序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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181 | PROCEDE D'INSOLUBILISATION ET DE CONSOLIDATION DE BRASQUES USEES PROVENANT DES CUVES D'ELECTROLYSE HALL-HEROULT | EP97947133.0 | 1997-11-25 | EP0946449A1 | 1999-10-06 | PERSONNET, Pierre; BOUZAT, Gilbert |
The invention concerns a method for the insolubilisation and consolidation in the form of pellets of used brasques from electrolyte vessels for producing aluminium comprising the grinding of said brasques and mixing them closely with various refractory pulverulent additives before burning characterised in that it consists in: introducing a first additive selected from the group of aluminium silicates for fixing the alkaline metals during burning; introducing a second additive which, during burning, will combine with the saturating fluorine-containing compounds to form new stable and insoluble compounds and by its non-combined supernatant fraction, will ensure the consolidation of the mixture, and this additive is selected from the group of calcium oxides and salts and preferably of lime cements and mortars; carrying out a forming by agglomerating in the form of pellets the close mixture of used ground brasques with said first and second pulverulent additives before burning at a temperature between 700 °C and 950 °C. | ||||||
182 | PROCESS FOR THE CONFINEMENT OF SOLID MATERIALS | EP96932762.6 | 1996-10-17 | EP0857193B1 | 1999-04-14 | CHOQUARD, Philippe; LAMARTINE, Roger, Jean, Paul |
A process for the confinement of generally harmful solid materials is disclosed and claimed. The solid materials are immobilized and confined within a solid matrix for an unlimited storage free from pollution risks. The solid materials are mixed with at least one low condensed, liquid phenolic resin and a cross-linking agent which is selected from partly or wholly sulfonated linear and/or cyclic phenolic oligomers, and the cross-linking which forms said solid matrix under hardening is allowed to occur. When a mould is used for the hardening reaction, solid blocks are formed which are resistant to water, heat, and environmental acids and bases. These blocks need not be stored in a safe environment but can further be used for applications such as construction elements. | ||||||
183 | Microorganisms and process for the biological removal of nitrated derivatives | EP93500100.8 | 1993-07-09 | EP0589818B1 | 1998-09-09 | Ramos Martin, Juan Luis; Duque Martin de Oliva, Estrella |
184 | PROCESS FOR THE CONFINEMENT OF SOLID MATERIALS | EP96932762.0 | 1996-10-17 | EP0857193A1 | 1998-08-12 | CHOQUARD, Philippe; LAMARTINE, Roger, Jean, Paul |
A process for the confinement of generally harmful solid materials is disclosed and claimed. The solid materials are immobilized and confined within a solid matrix for an unlimited storage free from pollution risks. The solid materials are mixed with at least one low condensed, liquid phenolic resin and a cross-linking agent which is selected from partly or wholly sulfonated linear and/or cyclic phenolic oligomers, and the cross-linking which forms said solid matrix under hardening is allowed to occur. When a mould is used for the hardening reaction, solid blocks are formed which are resistant to water, heat, and environmental acids and bases. These blocks need not be stored in a safe environment but can further be used for applications such as construction elements. | ||||||
185 | METHOD FOR INDIRECT CHEMICAL REDUCTION OF METALS IN WASTE | EP93910749.6 | 1993-04-23 | EP0639091B1 | 1996-07-03 | NAGEL, Christopher, J.; BACH, Robert, D.; JOHNSTON, James, E. |
