Abstract
Considering the benefits of resource, environment and economy, recycling secondary rare earth resources is becoming an extremely significant resource regeneration way. In this paper, we reported a novel synergistic extraction system combining ionic liquid [OMIm] [PF6] and extractant Cyanex272 to separate and purify the REE from the leachate of waste CRT phosphor powder. Some extraction parameters were studied including extraction acidity, the ratio of organic phase to aqueous phase, the ratio of Cyanex272 and [OMIm] [PF6], extraction time and extraction temperature. The optimal parameters of the extraction process was obtained as extraction acidity 0.2 mol/L, the ratio of organic phase to aqueous phase 1:5, the ratio of Cyanex272 and [OMIm]PF6 XC = 0.4, extraction time 10 min and extraction temperature 25 ℃. Under these conditions, REE is successfully and efficiently extracted and separated with zinc and aluminum, which revealed a potential application for REE separation and purification from electronic waste.
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References
K. Binnemans, P.T. Jones, B. Blanpain, T. Van Gerven, Y. Yang, A. Walton, M. Buchert, Recycling of rare earths: a critical review. J. Clean. Prod. 51, 1–22 (2013)
S. Massari, M. Ruberti, Rare earth elements as critical raw materials: focus on international markets and future strategies. Resour.Policy 38, 36–43 (2013)
X.J. Yang, A. Lin, X. Li, Y. Wu, W. Zhou, Z. Chen, China’s ion-adsorption rare earth resources, mining consequences and preservation. Environ. Dev. 8, 131–136 (2013)
Q. Xu, G. Li, W. He, J. Huang, X. Shi, Cathode ray tube (CRT) recycling: current capabilities in China and research progress. Waste Manage. 32, 1566–1574 (2012)
I.C. Nnorom, O. Osibanjo, M.O.C. Ogwuegbu, Global disposal strategies for waste cathode ray tubes. Resour. Conserv. Recycl. 55, 275–290 (2011)
Q. Song, J. Li, A systematic review of the human body burden of e-waste exposure in China. Environ. Int. 68, 82–93 (2014)
S. Sthiannopkao, M.H. Wong, Handling e-waste in developed and developing countries: initiatives, practices, and consequences. Sci. Total Environ. 463–464, 1147–1153 (2013)
X.T. Yu-Gong, Y. Wu, L.L. Zhe-Tan, Recent development of recycling lead from scrap CRTs: A technological review. Waste Manage. 57, 176–186 (2016)
F. Ardente, F. Mathieux, M. Recchioni, Recycling of electronic displays: analysis of pre-processing and potential ecodesign improvements. Resour. Conserv. Recycl. 92, 158–171 (2014)
L.V. Resende, C.A. Morais, Process development for the recovery of europium and yttrium from computer monitor screens. Miner. Eng. 70, 217–221 (2015)
V. Innocenzi, I. De Michelis, F. Ferella, F. Beolchini, B. Kopacek, F. Vegliò, Recovery of yttrium from fluorescent powder of cathode ray tube, CRT: Zn removal by sulphide precipitation. Waste Manage. 33, 2364–2371 (2013)
V. Innocenzi, I. De Michelis, F. Ferella, F. Vegliò, Recovery of yttrium from cathode ray tubes and lamps’ fluorescent powders: experimental results and economic simulation. Waste Manage. 33, 2390–2396 (2013)
A. Rout, S. Wellens, K. Binnemans, Separation of rare earths and nickel by solvent extraction with two mutually immiscible ionic liquids. RSC Adv. 4, 5753–5758 (2014)
A. Rout, K. Binnemans, Separation of rare earths from transition metals by liquid-liquid extraction from a molten salt hydrate to an ionic liquid phase. Dalton Trans. 43, 3186–3195 (2014)
R. Martínez-Palou, R. Luque, Applications of ionic liquids in the removal of contaminants from refinery feedstocks: an industrial perspective. Energ. Environ. Sci. 7, 2414 (2014)
X. Sun, Y. Dong, Y. Wang, Y. Chai, The synergistic extraction of heavy rare earth elements using EHEHP-type and BTMPP-type functional ionic liquids. RSC Adv. 5, 49500–49507 (2015)
Y. Shen, W. Li, J. Wu, S. Li, H. Luo, Solvent extraction of lanthanides and yttrium from aqueous solution with methylimidazole in an ionic liquid. Dalton Trans. 43, 10023–10032 (2014)
A. Rout, K. Binnemans, Influence of the ionic liquid cation on the solvent extraction of trivalent rare-earth ions by mixtures of Cyanex 923 and ionic liquids. Dalton Trans. 44, 1379–1387 (2015)
M. Zhu, J. Zhao, Y. Li, N. Mehio, Y. Qi, An ionic liquid-based synergistic extraction strategy for rare earths. Green Chem. 17, 2981–2993 (2015)
X. Tian, X. Yin, Y. Gong, Y. Wu, Z. Tan, P. Xu, Characterization, recovery potentiality, and evaluation on recycling major metals from waste cathode-ray tube phosphor powder by using sulphuric acid leaching. J. Clean. Prod. 135, 1210–1217 (2016)
Acknowledgements
This work was financially supported by Beijing Nova Program (Z1511000003150141), National Natural Science Foundation of China (2174068), Academician Workstation in Yunnan Province and Key Discipline for Resource, Environment & Circular Economy of Beijing (Q5104001201503).
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Tian, X., Wu, Y., Yin, X., Gong, Y., Zhang, K., Fu, Y. (2018). Eco-friendly Selective Synergistic Extraction Rare-Earths from Waste CRT Phosphor Powder Sulfuric Acid Leachate with Imidazolium-Based Ionic Liquid [OMIm] [PF6] and Extractant Cyanex272. In: Han, Y. (eds) Advances in Energy and Environmental Materials. CMC 2017. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-13-0158-2_52
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DOI: https://doi.org/10.1007/978-981-13-0158-2_52
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