| Patents for B01D 53 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols (135,933) |
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| 03/07/1990 | EP0356585A1 Amine deodorization |
| 03/07/1990 | EP0255022B1 Process for removal of halogen cyanides and phosgene from waste gases |
| 03/07/1990 | CN1040186A Process for catalytic treatment of wastewater |
| 03/07/1990 | CN1040154A Catalytic high molecular gas separation membrance |
| 03/07/1990 | CN1040153A Process for removal of nox from waste gases obtained in production of fertilizers |
| 03/07/1990 | CN1040152A Gas separation membrance with selective adsorbability |
| 03/07/1990 | CN1040148A Method for annihilating toxical waste and plasma chemical reactor |
| 03/07/1990 | CN1007041B Comprehensive processing method for cyanogen-contg. waste water and so2-contg. exhaust flue gas |
| 03/06/1990 | US4906443 Construction, method of making and method of using alumina-supported, precious metal oxidation catalysts |
| 03/06/1990 | US4906263 Adsorption filter with high air permeability |
| 03/06/1990 | US4906258 Method of conducting an absorption or desorption reaction between a gas and a solid |
| 03/06/1990 | US4906257 Method of and apparatus for treating waste gas from semiconductor manufacturing process |
| 03/06/1990 | US4906256 Membrane process for treatment of fluorinated hydrocarbon-laden gas streams |
| 03/06/1990 | US4906176 High temperature stable catalyst, process for preparing same, and process for conducting chemical reaction using same |
| 03/06/1990 | US4905476 Device for low temperature refrigerative drying of compressed air (and/) or other gases |
| 03/06/1990 | US4905470 Electrostatic filter for removing particles from diesel exhaust |
| 03/06/1990 | CA1266367A1 Selective-permeation gas-separation process and apparatus |
| 03/06/1990 | CA1266366A1 Process for removing metal carbonyls from gaseous streams |
| 03/01/1990 | DE3934808A1 Carbon recovery from flue gas - comprises using complex of furnace and reactive carbon di:oxide decomposition vessel energised by DC potential |
| 03/01/1990 | DE3829498A1 Air-foam injector in the foam-gas scrubber |
| 02/28/1990 | EP0356177A1 Spiral module fluid treatment device |
| 02/28/1990 | EP0355592A1 Process for removing silane compositions from flue gases containing silane |
| 02/28/1990 | EP0355317A2 Process and device for purifying waste air from a dryer |
| 02/28/1990 | EP0238592B1 Method for the selective removal of h2s from a h2s-containing gas |
| 02/27/1990 | US4904633 Catalyst for purifying exhaust gas and method for production thereof |
| 02/27/1990 | US4903756 Heat generator |
| 02/27/1990 | US4903755 Apparatus for preheating combustion air, accompanied by simultaneous reduction of NOx contained in the flue gases |
| 02/27/1990 | CA1266163A1 One-step process for purifying an inert gas |
| 02/22/1990 | WO1990001464A1 Process for the catalytic treatment of wastewater |
| 02/22/1990 | WO1990001369A1 Catalyst for liquid-phase oxidation of sulfur-containing compounds |
| 02/22/1990 | WO1990001367A1 Thermolytic detoxification reactor system |
| 02/22/1990 | WO1990001365A1 Two-step oxidizing gas washing system for covalent hydrids |
| 02/22/1990 | WO1990001363A1 Fiber bed filter |
| 02/22/1990 | WO1990001362A1 Filter device |
| 02/22/1990 | DE3839985A1 Permeation device for enriching or depleting gas constituents in or of gas mixtures |
| 02/22/1990 | DE3839984A1 Permeation device for enriching or depleting gas constituents in or of gas mixtures |
| 02/22/1990 | DE3828327A1 Method for producing an aggregate for building materials |
| 02/22/1990 | DE3827863A1 Catalytic exhaust gas purification apparatus |
| 02/22/1990 | DE3827813A1 Process and apparatus for purifying an exhaust gas laden with vapours of a foreign substance with recovery of the foreign substance |
| 02/22/1990 | DE3827806A1 Apparatus for drying and purifying gases |
| 02/21/1990 | EP0354952A1 Shaft with a moving bed of pourable material. |
| 02/21/1990 | EP0354937A1 Composite membranes of poly(methyl methacrylate) blends |
| 02/21/1990 | EP0354912A1 Process for manufacturing a carbon catalyst. |
| 02/21/1990 | CN1006850B Sulfur oxide scrubbing process |
| 02/20/1990 | US4902662 Treating with organic polysulfide and heating |
| 02/20/1990 | US4902489 Method for deodorizing and cleaning offensive odor gas |
| 02/20/1990 | US4902488 Process for nitrogen oxides reduction with minimization of the production of other pollutants |
| 02/20/1990 | US4902312 Carbon molecular sieves for purification of chlorofluorocarbons |
| 02/20/1990 | US4902311 Air purification process |
| 02/20/1990 | US4902307 Synthesis of SiO2 membrane on porous support and method of use of same |
