Silicon oxide slurry and method for producing such slurry
AssigneeElkem ASA
InventorsEldar O Dingsoyr, Magne Dastol, Cor Oldenziel, Bjorn Vassoy
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Abstract
The present invention relates to a slurry containing water, amorphous silica panicles having a particle size less than 1 micron and silica flour with a particle size between 2-200 microns. In order to stablize 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 micron, and silica flour with a particle size between 2-200 microns, 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.
Claims13
A stable, storable slurry consisting essentially of water, amorphous silica particles having a particle size less than 1 um, silica flour with a particle size between 2-200 um, and a preconditioned polysaccharide as a stabilizer, wherein the polysaccharide has been in a water medium for at least 15 minutes before it is added.
A method for the production of a slurry containing water, amorphous silica having a particle size below 1 um, and silica flour with a particle size between 2-200 um, comprising:
- adding a polysaceharide to a slurry of water and amorphous silica, where after mixing the silica flour into the slurry of amorphous silica.
Dependencies are inferred from the claim text.