| Patents for A62D 101 - Harmful chemical substances made harmless, or less harmful, by effecting chemical change (5,283) |
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| 09/02/1992 | EP0501504A1 Process for treating chlorinated hydrocarbon containing smoke-generating bodies and smoke-generating compositions |
| 09/02/1992 | EP0500657A1 A method of removing heavy metals form soil, sludge, compost and similar materials |
| 09/01/1992 | US5143710 Methods for producing superoxide ion in situ |
| 08/27/1992 | DE4105562A1 Conversion of toxic halogenated organic cpds. from incinerator filter dust - comprises adding glycol to alkaline e.g. filter dust or absorption material and adding water-glass to agglomerate |
| 08/26/1992 | EP0499696A2 Process for the decontamination of surfaces and solid objects |
| 08/25/1992 | US5141629 Process for the dehalogenation of organic compounds |
| 08/19/1992 | EP0499363A1 Destruction process for photocatalytically degradable organic material |
| 08/19/1992 | EP0499362A1 Destruction process for photocatalytically degradable organic material |
| 08/10/1992 | CA2059952A1 Destruction process |
| 08/10/1992 | CA2059932A1 Destruction process |
| 08/06/1992 | WO1992013117A1 Electrochemical desensitization process |
| 08/06/1992 | DE4103311A1 Neutralising iron sulphate salts - by dissolving in water and adding calcium to form pumpable paste for backfilling |
| 08/05/1992 | CN1063232A Counter-current circulation sectional soaking extracted separation method of chromium dross comprehensive utilization |
| 08/04/1992 | US5134946 Neutralizer for toxic and nuclear waste |
| 07/29/1992 | CN1017610B Method for waste disposal involving oxidation of elemental phosphorus |
| 07/28/1992 | US5133877 Conversion of hazardous materials using supercritical water oxidation |
| 07/23/1992 | DE4101333A1 Reducing toxicity of alkaline soln. contg. halogenate and halide - by converting halogenate to halide, useful for epitaxial prodn. of semiconductors |
| 07/21/1992 | US5132006 Alkali Metal Alcoholate |
| 07/21/1992 | CA1305311C Apparatus for decontaminating pcb-contaminated dielectric fluids |
| 07/15/1992 | EP0494188A1 Oil treatment method. |
| 07/14/1992 | US5130032 Industrial toxic waste water, oxidation with ozone, sonic vibration |
| 07/14/1992 | US5130031 Method of treating aqueous liquids using light energy, ultrasonic energy, and a photocatalyst |
| 07/07/1992 | US5128002 Method for processing residual baths from the photographic and photochemical industries |
| 07/02/1992 | DE4042028A1 Plasma chemical disposal of problem substances using alkali metal - or alkaline earth metal or alloy to form solid reaction prod. converted to useful prod. |
| 06/25/1992 | WO1992010240A1 A method for chemical destruction of heavy metals in toxic waste |
| 06/24/1992 | EP0491452A1 Process for dehalogenation |
| 06/24/1992 | EP0490934A1 Method and apparatus for the controlled reduction of organic material |
| 06/24/1992 | EP0412107B1 Hazardous waste incinerator using cyclotron resonance plasma |
| 06/21/1992 | CA2056241A1 Process for converting hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can then be rendered nonhazardous |
| 06/17/1992 | DE4201547A1 Contaminated metal recycling - uses decontamination furnace with exhaust gas heating to decompose toxic matter |
| 06/17/1992 | DE4039962A1 Destroying substances contg. chlorine, esp. PCB - by high temp. combustion and absorption of prods. |
| 06/11/1992 | DE4039068A1 Processing filters contg. e.g. heavy metals - by submerging filter and mechanically or ultrasonically treating while contaminants are removed by suitable precipitating agent |
| 06/10/1992 | EP0489053A1 Process for destroying cyanuric fluoride in residues produced in its manufacture. |
| 06/09/1992 | US5120886 Decomposition of organic hydroperoxides |
| 06/02/1992 | US5118492 Process for the catalytic decomposition of chlorofluoro-alkanes |
| 06/02/1992 | US5118429 Ambient temperature destruction of PCB wastes |
| 06/02/1992 | CA1302084C Solid fuel composition from waste products |
| 05/27/1992 | EP0486568A1 Process and device for disintegrating spent ion exchange resins |
| 05/21/1992 | DE4036787A1 Safe, environmentally friendly destruction of explosives - pref. propellant powder, by hydrolytic cleavage followed by biological degradation in a clarifying plant |
| 05/20/1992 | EP0486410A1 Wet process treatment of spent pot-linings from Hall-Héroult electrolytic cells |
| 05/19/1992 | US5114623 Forming phosphoric acid |
| 05/17/1992 | CA2055135A1 Wet process of spent brasques from hall-heroult electrolytic tanks |
| 05/14/1992 | WO1992007627A1 Metal oximate polyethylene glycols chemical decontaminant system |
| 05/07/1992 | DE4035042A1 Working-up flue-ash obtd. from exhaust gas cleaning - by forming suspension with sulphuric acid and recovering calcium sulphate as filter cake |
| 05/05/1992 | US5110364 Processes for decontaminating polluted substrates |
| 05/02/1992 | WO1992007797A1 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 |
| 05/02/1992 | CA2069444A1 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 |
