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The possibility to use complexing reagents-collectors in floating different rare-earth and rare-metal ore has been studied. A prognostic assessment has been performed of efficiency of organic heteropolar compounds as flotation reagents-collectors on the basis of moleculeпїЅs energy parameters. The interaction has been considered of rare-earth and rare-metal minerals such as eudialite, zirconium, loparite and columbite with complexing reagents. Gain in energy (??) has been calculated by computer modeling at formati...

The use of closed water rotation in enterprises processing phosphorus-containing ores requires a long standing circulating water precipitation in the tailings storage. The paper studies possibility of treatment of industrial mineral processing waters from suspended particles and water-soluble impurities adversely affecting the flotation process with the help of reagents-flocculants. The characteristics of the dispersed and liquid phase of industrial waters formed during the processing of non-sulfide ores (for exam...