This study investigated imidazolium ionic liquids’ capability under ultrasonic irradiation conditions for dysprosium extraction from the aqueous nitrate solution. The main objective was to evaluate the feasibility of ultrasoundassisted extraction techniques compared to conventional solvent extraction. The extraction process was investigated as a function of the ionic liquids and organic extractant, organic/aqueous phase volume ratio, the acidity of the aqueous phase, contact time, ion concentration, temperature, and stripping condition. The outcomes demonstrated that the combination of C6MIM.PF6 and TOPO extractant is more extractable than the mixture of C6MIM.NTf2 and TOPO. The effects of ultrasonic irradiation on the Dy(III) ions show that ion transfer occurs with high extraction efficiency. The variation of logD versus temperature demonstrated that temperature had little impact on the extraction procedure. The recovery of dysprosium ions from the organic phase using 0.5M nitric acid is achieved in stripping studies. The results showed that the extraction and recovery under ultrasonic irradiation and with the presence of ionic liquids proposed a simple and environmentally friendly approach for the purification and separation of rare-earth ions from the permanent magnet wastewater.

Imidazolium Ionic Liquid Ultrasonic Irradiation Rare Earth Ions Permanent Magnet Wastewater

Atwood DA, The rare earth elements: Fundamentals and applications, Wiley, New York (2012).
Menushenkov VP, Savchenko AG, J. Magn. Magn. Mater., 272-276, E1891 (2004)
Hirosawa S, JOM, 67, 1304 (2015)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Sep. Purif. Rev., 50, 417 (2021)
Zhang J, Zhao B, Schreiner B, Separation hydrometallurgy of rare earth elements, Springer, New York (2018).
Jha MK, Kumari A, Panda R, Kumar JR, Yoo K, Lee JY, Hydrometallurgy, 165, 2 (2016)
Pramanik BK, Nghiem LD, Hai FI, Water Res., 168, 115149 (2020)
Nemerow NL, et al., Strategies of industrial and hazardous waste management, Wiley, New York (1998).
Bubalo MC, Vidovic S, Redovnikovic IR, Jokic S, J. Chem. Technol. Biotechnol., 90(9), 1631 (2015)
Pospiech B, Kujawski W, Rev. Chem. Eng., 31(2), 179 (2015)
Rynkowska E, Fatyeyeva K, Kujawski W, Rev. Chem. Eng., 34, 341 (2017)
Salar-Garcia MJ, Ortiz-Martinez VM, Hernandez-Fernandez FJ, de los Rios AP, Quesada-Medina J, J. Hazard. Mater., 321, 484 (2017)
Ayati A, Ranjbari S, Tanhaei B, Sillanpaa M, J. Mol. Liq., 375, 71 (2019)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Ghaemi A, Hemmati A, Int. J. Env. Anal. Chem., (2020).
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Int. J. Env. Anal. Chem., (2020).
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Int. J. Env. Sci. Technol., 17, 3983 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Hemmati A, Ghaemi A, Chem. Pap., 74, 4193 (2020)
Dong Y, Sun X, Wang Y, Huang C, Zhao Z, ACS Sustainable Chem. Eng., 4, 1573 (2016)
Turgis R, Arrachart G, Dubois V, Dourdain S, Virieux D, Michel S, Legeai S, Lejeune M, Draye M, Pellet-Rostainga S, Dalton Trans., 45, 1259 (2016)
Zhou H, Wang Y, Guo X, Dong Y, Su X, Sun X, J. Mol. Liq., 254, 414 (2018)
Chen YH, Wang HY, Pei YC, Wang JJ, Sep. Purif. Technol., 178, 261 (2017)
Rianoa S, Binnemans K, Green Chem., 17, 2931 (2015)
Shen L, Chen J, Chen L, Liu C, Zhang D, Zhang Y, Su W, Deng Y, Hydrometallurgy, 161, 152 (2016)
Thakur NV, Solvent Ext. Ion Exc., 18, 853 (2000)
Padhan E, Sarangi K, Miner. Process Extrac. Met., 128, 168 (2019)
El-Hefny NE, Gasser MS, Emam S, Mahmoud WH, Aly HF, J. Rare Earths, 36, 1342 (2018)
Sun PP, Kim DH, Cho SY, Miner. Eng., 118, 9 (2018)
Torkaman R, Asadollahzadeh M, Torab-Mostaedi M, Chem. Eng. Process., 111, 7 (2017)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Geosystem Eng., 23, 101 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Korean J. Chem. Eng., 37(2), 322 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Sep. Sci. Technol., 56, 1071 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, ACS Omega, 5, 18700 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Hemmati A, Ghaemi A, Environ. Technol. Inno., 19, 100979 (2020)
Asadollahzadeh M, Torkaman R, Torab-Mostaedi M, Moazami F, Sep. Seci. Technol., 56, 1241 (2019)
Torkaman R, Safdari J, Torab-Mostaedi M, Moosavian MA, Asadollahzadeh M, J. Taiwan Inst. Chem. Eng., 48, 18 (2015)
Ince NH, Tezcanli G, Belen RK, Apikyan IG, Appl. Catal. B: Environ., 29(3), 167 (2001)
Saien J, Daneshamoz S, Ultrason. Sonochem., 40, 11 (2018)
Daryabor M, Ahmadi A, Zilouei H, Ultrason. Sonochem., 34, 931 (2017)
Stevanato N, Silva C, Ind. Crop. Prod., 132, 283 (2019)
Soltani R, Shahvar A, Dinari M, Saraji M, Ultrason. Sonochem., 40, 395 (2018)
Amiri-Yazani T, Zare-Dorabei R, Rabbani M, Mollahossein A, Microchem. J., 146, 498 (2019)
Behbahani M, Zarezade V, Veisi A, Omidi F, Bagheri S, Int. J. Env. Sci. Technol., 16, 6431 (2019)
Sajid M, Wozniak MK, Plotka-Wasylka J, Microchem. J., 144, 117 (2019)
Zuo Y, Liu Y, Chen J, Li DQ, Ind. Eng. Chem. Res., 47(7), 2349 (2008)
Wang K, Adidharm H, Radosz M, Wan P, Xu X, Russell CK, Tian H, Fan M, Yu J, RSC Adv., 19, 4460 (2017)
El-Nadi YA, Hydrometallurgy, 119-120, 23 (2012)
Nakashima K, Kubota F, Maruyama T, Goto M, Ind. Eng. Chem. Res., 44(12), 4368 (2005)
Sun XQ, Wu DB, Chen J, Li DQ, J. Chem. Technol. Biotechnol., 82(3), 267 (2007)
Freire MG, Neves CMSS, Marrucho IM, Coutinho JOAP, Fernandes AM, J. Phys. Chem. A, 114, 3744 (2010)
Ghorbani M, Simone MI, ACS Omega, 5, 12637 (2020)
Radziuk D, Mohwald H, Phys. Chem. Chem. Phys., 18, 21 (2016)