| Patents for A62D 101 - Harmful chemical substances made harmless, or less harmful, by effecting chemical change (5,283) |
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| 10/28/1993 | WO1993021479A1 Plasma torch processing of spent aluminum smelter potliner |
| 10/28/1993 | WO1993021117A1 Process for decreasing chlorine content of chlorinated hydrocarbons |
| 10/28/1993 | WO1993020898A1 High temperature process and plant for treatment and resources recovery of hazardous waste |
| 10/28/1993 | CA2118247A1 Process for decreasing chlorine content of chlorinated hydrocarbons |
| 10/28/1993 | CA2118003A1 Plasma torch processing of spent aluminum smelter potliner |
| 10/26/1993 | US5256854 Tunable plasma method and apparatus using radio frequency heating and electron beam irradiation |
| 10/19/1993 | US5254796 Oxidation process |
| 10/19/1993 | US5254231 Method and apparatus for chemically altering fluids in continuous flow |
| 10/17/1993 | CA2094091A1 In-situ restoration of contaminated soils and groundwater using calcium chloride |
| 10/14/1993 | WO1993020593A1 Process for recycling solids, powders and sludges contaminated with mercury |
| 10/14/1993 | WO1993019836A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | WO1993019812A1 Treatment of liquids |
| 10/14/1993 | CA2133551A1 Treatment of liquids |
| 10/14/1993 | CA2110400A1 Process for recycling solids, powders and sludges contaminated with mercury |
| 10/13/1993 | EP0564964A1 Process for the destruction of toxicants produced during the elimination of organic waste |
| 10/12/1993 | US5252307 Method of processing chlorosilane distillation residues with steam |
| 10/12/1993 | US5252190 Method for removing a harmful substance selected from the group consisting of ethylene, mercaptans, amines, and aldehydes |
| 10/07/1993 | CA2093388A1 Process for destroying toxic substances occuring during the elimination of organic refuse components |
| 10/06/1993 | EP0563669A1 A method of treatment of a fluid containing volatile organic halogenated compounds |
| 10/06/1993 | EP0507939B1 Method of treating aqueous liquids to decompose halogenated organic compounds using a combination of light energy and ultrasonic energy in the presence of a photocatalyst |
| 10/05/1993 | US5250161 Placing nitro-, nitramine- or nitrato-group-bearing compounds in electrolytic cell; decomposing binder by oxidation at anode; reducing energetic compounds at cathode |
| 09/30/1993 | WO1993019011A1 A method of treating liquid effluents containing organic compounds |
| 09/30/1993 | WO1993018867A1 Process for disposal of asbestos or substances containing it |
| 09/30/1993 | DE4308490A1 Verfahren und Vorrichtung zur Zerstörung von Schadstoffen Method and apparatus for the destruction of pollutants |
| 09/30/1993 | DE4227568A1 Reclamation of chromium@, PCB and plastics from discarded computers - by direct and indirect heating in a blast furnace with removal and, if necessary destruction of components at different temps. |
| 09/30/1993 | CA2132204A1 Process for disposal of asbestos or substances containing it |
| 09/28/1993 | US5248395 Water treatment to remove metals and organics |
| 09/26/1993 | CA2091740A1 A method of treatment of a fluid containing volatile organic halogenated compounds |
| 09/21/1993 | US5246682 Process for waste liquid-free processing of chlorosilane distillation residues with hydrochloric acid |
| 09/16/1993 | WO1993017759A1 Material processing |
| 09/16/1993 | DE4207943A1 Sec. aluminium@ smelter and refiner residue and filter dust detoxification - to remove poly:halogenated organic cpds. with recovery of aluminium cpds. by lixiviation and hydrothermal or thermal treatment with alkali |
| 09/14/1993 | US5245121 Reduced leaching of heavy metals from incinerator ashes |
| 09/14/1993 | US5245120 Process for treating metal-contaminated materials |
