Coated discrete particle, method for preparation thereof,...

Details Coated discrete particle, method for preparation thereof,... Coated discrete particle, method for preparation thereof,...

C - Chemistry, Metallurgy

09

K

C09K 5/06 (2006.01) B01J 13/02 (2006.01)

Patent

CA 2690189

The invention provides a coated particle, as well as a method for the preparation thereof and a material or object in which such a particle is applied. The particle consists of a core material and a coating layer. The core material is a homogeneous composition of a salt hydrate and an additive chemical. The salt hydrate provides to the particle its specific technical properties and the additive chemical is chemically bound to the coating layer. The composition of the coating layer is, dependent on the application, mainly determined by the applications and the raw chemicals used.

L'invention concerne une particule revêtue, ainsi qu'un procédé pour la préparation de celle-ci et un matériau ou un objet dans lequel une telle particule est utilisée. La particule est constituée d'un matériau de noyau et d'une couche de revêtement. Le matériau de noyau est une composition homogène d'un sel hydraté et d'un additif chimique. Le sel hydraté donne à la particule ses propriétés techniques spécifiques et l'additif chimique est lié chimiquement à la couche de revêtement. La composition de la couche de revêtement est principalement déterminée en fonction de l'application, et dépend de ces dernières et des matières premières chimiques utilisées.

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