Silicon oxide slurry comprising a polysaccharide and method...

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 24/38 (2006.01)

Patent

CA 2489486

The present invention relates to a slurry containing water, amorphous silica particles having a particle size less than 1 µm and silica flour with a particle size between 2 - 200 µm. In order to stabilize the slurry, the slurry contains a polysaccharide. The invention further relates to a method for the production of a slurry containing water, amorphous silica having a particle size below 1 µm, and silica flour with a particle size between 2 - 200 µm, where a polysaccharide is added to a slurry of water and amorphous silica, whereafter the silica flour is mixed into the slurry of amorphous silica.

La présente invention concerne une bouillie contenant de l'eau, des particules de silice amorphes présentant une taille particulaire inférieure à 1 ?m, et de la farine de silice ayant une taille particulaire comprise entre 2 et 200 ?m. En vue de stabiliser la bouillie, cette dernière contient un polysaccharide. Cette invention a aussi trait à un procédé de production d'une bouillie renfermant de l'eau, de la silice amorphe ayant une taille particulaire inférieure à 1 ?m, et de la farine de silice possédant une taille particulaire comprise entre 2 et 200 ?m. Selon ce procédé, un polysaccharide est ajouté à une bouillie d'eau et de silice amorphe, puis la farine de silice est mélangée dans la bouillie de silice amorphe.

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