FIELD: chemistry.
SUBSTANCE: method of obtaining at least one inorganic substance and/or at least one pigment containing natural and/or precipitated calcium carbonate, preferably natural, simultaneously partially organophilic and partially hydrophilic, comprises the following steps: a) obtaining at least one inorganic substance and/or at least one pigment containing natural and/or precipitated calcium carbonate, preferably natural, in dry form or in form of aqueous dispersion and/or suspension, b) if needed, dry grinding and/or grinding in aqueous medium of the inorganic substance and/or pigment obtained at step a), c) treating the inorganic substance and/or pigment obtained at step a) and/or step b), d) if needed, drying the inorganic substance and/or pigment obtained at step a) and/or b) and/or c). Step c) corresponds to a step for mixing in aqueous medium and/or grinding in aqueous medium and/or concentration in aqueous medium of the inorganic substance and/or pigment obtained at step a) and/or step b) in the presence of at least one ethylene acrylic acid salt. A dispersant and/or grinding agent is added before and/or during the treatment step c).
EFFECT: invention enables to increase content of dry substance in calcium carbonate suspensions while maintaining satisfactory viscosity without formation of agglomerates.
67 cl, 1 tbl, 1 ex
