LIME-AND-MAGNESIUM SUSPENSION, WHICH IS CONVENIENT IN USE Russian patent published in 2017 - IPC C01F5/14 C01F5/02 C01F11/02 

FIELD: chemistry.

SUBSTANCE: aqueous lime-magnesia suspension contains solid particles corresponding to the general formula aCa(OH)₂⋅bMg(OH)₂⋅cMgO⋅dI in which a, b and c are weight fractions, the sum of which is from 90 to 100%, I is a material that can contain impurities selected from materials based on SiO₂, Al₂O₃, Fe₂O₃, MnO, P₂O₅ SO₃, Calcium oxide, CaCO₃ and MgCO₃, and d is from 0 to 10 wt %, in an aqueous medium. The concentration of solids is greater than or equal to 200 g/kg. The lime-magnesia suspension also contains an additive which is simultaneously a viscosity reducing agent and a viscosity retarding agent. The additive is a phosphonate or phosphonic acid, which are present in an amount of an active acid greater than or equal to 0.05 wt % and less than or equal to 5 wt %.

EFFECT: invention makes it possible to increase the concentration of solids in the slurry with decreasing viscosity and slowing the viscosity increase when storing lime milk.

32 cl, 29 tbl, 11 ex