B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 13/00 (2006.01) C01B 33/14 (2006.01) C04B 12/00 (2006.01) C04B 12/04 (2006.01) C04B 14/04 (2006.01) C04B 28/00 (2006.01) C04B 28/24 (2006.01)
Patent
CA 2411480
The present invention is directed to a colloidal aqueous silicate dispersion containing silica and alumina, the molar ratio between silica and alumina being 2 - 12, as well as to a method for its preparation. Said method is characterized by dissolving a particulate mineral material, such as a mineral wool or fibre product containing silica and alumina in a molar ratio of 2 - 12 in an aqueous solution, nucleating and stabilizing the so obtained solution, and optionally adjusting the dry matter content of the dispersion so obtained. The said dispersion can also be made to gel. The invention is also directed to the use of the dispersion as a binder.
La présente invention concerne une dispersion de silicate colloïdale aqueuse, contenant de la silice et de l'alumine dont le rapport molaire entre la silice et l'alumine est compris entre 2 et 12. L'invention traite aussi d'un procédé pour sa préparation. Ce procédé consiste à dissoudre un matériau minéral particulaire, comme un produit de fibres ou de laines minérales à base de silice et d'alumine selon un rapport molaire de 2 à 12, dans une solution aqueuse, à provoquer la nucléation et la solution de ladite solution, et éventuellement à ajuster la teneur en matières sèches de la dispersion ainsi obtenue. Ladite dispersion peut également être du gel. La présente invention concerne également l'utilisation de cette dispersion comme liant.
Le Bell Jean
Perander Michael
Mccarthy Tetrault Llp
Paroc Group Oy Ab
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