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Class 588/314 - By treatment in molten chemical reagent, e.g., salts or metals (EPO/JPO)


Subclass of Class 588 - Hazardous or toxic waste destruction or containment
Definition: Process wherein the reaction takes place in a chemical
No. of patents: 59
Last issue date: 03/09/2010


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NumberTitleIssue Date
7674947Recirculating combustion system
The recirculation combustion system is installed in the exhaust stream of a combustion chamber to increase exhaust cleanliness and thermal efficiency. The system directs hot exhaust gases through a filtering system to remove the larger particulate materials and poll...
03/09/2010
7338645Method and system for reducing decomposition byproducts in a methanol to olefin reactor system
Disclosed is a method and system for reducing the formation of metal catalyzed side-reaction byproducts formed in the feed vaporization and introduction system of a methanol to olefin reactor system by forming and/or coating one or more of the heating devices, feed ...
03/04/2008
7336692Induction furnace for melting semi-conductor materials
An induction furnace includes an induction coil, an electrically non-conductive crucible having an inner diameter disposed within the induction coil, and an electrically conductive member disposed below the crucible and having an outer diameter which is further from...
02/26/2008
7288234Glycols as an adjuvant in treating wastes using the Molten Salt Oxidation process
An improved system and method for using polyethylene glycol (PEG) as a processing fluid additive for safely and effectively treating water-wet hogout propellant as well as any other water-wet propellants, explosives and hazardous wastes (solids and liquids) to make ...
10/30/2007
7265254Waste processing method, waste processing system, integrated waste processing method, and integrated waste processing system
Chlorine-containing waste is processed inside a heating device, an alkali metal compound and a calcium compound are given into the heating device while the temperature of a solid phase inside the heating device is maintained at 400 to 1500° C., chlorine that is con...
09/04/2007
7247293Process and apparatus for the production of hydrogen and carbon dioxide from the gasification of raw materials
A process for the producton of pure syngas (hydrogen and carbon dioxide) by fast gasification of liquid, muddy, or solid raw materials, either produced for the purpose or from industrial processes in which they can not be recycled, or fuels from wastes or biomass, w...
07/24/2007
7156897Anti-infection and toxin elimination device
The invention provides an apparatus for removing airborne pathogens and toxic substances from a surface of an article or a volume of air, comprising: a main processing chamber having a door for ingress to and egress from the main processing chamber, at least two hig...
01/02/2007
7060242Method for treating waste materials containing halogen
In a method for the treatment of halogen containing waste materials wherein valuable materials and/or energy can be recuperated without the generation of additional halogenated waste materials, the halogen containing waste materials are mixed with a molten substitut...
06/13/2006
7052661Method for abatement of mercury emissions from combustion gases
A process for removing mercury from a feed of coal, heavy oil or other mercury contaminated material is disclosed. The feed is thermally decomposed, preferably within, or above, a molten metal bath under reducing conditions, to produce a vapor product and non-vapor ...
05/30/2006
7034198Method for decomposing plastic
A conventional method of pyrolytically decomposing plastic to make low-molecular compounds is poor in efficiency of use of energy due to high heating temperatures (at least 600° C. and 800° C. at maximum). The invention provides that a functional powder is ...
04/25/2006
6984767Sonication treatment of polychlorinated biphenyl contaminated media
The invention consists of a method for treating polychlorinated biphenyl (PCB) contaminated media by: a) combining the media with a fluid containing one or more liquid hydrocarbons to form a media/fluid mixture; b) sonicating the mixture at audio frequency to extrac...
01/10/2006
6069290Waste treatment process and reactant metal alloy
A waste treatment process includes charging a reactor container (12) with a reactant alkaline metal alloy (10) and isolating the reactant alloy from oxygen gas. After heating the reactant alloy (10) in the reactor container (2) to a minimum of 770 degrees...
