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US 9,662,630 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
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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.
Claims33
An agglomerate, comprising:
- a fly ash base material;
- a binding agent comprising a polysulfide binding agent and cement, wherein the polysulfide binding agent comprises one or more of an alkali metal polysulfide, an alkaline earth metal polysulfide, and an organic polysulfide, wherein the agglomerate comprises no more than about 2.5 wt. % cement;
- and
- a leach reduction additive different than the polysulfide binding agent, wherein the leach reduction additive comprises one or more of a liquid alkane, kerosene, paraffin wax, paraffin oil, lamp oil, a fatty acid ester, stearic acid, oleic acid, palmitic acid, a glyceryl fatty acid ester, alkenes, cycloalkanes, methyl cellulose, long chain alkane hydrocarbons with 20 or more carbons, silicone, and of a trihydroxy alcohol ester of one or more of stearic acid, oleic acid and palmitic acid.
1 more element
An agglomerate, comprising:
- an aluminosilicate base material;
- a binding agent comprising a polysulfide binding agent and cement, wherein the agglomerate comprises no more than about 2.5 wt. % cement;
- and
- a flue gas desulfurization solid from the reaction of a flue gas desulfurization agent and an acid gas.
1 more element
A method for solidifying a fly ash polymer comprising:
- receiving an aluminosilicate fly ash base material separated from a waste gas stream;
- and
- contacting the aluminosilicate fly ash base material with water, a binding agent comprising cement and a polysulfide binding agent, and a leach reduction additive to form an agglomerate, wherein the agglomerate comprises no more than about 2.5 wt. % cement, wherein the polysulfide binding agent comprises one or more of an alkali metal polysulfide, an alkaline earth metal polysulfide and an organic polysulfide, wherein the leach reduction additive is different than the binding agent, and wherein the leach reduction additive comprises one or more of a liquid alkane, kerosene, paraffin wax, paraffin oil, lamp oil, a fatty acid ester, stearic acid, oleic acid, palmitic acid, a glyceryl fatty acid ester, cycloalkanes, methyl cellulose, long chain alkane hydrocarbons with 20 or more carbons, silicone, a trihydroxy alcohol ester of one or more of stearic acid, oleic acid and palmitic acid.
Dependencies are inferred from the claim text.