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有色金属(冶炼部分):2015,(11):21-25
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P204浸渍树脂对钒的吸附性能研究
梁粱,包申旭,张一敏,唐咏平
(武汉理工大学,武汉理工大学,武汉理工大学,武汉理工大学)
Adsorption Properties of Vanadium on P204 Impregnated Resins
Liang Liang,Bao Shenxu,Zhang Yimin and Tang Yongping
(Wuhan University of Technology,,,)
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投稿时间:2015-04-13     修订日期:2015-04-21     录用日期:2015-04-22     网络发布日期:2015-10-19
中文摘要: 以L493多孔吸附树脂为载体,P204为萃取剂制备了P204浸渍树脂,对制备的浸渍树脂进行表征,确定了最佳萃取剂浓度为50%。采用静态吸附法考察了在硫酸体系中溶液pH、钒离子浓度、温度以及浸渍时间等因素对P204浸渍树脂吸附钒性能的影响。结果表明,浸渍树脂吸附V(Ⅳ)、V(Ⅴ)的最佳pH均为2.0;吸附V(Ⅳ)、V(Ⅴ)的等温吸附曲线均符合Langmuir等温吸附模型;V(Ⅳ)、V(Ⅴ)吸附平衡时间分别为18 h和14 h,准二级动力学方程可以较好地描述浸渍树脂吸附V(Ⅳ)、V(Ⅴ)的过程。
中文关键词: P204  钒  吸附  浸渍树脂  动力学
Abstract:Solvent impregnated resins (SIRs) were prepared with L493 macroporous adsorption resins as carrier and P204 as extractant. SIRs were characterized and the optimum concentration of extractant is 50%. The effects of pH value of solution, vanadium concentration, temperature, and contact time on absorption of vanadium in sulfuric acid solutions with SIRs were investigated through static adsorption method. The results show that the optimum pH value for both adsorption of vanadium (Ⅳ) and vanadium (Ⅴ) is 2.0. The adsorption isotherms of vanadium (Ⅳ) and vanadium (Ⅴ) on SIRs are fit to Langmuir isotherm model. Adsorption equilibrium time for vanadium (Ⅳ) and vanadium (Ⅴ) is 18 h and 14 h respectively. Adsorption processes of vanadium (Ⅳ) and vanadium (Ⅴ) can be well described by pseudo-second order model.
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基金项目:国家自然科学基金资助项目(51404177);湖北省自然科学基金项目(2014CFB857)
引用文本:
梁粱,包申旭,张一敏,唐咏平.P204浸渍树脂对钒的吸附性能研究[J].有色金属(冶炼部分),2015(11):21-25.
Liang Liang,Bao Shenxu,Zhang Yimin,Tang Yongping.Adsorption Properties of Vanadium on P204 Impregnated Resins[J].Nonferrous Metals (Extractive Metallurgy),2015(11):21-25.

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