05/30/2000
5866095Method and system of formation and oxidation of dissolved atomic constitutents in a molten bath
A method and system is disclosed for converting a feed, such as a carbonaceous waste, to dissolved atomic constituents for subsequent oxidation of the dissolved atomic constituents. The feed is injected into a molten bath which, at a sufficient temperatur...
02/02/1999
5858059Method for injecting feed streams into a molten bath
First and second feed streams are injected into a molten bath, thereby creating first and second jets. The first and second jets combine to form a substantially planar, or fan jet, region within the molten bath. The first and second feed streams can inclu...
01/12/1999
5795285Conversion of contaminated sediments into useful products by plasma melting
A system for treating contaminated sediments dredged from waterways is disclosed. Dredged sediments are divided into coarse and fine fractions. The coarse fraction is washed to remove contaminants. The fine fraction and the contaminants removed from the c...
08/18/1998
5765489Process for the treatment of solid residue from refuse incineration plants, and apparatus for performing the process
A process for the treatment of solid residue from a refuse incineration plant, involving: melting the solid residue in a first heating chamber under oxidizing conditions to provide a melt; reducing any heavy metal compounds present in the melt to elemental met...
06/16/1998
5743937Earth melter with rubble walls and method of use
The present invention is an improvement to the earth melter described and claimed in U.S. Pat. No. 5,443,618. The improvement is the use of rubble for retaining walls. More specifically, the retaining walls rest on ground level and extend above ground lev...
04/28/1998
5744117Feed processing employing dispersed molten droplets
A method and an apparatus produce a product in at least one phase from an organic component in a feed gas stream. The method includes forming a process zone including a process molten bath and a process gas space disposed over the process molten bath. Mol...
04/28/1998
5695732Method for treating a halogenated organic waste to produce halogen gas and carbon oxide gas streams
A method relates to treating a halogenated organic waste to produce halogen gas and carbon oxide gas streams. The method includes directing a halogenated organic waste, having a halogen-to-hydrogen atomic ratio of less than about one, into a molten metal ...
12/09/1997
5679132Method and system for injection of a vaporizable material into a molten bath
A method and apparatus are disclosed for injecting vaporizable material, such as a vaporizable waste, into a molten bath. A gas is injected into the molten bath at a rate which is sufficient to cause the gas and the molten bath to form a gaseous dispersio...
10/21/1997
5615626Processing of municipal and other wastes
The process provides for disposal of waste materials, including municipal waste such as garbage, industrial wastes, waste materials including rubber and plastics based materials, and ash waste from municipal waste incinerators and toxic waste incinerators...
04/01/1997
5613241Treatment of halogen-containing waste and other waste materials
A process for treating a halogen-containing waste material. The process provides a bath of molten glass containing a sacrificial metal oxide capable of reacting with a halogen in the waste material. The sacrificial metal oxide is present in the molten gla...
03/18/1997
5613245Method and apparatus for injecting wastes into a molten bath with an ejector
The present invention relates to a method and an apparatus for injecting a particulate solid into a molten bath. The method includes forming a liquid stream and directing a first portion of the stream through an ejector for subsequent injection into a mol...
03/18/1997
5571486Method and apparatus for top-charging solid waste into a molten metal bath
A method and apparatus for top-charging a solid waste into a molten metal bath to form a dissociation product are disclosed. The method includes introducing the waste into the molten metal bath through a refractory tube disposed in a reactor, containing t...
11/05/1996
5553558Equipment and process for surface treatment of hazardous solids and slurries with molten alloy
A process and equipment for treating a solid or semi-solid waste by moving the waste across a surface of a reactive metal alloy in an oxygen deficient atmosphere and separating for recycling the resultant dissolved metals while feeding the resultant off g...
09/10/1996
5537940Method for treating organic waste
Organic waste is treated in a molten metal bath to sequentially form enriched hydrogen gas and carbon oxide gas streams. The method includes introducing organic waste to a molten metal bath in the absence of a separate oxidizing agent and under conditions...
