Lithium extraction from β-spodumene through chlorination with chlorine gas

被引：116
|
作者：
Barbosa, L. I. [1 ,2 ]
Valente, G. [2 ]
Orosco, R. P. [1 ]
Gonzalez, J. A. [1 ,2 ]
机构：
[1] Univ Nacl San Luis Chacabuco & Pedernera, Inst Invest Tecnol Quim INTEQUI CONICET, RA-5700 San Luis, Argentina
[2] Univ Nacl Cuyo, Inst Ciencias Basicas, RA-5500 Mendoza, Argentina
来源：
MINERALS ENGINEERING | 2014年 / 56卷
关键词：
Roasting; Chlorination; beta-spodumene; Lithium; RECOVERY;
D O I：
10.1016/j.mineng.2013.10.026
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The extraction of lithium by means of the chlorination roasting of beta-spodumene has been studied in the temperature range from 1000 to 1100 degrees C for periods of time from 0 to 180 min. The roasting was carried Out in a fixed bed reactor using pure gaseous Cl-2 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 beta-spodumene with pure Cl-2 at 1100 degrees C for the period of 150 min led to quantitative extraction of lithium as lithium chloride. The solid products of the reaction of beta-spodumene with Cl-2 were found to be Al6Si2O13 (mullite), and Si2O (cristobalite). (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：29 / 34
页数：6
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