Patent ID: 11873218
Assignee: PöRNER INGENIEURGESELLSCHAFT M.B.H.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 32:
33. The method of claim 1, wherein the target sodium silicate solution comprises:
biogenic silica in an amorphous state;
sodium hydroxide; and
water, wherein the target sodium silicate solution has a ratio R of SiO2:Na2O by weight that is greater than or equal to 1.8, wherein the target sodium silicate solution has a combined chloride ion and sulfate ion concentration that is equivalent to less than or equal to 250 ppm in a standardized sodium silicate solution that has approximately 37% solids by weight and that has a ratio R by weight of SiO2 to Na2O that is approximately 3.3, and wherein the target sodium silicate solution has a total organic content that is equivalent to less than approximately 30 ppm in the standardized sodium silicate solution.