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| Number | Title | Issue Date |
| 4465590 | Process for eliminating polychlorinated bi-phenyls from oils A process for eliminating by destruction polychlorinated bi-phenyls from hydrocarbonaceous oil contaminated therewith is disclosed. The oil is admixed with liquid sodium in an atmosphere of argon gas and allowed by refluxing, mixing, agitation, and hydrog... | 08/14/1984 |
| 4464351 | Process for the thermal destruction of solid metable halogenated waste with resultant production of hydrogen halide therefrom A process for the thermal destruction of heavy halogenated wastes in a hydrogen/oxygen flame which process comprises passing a mixture of heavy halogenated wastes in the vapor phase and a carrier gas of hydrogen or hydrogen-rich hydrocarbon through burnin... | 08/07/1984 |
| 4463691 | Method and apparatus for treating polychlorinated biphenyl contaminated sludge A method and apparatus for treating polychlorinated biphenyl contaminated sludge involves heating the sludge, using hot turbulent gas at a temperature in the range of 850° to 2,500° F. with a sludge residence time of about 0.5 to 2 seconds, to separate ... | 08/07/1984 |
| 4447262 | Destruction of halogen-containing materials An organic waste containing halogen is destroyed by treatment in a molten salt pool comprising a mixture of a basic alkaline earth metal compound with an alkaline earth metal halide. An oxygen-containing gas is introduced into the pool containing the wast... | 05/08/1984 |
| 4447667 | Process for the dehalogenation of organic compounds There is disclosed an improved process for the destruction of halogenated organic compounds through treatment with an alkali metal aromatic radical anion reagent wherein the improvement comprises the elimination of the water quench step.... | 05/08/1984 |
| 4443309 | Process for the detoxification of chemical waste materials A process for the detoxification of chemical waste materials comprising toxic organic compounds in which the waste materials are subjected to electrolytical treatment by contacting them with one or more electrodes, which are part of an electric circuit, i... | 04/17/1984 |
| 4423024 | Selective conversion of chlorinated alkanes to hydrogen chloride and carbon dioxide A method of converting saturated aliphatic chlorinated hydrocarbons to carbon dioxide and hydrogen chloride which comprises contacting a pre-heated mixture of the hydrocarbon, oxygen and, where necessary, water with a molecular sieve catalyst at temperatu... | 12/27/1983 |
| 4422940 | Method of neutralizing and detoxifying wastes containing organic compounds A method of neutralizing and detoxifying waste material containing both an acid and a toxic organic compound. The waste material is combined with sufficient oil and sufficient caustic to form a pumpable slurry having a pH of 7 or higher. The oil is then s... | 12/27/1983 |
| 4417977 | Removal of PCBS and other halogenated organic compounds from organic fluids Organic functional fluids containing halogenated organic compounds present as contaminants therein are treated with a NaPEG decomposition reagent in an inert atmosphere to produce a functional fluid phase substantially free of the halogenated organic comp... | 11/29/1983 |
| 4410402 | Degradation of halogenated carbon compounds Halogenated carbon compounds containing at least three halogen atoms and capable of undergoing bimolecular nucleophilic substitution are degraded by reaction in an aprotic solvent with a strong nucleophile selected from superoxide ion and hydroxide ion. T... | 10/18/1983 |
| 4400552 | Method for decomposition of halogenated organic compounds A reagent comprising the product of the reaction of an alkali metal hydroxide with a polyglycol or a polyglycol monoalkyl ether and oxygen, effects complete decomposition of halogenated organic compounds, such as polychlorinated biphenyls (PCBs), when mix... | 08/23/1983 |
| 4400566 | Reduction of organic halides Organic halides are reduced to a dechlorinated products with a catalyst mixture consisting essentially of a nickel compound, a triarylphosphine and a halide ion, in the presence of reducing means for maintaining nickel in the zero valent state.... | 08/23/1983 |
| 4379752 | Method for destruction of polyhalogenated biphenyls A continuous method for destroying polyhalogenated biphenyls by reacting a solution of the biphenyls in an inert liquid at a concentration of from about 1% to about 5% by weight with a dispersion of sodium in a hydrocarbon oil.... | 04/12/1983 |
| 4353793 | Method for removing polyhalogenated hydrocarbons from nonpolar organic solvent solutions A method is provided for reducing the level of polychlorinated aromatic hydrocarbons, "PCB's", while dissolved in an organic solvent, for example, transformer oil. Removal of the polychlorinated aromatic hydrocarbon, can be accomplished by treating the co... | 10/12/1982 |
