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Class 588/403 - Explosives, propellants or pyrotechnics, e.g., rocket fuel, napalm (EPO/JPO)


Subclass of Class 588 - Hazardous or toxic waste destruction or containment
Definition: Subject matter wherein the hazardous or toxic substance
No. of patents: 48
Last issue date: 05/15/2012


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NumberTitleIssue Date
8178744Method and apparatus to demilitarize small caliber ammunition
A method and apparatus for the demilitarization of ammunition. The apparatus is comprised of an elongated tubular ammunition conveying chamber having a wall, an inlet opening, and a discharge opening; a heater in thermal communication with the elongated tubular cham...
05/15/2012
8153855Blasting system and blasting method
The object is to rapidly clean-up an off-gas generated by blasting in a pressure vessel to such a level as to permit the exhaust of the off-gas. An object to be blasted is blasted in a pressure vessel to generate an off-gas, which is introduced into a combustion fur...
04/10/2012
7521585Recovery of nitramines and TNT from mixtures thereof
TNT and nitramines, such as RDX, are recovered from mixtures containing same. The present invention more particularly relates to the removal of such mixtures from munitions and the separation of components contained in the munitions. ...
04/21/2009
7501551Method and apparatus for mine and unexploded ordnance neutralization
A method for neutralization of the explosive content of mines and UXO by essentially completely consuming the explosive by combustion or decomposition before any explosion occurs. A charge of a compound that reacts with an extremely high heat-release rate is ignited...
03/10/2009
7427177Method of using pulsed ozone to treat soils containing organic contaminants
A method of treating a solid matrix containing organic contaminants is provided. The method comprises the steps of a) injecting ozone into the solid matrix for a period of time known as the pulse duration; b) interrupting the injection of ozone into the solid matrix...
09/23/2008
7418895Purging an airlock of an explosion containment chamber
Apparatus and methods are provided for purging an airlock cavity created between the airlock access door and the primary explosion chamber opening sealing mechanism. According to one embodiment of the present invention, an airlock device is used to ensure that, in t...
09/02/2008
7373867System for neutralizing a concealed explosive within a container
A system for neutralizing an explosive device concealed within an object by focusing a plurality of energies or fields including electromagnetic, electrostatic, magnetic, or acoustic toward the object thereby inducing detonation. A blast containment enclosure has me...
05/20/2008
7331268Explosive neutralization method and device
A method for neutralizing explosive ordnance is provided. According to an aspect of the method, an energetic charge is activated to produce a shockwave, which is imparted at an effective velocity and temperature on a gas to ionize the gas for creating plasma and to ...
02/19/2008
7249553Process and plant for destroying solid-propellant rocket motors
Described is a process and a plant for destroying rocket motors, including in particular the following steps and stations: cutting of the motor into sections; cooling of the sections containing propellant by immersion in a cryogenic liquid; and fragmenting and extra...
07/31/2007
7240618Explosive device with accelerated bioremediation capacity
Technology for in situ remediation of undetonated explosive material. An explosive apparatus contains an explosive material in close proximity with a carrier containing microorganisms and with nutrient for the microorganisms. An explosive mixture capable of self rem...
07/10/2007
7077044Method for bioremediating undetonated explosive device
Technology for in situ remediation of undetonated explosive device. An explosive device contains an explosive material in close proximity with microorganisms capable of metabolizing the explosive material that are either mobile or temporarily deactivated by freeze d...
07/18/2006
6979758Method and apparatus for mine and unexploded ordnance neutralization
A method for neutralization of the explosive content of mines and UXO by essentially completely consuming the explosive by combustion or decomposition before any explosion occurs. A charge of a compound that reacts with an extremely high heat-release rate is ignited...
12/27/2005
6878856System and method for bioremediating wastestreams containing energetics
A bioremediation system converts a waste stream, at least part of which is a fluid containing energetics, to carbon dioxide (CO2), water, and environmentally benign end products. It uses gas-enhanced sequencing-batch-reactors (SBRs), treating the waste st...
04/12/2005
6143136Method and apparatus for physical and chemical separation and reaction
A method and apparatus for separating volatile from nonvolatile substances, separation of volatile substances, one from the other, and for performing various chemical reactions. In particular, an apparatus which performs these functions utilizing a combin...
11/07/2000
5855763Electrochemical oxidation of matter
Decomposition of waste and particularly organic waste matter is carried out in an electrochemical cell (11) in which the electrolyte comprises nitric acid containing silver ions as an electrochemically regenerable primary oxidizing species. A separation p...
01/05/1999
5849984Method and system for treating waste nitrocellulose
A method for treating waste nitrocellulose, the method comprising the steps f treating nitrocellulose with acid in a hydrolysis process to break the nitrocellulose down to glucose, recovering a majority of the acid by electrodialysis, neutralizing a remain...
12/15/1998
5837149Method for hot and supercritical water oxidation of material with addition of specific reactants
This invention relates to a process for the decomposition of material selected from the group consisting of organic compounds, inorganic compounds, or combinations thereof to compounds which are environmentally acceptable, or are amenable to further degra...
11/17/1998
5660123Method and installation for the destruction of noxious materials
An installation for the batchwise destruction of noxious materials is described. The noxious material is fed batchwise into a combustion furnace holding a burning coal bed which induces combustion or detonation and also serves as damper for explosion frag...