07/23/1996
5496392Method of recycling industrial waste
The present invention relates to a process for the production of metal alloys, metal oxides and slag-based products, such as mineral wool, from industrial waste materials. More specifically, the present invention relates to a process for recycling industr...
03/05/1996
5491279Method for top-charging solid waste into a molten metal bath
A method and apparatus for top-charging a solid waste into a molten metal bath to form a dissociation product are disclosed. The method includes introducing the waste into the molten metal bath through a refractory tube disposed in a reactor, containing t...
02/13/1996
5491280Injector nozzle for molten salt destruction of energetic waste materials
An injector nozzle has been designed for safely injecting energetic waste materials, such as high explosives, propellants, and rocket fuels, into a molten salt reactor in a molten salt destruction process without premature detonation or back burn in the i...
02/13/1996
5489734Method for producing a non-radioactive product from a radioactive waste
A method is disclosed for producing a non-radioactive product from a radioactive waste composition that includes a radioactive component and a non-radioactive component. The method includes directing the radioactive waste into a molten metal bath. A separ...
02/06/1996
5476990Waste management facility
An industrial waste management facility (IWMF) for disposing of spent potlining includes a co-current gas-fired rotary kiln for containing a molten pool of spent potlining throughout the entire length of the rotary kiln from the inlet to the outlet, an as...
12/19/1995
5301620Reactor and method for disassociating waste
A reactor for dissociating waste in a molten metal bath includes a vertical reaction section for containing a molten metal bath and a horizontal separation section extending from an upper portion of the vertical reaction section. A waste is directed into ...
04/12/1994
5298233Method and system for oxidizing hydrogen- and carbon-containing feed in a molten bath of immiscible metals
A method and a system for catalytically converting a hydrogen component in a hydrogen- and carbon-containing feed to dissolved hydrogen and for oxidizing the dissolved hydrogen to water is disclosed. Hydrogen- and carbon-containing feed, such as municipal...
03/29/1994
5271341Equipment and process for medical waste disintegration and reclamation
A process and equipment for pyrolyzing packaged biomedical waste in a reactive metal alloy in an oxygen deficient atmosphere and separating for recycling the resultant carbon, glass, and metal while venting resultant hydrogen and nitrogen from an aqueous ...
12/21/1993
5191154Method and system for controlling chemical reaction in a molten bath
A method and a system is disclosed for controlling chemical reaction of a feed. The feed is directed into a reactor containing a molten bath to at least partially chemically react the feed to form an intermediate component. A portion of the intermediate c...
03/02/1993
5177304Method and system for forming carbon dioxide from carbon-containing materials in a molten bath of immiscible metals
A method and a system for converting carbon-containing feed to atomic carbon and for oxidizing atomic carbon to carbon dioxide is disclosed. Carbon-containing feed, such as municipal garbage, low grade fuel oil and organic or inorganic sludge is introduce...
01/05/1993
5000101Hazardous waste reclamation process
This Hazardous Waste Reclamation process pyrolyzes hazardous waste such as PCB (polychloro-biphenyl) in a closed system in a molten alloy, containing some aluminum, at a minimum of 800 degrees C. to form activated carbon that is recovered from the circula...
03/19/1991
4869749Chemical dehydrogenation of molten ferrous alloys using a halogen-containing compound
The present invention is a process for the removal of hydrogen from molten ferrous alloys in the unkilled state via a chemical reaction with a halogen-containing compound. The halogen-containing compound is typically introduced into the molten alloy in th...
09/26/1989
4695447Destruction of inorganic hazardous wastes
Hazardous waste containing inorganic compounds which contain heavy metals or particular hazardous anionic groups or which are hazardous halides or non-metal oxides or sulfides is contacted with molten aluminum to provide reduction to lower less hazardous ...
09/22/1987
4666696Destruction of nerve gases and other cholinesterase inhibitors by molten metal reduction
Cholinesterase inhibiting agents such as nerve gas agents and pesticide agents are destroyed by reaction with molten aluminum and the gaseous products are analyzed and recycled if they are not essentially free of such agents....
05/19/1987
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