An environmentally sound process is described for the remediation of waste materials that allows the separation, recovery and decontamination of metals. The method includes chemically reducing essentially all of a reducible toxic and potentially hazardous metal-containing component of a waste composition. The waste is directed into a molten metal bath, including a first reducing agent which, under the operating conditions of the molten metal bath, chemically reduces a metal of the metal-containing component to form a dissolved intermediate. A second reducing agent is directed into the molten metal bath. The second reducing agent, under the operations of the molten metal bath, chemically reduces the metal of the dissolved intermediate. The rate at which the second reducing agent is directed into the molten metal bath, relative to the rate at which the component of the waste is directed into the molten molten metal bath, is sufficient to cause essentially all metal-containing intermediate formed to dissolve in the molten metal bath, thereby indirectly chemically reducing the component of the waste. This indirect reduction technology can remediate a variety of materials, including ash metal-contaminated municipal waste, vitreous slag-like materials and spent metal catalysts, while allowing the recovery of remediable metals. | ||||||
186 | Method for separating compounds in process streams | EP95303850.2 | 1995-06-06 | EP0686614A2 | 1995-12-13 | Hoffman, William Christopher; Dever, John Patrick |
A method, especially applicable on a continuous basis to commercial process streams, for treating unwanted by-products and/or impurities contained in those streams. The method comprises the reaction in situ of such by-products or impurities with a reagent, preferably selected for its reactivity under ambient conditions of the process stream, to produce one or more materials which may then be separated from the process by economical means. The treated stream may be recycled to the process for further processing. While the method is not limited as to the process to which it is applied nor to the reagent or reagents used, in one convenient embodiment, formaldehyde in aqueous solution is reacted with an alkali metal sulfite or bisulfite to produce the corresponding salt, which may then be separated essentially completely by, e.g., distillation or membrane separation, etc., or its concentration in the process may be controlled by, e.g., continuous removal of a purge stream, etc. |
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187 | Verfahren und Vorrichtung zum Einschmelzen von Asbest und/oder asbesthaltigem Material | EP95107704.9 | 1995-05-20 | EP0684054A1 | 1995-11-29 | Rizzon, John |
Die vorliegende Erfindung beschreibt ein Verfahren und eine Vorrichtung zum Entsorgen von Asbest und/oder asbesthaltigem Material und von Reststoffen aus Abfallverbrennungsanlagen sowie von Aktivkoks und/oder Aktivkohle, bei dem das Material auf eine Korngröße < 50 mm zerkleinert wird, dem zerkleinerten Material Additive und feste Brennstoffe mit einer Korngröße < 50 mm zugesetzt werden und das vereinigte Material gemischt wird, das Gemisch in den Ringschacht (3) der Primärkammer (2) des Oberflächenschmelzofens (1) eingeleitet wird, in der Primärkammer (2) eine Temperatur von 1250 ° C bis 1600 °C eingestellt wird, das ablaufende geschmolzene Material und die Rauchgase die Primärkammer (2) durch den zentralen Auslauf (4) verlassen, das geschmolzene Material durch die Sekundärkammer (5) geleitet, granuliert und von einem Entschlacker (6) ausgetragen wird. |
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188 | Procédé d'incinération de déchets | EP91400742.2 | 1991-03-20 | EP0451006B1 | 1995-11-29 | Pichat, Philippe |
189 | Method for immobilizing ecologically harmful, organic or inorganic compounds | EP95200451.3 | 1995-02-23 | EP0669145A1 | 1995-08-30 | Hooykaas, Carel Willem Jan |
The invention relates to a method for immobilizing ecologically harmful, organic or inorganic compounds, by mixing these compounds in the presence of water with a fixant which comprises an absorbent and allowing the mixture to set, after the addition of an inorganic hydraulic binder, to obtain a hard, stone-like material, wherein the absorbent used in the fixant is optionally pre-treated activated carbon, cellulose or a cellulose derivative. The activated carbon used preferably has been sulphurized or treated with a silicon-containing organic reagent. The fixant further contains, according to an expedient embodiment, at least one coordination complex-forming agent which, in particular, is selected from an iron, manganese or aluminium salt or comprises a combination thereof. |
