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Title Hydrometallurgical treatment of spent lithium ion batteries using environmentally friendly leachant and extractant
ID_Doc 68321
Authors Sahu, S; Devi, N
Title Hydrometallurgical treatment of spent lithium ion batteries using environmentally friendly leachant and extractant
Year 2023
Published Journal Of Material Cycles And Waste Management, 25, 6
DOI 10.1007/s10163-023-01754-0
Abstract The necessity to preserve the environment and accomplish the rising demand for precious metals has made recycling of spent lithium-ion batteries (LIBs) crucial for conducting business in a sustainable way. An eco-friendly leaching process using ascorbic acid has been suggested in this work to leach critical metals from the spent calcined LIB sample. The optimum leaching of Li (100%) and Co (99.8%) was achieved under optimal conditions, such as 0.8 mol/L ascorbic acid, 60 min of leaching time, 70 & DEG;C temperature, and 50 g/L pulp density. To understand the leaching mechanism, detailed leaching kinetics was addressed using several reaction models. In contrast to conventional solvent extraction methods, especially with regard to environmental concerns, the undiluted green solvent Aliquat 336 has been employed in this work to separate critical metals without the use of toxic diluents. The thiocyanate form of Aliquat 336 (Aliquat 336-SCN) was used for the selective extraction of Co without the coextraction of Li. The extraction of cobalt reached 99.9% at 1:1 phase ratio and 2 stages of counter-current extraction. Following the four stages of cross-current stripping with 2.5 mol/L KSCN at a 1/5 O/A ratio, about 99.4% of Co was recovered.
Author Keywords Ascorbic acid; Spent LIBs; Leaching; Aliquat 336-SCN; Extraction
Index Keywords Index Keywords
Document Type Other
Open Access Open Access
Source Science Citation Index Expanded (SCI-EXPANDED)
EID WOS:001025249800001
WoS Category Environmental Sciences
Research Area Environmental Sciences & Ecology
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