| Patents for A62D 101 - Harmful chemical substances made harmless, or less harmful, by effecting chemical change (5,283) |
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| 12/24/1991 | US5075273 Catalyst for destruction of hazardous chorinated wastes and process for preparing the catalyst |
| 12/24/1991 | US5075017 Supercritical water oxidation under pressure yields ash, carbon dioxide |
| 12/24/1991 | US5074890 Oxidation to carbon monooxide and hydrogen |
| 12/19/1991 | DE4016899A1 Verfahren zur behandlung von schadstoffbeladenen festkoerperpartikeln Process for the treatment of pollutant-laden festkoerperpartikeln |
| 12/18/1991 | CN1057010A System and process for conversion of harmful matter to inert solid matrix |
| 12/12/1991 | WO1991018671A1 Process for processing solid particles containing toxic chemicals |
| 12/12/1991 | DE4018568A1 Building material for underground use - mfd. from titanium- and zinc-extraction residues, filter ash, calcium chloride from waste incineration etc. and binder e.g. cement |
| 12/10/1991 | US5071877 Metal oximate/polyethylene glycols chemicals decontaminant system |
| 11/28/1991 | DE4016514A1 Destruction of organic substances - esp. aromatic and/or halogenated cpds. in liq. or gases by irradiation with UV |
| 11/26/1991 | US5068484 Process for the hydroconversion of a feedstock comprising organic compounds having a tendency to readily form polymer compounds |
| 11/26/1991 | US5067978 Method for the removal of lead from waste products |
| 11/21/1991 | EP0456879A1 Process for the dehalogenation of organic compounds |
| 11/19/1991 | US5066472 Hydrolysis with water vapor, recovering hydrochloric acid |
| 11/15/1991 | WO1991017828A1 Catalysts for the destruction of halogenated organics |
| 11/14/1991 | WO1991017229A1 Method for the base-catalyzed decomposition of halogenated and non-halogenated organic compounds in a contaminated medium |
| 11/14/1991 | DE4114494A1 Auto catalytic conversion of liq. wastes contg. metals - useful for decontamination of wastes from electrolytic processes ion exchange regeneration etc. avoiding electrodeposition |
| 11/14/1991 | DE4014517A1 Disposal of dangerous gas - by opening bottles containing the gas in vacuum chamber |
| 11/13/1991 | EP0456457A1 Process for dehalogenation |
| 11/12/1991 | US5064526 Method for the base-catalyzed decomposition of halogenated and non-halogenated organic compounds in a contaminated medium |
| 11/07/1991 | DE4014023A1 Decontamination of substance contg. cyanide, esp. waste water - by treatment with acid, and stripping and destruction of hydrogen cyanide formed |
| 11/05/1991 | US5063030 Oxidation |
| 10/31/1991 | DE4013340A1 Breaking down polyhalogenated hydrocarbon cpds. - contg. adsorbed mercury, by heating in absence of oxygen to desorb mercury and breakdown halo-cpds. |
| 10/31/1991 | CA2041452A1 Method for decontaminating soils |
| 10/30/1991 | EP0453904A1 Method for disposing of run-down batteries and other waste products made toxic by the presence of heavy metals therein |
| 10/29/1991 | CA1291582C Disposal of material containing vanadium as landfill |
| 10/28/1991 | CA2041307A1 Method for disposing of run-down batteries and other waste products made toxic by the presence of heavy metals therein |
| 10/17/1991 | WO1991015558A1 Degradation of polychlorinated biphenyls |
| 10/10/1991 | DE4019982A1 Treating heavy metal-contg. industrial waste - with sodium poly:thio:carbonate soln. to remove heavy metal content |
| 10/09/1991 | EP0451006A1 Process for incinerating waste |
| 10/08/1991 | US5055167 Method for the complete utilization of high polymer waste products |
| 10/07/1991 | WO1991015444A1 Removal of organochlorides |
