FIELD: mining.
SUBSTANCE: diatomite benefication method deals with successive introduction of an aqueous solution of amine oxide into a dispersion of the diatomite in water and then an aqueous solution of alkali metal polyacrylate resulting in disengagement of the beneficated diatomite. The process is carried out while stirring. Disengagement of the beneficated diatomite is carried out within 5-10 minutes. A ratio of solid:liquid (S:L) = 1:4 for the dispersion of the diatomite in water is applied. After both the amine oxide and the alkali metal polyacrylate are introduced the dispersion is being mixed for 3 to 5 minutes. Alkyldimethylamine is used for amine, where the alkyl comprises radical C10H21-C18H37 or C12H25-C14H29.
EFFECT: technology is simplified and at the same time the chemically active materials are avoided.
6 cl, 1 tbl, 1 ex
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