lithopone

Spodumene belongs to monoclinic crystal system, and the crystals are usually columnar, granular or plate-like. Color is gray, grey-green, purple or yellow, hardness 6.5-7, density 3.03-3.22g/cm³. As raw material of lithium chemical products, it is widely used in lithium chemical industry, glass, ceramic industry, and enjoys the reputation of "industrial MONOsodium glutamate". The application of spodumene in ceramics, metallurgy, porcelain picking, special glass, chemical industry is developing rapidly and expanding day by day. According to the use, chemical composition and smelting process requirements, spodumene is divided into three categories: chemical spodumene, ceramic spodumene and low iron spodumene. Since spodumene is the main mineral source of lithium industry, it is also used to make chemical raw materials. Such as the production of lithium hydroxide, including forging, hot water leaching, evaporation - crystallization process; Some first burn spodumene, and then react with sulfuric acid to produce lithium sulfate, or use soda to convert it to lithium carbonate. Lithium metal can be obtained from simple lithium compounds by electrolysis. Lithium carbonate is also used in aluminum industry at an increasing rate. When aluminum reduction cell is added, the conductivity of molten bath is increased, the operating temperature is reduced and the output is increased.