| 10/02/1991 | EP0448660A1 Conversion of organic/organometallic gaseous or vaporizable compounds into inert solids |
| 09/26/1991 | DE4009447A1 Processing waste salts, dusts and sludges - to give dust-like product suitable for dumping |
| 09/25/1991 | EP0447530A1 Treatment of hazardous waste material. |
| 09/25/1991 | EP0420975A4 Degradation of polychlorinated biphenyls |
| 09/24/1991 | US5051030 Chemical detoxification process for treatment of soils contaminated with halogenated organic compounds |
| 09/24/1991 | US5050511 Reduction of organic waste,transferring and cooling, condensation followed by recycling |
| 09/24/1991 | CA1289334C Process for destroying organic products with toxic effects and equipment for implementing this process |
| 09/19/1991 | WO1991013701A1 Spent pot liner treatment process |
| 09/19/1991 | WO1991009650A3 Process and device for disposing of substances containing halogenated hydrocarbon compounds |
| 09/10/1991 | WO1991013667A1 Sludge treatment process |
| 09/10/1991 | CA1288579C Destruction of organic hazardous waste |
| 09/05/1991 | WO1991013532A1 Plasmatron with steam as the plasma gas and process for stable operation of the plasmatron |
| 09/03/1991 | CA1288441C Process for the chemicothermal decomposition of halohydrocarbons |
| 09/03/1991 | CA1288381C Method and apparatus for the controlled reduction of organic material |
| 08/27/1991 | US5043496 Process for the treatment of heavy chlorination residues |
| 08/27/1991 | US5043054 Mixture of 1A, 2A, 3A hydroxides and 2-methoxyethanol |
| 08/22/1991 | WO1991012052A1 Process for environmentally safe disposal of noxious solid, liquidand/or gaseous substances at temperatures of 400 to 1800 degrees |
| 08/22/1991 | DE4005002A1 Processing contaminated metal scrap - esp. transformers contg. PCB coolants |
| 08/21/1991 | EP0442088A1 Process for the oxidation of water insoluble organic compounds |
| 08/20/1991 | US5041277 Method for treating asbestos |
| 08/13/1991 | US5039350 Method for the decomposition of halogenated organic compounds in a contaminated medium |
| 08/06/1991 | US5037560 Sludge treatment process |
| 08/06/1991 | US5037479 Treating cadmium and lead with reactive carbonates, phosphates and borates to convert to nonleachable form |
| 07/31/1991 | EP0398889A4 Degradation of organochlorines |
| 07/30/1991 | US5035809 Controlling water pollution |
| 07/30/1991 | US5035784 Decomposition of polychlorinated biphenyls, irradiation with ultraviolet radiation |
| 07/25/1991 | WO1991010478A1 Waste treatment |
| 07/25/1991 | DE4001782A1 Oxidn. of chlorinated organic pollutants - by reaction with nitric acid at high temp. and pressure |
| 07/25/1991 | DE4001230A1 Leach-resistant binding of finely divided inorganic waste - by reaction with reactive silicic acid |
| 07/16/1991 | US5032291 Catalytic reduction of nitro- and nitroso- substituted compounds |
| 07/16/1991 | US5032241 Fluid purification |
| 07/16/1991 | CA1286087C Process for cleaning of waste materials by refining and/or elimination of biologically difficult to degrade halogen-, nitrogen- and/or sulfur compounds |
| 07/11/1991 | WO1991009823A1 Photocatalytic process for degradation of organic materials in a vaporized or gaseous state |
| 07/11/1991 | WO1991009808A1 Reactive compositions containing superoxide ion for the degradation of halogenated organic compounds |
| 07/11/1991 | WO1991009650A2 Process and device for disposing of substances containing halogenated hydrocarbon compounds |
| 07/03/1991 | EP0435210A2 Method for the preparation of methyl chloride |
| 07/02/1991 | US5028452 Closed loop system and process for conversion of gaseous or vaporizable organic and/or organo-metallic compounds to inert solid matrix resistant to solvent extraction |
