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5434337 |
Process for destroying toxic substances occurring during the elimination of organic refuse components
A process for destroying toxic substances is described by irreversible substance decomposition of chemically relatively stable molecular structures occurring during the heat treatment of organic...
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5431113 |
Equipment and process for molten alloy treatment of hazardous liquids and slurries
Equipment and process for using molten alloy in a low oxygen atmosphere for destruction of hazardous compounds and partial or complete extraction of heavy metals in slurries and solids with...
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5430230 |
Method for disposing of organohalogen compounds by oxidative decomposition
Disclosed herein is a method for disposing of organohalogen compounds by oxidative decomposition to make them harmless, without secondarily forming carbon monoxide and halogen gas, said method...
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5430231 |
Process for the disposal of chlorinated organic products by sulphonation or nitration and subsequent oxidation
A process for the disposal of chlorinated organic products, wherein said products are first treated with a sulphonating or nitrating agent, and then are oxidized with an aqueous solution of H 2 O...
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5424045 |
Combustion and catalytic remediation of hydrocarbon contaminated soil
Combustible hydrocarbon gas from a contaminated zone of soil and/or water is abated by removing hydrocarbon gas from the zone, combusting a first portion of the hydrocarbon gas in an internal...
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5417825 |
Method for photothermal destruction of toxic organic compounds
A method and apparatus for photothermal detoxification of toxic organic compound is provided. The apparatus includes a thermally insulated reaction vessel maintained at a temperature greater than...
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5416247 |
Chemical disposal of halocarbons
Halogen-containing organic compounds are reacted with alkali metal or earth alkaline metal carbonate and/or oxide to convert the halogen component of the compound to halide of the metal, thus...
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5414201 |
Combined sorbent/catalyst system
A process and a sorbent/catalyst composition are described for the oxidation of volatile organic compounds. The process uses the steps of adsorbing a volatile organic compound in a first segment of...
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5414202 |
Method for rapid decomposition of methyl chloromethyl and bis(chloromethyl) ethers
Surfaces contaminated with chloromethylmethyl ether and bis-chloromethyl ether may be decontaminated by treating them with an aqueous solution of a basic organic amine, for example a tertiary...
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5414200 |
Non-metallized and subtoichiometric metallized reactions with ammonia and other weak bases in the dehalogenation of refrigerants
Ozone depleting fluorocarbon compounds are dehalogenated through more economic reduction reaction with solvated electrons formed from lower equivalents of reactive metals than previously used by...
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5414207 |
Method for rendering waste substances harmless
A method is provided for the treatment of hydrocarbon-contaminated soil by chemical hydrolysis and/or oxidation of the hydrocarbons in the hydrocarbon-contaminated soil. The method includes...
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5414199 |
Apparatus and method for two-stage oxidation of wastes
An apparatus and method for oxidizing wastes in a two-stage process. The apparatus includes an oxidation device, a gas-liquid contacting column and an electrocell. In the first stage of the...
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5414204 |
Method of treating refractory activated carbon by exposure to ionizing radiation
The improved method of treating activated carbon having an organochlorine compound adsorbed thereon which comprises adding water to said activated carbon and then exposing said activated carbon to...
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5414203 |
Treatment of particulate material contaminated with polyhalogenated aromatics
The specification discloses a method for the treatment of particulate material contaminated with polyhalogenated aromatic compounds (PHAs). The method includes vaporizing the PHAs from the material...
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5397551 |
Incinerator
The present invention relates to an incinerator devised to incinerate various kinds of wastes including medical and food wastes. Up to this time, the waste containing an explosive chemical...
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5393394 |
Method and apparatus for decomposing organic halogen-containing compound
Disclosed is a method and an apparatus for decomposing organic halogen-containing compounds by using ultraviolet radiation. In the decomposition method, the organic halogen-containing compound is...
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5391305 |
Dehalogenation of halogenated hydrocarbons in aqueous compositions
A process for dehalogenating hydrocarbon compounds that contaminate aqueous compositions is disclosed. The process admixes the contaminated aqueous composition with ferrous oxide. The use of citric...
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5387734 |
Process for decomposing polyhalogenated compounds
The invention relates to a process for the decomposition of polyhalogenated aliphatic compounds having 1 to 8 carbon atoms, polyhalogenated cycloalkyl compounds having 5 to 8 carbon atoms and...
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5386080 |
Apparatus and methods for controlling high temperature gases
The contaminants in the material are volatilized in a drum having a burner. The volatilized contaminants are separated from material particulates in a separator and are preheated in a heat...
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5385710 |
Diffusion resistant refractory for containment of fluorine-rich molten salt
Diffusion resistant refractory such as alumina for containment of destructive fluorine and fluorine compounds in the molten salt oxidation of fluorine-containing organic waste, formed of a porous...
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5386079 |
Wastewater treatment process
Wastewaters which are contaminated with heterocyclic aromatic compounds, especially wastewaters contaminated with biocidal heterocyclic aromatic compounds, or the by-products and intermediates...
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5382736 |
Method for catalytic dechlorination of polychlorinated biphenyls
An improved method for the dechlorination of polychlorinated biphenyls that are dissolved in an organic solvent, which comprises the incremental additions of a hydrogen transfer agent, such as...
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5376354 |
Process for disposal of waste by combustion with oxygen
A process for the disposal of refuse is characterized by combustion of combustible, solid, pasty or liquid waste materials in a combustion plant with a combustion gas containing at least 50%...
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5362468 |
Process for the pyrolysis of fluid effluents and corresponding apparatus
The pyrolysis process for fluid effluents in an enclosure, where they are transformed into solid and gaseous products is characterized in that the said effluents are heated on contact with solid...
