Process for the production of water containing carbon black preparations
AssigneeDegussa AG
InventorsGerhard Kuhner, Wilhelm Berndt, Lothar Rothbuhr, Hans Wagner
Life of this patent
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Abstract
Beaded carbon black is disclosed with a water content of 30 to 80% by weight which are used for coloring of paper and concrete. The product has the advantage of dust-free handling and a higher jet black color compared to conventional carbon black powder.
Claims5
A process for the production of water containing carbon black preparations comprising producing furnace blacks, lamp blacks or gas blacks in a continuous production process, separating said blacks from exhaust gases, continuously feeding the blacks to a pin shaft granulator used for the production of carbon black granules wherein the water is adjusted such that the preparations contain between 30 and 80% of water, thereby obtaining well dispersable preparations in the form of a non-dusting powder, beads, or liquid, and then packaging said preparations.
Dependencies are inferred from the claim text.