The extraction of lithium from lithium carbonate in salt lake can be obtained by deep demagnetization, carbonization and impurity removal and complex decalcification of lithium-containing brine formed by extracting potassium salt from salt lake brine.

The four most famous bittern lithium mines in the world are uyuni Salt Lake in Bolivia, Atacama Salt Lake in Chile, Wen Bourem Eirto Salt Lake in Argentina and Zabuye Salt Lake in China.

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China's lithium resources are not scarce, but the effective development rate is very low and the dependence on foreign countries is still high. According to the statistics of China Geological Survey, about 82% of lithium resources in China exist in salt lakes in the form of salt lake brine, and salt lake resources in Qinghai and Tibet account for more than 90% of the total salt lake resources in China.

Due to the local mining environment, the low quality of salt lakes and the immature extraction technology, the development of lithium resources has been greatly restricted for a long time in the past. With the breakthrough of lithium extraction technology in domestic salt lakes, high yield can be expected in the future.