Research on Mineral Processing Technology of Bauxite Based on Banzhuyuan Deposit in the Central Guizhou

Abstract

Guizhou has a rich bauxite resources, including a part reserves of poor bauxite. Based on a series of the past positive flotation and reverse flotation condition test, we found the reverse flotations are better to improve alumina-silica ratio. In this study, we collected the fresh ore samples in several mining areas in Central Guizhou. And bauxite sintering dissolution tests show that A1₂O₃ dissolution rate is high after the bauxite ingredients sintering, 1# sample and 2# sample dissolution rates are much higher than the flotation recoveries, and because aluminum silicon ratio of 2# sample is a little higher, the dissolution rate can reach 75.64%. The test results show that positive flotation is not fit for poor bauxite, reverse flotation process can obtain a certain effect, and the sintering aluminum process can fully recycle the useful minerals.