| Patents for A62D 3 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances (9,310) |
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| 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 |
| 08/06/1992 | DE4102831A1 Treatment of buildings emitting formaldehyde to render them safe - using soln. contg. urea] formaldehyde] condensate with low formaldehyde content, sealing cracks, joints and openings and aerating |
| 08/05/1992 | EP0497749A1 A method of successively decreasing the mercury concentration in controlled waste depositions |
| 08/05/1992 | EP0496788A1 Minimization of environmental wastes |
| 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 | US5133991 Method for applying a biodegradable protein foam to a substrate |
| 07/28/1992 | US5133877 Conversion of hazardous materials using supercritical water oxidation |
| 07/24/1992 | WO1992013087A1 Method of decomposing polyamide |
| 07/23/1992 | DE4101333A1 Reducing toxicity of alkaline soln. contg. halogenate and halide - by converting halogenate to halide, useful for epitaxial prodn. of semiconductors |
| 07/23/1992 | DE4100758A1 Removal of pollutants from substrates e.g. soil - by cultivating on the substrate, plants which are capable of taking=up and storing the pollutants, esp. heavy metals, then sepg. the pollutants from the harvested plants |
| 07/21/1992 | US5132474 Method of recovering hydrocarbon halide |
| 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 |
| 07/12/1992 | WO1992012268A1 Recovery of aluminium and fluoride values from spent pot lining |
| 07/12/1992 | CA2097809A1 Recovery of aluminium and fluoride values from spent pot lining |
| 07/08/1992 | EP0493688A2 Process and culture medium for elemination of nitrates from inorganic building materials or from loose material |
| 07/07/1992 | US5128262 Biosurfactant |
| 07/07/1992 | US5128068 Washing, size separation, attrition abrasion, dewatering; soils |
| 07/07/1992 | US5128002 Method for processing residual baths from the photographic and photochemical industries |
| 07/07/1992 | US5127963 Milling ebonite, leaching with nitric acid, washing; batteries; rubber recycling |
| 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 | EP0491615A1 Process for the vitrification of wastes and apparatus for carrying out this process |
| 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 |
| 06/23/1992 | US5124363 Hazardous waste treatment |
| 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. |
| 06/16/1992 | US5122194 Methods and compositions for removing polychlorinated biphenyls from a contaminated surface |
| 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 |
| 06/09/1992 | US5120369 Hazardous material removal using strippable coatings |
| 06/03/1992 | EP0487842A2 Method and device for the treatment of contaminated soils and waters |
| 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 |
| 05/21/1992 | DE4035358A1 Disposal of asbestos containing material - is removed from its supporting substrate by high pressure water jets and put in receptacle, together with water and heated furnace for converting into harmless form |
| 05/20/1992 | EP0486410A1 Wet process treatment of spent pot-linings from Hall-Héroult electrolytic cells |
| 05/20/1992 | EP0485550A1 Process for processing loaded residues from titanium oxide extraction |
| 05/19/1992 | US5114692 Catalytic destruction of toxic organic chemicals |
| 05/19/1992 | US5114623 Forming phosphoric acid |
| 05/19/1992 | US5114564 Oxidation of sludge and organic compounds |
| 05/17/1992 | CA2055135A1 Wet process of spent brasques from hall-heroult electrolytic tanks |
| 05/14/1992 | WO1992007917A1 Reversible transformation of hydrocarbons |
| 05/14/1992 | WO1992007627A1 Metal oximate polyethylene glycols chemical decontaminant system |
| 05/13/1992 | EP0484866A2 Method and device for safe and pollution-free disposal of asbestos-containing material |
| 05/13/1992 | CN1016586B Insitu hazardous waste treating apparatus and method of using same |
| 05/12/1992 | US5112486 Machine element for use in liquid treating 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 |
| 05/07/1992 | DE4034447A1 Hazardous waste converter - has air tight connection between lock chamber and redn. and mixer stages to bond and render it harmless |
| 05/05/1992 | US5110495 Organic peroxide dispersions |
| 05/05/1992 | US5110364 Processes for decontaminating polluted substrates |
| 05/03/1992 | CA2094044A1 Reversible transformation of hydrocarbons |
| 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 |
| 04/30/1992 | DE4137302A1 Biologically activated body prepn. by treating flowing glass body - with aq. culture solns. of microorganisms and freeze drying, used in treating contaminated soil |
| 04/29/1992 | CN1016411B Treatment of cyanide precipitates |
| 04/28/1992 | US5108647 Method of dehalogenating halogenated hydrocarbons |
| 04/28/1992 | US5108621 Method of neutralizing hazardous products |
| 04/22/1992 | EP0481963A2 Microorganisms for degrading toxic waste materials |
| 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 |
| 04/21/1992 | CA1299055C Method of providing a barrier between a substrate and the atmosphere andcomposition therefor |
| 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 | EP0480476A1 Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans and stickies from secondary fibers |
| 04/15/1992 | EP0480474A1 Method for removing polyclorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge |
| 04/15/1992 | EP0479894A1 Mineralogical conversion of asbestos waste. |
| 04/14/1992 | CA1298798C Microorganisms for degrading toxic waste materials |
| 04/13/1992 | CA2046118A1 Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans from paper mill sludge |
| 04/13/1992 | CA2044323A1 Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans and stickies from secondary fibers |
| 04/09/1992 | DE4129415A1 Treating contaminated soils and waters - by forming floating contaminant-contg. foam layers |
| 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 |
| 04/02/1992 | WO1992004942A1 High-stability foams for long-term suppression of hydrocarbon vapors |
| 03/31/1992 | US5100800 Microorganism for degrading toxic waste materials |
| 03/31/1992 | US5100477 Decontamination of toxic chemical agents |
| 03/25/1992 | EP0476469A2 Method for applying a biodegradable protein foam to a substrate |
| 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 | US5096692 Mineralogical conversion of asbestos waste |
| 03/17/1992 | US5096679 Fluid effect devices for diffusion, dilution, diversion and chemical reaction; air pollution control |
| 03/17/1992 | US5096600 Method for decontaminating soils |
| 03/11/1992 | EP0474500A1 Process for treating halogenated hydrocarbon containing-gas |
| 03/11/1992 | EP0474093A1 Process for the decomposition of asbestos |