| 摘要 |
An object of the present invention is to provide a process to obtain a calcium carbonate material comprising GCC and PCC, presenting a fraction of particles finer than 1 mum of greater than 80%, preferably of greater than 85%, more preferably of greater than 90%, and even more preferably of greater than 95%, and a specific surface area of less than 25 m^2/g, in a cost efficient manner, wherein GCC and PCC are co-ground, possibly with at least another mineral material. An other object of the present invention lies in the co-ground calcium carbonate material in the form of an aqueous suspension and in the form of a dry product. An other object of the present invention lies in the uses of such products in any sector making use of mineral material, and notably in the paper, paint and plastic industries. |
