| 汞在罗丹明B-NaCl-丙醇水溶液中的绿色析相萃取分离和富集 |
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| 作者单位： | ;1.信阳师范学院化学化工学院;2.河南工业大学化学化工学院 |
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| 摘 要： | 研究了罗丹明B-NaCl-丙醇体系萃取汞的新方法.探讨了罗丹明B的浓度、NaCl的浓度、丙醇的浓度和酸度等对Hg(Ⅱ)萃取的影响,确定了萃取分离Hg(Ⅱ)的最佳条件,并讨论了Hg(Ⅱ)的萃取机理.当溶液中罗丹明B、NaCl和丙醇的浓度分别为0.27g/L、160g/L和30%(V/V)时,Hg(Ⅱ)的萃取率达到98.0%以上,实现了Hg(Ⅱ)与Pb(Ⅱ)、Zn(Ⅱ)、Ir(Ⅳ)、Ni(Ⅱ)、Ag(Ⅰ)、Rh(Ⅲ)、Cu(Ⅱ)、Cr(III)、Mg(Ⅱ)、Fe(Ⅲ)、Al(Ⅲ)和Co(Ⅱ)离子定量分离.
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| 关 键 词： | 汞 罗丹明B 丙醇 NaCl 萃取分离 |
Green Enrichment and Extraction Separation of Mercury in Rhodamine B-NaCl-n-propanol-Water Solution by Phase Separation |
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| Affiliation: | ,College of Chemistry and Chemical Engineering,Xinyang Normal University,College of Chemistry and Chemical Engineering,Henan University of Technology |
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| Abstract: | A novel method for the extraction and separation of Hg(Ⅱ)in Rhodamine B-NaCl-n-propanol system was developed.The effects of concentrations of Rhodamine B,NaCl,n-propanoland acidity etc on the extraction of Hg(Ⅱ)have been investigated.The possible extraction separation mechanism of Hg(Ⅱ)was discussed.When the concentrations of Rhodamine B,NaCl and n-propanol in solution were 0.27g/L,160g/L and30 %(V/V),respectively,Hg(Ⅱ)could be quantitatively separated from Pb(Ⅱ),Zn(Ⅱ),Ir(Ⅳ),Ni(Ⅱ),Ag(Ⅰ),Rh(Ⅲ),Cu(Ⅱ),Cr(III),Mg(Ⅱ),Fe(Ⅲ),Al(Ⅲ)and Co(Ⅱ)by extraction,and values of extraction percentage of Hg(Ⅱ)were over 98.0%. |
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| Keywords: | mercury Rhodamine B n-propanol NaCl extraction separation |
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