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A Model of Physico-Mechanical Characterization of Sangaredi bauxites and Related Rocks Taking into Account Their Litho-Genetic Type

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Journal of Minerals and Materials Characterization and Engineering 2024年第6期12卷 281-298页

作者： Oumar Keita Mory Diane Department of Hydrology University of Nzrkor Nzrkor Guinea Guinea Bauxite Company Kamsar Guinea

The Sangarédi bauxite deposit in the Republic of Guinea contains several bauxite types depending on their litho-genetics. For rational and sustainable exploitation, determining the physical and mechanical properties of these different bauxite types is essential for mining companies. This paper presents a model for the physico-mechanical characterization of Sangarédi bauxites according to their litho-genetic type. Eight pits were drilled, and samples were collected from different layers at different depth intervals for each bauxite type. Physical and mechanical characterization tests were then carried out on 27 samples to determine the following parameters: water of absorption (%), compressive strength (kgf/cm2) and dynamic tensile strength (kgf/cm2). The effect of depth of sampling on these physico-mechanical parameters was evaluated. An average value of the parameters was made for each bauxite type. The results showed that the physico-mechanical characteristics of bauxites depend on the depth of sample collection, and the average value of the parameters constitutes the representative values of the bauxite type. Finally, a comparative study of the average value of the physico-mechanical parameters of the different bauxite types was carried out.

关键词： bauxites Litho-Genetics Physico-Mechanical Compressive Strength Dynamic Tensile Strength

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Minerals of bauxites and Residues: Problems of Processing and Enrichment (Russia)

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矿物学报 2013年第S1期33卷 70-70页

作者： Olga Kotova Galina Gasaleeva Aleksandr Vakhrushev Institute of Geology Komi SC UB RAS SyktyvkarRussia OJSC Uralmekhanobr EkaterinburgRussia

The complex of mineralogical methods was developed to obtain reliable data about mineral composition of bauxites and new crystal-chemical information (the whole cycle of used chemical elements, methods of residue utilization, position of residue tails in dump pits). Natural and technogenic structures were studied as sources of necessary chemical elements and useful properties.

关键词： mineral bauxites mineral residues processing and enrichment of bauxites and residues

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