METHOD OF FLOTATION POTASSIUM ORE CONCENTRATION Russian patent published in 2000 - IPC

FIELD: potassium ores processing. SUBSTANCE: method involves grinding and desliming ore, treatment with reagents - primary aliphatic amines and frothing agent and flotation of potassium chloride. Alcohols of dioxane and terpene order are used as frothing agent in combination at the ratio of components at limits (5:95)-(95:5) or alcohols of dioxane order and 2,2,4- -trimethylpentadiol-1,3-monoisobutyrate (synonym is 2,2,4-tri-methyl-3-pentanol-1-isobutyrate) at the ratio of components at limits (5:95)-(95:5) or alcohols of terpene order and 2,2,4- -trimethylpentadiol-1,3-monoisobutyrate (synonym is 2,2,4-tri-methyl-3-pentanol-1-isobutyrate) at the ratio of components at limits (5: 95)-(95:5). To enhance the quality of production terpene alcohols or 2,2,4-trimethylpentadiol-1,3-monoisobutyrate (synonym is 2,2,4-trimethyl-3-pentanol-1-isobutyrate) are added with emulsion of amine and apolar reagent and dioxane alcohols are added with amine aqueous solution. EFFECT: decreased loss of useful component. 2 cl, 2 tbl