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US 6,533,848 B1Granted
Technology and methodology for the production of high quality polymer filler and super-pozzolan from fly ash
AssigneeUniversity of Kentucky Research Foundation
InventorsThomas L. Robl, John G. Groppo
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Abstract
A novel method for producing fly ash material with a range of particle sizes from about 2.0 to about 4.0 μm is provided utilizing superplasticizers. The method produces fly ash material suitable for use as filler material in the plastics industry and super pozzolan for the concrete industry.
Claims20
A method of providing fly ash with a mean particle size in the range of 2-4 μm, comprising:
- slurrying fly ash with water in the presence of a superplasticizer;
- bringing said slurry to a pH of 7.5-10.5;
- and
- elutriating the resulting slurry in a column/hydraulic classifier.
1 more element
A method of providing fly ash with a mean particle size in the range of 2-4 μm, comprising:
- slurrying fly ash with water in the presence of a superplasticizer;
- bringing said slurry to a pH of 8.0-8.9;
- and
- elutriating the resulting slurry in a column/hydraulic classifier.
1 more element
Dependencies are inferred from the claim text.