium sulphate system-ascorbic acid were studied with visible spectrophotometry.The results showed that the 1-propanol aqueous solution could be well divided into two phases with the action of ammonium sulphate.The ternary complex [Fe(phen)3]SO4could be completely extracted during this process.Fe(Ⅱ)could be quantiatively separated from Co(Ⅱ),Au(Ⅲ),Ag(Ⅰ),Ni(Ⅱ...
- ferrum /
- 1-propanol /
- 1,10-phenanthroline /
- extraction separation /
- visible spectrophotometry

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