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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2986
Title: Recovery of zinc and cadmium from spent batteries using Cyphos IL 102 via solvent extraction route and synthesis of Zn and Cd oxide nanoparticles
Authors: Singh R.
Mahandra H.
Gupta B.
Published in: Waste Management
Abstract: The overall aim of this study is to separate and recover zinc and cadmium from spent batteries. For this purpose Cyphos IL 102 diluted in toluene was employed for the extraction and recovery of Zn and Cd from Zn-C and Ni-Cd batteries leach liquor. The influence of extractant concentration for the leach liquors of Zn-C (0.01–0.05 mol/L) and Ni-Cd (0.04–0.20 mol/L) batteries has been investigated. Composition of the leach liquor obtained from Zn-C/Ni-Cd spent batteries is Zn - 2.18 g/L, Mn - 4.59 g/L, Fe - 4.0 × 10−3 g/L, Ni - 0.2 × 10−3 g/L/Cd - 4.28 g/L, Ni - 0.896 × 10−1 g/L, Fe - 0.148 g/L, Co - 3.77 × 10−3 g/L, respectively. Two stage counter current extraction at A/O 1:1 and 3:2 with 0.04 mol/L and 0.2 mol/L Cyphos IL 102 for Zn and Cd, respectively provide more than 99.0% extraction of both the metal ions with almost negligible extraction of associated metal ions. A stripping efficiency of around 99.0% for Zn and Cd was obtained at O/A 1:1 using 1.0 mol/L HNO3 in two and three counter current stages, respectively. ZnO and CdO were also synthesized using the loaded organic phase and characterized using XRD, FE-SEM and EDX techniques. XRD peaks of ZnO and CdO correspond to zincite and monteponite, respectively. The average particle size was ∼27.0 nm and ∼37.0 nm for ZnO and CdO, respectively. The EDX analysis of ZnO and CdO shows almost 1:1 atomic percentage. © 2017
Citation: Waste Management (2017), 67(): 240-252
URI: https://doi.org/10.1016/j.wasman.2017.05.027
http://repository.iitr.ac.in/handle/123456789/2986
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Counter current simulations
Cyphos IL 102
McCabe-Thiele plots
Nanoparticles
Solvent extraction
Spent batteries
ISSN: 0956053X
Author Scopus IDs: 55496956600
56193939400
7402195167
Author Affiliations: Singh, R., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Mahandra, H., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Gupta, B., Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247 667, India
Corresponding Author: Gupta, B.; Analytical Lab A-214, Department of Chemistry, Indian Institute of Technology RoorkeeIndia; email: dr.binagupta@gmail.com
Appears in Collections:Journal Publications [CY]

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