| Patents for A62D 101 - Harmful chemical substances made harmless, or less harmful, by effecting chemical change (5,283) |
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| 04/19/1994 | US5304703 Stirring liquid waste into dry free-flowing mixture of lime or calcium carbonate and organic salt of calcium, magnesium or aluminum to form paste, hardening, burning |
| 04/19/1994 | US5304702 Process of decomposing chlorofluorohydrocarbons |
| 04/14/1994 | WO1994008343A1 Method of disposing of an organic substance |
| 04/12/1994 | US5301620 Reactor and method for disassociating waste |
| 04/06/1994 | EP0590711A1 A method for the immobilisation of waste material contaminated with organic chemical compounds |
| 04/05/1994 | US5300137 Heating material to first temperature to vaporize moisture, discharging vapor, heating to second temperature to vaporize mercury, condensing |
| 03/31/1994 | WO1994006946A1 Method for removing mercury from contaminated soils and industrial wastes and related apparatus |
| 03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
| 03/31/1994 | DE4232285A1 Working-up material contg. iron oxide and/or non-ferrous heavy metal cpds. - using pulsed reducing flame fed directly into furnace |
| 03/31/1994 | DE4232246A1 Verfahren zur Zerstörung einer organischen Substanz Method for the destruction of organic matter |
| 03/31/1994 | DE4232177A1 Converting liq. residue from chloro-silane synthesis to solid - by reacting with water or sulphuric acid and addn. of silica, giving free-running prod. and pure hydrogen chloride |
| 03/31/1994 | DE4231405A1 Removal of a fluid contg. chlorinated organic cpds. - from a substance by condensn. and subsequent high temp. treatment providing for low-cost environmentally friendly disposal |
| 03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
| 03/31/1994 | CA2107455A1 Process for the disposal of chlorinated organic products by oxidation treatment |
| 03/30/1994 | CN1084488A Process and plant for removing lead, cadmium and zinc from dusts |
| 03/29/1994 | US5298620 Process for the destruction of cyanuric fluoride in the residues obtained during its preparation |
| 03/29/1994 | US5298233 Method and system for oxidizing hydrogen- and carbon-containing feed in a molten bath of immiscible metals |
| 03/29/1994 | CA2106417A1 Method for the immobilisation of waste material contaminated with organic chemical compounds |
| 03/24/1994 | DE4231292A1 Solidification of inorganic waste prods. from metal surface treatment - by treating aq. soln. of waste in reaction vessel with vacuum and introducing calcium oxide |
| 03/23/1994 | EP0587867A1 Process for recycling solids, powders and sludges contaminated with mercury |
| 03/17/1994 | WO1994006149A1 Toxic remediation system and method |
| 03/17/1994 | DE4230553A1 Catalyst with nickel aluminium spinel carrier for dehydrohalogenation - of halo-hydro-carbon cpds. e.g. chloro-benzene, with high activity, selectivity and stability, which is easy and economical to produce. |
| 03/16/1994 | EP0586910A1 Process and installation for removing lead, cadmium and zinc from dusts |
| 03/15/1994 | US5294315 Suspension of particles, illumination, filtration and fluid flow |
| 03/10/1994 | DE4230062A1 Processing heavy metal-contg. pollutants using glass melt - for permanent immobilisation and for heavy metal recovery |
| 03/08/1994 | US5292704 Titania, vanadium oxide, tungsten oxide, and noble metal |
| 03/08/1994 | US5292409 Cathode and process for degrading halogenated carbon compounds in aqueous solvents |
| 03/03/1994 | WO1994004467A1 Process and apparatus for neutralisation of acid streams |
| 03/03/1994 | WO1994004225A2 Method for the detoxification of mustard gas, sulfur-containing quaternary ammonium ionene polymers and their use as microbicides |
| 03/03/1994 | CA2139441A1 Process and apparatus for neutralisation of acid streams |
