Abstract
Low-grade diasporic bauxite in central Guizhou Province, China, contains Li that can be exploited and utilized. In this paper, several methods were used to determine the main chemical components in low-grade diasporic bauxite, which were Al2O3, SiO2 and TiO2, and the main minerals were diaspore, boehmite, kaolinite, illite and anatase. Independent Li minerals were not found. According to chemical phase analysis, Al mainly exists in diaspore, boehmite, kaolinite, and illite, while Li mainly exists in clay minerals along with a small amount in diaspore and boehmite. Li is inferred to be mainly ionically connected to the external hydroxyl group of kaolinite and the interlayer of illite; and partially occupies the site of missing hydrion in the diaspore and boehmite crystals.
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