Class / Patent application number | Description | Number of patent applications / Date published |
106405000 | Fly ash, coal ash, or bottom ash or derived therefrom | 13 |
20080271641 | Hydraulic Binder - In an alkali activated hydraulic binder containing slags and aluminium silicates slag, in particular furnace slag in amounts from ≧20% (w/w), aluminium silicates different from furnace slag such as for example flue-ash and natural aluminium silicates, such as for example basalt, clays, marl, andesite or zeolite, in amounts from 5 to 75% (w/w) and an alkali activator in an amount, which corresponds to a Na | 11-06-2008 |
20090314185 | TREATMENT OF FLY ASH - Treated carbon-containing fly ash with reduced surfactant-adsorbing capacity is prepared by processing involving contacting the fly ash with ionized gas prepared from a humid gas feed, such as humid air. Treated fly ash with reduced ammonia content is prepared by processing involving contacting the fly ash with ionized gas prepared from a humid gas feed, such as humid air, or exposing the fly ash to microwave radiation or ultraviolet radiation. | 12-24-2009 |
20100006008 | APPARATUS AND METHOD FOR DISSOLUTION REACTION - When fly ash is added to a cement kiln to materialize it after being desalinated by washing, scale is prevented from growing in a dissolution reaction apparatus depositing calcium-containing compounds dissolved in slurry, and the fly ash is effectively used as a cement material. A dissolution reaction apparatus according to the invention comprises: a dissolution tub | 01-14-2010 |
20100319581 | Pyroprocessed aggregates comprising IBA and low calcium silicoaluminous materials and methods for producing such aggregates - In accordance with an embodiment, a method for producing an aggregate is disclosed comprising mixing IBA and a second, silicoaluminous material having a calcium content less than the IBA. The method further comprises agglomerating the mixture, such as by pelletizing, and pyroprocessing the agglomerates, such as by sintering or vitrification, to form the aggregate. The second material may be a clay, such as bentonite or kaolin, a mining waste, such as granite sawing residues, waste glass, or furnace bottom ash, for example. The addition of the second material has been found to facilitate production of lightweight and normal weight aggregates. Preferably, the IBA or the mixture of IBA and the second material are wet milled prior to agglomeration. Methods for producing expanded aggregates are also disclosed. | 12-23-2010 |
20110174193 | PYROLYZED RUBBER PRODUCTS AND PROCESSES - A pyrolysis process is provided. The process includes the steps of: depositing a quantity of waste into a porous container, the porous container adapted to allow a convective stream of substantially anaerobic gas to flow therethrough; inserting the porous container into a pyrolysis thermal processor; sealing the thermal processor; circulating the convective stream of gas through the pyrolysis thermal processor; heating the waste according to a first time-temperature profile to pyrolyze the waste and form a carbonaceous char; and cooling the carbonaceous char by circulating the convective stream of gas through a cooler. An oil product and a gaseous hydrocarbon product are produced during the pyrolysis. The carbonaceous char is further processed to form a carbon black product and a recyclable metal product. | 07-21-2011 |
20120174825 | METHOD AND INSTALLATION FOR BENEFICIATION OF FLY ASH PARTICLES BY FLASH COMBUSTION - The invention concerns a method for beneficiation of fly ash particles comprising:
| 07-12-2012 |
20120216715 | TREATMENT OF FLY ASH FOR USE IN CONCRETE - A process for treating fly ash to render it highly usable as a concrete additive. A quantity of fly ash is obtained that contains carbon and which is considered unusable fly ash for concrete based upon foam index testing. The fly ash is mixed with a quantity of spray dryer ash (SDA) and water to initiate a geopolymerization reaction and form a geopolymerized fly ash. The geopolymerized fly ash is granulated. The geopolymerized fly ash is considered usable fly ash for concrete according to foam index testing. The geopolymerized fly ash may have a foam index less than 40%, and in some cases less than 20%, of the foam index of the untreated fly ash. An optional alkaline activator may be mixed with the fly ash and SDA to facilitate the geopolymerization reaction. The alkaline activator may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof. | 08-30-2012 |
20120216716 | TREATMENT OF FLY ASH FOR USE IN CONCRETE - A process for treating fly ash to render it highly usable as a concrete additive. A quantity of fly ash is obtained that contains carbon and which is considered unusable fly ash for concrete based upon foam index testing. The fly ash is mixed with an activator solution sufficient to initiate a geopolymerization reaction and for a geopolymerized fly ash. The geopolymerized fly ash is granulated. The geopolymerized fly ash is considered usable fly ash for concrete according to foam index testing. The geopolymerized fly ash may have a foam index less than 35% of the foam index of the untreated fly ash, and in some cases less than 10% of the foam index of the untreated fly ash. The activator solution may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof. | 08-30-2012 |
20130068138 | PROCESS AND PLANT FOR LOWERING THE RESIDUAL CARBON CONTENT OF ASH - A process for lowering the carbon content in ash includes introducing the ash having a carbon content of 1 to 20 wt.-% into a reactor where the ash is burnt at a temperature between 700 and 1100° C. Fuel is also introduced into the reactor. During combustion, microwave radiation is fed into the reactor. At least part of the energy released during the combustion is recovered. | 03-21-2013 |
20140033952 | METHOD AND APPARATUS FOR PRODUCING BLACK DYE PIGMENT - A method for recording a volume transmission hologram having angularly multiplexed diffraction fringe patterns that can cooperate to display polychromatic images and can be recorded with a single wavelength exposure source. | 02-06-2014 |
20140373752 | METHOD AND APPARATUS FOR PRODUCING BLACK DYE PIGMENT - The present invention relates to a method and an apparatus for producing the raw material ( | 12-25-2014 |
20150013570 | METHOD OF PROCESSING PAINT SLUDGE - In a method of processing paint sludge, measured portions of the sludge are supplied into a heating chamber for pyrolysis at about 1500° F. to disintegrate into organic and inorganic portions, the organic portion in the form of syngas is then drawn out, cooled, and pressurized to be used in kilns or combustion chambers, whereas the inorganic portion in the form of ash is directed to a calciner, where it is heated at about 1500° F. in a controlled presence of oxygen and cooled to have it ready for the reuse in paint manufacturing. | 01-15-2015 |
20160068436 | PROCESS FOR PRODUCING A FINE CEMENT AGGREGATE FROM RED MUD PRODUCED DURING THE PROCESS OF BAUXITE REFINING (THE BAYER PROCESS) - PROCESS FOR PRODUCING A FINE CEMENT AGGREGATE FROM RED MUD PRODUCED DURING THE PROCESS OF BAUXITE REFINING (THE BAYER PROCESS), presents an invention regarding the production of a fine additive for Portland cement from Red Mud, which is a byproduct of bauxite processing by the Bayer process. In the present invention the material is mixed and then thermally treated so as to develop phases of interest via decompositions and/or crystallizations. The product may contain up to 30% of other byproducts or argillaceous raw materials. | 03-10-2016 |