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6907994 |
Process for converting wet fly ash into dry useful industrial products
There is provided a process for converting wet fly ash into a useful product such as cement replacement or industrial filler. A first amount of wet fly ash is provided. The wet fly ash is fed into...
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6890507 |
Ozone treatment of fly ash
Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and over saturation with ozone is avoided. In a further embodiment...
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6821333 |
Color effect materials and production thereof
A color effect material is described as composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a highly reflective layer which acts as a reflector...
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6802898 |
Method for preparing fly ash for high compressive strength concrete and mortar, and compositions thereof
The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention relates to hardenable mixtures comprising cement...
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6802896 |
Concrete aggregate
The present invention relates generally to a method of forming a lightweight fly ash aggregate together with the resultant fly ash aggregate. The invention further relates to various aspects of the...
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6783585 |
Carbon removal through partial carbon burn-out from coal ash used in concrete
Concrete's durability to freeze-thaw cycles is dependent on its level of air entrainment, the appropriate level of which is achieved with the aid of surface active or air entraining agents. These...
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6716293 |
Wallboard with fly ash
A composition used in making wallboard is provided. The composition requires at least fly ash, water and a first binder. The composition is located between two members that together form the...
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6695902 |
Asphalt composites including fly ash fillers or filler blends, methods of making same, and methods for selecting or modifying a fly ash filler for use in asphalt composites
The present invention is a fly ash filler or filler blend having a particle size distribution with at least three modes that when combined with asphalt produces asphalt composites such as roofing...
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6669773 |
Fly ash/mixed plastic aggregate and products made therefrom
The present invention is directed at a synthetic lightweight aggregate composition comprising fly ash and a mixture of two or more polymer components. More specifically, the present invention is...
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6613138 |
Manufactured granular substrate and method for producing the same
A manufactured granular substrate composition suitable for use as a carrier for active chemical agents. The composition includes one or more mineral components having a bulk density greater than...
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6605146 |
Systems and methods for producing and using fine particle materials
Systems and methods of making and using fine particle materials in pigment blends and for using the aforementioned pigment blends in paint, coating, or coloring compositions are provided. This...
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6589654 |
Construction material and method
Construction material from granular material reclaimed from the ash of a municipal waste combustor wherein the ash is subjected to sorting and separating recovered metals, the granular material...
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6537933 |
Silk cloths for protecting affected parts
Silk clothes for protecting affected parts (incised wound, burn, tumor, bedsore, etc.) which also contribute to the prevention of suppurating. These clothes are composed of a knitted woven silk...
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6521037 |
Ozone treatment of fly ash
Carbon-containing fly ash has been treated with optimum amounts of ozone. There is homogenous treatment of the fly ash with ozone and oversaturation with ozone is avoided.
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6242098 |
Method of making mineral filler and pozzolan product from fly ash
A method for producing a mineral filler and pozzolan product from fly ash is provided in which fly ash is dry processed in an air classifier to obtain a fine fraction having an average particle...
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6139960 |
Method of making a mineral filler from fly ash
A method for producing a mineral filler from fly ash is provided in which fly ash is dry processed in an air classifier to obtain a fine fraction having an average particle size of from about 0.1...
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6136089 |
Apparatus and method for deactivating carbon in fly ash
An apparatus and method for improving the properties of carbon-containing fly ash through ozonation is described. The apparatus includes a chamber for containing the fly ash and an ozonator that...
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5988396 |
Ultrasonic conditioning and wet scrubbing of fly ash
Processes for treating fly ash to enhance the fly ash as a pozzolan for portland cement mixes and to separate therefrom a substantial carbon compound and/or to increase the fineness of the fly ash...
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5897943 |
Metal matrix composite including homogeneously distributed fly ash, binder, and metal
Metal matrix composites comprising of a solid preform comprising of a filler phase containing fly ash and a binding material having a binder to water ratio of 1:1 to 1:9, wherein the preform...
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5887724 |
Methods of treating bi-modal fly ash to remove carbon
A method of reducing the carbon content of a dry bi-modal fly ash includes subjecting the bi-modal fly ash to dry vibrating screen separation into a carbon rich component and a carbon depleted fly...
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5840179 |
Ultrasonic conditioning and wet scubbing of fly ash
Processes for treating fly ash to enhance the fly ash as a pozzolan for portland cement mixes and to separate therefrom a substantial carbon compound and/or to increase the fineness of the fly ash...
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5817230 |
Method for improving the pozzolanic character of fly ash
A method for improving the pozzolanic character of fly ash includes the steps of first hydraulically classifying and then flotation separating the fly ash in order to reduce particle size...
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5769936 |
Method for producing fly ash granules
A method for producing fly ash granules, which comprises mixing 100 parts by weight of fly ash, from 0.001 to 1 part by weight of a water-soluble polymer having from 2 to 80 mol %, based on the...
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5484479 |
Method of manufacturing synthetic aggregate
A method for making synthetic aggregate. Fly ash is combined with water to form a soil-like mixture. The mixture is then compacted into slabs and allowed to set. After setting, the material is...
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5484476 |
Method for preheating fly ash
A method for preheating particles of carbonaceous fly ash prior to injecting the particles of fly ash into a combustor. In the method, the particles of fly ash are introduced into a preheating...
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5399194 |
Method of fly ash beneficiation and apparatus for same
A method for beneficiating particles of fly ash containing carbon which includes the following steps. The particles of fly ash are introduced into a dry bubbling fluid bed and air is supplied...
