C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 18/02 (2006.01)
Patent
CA 2377826
The invention relates to coloring pigment granulates and a method for producing the same. The aim of the invention is to provide a granulate and a method for economically producing the same. Said granulate disintegrates very quickly once added to a building material that is to be colored. To this end, the granulates are comprised of granulate cores which do not contain binding agents, which have a granular size ranging from 0.1 to 8 mm and which are enclosed by an enveloping layer made of a material that can be broken down. In addition, the granulates have a moisture content < 30 % and the granulates that do not contain binding agents are produced in a pregranulator, are compacted immediately after granulation and are subsequently subjected to a screening process. Lastly, the useful granular fraction that has been separated out during the screening process is enclosed with an enveloping material. The invention relates to coloring pigment granulates for coloring building materials, especially for coloring concrete, and to a method for producing coloring pigment granulates.
L'invention vise à mettre au point un produit sous forme granulaire et un procédé de production économique d'un tel produit sous forme granulaire qui se désagrège très rapidement, une fois ajouté à un matériau de construction à colorer. Selon l'invention, il est prévu à cet effet que les granulés se composent de noyaux exempts de liant de grandeur particulaire comprise entre 0,1 et 8 mm, entourés d'une couche protectrice en matériau destructible. Il est également prévu que les granulés présentent moins de 30 % d'humidité. Les granulés exempts de liant sont produits dans un prégranulateur, puis sont compactés immédiatement après granulation avant d'être soumis à un criblage. Les grains de la fraction utile résultant du criblage sont enrobés d'un matériau de protection. L'invention concerne en outre des pigments colorés sous forme granulaire s'utilisant pour colorer des matériaux de construction, notamment pour teinter du béton, ainsi qu'un procédé permettant de produire des pigments colorés sous forme particulaire.
Herrmann Bernd
Noack Bernd
Mcfadden Fincham
Rhein-Chemotechnik Gmbh Gesellschaft Fur Chemisch-Technische Erz
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