Optimization of metals extraction from spent lithium-ion batteries by sulphuric acid and sodium metabisulphite through a techno-economic evaluation.
J Environ Manage
; 228: 140-148, 2018 Dec 15.
Article
en En
| MEDLINE
| ID: mdl-30216828
ABSTRACT
The main factors that affect the extraction of metals from spent lithium-ion batteries by acid leaching using H2SO4, and sodium metabisulphite, were evaluated and optimized through a set of experiments, framed by a techno-economic approach. The maximum value of the profit response was obtained with the highest possible values of acid concentration (2.5â¯M) and time (2â¯h), a liquid/solid ratio of 5â¯L/kg, and the lowest possible value of temperature (40⯰C). After leaching, the electrodes active material contained in the metals decreased, while it was still significant in the graphite, as observed by scanning electron microscopy-energy dispersive spectrometry and x-ray powder diffraction. Even though the performed economic evaluation was a summarized outline it can be considered suitable to compare different leaching conditions and to determine the possible best combinations of factors that can optimize the profit response.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Ácidos Sulfúricos
/
Litio
/
Metales
Tipo de estudio:
Health_economic_evaluation
Idioma:
En
Revista:
J Environ Manage
Año:
2018
Tipo del documento:
Article