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190 | TREATMENT OF WASTE. | EP93912467 | 1993-06-29 | EP0648255A4 | 1995-07-12 | CONOCHIE DAVID STEWARD; BATTERHAM ROBIN JOHN; MATTHEWS TERRY ALAN |
A method of treating inorganic solid waste in a bath of molten metal contained in a vessel (3) which has a space above the bath and a waste gas outlet (11) is disclosed. The method comprises injecting waste into the bath to form a primary reaction zone (13) in which there are reactions between the waste and the bath or in which the waste undergoes a change of phase to convert the waste into more readily recoverable or disposable products. The method further comprises injecting oxygen-containing gas towards the surface of the bath to form a secondary reaction zone (17) in a section of the space above the bath through which oxidisable products released from the primary reaction zone (13) flow to reach the waste gas outlet (11) in the vessel (3) and in which the oxidisable products are oxidised and the heat released by such oxidation is transferred into the bath. | ||||||
191 | Procédé de traitement par voie humide de brasquages usés provenant de cuves d'électrolyse Hall-Héroult | EP91420402.9 | 1991-11-14 | EP0486410B1 | 1995-03-01 | Bontron, Jean-Claude; Personnet, Pierre-Bernard; Lamerant, Jean-Michel |
192 | Process for the biological removal of nitrated derivatives | EP93500100.8 | 1993-07-09 | EP0589818A3 | 1995-01-04 | Ramos Martin, Juan Luis; Duque Martin de Oliva, Estrella |
Procedure for the biological removal of nitrated derivatives. The removal of 2,4-DNT, 2,6-DNT and TNT contained in industrial effluents, water and soil polluted with said compounds may be carried out biologically by inoculating the effluents and soil to be treated with a culture of microorganisms capable of degrading 2,4-DNT, 2,6-DNT and TNT. The bacteria belonging to the genus Pseudomonas that are capable of utilizing said compounds as a source of C and/or N, thereby inducing their removal, have been isolated. This process can be applied to the removal of 2,4-DNT, 2,6-DNT and TNT contained in polluted industrial effluents, water and soil, as well as to the destruction of excess TNT from arsenals and plants, thereby providing an effective solution to the environmental problem associated with the treatment of said pollutants. |
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193 | ELECTRODELESS PLASMA TORCH APPARATUS AND METHODS FOR THE DISSOCIATION OF HAZARDOUS WASTE. | EP92918747 | 1992-08-14 | EP0598842A4 | 1994-07-27 | WONG ALFRED YIU-FAI; KUTHI ANDRAS |
194 | Verfahren zur basischen Aufarbeitung von kupferhaltigen Rückständen der direkten Synthese von Organochlor- und/oder Chlorsilanen | EP93120030.7 | 1993-12-11 | EP0603691A1 | 1994-06-29 | Brumme, Johannes, Dr. rer. nat.; Heinze, Ulrich, Dr.-Ing.; Tamme, Gudrun |
Die Erfindung betrifft ein Verfahren zur basischen Aufarbeitung kupferhaltiger Rückstände der Direkten Synthese von Organochlor- und/oder Chlorsilanen, die hauptsächlich in Form von Reaktorrückständen, Filterstäuben oder Hydrolyseschlämmen anfallen. |
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195 | Method and composition for neutralizing hazardous material spills | EP93108486.7 | 1993-05-26 | EP0571970A1 | 1993-12-01 | Runow, Michael J.; McGillivray, Shawn Ray |
Compositions and methods for using the compositions useful for neutralizing both acidic materials, e.g., acidic spills, and alkaline materials, e.g., alkaline spills, are disclosed. In one embodiment, such a composition comprises an admixture of a first alkaline earth metal component in an amount effective to at least partially neutralize an acidic material which is contacted by the composition, the first alkaline earth metal component having a limited degree of solubility in the acidic material at the conditions of use, and a second alkaline earth metal component in an amount effective to at least partially neutralize an alkaline material which is contacted by the composition. In a second embodiment the composition includes a sufficient amount of the second alkaline earth metal component to at least partially neutralize an alkaline material contacted thereby. |
