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Study on preparation of high purity lithium carbonate from coarse lithium carbonate

Xue Fengfeng;Guo Wan;Zhou Su;Cao Hengxi;Do-fluoride Chemical Co.,Ltd.;  
At present,the application of lithium carbonate products in China is still mainly rely on imports.An important issue for Chinese lithium industry is how to use the domestic rich lithium raw materials for the production of high-quality lithium carbonate.The crude lithium carbonate produced by a salt lake was used as raw material,and the high purity lithium carbonate was prepared by the combination of water washing,causticization,carbonization,complexation and decarburization etc..The product quality was higher than the standard requirement of YS/T 546—2008,High-Quality Lithium Carbonate.The byproduct of decarburization solution was used for the production of industrial-grade lithium fluoride.Therefore,it′s a new technology route suitable for industrial production of high-quality lithium carbonate.
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