| 04/29/1992 | CN1016411B Treatment of cyanide precipitates |
| 04/28/1992 | US5108647 Method of dehalogenating halogenated hydrocarbons |
| 04/22/1992 | EP0481669A2 Monofluorophosphate solubility inhibitor for lead in potable water sources |
| 04/21/1992 | US5107061 Thermal decomposition, adsorption of hydrogen chloride on zeolites |
| 04/16/1992 | WO1992005838A1 Dichloromethane abatement |
| 04/16/1992 | WO1992005837A1 Dichloromethane abatement |
| 04/16/1992 | CA2053163A1 Monofluorophosphate solubility inhibitor for lead in potable water sources |
| 04/15/1992 | EP0480474A1 Method for removing polyclorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge |
| 04/13/1992 | CA2046118A1 Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge |
| 04/08/1992 | CN1016142B Chemical process for destroying halogenated organic products |
| 04/07/1992 | US5102510 Electrolytic removal of halogenated compounds in presence of electrolyte-organic solvent, soluble electroconductive salts and a soluble electron transfer compound |
| 03/25/1992 | CN1059668A Eliminating agent for chemical left over from vegetable |
| 03/24/1992 | US5098525 Process for disposing of residues deriving from the synthesis of chlorinated hydrocarbons |
| 03/24/1992 | US5097774 Method for burning halogenated hydrocarbon containing waste |
| 03/17/1992 | US5096600 Method for decontaminating soils |
| 03/11/1992 | EP0474093A1 Process for the decomposition of asbestos |
| 03/11/1992 | EP0474014A1 Process for electrochemical dehalogenation of organic contaminants |
| 03/10/1992 | CA1297063C Process for the hydrogenation treatment of mineral oils contaminated with chlorobiphenyls and the like |
| 03/05/1992 | DE4026876A1 Industrial dust disposal esp. for synthetic resin by combustion - in blast furnace after premixing dust with separate airstream, avoiding pollution |
| 03/03/1992 | US5093011 Detoxification of halogenated aromatics; pollution control |
| 03/03/1992 | US5092931 Chelation, High Molecular Weight Compound |
| 03/03/1992 | US5092930 Method for making insoluble heavy metals contained in fly ash discharged from incinerator |
| 03/03/1992 | CA1296744C Dehalogenation of halogenated aromatic compounds |
| 02/26/1992 | EP0471729A1 Corrin mediated degradation of organic nitrogen compounds. |
| 02/25/1992 | US5091079 Sludge treatment apparatus |
| 02/25/1992 | US5090340 Plasma disintegration for waste material |
| 02/25/1992 | CA1296190C Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor |
| 02/24/1992 | CA2049804A1 Process for electrochemical dehalogenation of organic contaminants |
| 02/20/1992 | DE4012397C1 Halogen hydride removal - by adding ammonia to pyrolysis gas in an agitated bed of pyrolysis reactor |
| 02/18/1992 | US5089241 Process for converting hexafluoroarsenic acid or any salt thereof to arsenic acid or salt thereof which can then be rendered nonhazardous |
| 02/18/1992 | CA1295962C Dehalogenation of halogenated compounds |
| 02/12/1992 | EP0470518A1 Device for carrying out photochemical reactions |
| 02/11/1992 | US5087374 Removal of contaminates from granular solids |
| 02/09/1992 | CA2048574A1 Device for carrying out photochemical reactions |
| 02/05/1992 | EP0469701A2 Process for the simultaneous treatment of two hazardous feedstocks |
| 02/04/1992 | US5085838 Conversion into environmentally safe material; heating with alkaline flux to change crystal structure |
| 01/29/1992 | EP0468073A1 Process for the complete valorisation of high molecular weight polymer waste |
| 01/25/1992 | WO1992001492A1 Forming carbon dioxide in multi-phase molten bath |
| 01/25/1992 | CA2087252A1 Forming carbon dioxide in multi-phase molten bath |
| 01/23/1992 | DE4022526A1 Dehalogenating of material contg. organo-halogen cpds. - by mixing with solid particles which contain sodium or potassium |
| 01/22/1992 | EP0467053A1 Process for the dehalogenation of organic compounds by alkali metals on solid supports |
| 01/22/1992 | EP0466877A1 Process for environmentally safe disposal of noxious solid, liquidand/or gaseous substances at temperatures of 400 to 1800 degrees celsius. |
| 01/18/1992 | CA2021378A1 Process for the catalytic decomposition of chlorofluoro-alkanes |
| 01/14/1992 | US5080804 Pollution control; disposal |
| 01/14/1992 | US5080799 Adsorbant is a metal or metal sulfide that forms amalgam or a sulfide with mercury |
| 01/14/1992 | CA1294111C Process for the destruction of organic waste material |
| 01/09/1992 | DE4121526A1 Ozone-decomposing compsn. for corona charging - contg. ozone-decomposing medium contg. terpenoid and gelating agent, and organic fluorine-contg. non-flammable material, for air purificn. |
| 01/08/1992 | EP0465388A1 Process for the treatment of spent potlinings from Hall-Heroult electrolytic cells by thermal shock |
| 01/07/1992 | CA1293857C Method of treating fluoride contaminated wastes |
| 12/31/1991 | US5077316 Protective coatings against chemical warfare |
| 12/31/1991 | US5076941 Monofluorophosphate solubility inhibitor for lead in potable water sources |
| 12/31/1991 | US5076938 Oil treatment method |
| 12/24/1991 | US5075297 Broad spectrum chemical decontaminant system |