INQUIMAE 12526
INSTITUTO DE QUIMICA, FISICA DE LOS MATERIALES, MEDIOAMBIENTE Y ENERGIA
Unidad Ejecutora - UE
artículos
Título:
Sustainable Selective Extraction of Lithium Chloride from Natural Brine Using a Li 1-x Mn 2 O 4 Ion Pump
Autor/es:
MARCHINI, FLORENCIA; CALVO, ERNESTO J.; WILLIAMS, FEDERICO J.
Revista:
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Editorial:
ELECTROCHEMICAL SOC INC
Referencias:
Año: 2018 vol. 165 p. 3292 - 3298
ISSN:
0013-4651
Resumen:
The spontaneous electrochemical extraction of lithium chloride from natural brine of high altitude salt flats in Northwest Argentina and recovery in a dilute electrolyte is demonstrated in two experiments: i) a highly selective LiMn2O4 insertion cathode and polypyrrole anion selective anode (salt capturing) and ii) an LiMn2O4 anode and lithium deficient Li1-xMn2O4 cathode separated by anion selective membrane (selective ion exchange). The entropy driven transfer of LiCl from concentrated brine to a dilute recovery electrolyte has been experimentally studied by ion pumping and the LiCl activity measured in natural brine.
