MINERAL COMPOSITION MADE FROM A MIXED SOLID PHASE OF CALCIUM AND MAGNESIUM CARBONATES, METHOD OF PREPARING SAME AND USE THEREOF

摘要

Mineral composition based on a mixed solid phase of calcium and magnesium carbonates, its preparation process and its use. Mineral composition based on a mixed solid phase of calcium and magnesium carbonates, formed of a crystallized calcium part and a magnesian part crystallized in the form of platelets, the crystals of the calcium part and those of the magnesium part being aggregated in the form of composite aggregates, these aggregates themselves being at least partially agglomerated, said calcium part comprising at least one carbonate chosen from the group consisting of calcite, aragonite and their mixtures, said magnesium part comprising hydromagnesite in platelet form, said mixed solid phase having a bulk density less than or equal to 250 kg / m3, and greater than or equal to 80 kg / m3, measured according to standard EN 459.2.