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河南省是我国铝土矿资源和氧化铝生产的主要基地之一。河南铝土矿大部分是含硅高的中低品级铝土矿。以前的铝土矿选矿研究,主要集中于高岭石——一水硬铝石型铝土矿的碱法浮选。高岭石的化学组成和晶体结构,使以它为主的尾矿的Al_2O_3含量很难
Henan Province is one of the major bases for producing bauxite resources and alumina in China. Most of bauxite in Henan Province is high in the low-grade silica bauxite. Previous bauxite beneficiation studies have focused mainly on alkaline flotation of kaolinite-diasporic bauxite. The chemical composition and crystal structure of kaolinite make the content of Al_2O_3 of tailings based on it difficult