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世界上的一水硬铝石型铝土矿数我国储量最大.它是国内生产氧化铝唯一的原料.近年也发现一些一水硬铝石——水软铝石型铝土矿.现把矿石物质成分特征概述如下.矿石化学成分和矿物组分在地区上的分布特征我国铝土矿主要分布于河南、山西、广西、贵州、山东和云南等省.现将各地区矿石的化学成分列于表1;表2列出了主要矿物在地区上的分布特征,此外尚有少量的电气石、板钛矿、钛铁矿、磁铁矿、黄钾铁钒、屑石、石榴石、白钛矿、蛋白石、黑云母、辉石等.由表可见,除广西为低硅、高铁铝土矿外,其余几乎都是高铝、高硅、低铁铝土矿,铝的主要工业矿物是一水硬铝石.
The world’s largest number of diaspore bauxite reserves in China. It is the only raw material for the production of alumina in China. In recent years also found some diaspore - boehmite bauxite now ore The characteristics of the material composition are summarized as follows: Distribution characteristics of ore chemical composition and mineral composition in the region China’s bauxite is mainly distributed in Henan, Shanxi, Guangxi, Guizhou, Shandong and Yunnan provinces now listed in the chemical composition of ore Table 1 shows the distribution characteristics of major minerals in the area. In addition, a small amount of tourmaline, brookite, ilmenite, magnetite, jarosite, crumb, garnet and white titanium Ore, opal, biotite, pyroxene, etc. It can be seen from the table that except Guangxi is a low-silicon, high-iron bauxite ore, the rest are mostly high aluminum, high silicon and low iron bauxite. The main industrial mineral of aluminum is one Diaspore.