Handleable Calco-Magnesian Suspension

摘要

An aqueous calco-magnesian suspension comprising solid particles fitting the general formula a Ca(OH)2.b Mg(OH)2.c MgO in an aqueous phase at a concentration greater than or equal to 200 g/kg, wherein a, b and c represent mass fractions, the sum of which has a value from 90 to 100% and an additive which is simultaneously a viscosity reducer and a viscosity increase moderator, wherein said additive is a phosphonate or a phosphonic acid.

主权项

1. An aqueous calco-magnesian suspension comprising solid particles fitting the general formula a Ca(OH)2.b Mg(OH)2.c MgO in an aqueous phase at a concentration greater than or equal to 200 g/kg, wherein a, b and c represent mass fractions, the SUM of which has a value from 90 to 100% and an additive which is simultaneously a viscosity reducer and a viscosity increase moderator, characterized in that said additive is a phosphonate or a phosphonic acid, selected from the group consisting of aminoalkylene polyphosphonic acids, wherein the alkylene radical contains from 1 to 20 carbon atoms, of hydroxyalkylidene polyphosphonic acids, wherein the alkylidene radical contains from 2 to 50 carbon atoms, phosphono-alkanepolycarboxylic acids, wherein the alkane group contains from 3 to 12 carbon atoms and wherein the molar ratio of the alkylphosphonic acid radical to the carboxylic acid radical is in the range from 1:2 to 1:4, derivatives thereof and mixtures thereof.