INVESTIGADORES
ESQUIVEL Marcelo Ricardo Oscar
artículos
Título:
Simple process for lithium extraction from α-spodumene with potassium fluoride: modeling and optimization
Autor/es:
G.D.ROSALES; A.C. RESENTERA; P. BRAGA; M.R. ESQUIVEL; M.RODRIGUEZ
Revista:
CHEMICAL ENGINEERING RESEARCH & DESIGN
Editorial:
INST CHEMICAL ENGINEERS
Referencias:
Lugar: Londres; Año: 2023 vol. 191 p. 319 - 324
ISSN:
0263-8762
Resumen:
New developments in energy storage technologies have positioned lithium as a critical energyelement worldwide. For this reason, it is relevant to investigate new processes that exploit Liresources comprehensively and efficiently.This work describes a simple methodology for Li extraction by solid-solid reaction between α-spodumene and KF and subsequent leaching. The operational parameters investigated were:temperature, calcination time, and amount of fluorinating agent. The process efficiency wasanalyzed through Design of Experiments (DOE) and Artificial Neural Networks (ANN) to obtain a predictive model of the system. Optimal Li extraction of 94% was achieved at 779°C, 43 min, with a KF/spodumene ratio of 0.56 w/w.
