离子液浸渍树脂对稀土吸附性能的研究
|
摘要
研究了一种新型中性磷萃取剂辛基-二苯基磷酸酯(ODP)在1-辛基-3-甲基咪唑双(三氟甲烷磺酰)亚胺盐([OMIm][NTf_2])离子液体和甲苯溶液中对稀土的萃取能力;并将该中性磷萃取剂通过溶液浸渍的方式固定在XAD-7树脂中并用于水相中镥离子的吸附分离。研究表明,在[OMIm][NTf_2]离子液体和甲苯环境中ODP对稀土表现出了不同的萃取能力;离子液浸渍树脂达到吸附平衡的时间很短,仅需十分钟,吸附过程与动力学二级反应模型相吻合;水相溶液的pH值对吸附量有显著影响,低酸度条件有利于吸附过程。
A novel extractant of octyl diphenyl phosphate(ODP) has been researched, and its extraction ability for rare earth with [OMIm][NTf_2] ionic liquid and toluene has been investigated. The extractant was used for adsorbing Lu~(3+) while impregnated on XAD-7 resin. The result show that the rare earth extraction ability of ODP was different in [OMIm][NTf_2] ionic liquid and toluene. The adsorption equilibrium time of ionic liquid impregnated resin for Lu~(3+) was just 10 min, pseudo-second-order kinetic model provided the best fit. Adsorption capacity of impregnated resin for Lu~(3+) was affected by pH and the low acidity is benefit for adsorption.
A novel extractant of octyl diphenyl phosphate(ODP) has been researched, and its extraction ability for rare earth with [OMIm][NTf_2] ionic liquid and toluene has been investigated. The extractant was used for adsorbing Lu~(3+) while impregnated on XAD-7 resin. The result show that the rare earth extraction ability of ODP was different in [OMIm][NTf_2] ionic liquid and toluene. The adsorption equilibrium time of ionic liquid impregnated resin for Lu~(3+) was just 10 min, pseudo-second-order kinetic model provided the best fit. Adsorption capacity of impregnated resin for Lu~(3+) was affected by pH and the low acidity is benefit for adsorption.
引文
[1] 徐光宪, 稀土(第二版)[M]. 北京:冶金工业出版社,1995.1.Xu G X. Rare Earth [M]. Beijing: The Press of Metallurgical Industry, 1995.1.
[2] 杨斌清, 张贤平. 世界稀土生产与消费结构分析[J].稀土,2014, 35(1): 111-118.Yang B Q, Zhang X P. Analysis of global rare earth production and consumption structure [J]. Chinese Rare Earths, 2014, 35(1): 111-118.
[3] 刘荣辉, 黄小卫, 何华强, 庄卫东, 胡运生, 刘元红. 稀土发光材料技术和市场现状及展望[J]. 中国稀土学报, 2012, 30(3): 265-272.Liu R H, Huang X W, He H Q, Zhuang W D, Hu Y S, Liu Y H. Prospect and advance of technique and market of rare earth luminescent materials [J]. Journal of The Chinese Society of Rare Earths, 2012, 30(3): 265-272.
[4] 刘国征, 夏宁, 刘小鱼, 赵明静, 赵瑞金. 稀土磁性功能薄膜材料的研究现状[J]. 稀土, 2010, 31(1): 86-91.Liu G Z, Xia N, Liu X Y, Zhao M J, Zhao R J. Present research of rare earth functional magnetic thin film materials [J]. Chinese Rare Earths, 2010, 31(1): 86-91.
[5] 王晓晨, 郈菊秀, 孟建文, 王传栋. 稀土催化剂应用于聚乳酸合成的研究进展[J]. 稀土, 2016, 37(4): 136-143.Wang X C, Hou J X, Meng J W, Wang C D. Research of rare earth catalyst used for synthesis of polylactic acid [J]. Chinese Rare Earths, 2016, 37(4): 136-143.
[6] 张杰, 王建蕊, 黄苑龄. 氧化镧对锰渣陶瓷的某些物理性能影响特征[J]. 稀土, 2013, 34(6): 39-44.Zhang J, Wang J R, Huang Y L. Effect of lanthanum oxide on physical properties of manganese slag ceramic [J]. Chinese Rare Earths, 2013, 34(6): 39-44.