| 02/20/1990 | US4901654 Deodorization and cleaning of medium temperature wet off-gases derived from burning of wet waste sludge |
| 02/15/1990 | DE3827288A1 Process and arrangement for carrying out the process for the microbiological degradation of organic wastes |
| 02/15/1990 | DE3827086A1 Process and apparatus for thermal decontamination of filter dusts and other residues |
| 02/15/1990 | DE3827005A1 Compressed air dryer |
| 02/15/1990 | DE3826971A1 Process for preparing modified calcium hydroxides for gas and waste gas purification using concentrates of active substances |
| 02/15/1990 | DE3818215A1 Process for the catalytic oxidation of a hydrocarbon/air mixture and apparatus for this purpose |
| 02/15/1990 | DE3807249C1 A process for the thermal utilisation of organic wastes |
| 02/14/1990 | EP0354866A1 Method and apparatus for the recovery of organic vapours from gases |
| 02/14/1990 | EP0354861A1 Apparatus, use and process for producing a regulator of a very low gas flow with a sonic flow velocity for measuring gas adsorption and desorption |
| 02/14/1990 | EP0354656A1 Process for the catalytic treatment of wastewater |
| 02/14/1990 | EP0354613A1 Process for cleaning exhaust gases from a sintering installation |
| 02/14/1990 | EP0354525A1 Carbon monoxide oxidation catalyst |
| 02/14/1990 | EP0354259A1 Improved pressure swing adsorption process |
| 02/14/1990 | EP0354258A1 Turndown control method for membrane separation systems |
| 02/14/1990 | EP0354220A1 Multi-stage process for reducing the concentration of pollutants in an effluent |
| 02/14/1990 | CN1039548A Sintering metal powder into structures without sintering aids |
| 02/14/1990 | CN1039542A Catalytically active materials |
| 02/14/1990 | CN1039541A Catalyst-agglomerate bodies encapsulated in structure |
| 02/14/1990 | CN1006761B Process for purification, in particular desulphurization of flue gas |
| 02/13/1990 | US4900626 Hollow composite fibers selectively permeable to water vapor |
| 02/13/1990 | US4900524 Method for separation of sulfur dioxide from gases |
| 02/13/1990 | US4900523 Process for removing cyanogen halides and phosgene from waste gases |
| 02/13/1990 | US4900517 Apparatus for the purification of exhaust gas from diesel motors |
| 02/13/1990 | US4900502 Hollow fiber annealing |
| 02/13/1990 | US4900448 Concentration gradient across a transfer medium of organic fibers |
| 02/13/1990 | US4900346 Portable air filtration device |
| 02/13/1990 | US4900340 Contacting device for gas and solid particles |
| 02/13/1990 | US4900338 Gas separation/extraction apparatus for separating and extracting a desired gas from a gas mixture and a balance valve therefor |
| 02/13/1990 | US4900282 Exhaust gas purifying device for marine engine |
| 02/13/1990 | CA1265754A1 Absorbent filter material matrices and their arrangements in filter cartridges |
| 02/13/1990 | CA1265750A1 Growth compensating metallic exhaust gas catalyst carrier body and sheet metal for manufacturing the same |
| 02/13/1990 | CA1265714A1 System for solar energy collection and recovery |
| 02/08/1990 | WO1990000926A1 Device for containing and holding in position specific quantities of bulk material |
| 02/08/1990 | DE3826137A1 DeNOx plate catalyst and process for the production thereof |
| 02/08/1990 | DE3824046A1 Continuous process for the purification of solvent-containing exhaust air with recovery of the solvent |
| 02/08/1990 | DE3818993A1 System for cleaning up polluted rooms |
| 02/08/1990 | DE3249786C2 Use of the residual solids from dry flue gas desulphurisation as building material for producing shaped objects |
| 02/07/1990 | EP0354053A2 Honeycomb structure and method of producing the same |
| 02/07/1990 | EP0353679A1 Filtering device |
| 02/07/1990 | EP0353467A1 Catalysts regeneration process |
| 02/07/1990 | CN1006682B Method for recovering nutrients from the flue gases of a fertilizer plant |
| 02/06/1990 | US4899017 Process for the selective separation of para-xylene from C8 aromatic mixtures |
| 02/06/1990 | US4898721 Halogen absorbtion using vegetable oils and surfactants |
| 02/06/1990 | US4898720 Method for gascleaning and a device for the accomplishment of the method |
| 02/06/1990 | US4898660 Catalytic uses of crystalline metallophosphate compositions |
| 02/06/1990 | US4898599 Oil-type compressor oil heat as regeneration energy to desorb adsorber bed |
| 02/06/1990 | US4898530 Method of operating a pair of burners and apparatus for use in the method |
| 02/01/1990 | DE3825725A1 Process for removing gaseous impurities by adsorption |
| 02/01/1990 | DE3825334A1 Vorrichtung zur aufnahme und raeumlichen festlegung bestimmter mengen von schuettmassen Apparatus for recording relevant spatial and lockup certain quantities of schuettmassen |
| 01/31/1990 | EP0353056A2 Honeycomb structure and method of producing the same |