| 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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| 06/29/1993 | CA1319470C Asbestos fibers modified with organic dyes |
| 06/25/1993 | CA2085432A1 Non-polluting compositions to degrade hydrocarbons and microorganisms for use thereof |
| 06/24/1993 | DE4141940A1 Biological destruction of explosive materials, esp. TNT - in an anaerobic first reductive stage in the presence of easily fermentable material and aerobic second stage to decompose the redn. prods. |
| 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. |
| 06/22/1993 | CA2085758A1 Method and apparatus for removing undesirable chemical substances from gases, exhaust gases, vapors, and brines |
| 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 |
| 06/16/1993 | EP0546314A1 Method for removing halogenated organic compounds from flue gases |
| 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 |
| 06/09/1993 | EP0545050A2 Process for the non-polluting removal, of petroliferons products from land or aquatic surfaces and oil-adsorbent |
| 06/07/1993 | CA2081958A1 Procedure for environmentally benign removal of oil substances similar to oil from the surface of water or the ground and an oil absorber suitable for this procedure |
| 06/02/1993 | EP0544480A1 Microwave and radio frequency sensitised oxidation |
| 06/01/1993 | USH1197 Controlled heating of gas to vaporize contaminants; temperature range controlled to prevent damage to fabrics and plastics; discharging |
| 06/01/1993 | US5215786 Composition for providing a foam barrier between a substrate and the atmosphere and the method of use |
| 05/27/1993 | WO1993009849A1 Immobilisation of metal contaminants from a liquid to a solid medium |
| 05/27/1993 | DE4138617A1 Biological decontamination of soil contg. hydrocarbon - by addn. of malachite green oxalate and N-cetyl-N,N,N-tri:methyl:ammonium bromide to promote growth of bacteria breaking down hydrocarbon(s) etc. |
| 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 |
| 05/26/1993 | EP0522056A4 Method and apparatus for treating hazardous waste or other hydrocarbonaceous material |
| 05/25/1993 | US5214014 Oxidation destruction with ozone; carrier and metal, metal oxide and/or metal sulfate |
| 05/25/1993 | US5213660 Secondary fiber cellulose product with reduced levels of polychlorinated dibenzodioxins and polychlorinated dibenzofurans |
| 05/19/1993 | EP0542404A1 Detoxification of aluminum spent potliner |
| 05/19/1993 | EP0541871A1 Hydroconversion of a waste feedstock comprising highly reactive organic compounds |
| 05/19/1993 | EP0541549A1 Biodegradable polymeric materials and articles fabricated therefrom |
| 05/18/1993 | US5211777 Diluent and filler |
| 05/12/1993 | CN1071848A Deep oxidation of halogenated organics with porous carbonaceous materials |
| 05/12/1993 | CN1020588C Process for detoxifying bottoms draw-off from high temp. chlorination reactor |
| 05/11/1993 | US5209851 Remediation methods for toxic materials |
| 05/11/1993 | US5209774 Discharged from a chlor-alkali plant, leaching with acid and sodium hypochlorite, thickening |
| 05/08/1993 | CA2082341A1 Method for treatment of potlining residue from primary aluminium smelters |
| 05/05/1993 | EP0540342A2 Removal of organics and volatile metals from soils using thermal desorption |
| 05/04/1993 | USH1189 Method and apparatus for destroying certain chemical and biological warfare agents |
| 05/01/1993 | CA2081712A1 Removal of organics and volatile metals from soils using thermal desorption |
| 04/29/1993 | WO1993008260A1 Yeasts containing multiple mammalian cytochromes for degrading complex chemical mixtures |
| 04/28/1993 | EP0538598A1 Process for converting water soluble heavy metal compounds into water insoluble, or sparingly soluble, compounds |
| 04/27/1993 | US5206003 Treating with catalyst comprising rhodium, palladium, manganese, or copper and oxides thereof |
| 04/22/1993 | DE4134480A1 Decontamination of fly ash and filter dust from combustion plant - involves heating to high temp. with air in rotary calciner and recycling flue gas to combustion, useful for removal of dioxin(s) and furan(s) and prevents environmental pollution |
| 04/21/1993 | EP0538205A1 Process for making inert industrial waste with a high content of heavy metals, for example lead |
| 04/21/1993 | EP0537999A2 Gelled foams |
| 04/16/1993 | CA2080035A1 Gelled foams |
| 04/15/1993 | WO1993006953A1 Bio-slurry reaction system and process for hazardous waste treatment |
| 04/14/1993 | EP0325596B1 Hazardous waste reactor system |
| 04/08/1993 | DE4131974A1 Fluorescent tube disposal - forms block of stacked tubes for end cap cutting and tube rinsing for recovery of fluorescent and mercury@ and glass |
| 04/07/1993 | EP0535758A1 Toxic waste fixant and method for using same |
| 04/07/1993 | EP0535757A1 Fixant for mixed organic and inorganic contaminated materials and method for using same |
| 04/06/1993 | US5200343 Method for microbial dehalogenation of haloaliphatic compounds using a sulfate reducing bacteria, desulfomonile tiedjei |
