Study of the Beneficiation Technology for Low-Grade Bauxite

Abstract:

With the decreasing of aluminum/silicon ratio in bauxite, the original technical process make Ore dressing-Bayer process used for producing alumina lost competitiveness. In this experiment, the low-grade bauxite with A/S ratio of about 4 is used as raw material and its composition and dissemination characteristics are analyzed. The selective grinding study shows that the separation by the particle size classification is difficult to improve the A/S ratio of concentrate mineral. Through the flotation experiments, the technological condition for improving the A/S ratio of diaspore by direct--flotation was discussed; the technological and economic indicators of the different beneficiation process were also compared.

• Periodical: Advanced Materials Research (Volume 454)
• Pages: 299-304
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.454.299
• Online since: January 2012
• Authors: Peng Wang, De Zhou Wei
• Keywords: Direct Flotation, Low Grade Bauxite, Ore Dressing Flows, Selective Grinding

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