| 09/14/1993 | US5245116 Process for the wet treatment of spent pot linings from hall-heroult electrolytic cells |
| 09/14/1993 | US5245115 Waste treatment, decomposition of cyanides, insolubilization of fluorides |
| 09/14/1993 | US5245114 Immobilization of lead in bottom ash |
| 09/14/1993 | US5245113 Decontamination of PCB contaminated solids |
| 09/08/1993 | EP0559051A1 Recycling of acetylen gas cylinders containing asbestos |
| 09/08/1993 | EP0559050A1 Decontamination of asbestos-contaminated heat storage bricks |
| 09/07/1993 | CA1321950C Metal oximate/polyethylene glycols chemical decontaminant system |
| 09/07/1993 | CA1321949C Metal phenoxide/polyethylene glycols chemical decontaminant system |
| 09/07/1993 | CA1321948C Broad spectrum chemical decontaminant system |
| 09/04/1993 | CA2090888A1 Process for recycling asbestos-containing acetylene gas cylinders |
| 09/02/1993 | WO1993017295A1 A method of destroying explosive substances |
| 09/02/1993 | DE4216239C1 Calcium hypochlorite decomposition with hydrogen peroxide - by treatment in aq. suspension, neutralisation and sepn. into solid suitable for disposal and waste liquor without environmental pollution |
| 09/02/1993 | CA2129980A1 A method of destroying explosive substances |
| 09/01/1993 | EP0558063A2 Process for thermal decomposition of dioxins at low temperature |
| 09/01/1993 | EP0557915A1 Process for the disposal of radioactivity contaminated asbestos |
| 08/31/1993 | US5239936 Low-temperature ashing of hazardous plastic waste |
| 08/26/1993 | DE4221344C1 Safe disposal of pyrotechnic material without environmental pollution - by controlled combustion of materials giving alkaline and acid reaction prods., cooling combined gas and purificn. |
| 08/26/1993 | DE4205261A1 Decontaminating installations contg. asbestos and material which is not hazardous - also involves conversion of asbestos into unharmful and reusable material, with sluice installed in dismantling room |
| 08/25/1993 | EP0556385A1 Process for fixing lead-contaminated ecologically hazardous industrial waste materials using clinoptilolite zeolite |
| 08/19/1993 | WO1993016572A1 Method and means for changing characteristics of substances |
| 08/18/1993 | EP0555208A1 Metal oximate polyethylene glycols chemical decontaminant system. |
| 08/12/1993 | DE4203665A1 Poly:halogenated dibenzo:dioxin and dibenzofuran cpds. removal from solids - with prods. obtd. in powder or granule from by extn. with inert organic solvent and dehalogenation and redn. with alkali metal |
| 08/10/1993 | US5234669 Mixing smelter by-product with hydrated lime to form paste, forming paste into agglomerates, roasting in air, oxidizing, treating with basic aqueous lixiviant solution |
| 08/10/1993 | US5234504 Methods for removing contaminants from contaminated solids (II) |
| 08/10/1993 | US5234498 Process for fixing lead-contaminated ecologically hazardous industrial waste materials using clinoptilolite zeolite |
| 08/10/1993 | US5234485 Method of immobilizing contaminants in the soil or in materials similar to the soil |
| 08/05/1993 | WO1993014821A1 Method and apparatus for the controlled reduction of organic material |
| 08/05/1993 | CA2129135A1 Method and apparatus for the controlled reduction of organic material |
| 08/04/1993 | EP0553776A2 Method of converting the chemical structure of compounds containing chlorine and fluorine |
| 08/04/1993 | EP0553511A1 Method for the disposal of fluor- and cyanide containing residues |
| 08/04/1993 | EP0528982A4 Catalysts for the destruction of halogenated organics |
| 08/03/1993 | US5232484 Aqueous acid solution; mineralization; absence of large concentrations of organic solvents, chloride and sulfate |
