Back to results
US 10,357,755 B2Granted
Methods for solidification and stabilization of industrial byproducts
AssigneeADA-ES, Inc.
InventorsRamon E. Bisque, Kenneth E. Baldrey, Robin M. Stewart, George Rouse, Natalie Caro
Life of this patent
Estimating the term…
Abstract
An agglomerate is provided that can include an aluminosilicate (ash) base material and one or more of a binding agent or leach reduction agent. Each of the agglomerate and binding agent can include no more than about 25 wt. % cement.
Claims26
A method for solidifying fly ash, comprising:
- receiving an aluminosilicate fly ash separated from a waste gas stream;
- contacting the aluminosilicate fly ash with a leach reduction additive and water to form an agglomerate, wherein the leach reduction additive comprises one or more of a liquid alkane, a paraffin wax dissolved in a short chain alkane solvent having a carbon chain length of 16 or less carbon atoms, a fatty acid ester, stearic acid, oleic acid, palmitic acid, a glyceryl fatty acid ester, an alkene, a cycloalkane, methyl cellulose, a silicone, and a trihydroxy alcohol ester of one or more of stearic acid, oleic acid and palmitic acid.
A method for solidifying fly ash, comprising:
- contacting aluminosilicate fly ash separated from a waste gas stream with a leach reduction additive mixture and water to form an agglomerate, wherein the leach reduction additive mixture comprises one or more of a liquid alkane, a paraffin wax dissolved in a short chain alkane solvent having a carbon chain length of 16 or less carbon atoms, a fatty acid ester, stearic acid, oleic acid, palmitic acid, a glyceryl fatty acid ester, an alkene, a cycloalkane, methyl cellulose, a silicone, and a trihydroxy alcohol ester of one or more of stearic acid, oleic acid, and palmitic acid.
A method for solidifying fly ash, comprising:
- separating fly ash from a waste gas stream generated after the complete or partial combustion of coal particles;
- contacting the separated fly ash with a leach reduction additive mixture and water to form an agglomerate, wherein the leach reduction additive mixture comprises one or more of a liquid alkane, a paraffin wax dissolved in a short chain alkane solvent having a carbon chain length of 16 or less carbon atoms, a fatty acid ester, stearic acid, oleic acid, palmitic acid, a glyceryl fatty acid ester, an alkene, a cycloalkane, methyl cellulose, a silicone, and a trihydroxy alcohol ester of one or more of stearic acid, oleic acid, and palmitic acid.
Dependencies are inferred from the claim text.