| 03/03/1994 | CA2121045A1 Method for the detoxification of mustard gas, sulfur-containing quaternary ammonium ionene polymers and their use as microbicides |
| 03/01/1994 | US5290432 Method of treating toxic aromatic halogen-containing compounds by electrophilic aromatic substitution |
| 02/24/1994 | DE4327804A1 Decomposition of organic halogen cpds. - by exposing soln. to UV light then adding alkali to ppte. salt, for economical destruction of e.g. tri:chloroethylene, poly:chloro-bi:phenyl and chloro-fluorocarbon cpds. |
| 02/24/1994 | DE4227501A1 Binding process for carbon-rich slag from rubbish burning appts. with chloride-rich residue from salt-mining - involves formation of hollow space filler which is not-burnable or explodable, and to which pozzolanic ashes and-or cement is added |
| 02/23/1994 | EP0584015A1 Method of neutralizing heavy metals in waste incineration residues |
| 02/22/1994 | US5288969 Electrodeless plasma torch apparatus and methods for the dissociation of hazardous waste |
| 02/22/1994 | US5288904 Method for the decomposition of trichloroacetic acid |
| 02/22/1994 | US5288371 Oxidation of organic materials by electrified microheterogeneous catalysis |
| 02/22/1994 | CA1327113C Process for the removal of heavy metals from acid, phosphate-containing, aqueous media |
| 02/17/1994 | WO1994003399A1 Improved method and apparatus for removing organic contaminants |
| 02/17/1994 | WO1994003237A1 A process for the destruction of halocarbons |
| 02/17/1994 | CA2141797A1 A process for the destruction of halocarbons |
| 02/16/1994 | CN1081923A Material processing |
| 02/15/1994 | US5286522 H2 O2 induced oxidation proof phosphate surface coating on iron sulfides |
| 02/15/1994 | US5286274 Crushing melting, oxidizing, adding calcium oxide to form calcium fluiride and slag |
| 02/09/1994 | EP0581854A1 Process for immobilizing heavy metals in the soil. |
| 02/08/1994 | US5285000 Composition and process for organic and metal contaminant fixation in soil |
| 02/08/1994 | US5284503 Process for remediation of lead-contaminated soil and waste battery |
| 02/03/1994 | WO1994002263A1 Treatment of solid material |
| 02/03/1994 | WO1994002210A1 Treatment of polyvinylchloride |
| 02/03/1994 | DE4225159A1 Decontaminating asbestos-contg. talc - by treatment with an aq. soln. of a fluorine-contg. acid or an acid salt of a fluorine contg. acid. |
| 02/02/1994 | EP0581093A1 Process and agent for the oxidative destruction of azides |
| 02/01/1994 | US5282936 Using a stable, nonsoluble, porous inorganic nonconductive solid, e.g., a zeolite; low temperature and energy |
| 01/26/1994 | EP0580533A1 Process for the thermal treatment of spent potlinings from Hall-Heroult electrolytic cells |
| 01/23/1994 | CA2100922A1 Process and means for the oxidative destruction of azides |
| 01/18/1994 | US5280149 Process for treating highly environmentally polluting residues |
| 01/12/1994 | EP0577871A1 Method for treating a liquid medium |
| 01/06/1994 | WO1994000533A1 Treatment of waste |
| 01/06/1994 | WO1994000389A1 Desensitization process for energetic compositions with regeneration of reagents |
| 01/05/1994 | EP0577046A1 Process and device for treatment of pyrotechnic material |
| 01/05/1994 | DE4221206A1 Disposal of plastic carriers coated with silver@ amalgam |
| 01/04/1994 | US5276250 Process for decomposing polyhalogenated compounds |
| 01/04/1994 | US5276249 Metal exchanged aluminum silicates for oxidation of impurities |
| 01/04/1994 | US5275739 In-situ restoration of contaminated soils and groundwater using calcium chloride |
| 12/28/1993 | US5273629 Method and apparatus for separating contaminants from fluidizable solids and converting the contaminate to less toxic or non-toxic materials |
| 12/23/1993 | WO1993025635A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/23/1993 | WO1993025278A1 Method and appartus for treating organic waste |
