PROCESS FOR THE PREPARATION OF FRAGMENTED NATURAL CALCIUM CARBONATE WITH A REDUCED CONTENT OF IMPURITIES AND PRODUCTS OBTAINED THEREOF

摘要

The present invention concerns a process for the preparation of fragmented natural calcium carbonate with a reduced content of impurities by use of a high voltage 5 fragmentation apparatus, as well as products obtained thereof and their use. Furthermore, the present invention refers to the use of a high voltage fragmentation apparatus and a separation step for reducing impurities in at least one natural calcium carbonate and impurities containing material.