Subject · Mining engineering
Xüsusi zənginləşdirmə üsullarıTopics
Topic plan
The subject's topics and the learning outcomes attached to each one.
1. Introduction. general information. classification of special enrichment methods.
LectureAn introduction to special beneficiation methods of minerals. fields of application of these methods, economic importance and differences from traditional methods (flotation, gravity). classification of methods according to physical and chemical principles.
2. Sorting: theoretical basis and equipment of manual and mechanical sorting.
LectureClassification of ores according to color, luster and shape. the history of manual sorting and the working principle of modern mechanical (automated) sorting equipment.
3. Optical separation method, theoretical bases and equipment.
LectureOptical separation based on light reflection, emission and luminescence properties of minerals. construction and industrial application of photometric and luminescence separators.
4. Radiometric method, theoretical basis and equipment.
LectureSeparation based on natural radioactivity or artificially generated radiation properties. application of x-ray and gamma radiation separators.
5. Enrichment method for firmness and bulkiness.
LectureSelective crushing and screening processes based on the difference in mechanical strength (hardness) of rocks. theoretical basis of differentiation of fractions by size.
6. Detailed information about the decryption method.
LectureThe process of self-crushing (decryption) of some minerals due to the stresses inside the crystals or the expansion of gas-liquid contents during heating. theory of thermal decomposition.
7. Theoretical basis of chemical alkalization.
LectureChemical alkalization (leaching), which is the basis of hydrometallurgy. selection of solvents, thermodynamic and kinetic laws. cyanization and acid leaching processes.
8. Theoretical basis of bacteriological alkalization.
LectureExtraction of metals from sulphide ores with the help of microorganisms (for example, thiobacillus ferrooxidans) (bioleaching). environmental and economic advantages of the biological oxidation process.
9. Magnetic enrichment method. theoretical basis of the process.
LectureSeparation process based on differences in magnetic susceptibility (ferromagnetic, paramagnetic, diamagnetic) of minerals. the intensity of the magnetic field and the role of the lines of force.
10. Electromagnetic separators, types, working principles.
LectureConstruction of dry and wet electromagnetic separators. working principles of weak and strong magnetic field separators, adjustment of magnetic systems.
11. Electromagnetic enrichment schemes, types, their explanation.
LectureSequential magnetic circuits used in beneficiation of ferrous and rare metal ores. technological mode parameters of basic, control and cleaning operations.
12. Electrical enrichment method. theoretical basis of the process.
LectureA method based on differences in electrical conductivity, dielectric permittivity, and frictional electrification of minerals. separation theory in electrostatic and corona discharge fields.
13. Electrical separators, types, working principles.
LectureDrum, plate and free-fall type electric separators. types of electrodes that create a corona discharge (corona) and installation schemes of machines.
14. Electrical enrichment schemes, types, explanation.
LectureSchemes of enrichment of rare metal raw materials (for example, titanium-zirconium powders) in the electric field. combination of the process with other methods.
15. Other special enrichment methods, promising methods.
LectureInnovative and promising enrichment methods such as ultrasound, microwave, artificial intelligence-based sensor separators (sensor-based sorting) and plasma technologies.