| 04/06/1993 | CA1315804C Purification of beta acids for hydrogenolysis and such purified beta acids |
| 04/01/1993 | WO1993005845A1 Method/process for the disposal of halogenated hydrocarbons and similar intractable materials |
| 04/01/1993 | DE4230988A1 Alkali metal azide recovery from gas generating material esp. waste - from vehicle safety bag, mfr. by dissolving in solvent, esp. water to remove metal oxide |
| 03/31/1993 | EP0534231A1 Fixation of heavy metals in scrubbed municipal solid waste incinerator ash |
| 03/30/1993 | US5198122 Method of detoxification of substances by utilization of ultrasonic energy |
| 03/30/1993 | US5197823 Method and apparatus for treating PCB-containing soil |
| 03/25/1993 | DE4131577A1 Disposable non-thixotropic metal hydroxide prodn. - from cyclone dust in titanium di:oxide mfr. by filtering acidic paste and oxidn. using before neutralising |
| 03/25/1993 | DE4131471A1 Catalytic hydrogenation of nitro-aromatic explosive in alcohol soln. - at low temp. and hydrogen@ pressure, giving high yield without safety problems |
| 03/24/1993 | EP0532857A1 Method for the treatment of residues of a chlorosilane distillation with steam |
| 03/23/1993 | US5196617 Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
| 03/18/1993 | DE4130881A1 Minimising solid loss in batch hydrolysis of chloro-silane distn. residue - by reducing initial temp. and steam supply before reaching hydrolysis temp. |
| 03/18/1993 | DE4130880A1 Continuous hydrolysis of chloro-silane distn. residue with steam - at temp which increases during reaction to reduce dust formation |
| 03/16/1993 | US5193936 Stabilization of leachable lead with sulfate ion and phosphate ion |
| 03/16/1993 | CA1314385C Autoclave for hazardous waste |
| 03/12/1993 | WO1993004995A1 Process for fixing lead-contaminated ecologically hazardous industrial waste materials using clinoptilolite zeolite |
| 03/04/1993 | WO1993004209A1 Process and plant for recovering heavy metals from waste |
| 03/04/1993 | WO1993003879A1 Electrodeless plasma torch apparatus and methods for the dissociation of hazardous waste |
| 03/04/1993 | WO1993003797A1 Composition for providing a foam barrier between a substrate and the atmosphere and the method of use |
| 03/04/1993 | DE4127823A1 Comminuted cigarette filter waste - used as adsorbent for removing liq. and gaseous pollutants from water, air and soil |
| 03/04/1993 | CA2115922A1 Composition for providing a foam barrier between a substrate and the atmosphere and the method of use |
| 03/03/1993 | EP0529203A1 Process for the disposal of wood impregnated with tar |
| 03/03/1993 | EP0528982A1 Catalysts for the destruction of halogenated organics. |
| 03/02/1993 | US5191155 Pollution control with multistage reaction with combustion of wastes |
| 03/02/1993 | US5191154 Method and system for controlling chemical reaction in a molten bath |
| 02/24/1993 | EP0527959A1 Biological system for degrading nitroaromatics in water and soils |
| 02/23/1993 | US5188041 Apparatus and method for low temperature thermal stripping of volatile organic compounds from soil and waste materials with non-oxidative co-current gases |
| 02/23/1993 | CA1313884C Process for detoxifying a bottoms draw-off from a high temperature chlorination reactor |
| 02/18/1993 | WO1993003308A1 Plasma disintegration for waste material |
| 02/18/1993 | WO1993002854A1 Stabilizing inorganic substrates |
| 02/18/1993 | WO1993002788A1 Foam concentrate |
| 02/18/1993 | WO1993002751A1 Method and system for controlling chemical reaction in a molten bath |
| 02/18/1993 | WO1993002750A1 Method and system for oxidation in a molten bath |
| 02/18/1993 | CA2114646A1 Stabilizing inorganic substrates |
| 02/18/1993 | CA2113175A1 Method and system for controlling chemical reaction in a molten bath |
| 02/18/1993 | CA2113174A1 Method and system for oxidation in a molten bath |
| 02/17/1993 | EP0527416A2 Process and device for disposing of an organic substance |
| 02/17/1993 | EP0527309A1 Method for processing chlorosilane distillation waste with hydrochloric acid, producing no waste water |
| 02/16/1993 | US5187344 Apparatus for decomposing halogenated organic compound |
| 02/10/1993 | EP0527077A1 Method for treating environmentally strongly polluting wastes |
| 02/10/1993 | EP0526956A2 Method for treatment of primers containing mercury compounds, potassium chlorate and antimony trisulphide |
| 02/09/1993 | US5185488 Pollution control of polychlorinated biphenyls |
| 02/04/1993 | DE4225630A1 Modulare selbstreinigende oxidationskammer Modular self-cleaning oxidation chamber |
| 02/03/1993 | WO1993002790A1 Self-cleaning mechanism for oxidation chamber |
| 02/03/1993 | WO1993002789A1 Modular oxidation chamber |
| 02/03/1993 | EP0526413A2 Ecologically acceptable composition for desiccation of solid, semi-solid and liquid waste |
| 02/03/1993 | EP0525974A1 Deep oxidation of halogenated organics with porous carbonaceous materials |