The development of new energy vehicles has pushed some metal mines to the forefront, and the battery is the power core of new energy vehicles. Lithium carbonate is a high-end application material, which has high application value in the battery industry. Lithium carbonate is the basic raw material for lithium salt industry, not only can be used directly, but also can be used as raw material to prepare a variety of high value-added lithium salts and their compounds. Electronic grade is a general term for chemicals used in the production process of electronic components, which requires higher purity compared to the general industry, especially in the flat panel display industry or semiconductor industry. Therefore, electronic grade lithium carbonate is lithium carbonate of higher purity.
There are two methods to prepare lithium carbonate, lithium ore extraction and lithium salt lake extraction. Ore lithium has a long history, the technology is relatively mature, the main raw material for the process of lithium pyroxene concentrate, the chemical composition of raw materials is more stable, the process is easy to control, it is easier to prepare high-purity lithium products; due to the large difference in the quality of the salt lake, the cost of preparing battery-grade lithium carbonate also has a large difference, on average, the cost of preparing electronic grade lithium carbonate from lithium in the salt lake is higher than the preparation of electronic grade lithium carbonate with ore; so want to Preparation of electronic grade lithium carbonate is generally used in the method of ore lithium extraction.
Preparation of electronic grade lithium carbonate compared to the preparation of ordinary lithium carbonate is more difficult, the preparation of lithium carbonate equipment requirements are higher. Ore lithium process generally lithium ore after crushing, screening, grinding, classification, mixing, flotation, thickening, filtration and a series of process combinations. Among them, the grinding mill selection is an important link, the size of the grinding fineness directly affects the grade of the concentrate and the product recovery, so it is very important to choose a suitable mill.
Many people like to use ball mills to grind lithium ore, but if you want to produce electronic grade lithium carbonate, it is recommended to use vertical mills. Compared with ball mill, the product of vertical mill has high homogeneity and high purity. This is because the vertical mill works with short finished powder classification time to avoid over-grinding. The lithium vertical mill produced by Liming Heavy Industry can be well used in ore lithium extraction. This equipment integrates crushing, drying, grinding and conveying, with compact structure layout and small footprint, which is only 50% of ball mill, and can deep process the raw material of lithium carbonate.