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5364572 |
Process for making high-strength synthetic aggregates
A process for making high-strength aggregates including hydrating calcium oxide containing coal combustion ash for a sufficient period of time to convert a high percentage of the calcium oxide to...
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5286292 |
Method of treating fly ash and fly ash cement
Commercially available fly ash is prepared and charged in a vessel. A halogen gas is supplied to the vessel and is brought into contact with the fly ash in the vessel.
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5279657 |
Optically variable printing ink
Articles and methods for forming optically variable thin film flakes and replicated coatings having preselected optical properties. The articles generally comprise a flexible web of material and an...
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5245114 |
Immobilization of lead in bottom ash
Bottom ash arising from solid waste combustion has lead (Pb) sufficient quantity to sometimes fail the EPA TCLP test. Addition of water-soluble phosphate, especially phosphoric acid, increases the...
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5227047 |
Wet process for fly ash beneficiation
A wet process for the beneficiation of a fly ash by-product has the following steps: a) forming a slurry mixture of a fly ash material and a liquid; b) gravitationally separating and collecting a...
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5160539 |
Method and product of fly ash benefication by carbon burnout in a dry bubbling fluid bed
This invention relates to an apparatus, method and product wherein fine particles of fly ash containing carbon are oxidized in a dry, bubbling fluid bed of previously introduced fine particles of...
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5152837 |
Building component containing coal ash
Described is the process for forming a hardenable mixture of a coal ash comprising free CaO and free CaSO 4 .0 H 2 O. In order to remove all free CaO the coal ash is mixed with a fly-ash...
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5137753 |
Pelletizing ash
Ash from a fluidized bed combustor in which limestone particles are suspended in the presence of carbonaceous fuel being burned is pelletized. Lime-containing bed ash ("FBCR") is produced in the...
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5002611 |
Process for manufacturing a hardenable mixture containing coal ash process for manufacturing hardenend granules containing coal ash and building component containing coal ash
Described is the process for forming a hardenable mixture of a coal ash comprising free CaO and free CaSO 4 .OH 2 O. In order to remove all free CaO the coal ash is mixed with a fly-ash...
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4624711 |
Light-weight aggregate
A light-weight aggregate, for use in production of light-weight structural products, composed of a self-hardening fly ash, a surfactant foam, and optionally an accelerator and additives. The...
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4602962 |
Process for producing an expanded mineral material
An expanded mineral material suitable for use as a filler, e.g. instead of or in addition to sand or gravel in concrete mixes, is produced by dropping a stream of solid pellets into a rising stream...
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4426282 |
Process for the separation of coal particles from fly ash by flotation
Flotation of fly ash to recover coal contained therein is carried out in at least two steps, pH of the flotation slurry in the first step being 6-8, and in the last step lower than in the first...
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4352856 |
Shaped rigid articles containing fly ash and resin
A method of manufacturing shaped rigid articles comprises preparing a mixture of thermally stable particulate material and a liquid resin having a viscosity of less than about 10 Stokes to form a...
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4336069 |
High strength aggregate for concrete
Concretes containing a hydratable cementitious binder such as Portland cement and a high strength aggregate material are described. The high strength aggregate material is produced from hydrated...
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4243429 |
Process for producing tobermorite and ettringite
A lime material and a siliceous material containing 10 to 40% by weight of alumina are admixed with an alkali solution, and the mixture is subjected to hydrothermal reaction with saturated water...
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4212682 |
Process and apparatus for producing an aggregate material from bottom ash
A process and apparatus are disclosed for producing a cinder material useful as an aggregate in building materials such as building blocks or paving materials. The aggregate is produced from solid...
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4121945 |
Fly ash benificiation process
A wet process is disclosed for the beneficiation of electrostatic fly ash to provide therefrom a series of products which have higher commercial value than the raw fly ash, including a carbon...
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4120738 |
Light weight aggregate and method for making same
A light weight aggregate is described which is formed of fly ash and solids derived from the caustic extract filtrate produced in a kraft pulping process. In a method for producing the light weight...
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4071369 |
Method of manufacturing porous ceramic products by reacting flue gas dust and filter dust with clays or the like, such as expanded clay
A method for manufacturing porous ceramic products by mixing ceramic material with a fly dust containing silica and metal oxides and having a large specific surface area of at least 20 m 2 /g. The...
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4062694 |
Stable particulate suspensions
Methods and apparatus are disclosed for providing homogeneous liquid suspensions of materials that are not readily wet by the liquid. Sulfonate based dispersants in combination with a gelling grade...
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4043831 |
Densification of coal fly ash
Densified fly ash pellets are produced by the steps comprising: A. Sizing the fly ash to produce a fraction substantially finer than -200 mesh (U.S. Standard); B. Moistening the sized...
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3977892 |
Agglomeration of finely divided particles
Strong aggregates of high density are produced from fine particles by heating said particles, then combining a binder solution comprising a saturated, dendritic crystal-forming aqueous sodium...
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3977891 |
Road-surfacing compositions containing filler materials
A filler material for a road paving composition is described, the material having a low sensitivety to water and having fine gravel, pebbles and an organic binder selected from the group consisting...
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3957528 |
Process for the production of aggregates for concrete by utilization of the residues from the combustion of predominantly organic material
A process for the production of the aggregates for concrete by utilization of the residues from the combustion of predominantly organic material comprising the steps of burning said material,...
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