FIELD: chemistry.
SUBSTANCE: invention relates to production of powder, use thereof in aqueous suspensions, in waste treatment, as a chemical additive or as a soil conditioner. The invention includes a method of producing powder based on a metal hydroxide and a metal oxide which is self-dispersed in water. Metal oxide powder is treated partially with a polymer in the form of an aqueous emulsion and/or solution, so that the dry weight content of metal hydroxide in said powder is lower than 99% of the total weight thereof. Said polymer is a water-soluble homopolymer or copolymer containing at least one vinyl monomer. In a particular version, the polymer is a water-soluble copolymer containing a vinyl monomer and a non-ionic monomer, and the metal is calcium and/or magnesium.
EFFECT: invention improves dispersibility of metal hydroxides in water.
22 cl, 2 dwg, 7 tbl
Authors
Dates
2012-04-10—Published
2007-12-11—Filed