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196 | Verfahren und Vorrichtung zum kontinuierlichen Einschmelzen von Reststoffen | EP92811015.4 | 1992-12-22 | EP0551057A1 | 1993-07-14 | Moergeli, Rudolf; Schaub, Martin |
Zum kontinuierlichen Einschmelzen werden Reststoffe (1), welche organische und anorganische Komponenten enthalten, in einer Heizeinrichtung (10) mit einem Einschmelztiegel (11) indirekt auf eine Temperatur TS aufgeheizt, wobei die organischen Komponenten durch Zugabe (41) eines reaktiven Vergasungsmittels (4) vergast und die produzierten Gase (46) abgezogen werden. Die verbleibenden anorganischen Reststoffe werden anschliessend im Tiegel (11) eingeschmolzen, über eine Leitung (16) abgezogen und durch Abkühlung in einen inerten, festen Endzustand (26) gebracht. |
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197 | Toxic waste fixant and method for using same | EP92203020.0 | 1992-09-30 | EP0535758A1 | 1993-04-07 | Hooykaas, Carel Willem Jan; Newton, Jeffrey Porter |
A toxic waste fixant for detoxification of a contaminated soil, sediment, and or sludge material includes a mixture of: ferric and/or ferrous sulfate, manganese sulfate, and/or aluminium sulfate and/or Portland cement, and/or gypsum (calcium sulfate), and/or blast furnace slag, and/or lime (calcium oxide). Fixants made from mixtures of the above compounds are designed to prevent leaching in excess of regulatory standards for specified inorganic and organic toxic compounds and elements. These fixants will also reduce the concentration of most organic toxic compounds through various chemical reactions and bonding as determined by solvent extractions and analysis by GC/MS. The ferric and/or ferrous sulfate may be partially or completely replaced by cobalt sulfate, whereas instead of the respective sulfates the corresponding chlorides may be used as well. |
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198 | Procédé d'incinération de déchets | EP91400742.2 | 1991-03-20 | EP0451006A1 | 1991-10-09 | Pichat, Philippe |
Le procédé est du type selon lequel les fractions solides des déchets, de toutes origines, sont concassées et broyées à granulométrie inférieure à 5mm puis soumises à un chauffage entre 750°C et 1350°C. Selon l'invention, après un éventuel ajout de déchets liquides pour obtenir une masse pâteuse, on incorpore à cette dernière un réactif, sous forme pulvérulente à grains inférieurs à 500 microns à base de carbonate de calcium, oxyde de silicium et éventuellement, de l'alumine et des oxydes de fer avec des quantités telles qu'après incinération on ait un rapport :
Application au traitement de tous types de déchets par combustion. |
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199 | Method for decontaminating a permeable subterranean formation | EP85308096.8 | 1985-11-07 | EP0181211B1 | 1991-03-27 | Brown, Richard Alexander; Norris, Robert Donald |
200 | VERFAHREN ZUR IMMOBILISIERUNG VON SCHADSTOFFEN IM BODEN ODER BODENÄHNLICHEN MATERIALIEN | EP87906156.2 | 1987-09-23 | EP0326561B1 | 1991-03-06 | BÖLSING, Friedrich |
The process described concerns harmful substances which present a potential danger for the environment. They are neutralized by incorporating in the ground or ground-like material a reaction product, in the form of a preparation of hydrophobic solid matter, in order to undergo a chemical interaction with the harmful substance, thereby forming a water-insoluble reaction product. This preparation preferably contains the educt or reaction product of a dispersion-type chemical reaction. The educt for dispersion in a chemical manner can, for example, be in the form of calcium oxide or an aluminium alcoholate. For the chemical interaction, precipitation, condensation, polymerization, complexing or addition may be envisaged. The process according to the invention is also applicable in the case where the earth, contaminated by harmful substances, contains cohesive structures such as loam or clay, so that there can be no influence on the environment due to reaction bodies which have not reached an interaction. |