The experiments of metal Cd extraction were carried out three times at oil phase/aqueous phase(O/A)=1 and pH 2.2 by using 1.3 mol/L di(2-ethylhexyl)phosphoric acid(DEHPA)as the agent,with an extraction rate of 99.5%.Experiments on metal Co extraction were done three times at O/A=0.5 and pH 4.7 by using 0.4 mol/L Cyanex 272 as the agent,with an extraction rate of 99.2%.By using equilibrium data and massive calculations to analyze and predict the interaction among the extraction systems,this paper came out with the polynomials of the empirical model as well as their parameter values for the equilibrium concentration of the above two extraction loops.
参考文献
| [1] | 杨辉,柴天佑.多元稀土萃取平衡分配模型研究[J].稀土,2003(06):20-24. |
| [2] | XIE Keng,WEN Jiankang,HUA Yixin,RUAN Renman.Selective separation of Cu (II), Zn (II), and Cd (II) by solvent extraction[J].稀有金属（英文版）,2008(03):228-232. |
| [3] | Sridhar V;Verma J.K;Sanjukta A.K .Selective separation of copper and nickel by solvent extraction using LIX 984N[J].Hydrometallurgy,2009,99(1-2):124. |
| [4] | B. Ramachandra Reddy;S. Venkateswara Rao;Kyung Ho Park .Solvent extraction separation and recovery of cobalt and nickel from sulphate medium using mixtures of TOPS 99 and TIBPS extractants[J].Minerals Engineering,2009(5):500-505. |
| [5] | Robinson C.G.Optimization of the design of a counter-current liquid-liquid extraction plant using LIX64N[A].London,1971:1416-1428. |
| [6] | Wang Z.H .Theoretical design of solvent extraction separation of multi-component rare earth[J].Chinese Rare Earths,1995,16(06):10. |
| [7] | Forrest C;Hughes M.A .The separation of zinc from copper by di-2-ethylhexyl phosphoric acid:an equilibrium study[J].Hydrometallurgy,1978,3(04):327. |
| [8] | Bari F;Begum N;Jamaludin S.B;Hussin K .Extraction and separation of Cu(Ⅱ),Ni(Ⅱ)and Zn(Ⅱ)by sol-gel silica immobilized with Cyanex 272[J].Hydrometallurgy,2009,96(1-2):140. |
| [9] | P.K.Parhi;S.Panigrahi;K.Sarangi .Separation of cobalt and nickel from ammoniacal sulphate solution using Cyanex 272[J].Separation and Purification Technology,2008(3):310-317. |
| [10] | Parhi P.K;SarangiK .Separation of wpper,zinc,cobalt and nickel ions by supported liquid membrane technique using LIX 84I,TOPS-99 and Cyanex 272[J].Separation and Purification Technology,2008,59(02):169. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%