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一前言用硫酸从锂辉石中提取锂盐是国外广泛使用的一种方法。由于它具有物料流通量小,生产效率高,能源耗量低,金属回收率高等突出优点。因而用这种方法生产的锂盐约占世界锂盐总产量的60％以上。但是,由于这种方法需要消耗大量的化工原料纯碱和硫酸,在浸出液中杂质含量高,净化负荷量大以及硫酸烟气,腐蚀等缺点,至今国内尚未看到进行系统研究的报告材料。近年来随着国内外对锂盐品种、数量需求量不断增
A preface The extraction of lithium salts from spodumene by sulfuric acid is a widely used method abroad. Because of its small material flow, high production efficiency, low energy consumption, high metal recovery outstanding advantages. Therefore, the lithium salt produced by this method accounts for more than 60% of the total lithium salt production in the world. However, since this method needs to consume a large amount of chemical raw materials such as soda ash and sulfuric acid, high impurity content in the leachate, large purification load, and flue gas and corrosion of sulfuric acid, no systematic report has been reported so far in China. In recent years, with the lithium salt varieties at home and abroad, the increasing demand