Abrasion-resistant agglomerate mineral substance granule, powder comprising such granules and production method therefor

摘要

Granule comprising an agglomerate of particles of a mineral substance. The agglomerate is coated with a monolithic outer layer, which provides it with improved abrasion resistance. Powder comprising granules according to the invention. Process for manufacturing the powder according to the invention, which includes an agglomeration step and a coating step.