论文信息 - Lithium extraction from b -spodumene through chlorination with chlorine gas

Lithium extraction from b -spodumene through chlorination with chlorine gas

Abstract The extraction of lithium by means of the chlorination roasting of β-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 β-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 β-spodumene with Cl2 were found to be Al6Si2O13 (mullite), and Si2O (cristobalite).

[1] D. Hildenbrand,et al. Vapor Pressures and Vapor Thermodynamic Properties of Some Lithium and Magnesium Halides , 1964 .

[2] Ya Chen,et al. Preparation of lithium carbonate from spodumene by a sodium carbonate autoclave process , 2011 .

[3] S. Sahu,et al. Metallurgy of Light Metals , 2008 .

[4] Phase transformations of a talc ore under heated chlorine atmosphere , 2013 .

[5] M. El-Naggar,et al. An alternative method for the recovery of lithium from spodumene , 1984 .

[6] Young Han Kim,et al. Development of a metal recovery process from Li-ion battery wastes , 2005 .

[7] Fathi Habashi,et al. Principles of extractive metallurgy , 1969 .

[8] J. Jandova,et al. Processing of spent Li/MnO2 batteries to obtain Li2CO3 , 2006 .

[9] D. Sadoway. Toward new technologies for the production of lithium , 1998 .

[10] Huajun Guo,et al. Extraction of lithium from lepidolite using chlorination roasting–water leaching process , 2012 .

[11] Fathi Habashi,et al. Handbook of extractive metallurgy , 1997 .