[7] Sun X Q, Luo H, Dai S. Ionic liquids-based extraction: A promising strategy for the advanced nuclear fuel cycle [J]. Chem Rev, 2012, 112 (4): 2100-2128.
[8] 杨桂林, 彭福郑, 刘志芬, 张顺利, 刘营, 陈赛龙, 李明来. 稀土萃取分离过程三相乳化物的研究—无机杂质富集沉淀导致的乳化[J]. 稀有金属,2007, 31(4): 547-552.Yang G L, Peng F Z, Liu Z F, Zhang S L, Liu Y, Chen S L, Li M L. Emulsion during rare earth extraction-separation process-emulsion caused by accumulation of inorganic impurities [J]. Chinese Journal of Rare Metals, 2007, 31(4): 547-552.
[9] Peng C, Fan Y, Liao Q X, Zhao Z G, Zhang Y, Zhao P P, Guo W H, Bai R X. Recycling and separation of rare earth resources lutetium from LYSO scraps using the diglycol amic acid functional XAD-type resin[J]. Waste Manage, 2017, 62(4): 222-228.
[10] Zhao Z Y, Sun X Q, Dong Y M, Wang Y L. Synergistic effect of acid-base coupling bifunctional ionic liquids in impregnated resin for rare earth adsorption[J]. ACS Sustain Chem Eng, 2016, 4 (2): 616-624.
[11] Shibata J, Matsumoto S. Separation of Dy, Y, Tm and Yb from heavier rare earth residue with solvent impregnated resin[J]. Mater Sci Forum, 1999, 315-317: 282-289.
[12] Draa M T, Belaid T, Benamor M. Extraction of Pb (II) by XAD-7 impregnated resins with organophosphorus extractants (DEHPA, IONQUEST 801, CYANEX 272) [J]. Sep Purif Technol, 2004, 40 (1): 77-86.
[13] Dong Y M, Li S, Su X, Wang Y L, Shen Y L, Sun X Q. Separation of thorium from rare earths with high-performance diphenyl phosphate extractant[J]. Hydrometallurgy, 2017, 171: 387-393.
[14] Wu D B., Sun Y H, Wang Q G, Adsorption of lanthanum (III) from aqueous solution using 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester-grafted magnetic silica nanocomposites[J]. J Hazard Mater, 2013, 260: 409-19.
[15] 杨华. 稀土萃取分离中的配位化合物[J]. 稀土, 2003, 24(6): 75-80.Yang H. Coordination complex in separating rare earth by solvent extraction [J]. Chinese Rare Earths, 2003, 24(6): 75-80.
[16] Qiu S, Li S, Dong Y M, Su X, Wang Y L, Shen Y L, Sun X Q. A high-performance impregnated resin for recovering thorium from radioactive rare earth waste residue [J]. J Mol Liq, 2017, 237: 380-386.
[17] Lagergren S, Sven B K. Zur Theorie der Sogenannten Adsorption Geloster Stoffe[M]. Vetenskapsakad Handlingar,1898, 24: 1-39.
[18] Ho Y S, McKay G. Pseudo-second order model for sorption processes[J]. Process Biochem, 1999, 34 (5): 451-465.
[19] Torrado A, Valiente M. Kinetics characterization of ions release under dynamic and batch conditions. Strong acid and strong base type ion exchange resins[J]. Solvent Extr Ion Exch, 2008, 26 (3): 240-260.
[2] 杨斌清, 张贤平. 世界稀土生产与消费结构分析[J].稀土,2014, 35(1): 111-118.Yang B Q, Zhang X P. Analysis of global rare earth production and consumption structure [J]. Chinese Rare Earths, 2014, 35(1): 111-118.
[3] 刘荣辉, 黄小卫, 何华强, 庄卫东, 胡运生, 刘元红. 稀土发光材料技术和市场现状及展望[J]. 中国稀土学报, 2012, 30(3): 265-272.Liu R H, Huang X W, He H Q, Zhuang W D, Hu Y S, Liu Y H. Prospect and advance of technique and market of rare earth luminescent materials [J]. Journal of The Chinese Society of Rare Earths, 2012, 30(3): 265-272.
[4] 刘国征, 夏宁, 刘小鱼, 赵明静, 赵瑞金. 稀土磁性功能薄膜材料的研究现状[J]. 稀土, 2010, 31(1): 86-91.Liu G Z, Xia N, Liu X Y, Zhao M J, Zhao R J. Present research of rare earth functional magnetic thin film materials [J]. Chinese Rare Earths, 2010, 31(1): 86-91.
