Training Manual . — Minsk: BSTU, 2008. 174 s. This manual outlines the theoretical foundations of mineral enrichment; General information about minerals, their composition and enrichment indicators are considered ; Such preparatory operations as crushing, grooving (classification), grinding described gravitational and flotation methods of enrichment, as well as equipment and schemes used in the implementation of these methods. In addition, the issues of enrichment of chemical raw materials, namely apatite and phosphorite ores, sulfur and potassium ores. are considered. The manual is intended for students of specialty 1-48 01 01 "Chemical technology of inorganic substances, materials and products" specialization 1-48 01 01 01 "Technology of production of mineral fertilizers, salts and alkalis" . Foreword by . General information on minerals. Characteristics of enrichment methods. Mineral Enrichment Process Indicators. Mineral Enrichment Schemes . Crushing of ores. Jaw crushers. Cone crushers. Roller crushers. Hammer crushers. Crushing of ores (classification by size), Classification of rumblings. Colossal Thunderbolts . Flat rocking rattles. Flat Vibrating Thunderbolts . Drum rattles. Fragmentation and Groping Schemes . Single-stage circuits. The scheme of splitting in two stages with preliminary and span grating. Three-stage crushing scheme with preliminary and span grating. Subtle grinding of ores . Scheme and principle of operation of the ball mill . Mill Classification. Classification by fine grinding. Shrinkage and classification schemes. Gravitational enrichment methods. Hydraulic classification (classification in the current and ascending jet), Hydraulic classifiers. Resignation. Types of machines. Enrichment in heavy liquids and suspensions. Enrichment in a stream of water on an inclined surface. Flotation enrichment methods. Flotation reagents. Reagents-gatherers. Reagents-foaming agents. Reagents-regulators. The main forms of fixation of flotation reagents on the surface of mineral particles and air bubbles . Mineralization of air bubbles during flotation. Flotation foams . Flotation machines. Classification of Flotation Machines . Mechanical flotation machine of the system "Mechanobr"Flotation machines of pneumatic type . Column Pneumatic Flotation Machine. Foam Separation Flotation Machine. Pneumomechanical flotation machines. Technology of flotation enrichment of ores . Mineral composition of ore. Size, shredding. Pulp Density. Composition of the liquid phase of the pulp. Reagent Mode. Schemes of flotation. Enrichment of chemical raw materials . Apatite ores . Brief description of ores and requirements for concentrates. Technological schemes and regimes of enrichment . Phosphorite ores. Brief description of ores and requirements for concentrates. Technological processes of enrichment of phosphorite ores . Enrichment of bile phosphates. Enrichment of plastic phosphates. Enrichment of shell phosphates. Sulphur ore . Characteristics of ores and quality requirements of sulfur. Methods of enrichment of ores of native sulfur . Enrichment schemes and regimes . Potassium ore. Characteristics of ores and minerals. Methods of processing and enrichment of ores . Technological schemes of enrichment and processing of ores . List of used literature