| 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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| 05/03/1994 | US5308507 Method and apparatus for removing organic contaminants |
| 05/03/1994 | US5308458 Destruction process |
| 04/28/1994 | WO1994009167A1 Extraction of mercury and mercury compounds from contaminated material and solutions |
| 04/28/1994 | WO1994008661A1 Product and method for treating asbestos |
| 04/28/1994 | DE4235750A1 Decontamination of chemical and microorganism soiling - using electromagnetic waves of low field strength to activate converter molecules at the surfaces to emit radiation to neutralise chemicals and microorganisms |
| 04/27/1994 | EP0594313A1 Hydrolyzed chlorosilicon by-product addition to cement |
| 04/27/1994 | EP0593895A1 Process for the disposal of chlorinated organic products by oxidation treatment |
| 04/27/1994 | EP0593802A1 Method of removing volatile chlorinated hydrocarbon base materials |
| 04/21/1994 | DE4235551A1 Recycling of asbestos contg. substances - by mixing with oxygen cpds. of phosphorous followed by heat treatment, eliminates asbestos fibres |
| 04/21/1994 | DE4235214A1 Processing contaminated pre-cleaned oil in plasma reactor - with pre-cleaning by extn. with mixt. of polar solvent and non-polar solvent, sepg. heavy phase, and removing volatiles by distn.. |
| 04/21/1994 | DE4235213A1 Cleaning contaminated oil by extn. with mixt. of polar solvent and non-polar solvent - sepg. heavy phase, removing volatiles from extract by distn. and cracking prod. in plasma reactor |
| 04/20/1994 | EP0592418A1 Process and device for detoxifying the exhaust gas from rubbish incineration plants. |
| 04/20/1994 | EP0495814B1 Waste disposal process |
| 04/19/1994 | US5304710 Reduction |
| 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 |
| 04/14/1994 | DE4234023A1 Decontamination of chemical warfare gas contaminated items and enclosed spaces - by silica gel adsorption |
| 04/13/1994 | EP0592025A1 Process for seperating halogenated dioxins and furans from exhaust gases from combustion devices |
| 04/13/1994 | EP0591211A1 Reversible transformation of hydrocarbons |
| 04/12/1994 | US5301620 Reactor and method for disassociating waste |
| 04/12/1994 | CA1328394C Stable biodegradable foam |
| 04/07/1994 | DE4316260C1 Disposal of old railway sleepers - by composting with added organic material, sewage sludge, etc. |
| 04/07/1994 | DE4233577A1 Adsorption of chloro:fluorocarbon(s) onto hydrophobic molecular sieve - composed of dealuminised natural or synthetic zeolite with a well defined pore size |
| 04/07/1994 | DE4233458A1 Biological cleaning of coarse loose organic material - by using water in container with microorganisms to breakdown hydrocarbon(s) |
| 04/07/1994 | DE4228569C1 Removing substd. aminophenol cpds. from aq. solns. - by extn. at acid pH with higher tert. aliphatic amine or salt, as non-toxic, biodegradable extractant |
| 04/06/1994 | EP0590711A1 A method for the immobilisation of waste material contaminated with organic chemical compounds |
| 04/06/1994 | EP0590202A1 Process and device for removing undesirable chemical compounds from gases, exhaust gases, vapors and brines |
| 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 | EP0589818A2 Process for the biological removal of nitrated derivatives |
| 03/30/1994 | EP0589155A1 Anaerobic treatment of substrates with high fat content |
| 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 |
| 03/22/1994 | US5296164 High-stability foams for long-term suppression of hydrocarbon vapors |
| 03/22/1994 | US5296106 Dispersing reaction enhancer in fluidic medium, electrifying preactivation mixture to ionic equilibrium, dispersing reactant, electrifying, collecting product |
| 03/22/1994 | US5296040 Process for cleaning debris containing pollutants |
| 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 |
| 03/09/1994 | EP0586143A1 Bench scale process and apparatus for determining operating parameters of a thermal desorption process |
| 03/09/1994 | EP0585652A2 Bacterial strains for the reduction of mercury oswell as the processes for their production |
| 03/09/1994 | EP0585357A1 Amoebae/bacteria consortia and uses for degrading wastes and contaminants |
| 03/08/1994 | US5292704 Titania, vanadium oxide, tungsten oxide, and noble metal |
| 03/08/1994 | US5292695 Steam, hydrogen, carbon monoxide gas stream |
| 03/08/1994 | US5292409 Cathode and process for degrading halogenated carbon compounds in aqueous solvents |
| 03/08/1994 | US5292375 Removal of lead based coating by vitrification |
| 03/03/1994 | WO1994004631A1 Municipal solid waste disposal process |
| 03/03/1994 | WO1994004467A1 Process and apparatus for neutralisation of acid streams |
| 03/03/1994 | WO1994004251A1 Catalytic incineration of organic compounds |
| 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 | DE4223029A1 Extractive removal of tar oils from wood - comprises using supercritical gas as extraction agent. |
| 03/03/1994 | CA2139845A1 Catalytic incineration of organic compounds |
| 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 | US5290697 Gram-positive bacteria; grows in aqueous saline solution; absorbs metal oxides in aqueous solutions |
| 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 |
| 02/24/1994 | CA2104502A1 Bacterial strains for mercury reduction and process for their production |
| 02/23/1994 | EP0584015A1 Method of neutralizing heavy metals in waste incineration residues |
| 02/23/1994 | EP0583670A1 Metallothermic reaction mixture |
| 02/23/1994 | EP0583327A1 Method and apparatus for eliminating volatile amines used in preparing foundry cores. |
| 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 | CA2104522A1 Bench scale process and apparatus for determining operating parameters of a thermal desorption process |
| 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 | DE4311981A1 Microbial cultures for degrading polycyclic aromatics - comprising two Pseudomonas strains, esp. for tar oil detoxification |
| 02/17/1994 | DE4303842A1 Removal of organic substances from surfaces or water - using coal-based adsorbent |
| 02/17/1994 | DE4227024A1 Thermal disposal of waste material containing asbestos - waste is sealed in containers, preferably sections of steel pipe, and containers are placed in furnace, e.g. metallurgical blast furnace |
| 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 |
| 02/10/1994 | DE4206795A1 Removal of tar oil form impregnated wood which can be used to make horticultural compost - by continuous extraction of comminuted wood and fermentation of extract |
| 02/10/1994 | DE4206794A1 Composting of wood impregnated with tar oil - using microorganisms capable of degrading tar oil components. |
| 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 | WO1994002211A1 A method for the remediation of organometals, especially tetraethyllead (tel), in contaminated natural media |
| 02/03/1994 | WO1994002210A1 Treatment of polyvinylchloride |
| 02/03/1994 | WO1994002159A1 Detoxification of certain environmental protection agency declared toxins by naturally occurring anaerobic organisms |
| 02/03/1994 | DE4306861A1 Recovering oil and fat degrading microorganisms from waste water samples - by growing on tallow contg medium and selection for high growth rate, used for eliminating fats e.g. from blocked drains. |