[5] 王晓晨, 郈菊秀, 孟建文, 王传栋. 稀土催化剂应用于聚乳酸合成的研究进展[J]. 稀土, 2016, 37(4): 136-143.Wang X C, Hou J X, Meng J W, Wang C D. Research of rare earth catalyst used for synthesis of polylactic acid [J]. Chinese Rare Earths, 2016, 37(4): 136-143.
[6] 张杰, 王建蕊, 黄苑龄. 氧化镧对锰渣陶瓷的某些物理性能影响特征[J]. 稀土, 2013, 34(6): 39-44.Zhang J, Wang J R, Huang Y L. Effect of lanthanum oxide on physical properties of manganese slag ceramic [J]. Chinese Rare Earths, 2013, 34(6): 39-44.
[7] Sun X Q, Luo H, Dai S. Ionic liquids-based extraction: A promising strategy for the advanced nuclear fuel cycle [J]. Chem Rev, 2012, 112 (4): 2100-2128.
[8] 杨桂林, 彭福郑, 刘志芬, 张顺利, 刘营, 陈赛龙, 李明来. 稀土萃取分离过程三相乳化物的研究—无机杂质富集沉淀导致的乳化[J]. 稀有金属,2007, 31(4): 547-552.Yang G L, Peng F Z, Liu Z F, Zhang S L, Liu Y, Chen S L, Li M L. Emulsion during rare earth extraction-separation process-emulsion caused by accumulation of inorganic impurities [J]. Chinese Journal of Rare Metals, 2007, 31(4): 547-552.
[9] Peng C, Fan Y, Liao Q X, Zhao Z G, Zhang Y, Zhao P P, Guo W H, Bai R X. Recycling and separation of rare earth resources lutetium from LYSO scraps using the diglycol amic acid functional XAD-type resin[J]. Waste Manage, 2017, 62(4): 222-228.
[10] Zhao Z Y, Sun X Q, Dong Y M, Wang Y L. Synergistic effect of acid-base coupling bifunctional ionic liquids in impregnated resin for rare earth adsorption[J]. ACS Sustain Chem Eng, 2016, 4 (2): 616-624.
[11] Shibata J, Matsumoto S. Separation of Dy, Y, Tm and Yb from heavier rare earth residue with solvent impregnated resin[J]. Mater Sci Forum, 1999, 315-317: 282-289.
[12] Draa M T, Belaid T, Benamor M. Extraction of Pb (II) by XAD-7 impregnated resins with organophosphorus extractants (DEHPA, IONQUEST 801, CYANEX 272) [J]. Sep Purif Technol, 2004, 40 (1): 77-86.
[13] Dong Y M, Li S, Su X, Wang Y L, Shen Y L, Sun X Q. Separation of thorium from rare earths with high-performance diphenyl phosphate extractant[J]. Hydrometallurgy, 2017, 171: 387-393.
[14] Wu D B., Sun Y H, Wang Q G, Adsorption of lanthanum (III) from aqueous solution using 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester-grafted magnetic silica nanocomposites[J]. J Hazard Mater, 2013, 260: 409-19.
[15] 杨华. 稀土萃取分离中的配位化合物[J]. 稀土, 2003, 24(6): 75-80.Yang H. Coordination complex in separating rare earth by solvent extraction [J]. Chinese Rare Earths, 2003, 24(6): 75-80.
[16] Qiu S, Li S, Dong Y M, Su X, Wang Y L, Shen Y L, Sun X Q. A high-performance impregnated resin for recovering thorium from radioactive rare earth waste residue [J]. J Mol Liq, 2017, 237: 380-386.
[17] Lagergren S, Sven B K. Zur Theorie der Sogenannten Adsorption Geloster Stoffe[M]. Vetenskapsakad Handlingar,1898, 24: 1-39.
[18] Ho Y S, McKay G. Pseudo-second order model for sorption processes[J]. Process Biochem, 1999, 34 (5): 451-465.
[19] Torrado A, Valiente M. Kinetics characterization of ions release under dynamic and batch conditions. Strong acid and strong base type ion exchange resins[J]. Solvent Extr Ion Exch, 2008, 26 (3): 240-260.