INTEQUI 20941
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Lithium extraction from b-spodumene through chlorination with chlorine gas
Autor/es:
L.I. BARBOSA; G. VALENTE; R.P. OROSCO; J.A. GONZALEZ
Revista:
MINERALS ENGINEERING
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 56 p. 29 - 34
ISSN:
0892-6875
Resumen:
The extraction of lithium by means of the chlorination roasting of b-spodumene has been studied in the temperature range from 1000 to 1100 C for periods of time from 0 to 180 min. The roasting was carried out in a fixed bed reactor using pure gaseous Cl2 as chlorinating agent. The reactants and products were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), atomic absorption spectrometry (AAS), scanning electron microscopy (SEM) and electron probe microanalysis (EPMA). The roasting of b-spodumene with pure Cl2 at 1100 C for the period of 150 min led to quantitative extraction of lithium as lithium chloride. The solid products of the reaction of b-spodumene with Cl2 were found to be Al6Si2-O13 (mullite), and Si2O (cristobalite).
