FIELD: chemistry.
SUBSTANCE: invention relates to sorption methods of cleaning solutions from cations of heavy metals and can be used for extraction thereof from waste water of enterprises of various profile and liquid radioactive wastes. In the method of producing calcium silicate to liquid glass diluted with water, calcium chloride solution is added with excess of 1.1–1.5 from stoichiometrically required while stirring and a solution of polyvinylpyrrolidone in amount of up to 5.0 % of weight of calcium chloride. Precipitate is separated, washed and dried.
EFFECT: production of powders of calcium silicate of specified dispersion.
4 cl, 3 tbl, 3 ex
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