| 4337368 | Reagent and method for decomposing halogenated organic compounds A reagent, comprising the product of the reaction of an alkali metal with a polyglycol or a polyglycol monoalkyl ether and oxygen, effects complete decomposition of halogenated organic compounds, such as polychlorinated biphenyls (PCBs), when mixed therew... | 06/29/1982 |
| 4327027 | Chemical detoxification of toxic chlorinated aromatic compounds A method for the reduction of the content of toxic chlorinated aromatic compounds such as chlorinated aromatic dioxins and especially chlorinated dibenzo-p-dioxins in reaction products to virtually zero consisting essentially of reacting a mass containing... | 04/27/1982 |
| 4326090 | Destruction of PCB's Polychlorinated biphenyls (PCB's) are dechlorinated and rendered environmentally harmless by reaction with preformed sodium naphthalenide in a suitable ether-type solvent. The reaction proceeds rapidly at ambient temperature and effects substantially comp... | 04/20/1982 |
| 4317800 | Process for simultaneously processing of used metal and/or metal _scrap and scrap containing halogenated hydrocarbons A process for reducing environmental pollution resulting from disposal of waste containing halogenated hydrocarbons by simultaneous treatment with used metal and/or metal scrap at elevated temperatures. The halogenated hydrocarbons are pyrolyzed and the r... | 03/02/1982 |
| 4246255 | Disposal of PCB A process for the decomposition of polychlorinated biphenyls (PCB's) with negligible environmental pollution. The process comprises feeding the PCB and a source of oxygen to a molten salt comprising an alkali metal carbonate and preferably also an alkali ... | 01/20/1981 |
| 4246104 | Pressure-hydrolytic treatment of effluent A process for the chemical treatment of an effluent containing at least one organic compound selected from the group consisting of an organometallic compound and an organic compound containing at least one of phosphorus, nitrogen and halogen, comprising t... | 01/20/1981 |
| 4215095 | Process for the incineration of chlorinated organic materials Molecular chlorine level in flue gases from incineration of chlorinated organic materials is reduced by injecting into the incinerator's quench zone an amount of a C1 -C4 hydrocarbon which depends on the amount of air fed into the co... | 07/29/1980 |
| 4189329 | Halogen-containing plastic refuse treatment The method of treating halogen-containing plastic refuse which comprises charging same to a bath for immersion therein, the bath being constituted of an inorganic carbonate, such as from the class consisting of alkali and alkaline earth metals; such bath ... | 02/19/1980 |
| 4144162 | Method for the containment of oils and oil sludges A method for the solidification and containment of sludge from an oil reclaiming process to permit environmentally safe storage disposal of the sludge and particularly electric transformer oil containing PCB's. In the process, the sludge or oil is mixed w... | 03/13/1979 |
| 4144152 | Dehalogenation of halogenated compounds Process for degrading halogenated organic compound having C-halogen groups to remove halogen atoms from said compound by treating it with ultraviolet (UV) radiation and hydrogen. Process for degrading such compound by treating it in aqueous alkaline solut... | 03/13/1979 |
| 4138269 | Conversion of viscous, reactive chlorine- and sulfur-containing production residues into solid products which can be dumped A process for converting viscous reactive chlorine- and sulfur-containing production residues into solid products which can be dumped, wherein the said residues are treated with alkaline materials. In a preferred embodiment of the invention, chlorine-cont... | 02/06/1979 |
| 4100255 | Combustion of refuse containing chlorinated hydrocarbons Chlorinated hydrocarbons are separated from refuse, typically municipal refuse, and combusted in a separate combustion chamber within an incinerating furnace, the special combustion chamber being separated spatially, and the material containing the chlori... | 07/11/1978 |
| 4059675 | Decomposition of halogenated organic compounds A method for decomposing halogenated organic compounds which comprises: (a) preheating the halogenated organic compound to a temperature above about 300° C. and (b) contacting the preheated organic compound with a catalytic amount of ruthenium in the pre... | 11/22/1977 |
| 3977966 | Purification of non-biodegradable industrial wastewaters A process of treating non-biodegradable industrial wastes by wet oxidation, followed by biological oxidation of the liquid phase by aeration in the presence of biomass and powdered activated carbon, and wet oxidation of the spent carbon and excess biomass... | 08/31/1976 |
| 3941066 | Method for disposal of waste synthetic high polymer Waste synthetic high polymer, especially those containing polyvinyl chloride and the like chlorine-containing synthetic resins are heated at 200°-500°C to thereby form a hot molten bath of fusible materials contained in the waste resin mixture and the c... | 03/02/1976 |
