中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Extraction of phosphorus, arsenic and/or silica from sodium tungstate or molybdate solutions with primary amine and tributyl phosphate as solvents .2. Mechanism of extraction of phosphorus, arsenic and silica from tungstate and molybdate solutions

文献类型:期刊论文

作者Zhao, Y. C. ; Chen, J. Y.
刊名Hydrometallurgy
出版日期1996
期号3页码:325-335
关键词multicomponent polyanions system
其他题名Hydrometallurgy
中文摘要The mechanism of the removal of phosphorus, arsenic and silica from tungstate or molybdate solutions by synergistic extraction with primary amine and tributyl phosphate (TBP) was investigated. Phosphorus, arsenic and silica were considered to be extracted into the organic phase as heterotungstic or heteromolybdic acids. The composition of the extracted species is strongly dependent on the concentration of tungsten and molybdenum and equilibrium pH values of the aqueous phase, An extraction mechanism based on the formation of hydrogen bonding between the primary amine, TBP and heteropoly acids is proposed. The loaded organic phase was characterized by UV and IR spectra and by molar conductance, It is proposed from the experimental results that the proton transfer from the heteropoly acids to the primary amine in the extracted species occurs intramolecularly, resulting in the formation of ion-associated species, because the primary amine is a weak base and heteropoly acids are strong acids. The mechanism of proton transfer is also proposed.
收录类别SCI
原文出处://WOS:A1996VK00500003
语种英语
公开日期2013-11-15
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/5934]  
专题过程工程研究所_研究所(批量导入)
推荐引用方式
GB/T 7714
Zhao, Y. C.,Chen, J. Y.. Extraction of phosphorus, arsenic and/or silica from sodium tungstate or molybdate solutions with primary amine and tributyl phosphate as solvents .2. Mechanism of extraction of phosphorus, arsenic and silica from tungstate and molybdate solutions[J]. Hydrometallurgy,1996(3):325-335.
APA Zhao, Y. C.,&Chen, J. Y..(1996).Extraction of phosphorus, arsenic and/or silica from sodium tungstate or molybdate solutions with primary amine and tributyl phosphate as solvents .2. Mechanism of extraction of phosphorus, arsenic and silica from tungstate and molybdate solutions.Hydrometallurgy(3),325-335.
MLA Zhao, Y. C.,et al."Extraction of phosphorus, arsenic and/or silica from sodium tungstate or molybdate solutions with primary amine and tributyl phosphate as solvents .2. Mechanism of extraction of phosphorus, arsenic and silica from tungstate and molybdate solutions".Hydrometallurgy .3(1996):325-335.

入库方式: OAI收割

来源:过程工程研究所

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