08/26/1997
5593301Apparatus and method for burning energetic material
An apparatus and method for burning combustible material are provided. The apparatus has a combustion chamber with an intake and an exhaust end, a means for injecting combustible material into the intake end of the chamber, a means for igniting the combus...
01/14/1997
5582119Treatment of explosive waste
The invention described herein provides a method and apparatus for the treatment of explosive waste. The method involves the use of a vessel containing a hot granular bed such as sand to ignite the waste and to dampen explosive forces generated by the ign...
12/10/1996
5574203Process and installation for destroying munitions containing toxic agents
The invention relates to a process and an installation for destroying munitions containing toxic agent. The process comprises equipping the munitions with a pyrotechnic fragmentation device and submerging in a pool which is filled with a liquid for neutra...
11/12/1996
5538530Method for safely disposing of propellant and explosive materials and for preparing fertilizer compositions
A one step process is provided which denitrifies explosives and propellants and reclaims the evolved nitrogen therefrom while concurrently modifying the remaining carbonaceous materials into humic acid suitable for plant fertilizer applications. Explosive...
07/23/1996
5536897Beneficial use of energy-containing wastes
A process and composition for the beneficial utilization of waste materials which contain energetic materials are disclosed. Predetermined quantities of the waste material containing energetic materials are placed in admixture with commercial blasting age...
07/16/1996
5530175Disposal of explosive D
A method for converting Explosive D, i.e., ammonium picrate to oxygenated products, particularly hydroquinone or cyclohexanediol and ammonia by hydrogenation over a supported Group VIII metal catalyst. Preferably, the ammonium picrate is dissolved in a su...
06/25/1996
5527983Method for the destruction of noxious materials
Destruction of noxious materials. The noxious material is fed batchwise into a combustion furnace holding a burning coal bed which induces combustion or detonation and also serves as damper for explosion fragments. Burning combustion gases are withdrawn f...
06/18/1996
5523516Method for recycling lithium batteries
A method for processing electric storage batteries, particularly lithium/thionyl chloride batteries, which includes the steps of discharging the batteries, lowering the temperature of the battery components to -180° C., and cutting the battery into piece...
06/04/1996
5523517Destruction of nitramines employing aqueous dispersions of metal powders
A process of degrading nitramines by mixing the nitramine with an aqueous dispersion of metal powders and by heating the mixture is disclosed. HMX and RDX are typical nitramines which are degraded according to the present invention. Metal powders which ha...
06/04/1996
5516970Process and apparatus for photolytic degradation of explosives
A process for photolytic degradation of the organic and nitrogenous components of high explosives in organic solvent is described. The process can be applied with a module photolytic apparatus so that munitions can be destroyed without endangering the env...
05/14/1996
5516971Process for disposal of waste propellants and explosives
An improved non-pyrolytic disposal process for nitrocellulose-based explosives and rocket propellants is disclosed. Explosive and propellant particles are digested by contact of the particles with an aqueous solution containing from about 5 to 20% by weig...
05/14/1996
5495063Process for environmentally safe destruction of pyrotechnic material
In order to work up pyrotechnical material, I. the pyrotechnical material is burned in a controlled manner, the slag is optionally allowed to continue reacting and the crude gas formed is passed through a high-temperature region in which the gas is expose...
02/27/1996
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
5481062Method of destroying explosive substances
The invention relates to a method of destroying explosive substances in which the explosive substances are converted to a pumpable liquid or suspension which is not detonatable but combustible and which can be burned in conventional boilers intended for e...
01/02/1996
5250161Electrochemical desensitization process
Potentially hazardous compositions containing solid combustible fuels, oxidants, nitro-containing, nitramine-containing or nitrato-containing compounds and, in many cases, binders are desensitized by electrolysis at low current and over an extended period...
10/05/1993
5221486Aqueous phase removal of nitrogen from nitrogen compounds
A method is disclosed for denitrification of compounds containing nitrogen present in aqueous waste streams. The method comprises the steps of (1) identifying the types of nitrogen compounds present in a waste stream, (2) determining the concentrations of...
06/22/1993
5220107Process for the preparation of solid rocket propellant and other solid explosives for thermal disposal or reclamation
A method of thermally disposing a binder containing explosive that reduces the possibility of an unplanned detonation and also allows for the control of pollution. It is particularly adapted for solid rocket propellants. The method comprises cooling a bin...
06/15/1993
5211777Desensitization of waste rocket propellants
Waste solid energetic compositions such as waste solid rocket propellant are desensitized for purposes of disposal and burning by being combined with a diluent and a filler which lower the sensitivity, energy output and flame temperature of the compositio...
05/18/1993
5207176Hazardous waste incinerator and control system
A hazardous waste incinerator (100) includes a rotary kiln (120) with a helical flight (250) within. The kiln (120) is fed hazardous waste by either a continuous feed system (164) or a positive feed system (162). The kiln (120) is comprised of six retort ...
05/04/1993
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
5032291Catalytic reduction of nitro- and nitroso- substituted compounds
A process is disclosed for treating water or solids contaminated with a nitro- or nitroso- substituted compound comprising reducing a nitro- or nitroso- substituted compound in the presence of an effective catalytic amount of at least one of a corrin- or ...
07/16/1991
4758387Disposal of solid propellants
Solid propellant is first placed in a closed container with a solution of ter and detergent. A water slurry is then created by injecting compressed air in superheated steam into the solution to place the propellant and solution under several atmospheres o...
07/19/1988
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