| 06/27/1991 | WO1991008986A1 Method of disposal and degradation of toxic organic compounds |
| 06/27/1991 | WO1991008813A1 System for and method of decontaminating a contaminated fluid by using photocatalytic particles |
| 06/27/1991 | DE3942962A1 Verfahren zum entsorgen von substanzen, die halogenierte kohlenwasserstoffverbindungen oder gemische davon enthalten, und vorrichtung zur durchfuehrung des verfahrens A method for disposing of substances that contain halogenated hydrocarbon compounds or mixtures thereof, and apparatus for performing the method |
| 06/26/1991 | EP0433600A2 Method for waste water free working up of residues from a chlorosilane distillation with calcium bases or calcium carbonate |
| 06/26/1991 | CN1052440A Treatment of hazardous waste material |
| 06/25/1991 | US5026484 Continuous flow method for processing liquids using high-energy discharge |
| 06/25/1991 | US5026464 Method and apparatus for decomposing halogenated organic compound |
| 06/23/1991 | CA2032902A1 Reactive compositions containing superoxide ion for the degradation of halogenated organic compounds |
| 06/20/1991 | DE3941827A1 Chloro-silane distn. residue conversion to solid suitable for dumping - by treatment with excess calcium base and sepn., liquor being recycled |
| 06/20/1991 | DE3940903A1 Toxic waste esp. halogenated organic and heavy metal disposal - by fixing with synthetic calcium hydro-silicate and opt. calcium aluminosilicate |
| 06/19/1991 | EP0432323A1 Simultaneous Hydrodehalogenation of two streams containing halogenated organic compounds |
| 06/13/1991 | WO1991008023A1 A method for the destruction of halogen-containing substances |
| 06/13/1991 | DE3940567A1 Treating gasifying toxic materials in heated fluidised beds - before further action on potentially dangerous solid residues |
| 06/11/1991 | US5023317 Sulfurizaton in oxygen-free atmosphere;pyropolymers |
| 06/06/1991 | WO1991008038A1 Method and apparatus for effecting gas-liquid contact |
| 06/04/1991 | US5021383 Metals or metal oxides impregnated in alkali or alkaline earth carbonates and bicarbonates |
| 05/28/1991 | US5019175 Polyethylene Glycol, Alkali Metal Hydroxide |
| 05/22/1991 | EP0428309A2 Waste treatment |
| 05/16/1991 | WO1991006343A1 A method of removing heavy metals form soil, sludge, compost and similar materials |
| 05/16/1991 | DE3937312A1 Solvent-resistant product for use in dam construction - made by mixing waste prodn. from some chemical processes |
| 05/14/1991 | US5015457 Process for the hydrogenation of organochlorine compounds, neutralization of the hydrochloric acid obtained and a neutralization agent for hydrochloric acid obtained from organochlorine compounds |
| 05/08/1991 | EP0426216A1 Method for processing residual baths from the photographic and photochemical industries |
| 05/08/1991 | DE3936744A1 Catalytic oxidative decomposition of halogenated organic cpds. - by passing cpd. mixed with oxygen and gas which burns in oxygen through fluidised bed of catalyst |
| 05/07/1991 | US5013424 Process for the simultaneous hydrogenation of a first feedstock comprising hydrocarbonaceous compounds and having a non-distillable component and a second feedstock comprising halogenated organic compounds |
| 05/02/1991 | EP0424865A2 Removal of dioxins and furans |
| 04/18/1991 | WO1991005026A1 Oil treatment method |
| 04/18/1991 | DE3933809A1 Verfahren zur entsorgung von abfallstoffen A method for disposal of waste materials |
| 04/11/1991 | WO1991005834A1 Waste disposal process |
| 04/11/1991 | WO1991005586A1 Treatment of hazardous waste material |
| 04/11/1991 | CA2067147A1 Waste disposal process |
| 04/11/1991 | CA2042599A1 Treatment of hazardous waste material |
| 04/10/1991 | EP0420975A1 Degradation of polychlorinated biphenyls |