| 12/23/1993 | WO1993025277A1 Method for treating organic waste |
| 12/23/1993 | CA2136074A1 Method for treating organic waste |
| 12/23/1993 | CA2136073A1 Method and apparatus for treating organic waste |
| 12/23/1993 | CA2114840A1 Method of removing halogenated aromatic compound from hydrocarbon oil |
| 12/21/1993 | US5271772 Hazardous chemical decontamination process |
| 12/16/1993 | DE4243223C1 Treatment of copper-contg. residues from chloro-silane synthesis - with aq. alkali metal alkyl-siliconate soln. to form disposable solid |
| 12/16/1993 | DE4241540C1 Crude powder mixt. for cement clinker prodn. and sulphur di:oxide recovery - contains calcium sulphate, sand, ash, carbon carrier and pulp from decomposition of asbestos with sulphuric acid, for safe utilisation of harmful waste |
| 12/16/1993 | DE4219420A1 Metallic mercury removal from soil with organic chelating agent and oxidant - e.g. di:ethylene-tri:amine-penta:acetic acid and hydrogen peroxide for easy purificn. to legal limit |
| 12/16/1993 | DE4218863A1 Treating granular material or waste water loaded with heavy metals - by binding metals with chelating agent and passage through ion exchange system |
| 12/15/1993 | CN1079497A Method for removal of halogenated aromatic compound from hydrocarbon oil |
| 12/09/1993 | DE4218281A1 Organic material conversion to environmentally acceptable glass prods. - using decomposition agent comprising silicate material and inorganic peroxo cpd. and/or inorganic base, for halogenated cpds. e.g. dioxin |
| 12/08/1993 | EP0572954A1 Destruction of waste materials containing alumina, silica, calcium and nitrogen by molten salt oxidation |
| 12/08/1993 | EP0572813A1 Process for the disposal of flue gas residues |
| 12/08/1993 | CN1079285A Process for destroying toxic substances occuring during the elimination of organic refuse components |
| 12/06/1993 | CA2097146A1 Process for the disposal of flue gas residues |
| 12/02/1993 | DE4217987A1 Removal and recovery of heavy metals from earth, sludges and waterways - by amalgamation and sedimentation of esp. mercury@, nickel@ and cobalt@ and their cpds., by addn. of powered zinc@ or aluminium@ |
| 12/02/1993 | CA2087466A1 Destruction of waste materials containing alumina, silica, calcium and nitrogen by molten salt oxidation |
| 12/01/1993 | EP0571970A1 Method and composition for neutralizing hazardous material spills |
| 12/01/1993 | EP0571577A1 Treatment of waste |
| 11/28/1993 | CA2097043A1 Compositions to neutralize acidic and alkaline materials and methods for using same |
| 11/25/1993 | DE4217133A1 Minimising dust and slag to remove chloride, heavy metal(s) and salt(s) - by washing with organic acid, filtering and adding quicklime or slaked lime to solid to give hydraulic binder properties |
| 11/25/1993 | DE4216776A1 Detoxification of halogenated aromatic hydrocarbon cpds. using oxidant - e.g. ozone, hydrogen per:oxide or UV light causing dehalogenation and partial decomposition, e.g. for detoxifying contaminated soil or waste |
| 11/23/1993 | US5264655 Method and products for treating asbestos |
| 11/18/1993 | EP0567602A4 Method and apparatus for decontamination of soils |
| 11/11/1993 | WO1993022466A1 Mercury contaminated mud treatment |
| 11/11/1993 | WO1993022001A1 Method for indirect chemical reduction of metals in waste |
| 11/11/1993 | DE4221343C1 Pyrotechnic material disposal - by controlled combustion and waste gas cleaning |
| 11/11/1993 | CA2135082A1 Method for indirect chemical reduction of metals in waste |
| 11/10/1993 | EP0568903A1 Process for treatment of materials containing heavy metals |
| 11/10/1993 | EP0504203B1 Method and apparatus for effecting gas-liquid contact |
| 11/03/1993 | EP0567602A1 Method and apparatus for decontamination of soils |
| 11/02/1993 | US5258562 Method for treating asbestos |
| 11/02/1993 | US5258131 Solution of organic acid/ammonium or alkali metal fluoride mixtures |