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5362402 |
Enhanced remediation of aqueous compositions contaminated with halogenated hydrocarbons
A process for significantly improving the rate of dehalogenation of aqueous compositions contaminated with halogenated hydrocarbon compounds is disclosed. The process involves admixing the...
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5358657 |
Reactive compositions containing superoxide ion for the degradation of halogenated organic compounds
Reagent compositions suitable for use in degrading and detoxifying polyhalogenated organic compounds comprising an aprotic solvent having dissolved therein (a) an effective amount of hydrogen...
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5354940 |
Method for controlling chemical reaction in a molten metal 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 metal bath to at least partially chemically react the feed to...
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5354962 |
Apparatus for decomposing halogenated organic compound
A halogenated organic compound is introduced into a plasma. In the plasma state, substances are very reactive and chemical substances which are not readily decomposed such as halogenated organic...
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5347068 |
Method of simultaneous disposal of solid and liquid wastes
Method for simultaneous disposal of solid and liquid wastes including the steps of gasifying in a fixed bed pressure gasifier a gasification material containing coal and 1 to 70% of a solid waste...
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5345032 |
Use of metal chelate complexes in dehalogenation
A method for dehalogenation of organohalogen compounds, e.g. environmental pollutants in industrial waste. The organohalogen is reacted with a reducing agent in the presence of a selected...
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5344630 |
Deep oxidation of halogenated organics with porous carbonaceous materials
A method for oxidizing halogenated organic compounds comprising passing a mixture of the halogenated organic compound and excess oxygen over a catalyst comprising a carbonaceous material under mild...
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5345031 |
Reduction of aromatic halide content
The halide content of halogenated aromatic hydrocarbons such as PCBs can be reduced by treatment with a reagent comprising (i) at least one complex of a transition metal of group 4 or 5 with a...
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5336842 |
Process and device for cleaning polluted solids
The process for cleaning polluted solids by crushing the solids and removing the pollutants consists of mechanically fluidizing the crushed solids, through-blowing them with air and irradiating...
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5325795 |
Mobile material decontamination apparatus
A technique for decontaminating material, including disposing a grid network of perforated pipes on a base, and covering the same with contaminated soil. A barrier layer is laid on the contaminated...
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5326467 |
Recovering polychlorinated biphenyls from solution
A method of recovering polychlorinated biphenyls from solution, which comprises a multi-step method of mixing and reacting an alkali metal or alkaline earth hydroxide in glycol solution with...
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5316663 |
Process for the treatment of halogenated hydrocarbons
A process to convert organic waste streams containing halide compounds to produce hydrogenated organic compounds and to recover the resulting hydrogen halide as an anhydrous product stream.
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5314614 |
Process for hydrotreating an organic feedstock containing olefinic compounds and a halogen component
The invention provides a process for hydrotreating an organic feedstock containing thermally unstable compounds and a halogen component by means of contacting the organic feedstock and a gaseous...
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5308458 |
Destruction process
A process for the decomposition of photocatically degradable organic material includes exposing the organic material to ultraviolet light as the material is passing across the surface of a spinning...
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5308507 |
Method and apparatus for removing organic contaminants
A method and apparatus for destroying organic compounds is described. The apparatus utilizes a mixture of oxidants to "burn" the organic compound. The oxidants can be generated in a separate...
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5304702 |
Process of decomposing chlorofluorohydrocarbons
Polyhalogenated organic compounds, such as polychlorinated dibenzodioxines, dibenzofurans, biphenyls, biphenyl ethers, phenols, benzenes and cyclohexanes as well as chlorofluorohydrocarbons are...
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5301620 |
Reactor 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...
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5292409 |
Cathode and process for degrading halogenated carbon compounds in aqueous solvents
Aqueous solutions of halogenated carbon compounds containing at least one halogen atom and capable of undergoing nucleophilic substitution are degraded by electrolytically generating superoxide ion...
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5290432 |
Method of treating toxic aromatic halogen-containing compounds by electrophilic aromatic substitution
An improved method for detoxifying waste materials contaminated with halogenated aromatic hydrocarbons is disclosed. The method provides for detoxification of halogenated aromatic compounds by...
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5276249 |
Catalysts for the destruction of halogenated organics
A new class of metal-exchanged, metal-impregnated zeolite catalysts has been prepared for the oxidation of halogenated organics including chlorinated, fluorinated and chloro/fluoro hydrocarbons....
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5273629 |
Method and apparatus for separating contaminants from fluidizable solids and converting the contaminate to less toxic or non-toxic materials
A process and apparatus for treating any fluidizable solid material having an organic oxidizable contaminant absorbed or adsorbed thereon, particularly a sludge contaminated with polychlorinated...
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5264654 |
Method and apparatus for processing contaminated soils
A method of and apparatus for decontaminating contaminated soils and similar materials, the method includes (a) drying and comminuting contaminated soil and similar material in a mill through which...
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5254796 |
Oxidation process
The invention relates to an ecologically favorable process for the hydrolytic decomposition of halogen-containing compounds of the formula CX 4 or CHX 3 or mixtures of these compounds, in which X...
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5250161 |
Electrochemical 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...
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5245112 |
Method for decomposition of chlorofluorocarbons
The present invention provides a method for the decomposition of chlorofluorocarbons to hydrofluoric acid, hydrochloric acid and carbon dioxide by the chlorofluorocarbons' reaction with water at a...
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5245113 |
Decontamination of PCB contaminated solids
A method and apparatus for removal of PCBs or similar refractory organic substances from solid surfaces, such as soil or hardware, e.g., capacitors and transformers containing a charge or residue...
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