| abstract |
PROBLEM TO BE SOLVED: To provide a method which can be dispensed, has little dust, and provides a sufficiently stable granular material having a dispersibility equivalent to that of a conventionally used powder. SOLUTION: a) mixing one or more carbon blacks with one or more auxiliary substances which promote processability; b) subjecting the mixture to a compression or briquetting step C) crushing the compressed or briquetted product; d) splitting the crushed product into two or more fractions; e) at least 85% of the particles are at least 80 μm Producing a briquetted and compressed granulate from carbon black and auxiliary substances, wherein the first fraction of one particle is taken as product and the other fraction (s) is taken out of the process how to. Its use for coloring building materials and organic media. |