Methods for stabilizing hydrous kaolin
AssigneeBASF SE
InventorsMichael Barron SIGMAN, Sharad Mathur, Kenneth W. Folmar, Timothy M. Young
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Abstract
This invention is directed to a method of stabilizing high solid slurries, like kaolin slurries, the method comprises causticizing the sodium polycrylate or polyacrylic acid used in a dispersant blend to a pH of above 9. The method comprises a homogeneous dispersant blend of sodium carbonate, sodium polyacrylate, sodium silicate, and sodium hydroxide. This invention is also directed to a method of stabilizing high solid slurries, like kaolin slurries, by adding sodium polyacrylate at an acidic pH range or polyacrylic acid solution to the slurries: and adding a blend of solid ash and sodium silicate to the slurries.
Claims16
A method of stabilizing high solid slurries, the method comprises causticizing the sodium polyacrylate or polyacrylic acid used in a dispersant blend to a pH of above 9.
A method of stabilizing high solid slurries, the method comprises
- adding sodium polyacrylate at a low pH to the slurries:
- and
- adding a blend of solid ash and sodium silicate to the slurries.
A method of stabilizing high solid slurries, the method comprises
- adding polyacrylate acid solution to the slurries:
- and
- adding a blend of solid ash and sodium silicate to the slurries.
Dependencies are inferred from the claim text.