| 07/29/1993 | DE4200790A1 Catalyst for hydrogenating halo-hydrocarbon cpds. to hydrocarbon - has hydrogen halide resistant support comprising iron@-nickel@-chromium@ alloy coated with titanium di:oxide |
| 07/29/1993 | DE4135368A1 Incinerator filter dust - is sieved to give a coarse fraction with low neutral salts and heavy metal cpd. content to reduce vol. for special disposal |
| 07/25/1993 | CA2084710A1 Process for the disposal of residual materials which contain fluorine- and cyanide-containing compounds |
| 07/22/1993 | WO1993014244A1 Oxidation of organic materials by electrified microheterogeneous catalysis |
| 07/22/1993 | WO1993014243A1 Decomposition of halogenated and polyhalogenated organic materials by electrified microheterogeneous catalysis |
| 07/22/1993 | WO1993013831A1 Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
| 07/22/1993 | WO1993013830A1 Process and plant for the treatment of industrial synthesized gypsum residues |
| 07/22/1993 | CA2128013A1 Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
| 07/20/1993 | US5228921 Methods for removing contaminants from contaminated solids (I) |
| 07/14/1993 | EP0551057A1 Process and apparatus for the continuous melting of wastes |
| 07/14/1993 | EP0551056A1 Process and apparatus for the continuous melting of wastes |
| 07/13/1993 | US5226545 Extraction of mercury and mercury compounds from contaminated material and solutions |
| 07/08/1993 | WO1993012842A1 Process for treating metal-contaminated materials |
| 07/07/1993 | EP0550136A1 Method for treatment of potlining residue from primary aluminium smelters |
| 07/07/1993 | EP0549932A1 Ecologically sound disposable product containing waste, usable as building material |
| 07/07/1993 | EP0523038A4 Degradation of polychlorinated biphenyls |
| 07/06/1993 | US5224432 Method for retorting organic matter |
| 06/30/1993 | EP0549284A1 Process for treating halogenated hydrocarbon |
| 06/29/1993 | US5222448 Plasma torch furnace processing of spent potliner from aluminum smelters |
| 06/24/1993 | DE4141889A1 Heavy metal removal from solid waste e.g. power station fly ash - by forming an aq. slurry of the material, adding chitosan or tannin as chelating agent, standing and sepg. the solid from the heavy metal-contg. soln. etc. |
| 06/21/1993 | CA2085769A1 Ecologically harmless raw materials produced from liquid and solid waste useful as valuable material for building and construction products |
| 06/17/1993 | DE4141485A1 Gas and oil Drilling fluids processing and disposal - by addn. of inorganic and/or organic conditioning agent esp. aluminium or iron and the sepn. of fluid into solid and fluid phases, reducing costs etc. |
| 06/16/1993 | EP0546984A1 Semi-continuous decomposition of asbestos |
| 06/15/1993 | US5220112 Fixation of heavy metals in municipal solid waste incinerator ash |
| 06/15/1993 | US5220111 Fixation of heavy metals in scrubbed municipal solid waste incinerator ash |
| 06/15/1993 | US5220109 Destruction of halogenated organic species |
| 06/15/1993 | US5220108 Amorphous alloy catalysts for decomposition of flons |
| 06/10/1993 | WO1993010862A1 Treatment of waste |
| 06/09/1993 | EP0545851A1 Decontamination of asbestos-contaminated materials |
| 06/09/1993 | EP0545850A1 Use of asbestos decomposition wastes as aggregates for building materials |
| 06/09/1993 | EP0545509A1 Catalyst, use of the same and process for hydrodehalogenation of organic halogenated compounds |
| 06/02/1993 | EP0544480A1 Microwave and radio frequency sensitised oxidation |
| 05/27/1993 | WO1993009849A1 Immobilisation of metal contaminants from a liquid to a solid medium |
| 05/27/1993 | CA2123309A1 Immobilisation of metal contaminants from a liquid to a solid medium |
| 05/27/1993 | CA2056244A1 Method for physico-chemical and electro-chemical enhancement of chemical oxidation of material suspended or dissolved in a liquid medium |