| Patents for B01D 47 - Separating dispersed particles from gases, air or vapours by liquid as separating agent (12,036) |
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| 02/13/1991 | CN2071080U Water spray dust remover |
| 02/06/1991 | CN1011487B Apparatus for increasing putting gaseous medium into liquid medium |
| 02/05/1991 | US4990166 Gas stream purifying equipment |
| 01/30/1991 | EP0410336A1 Process for reduction of chlorinated solvent emissions |
| 01/30/1991 | CN2070404U Automatic high-efficient smoke and dust remover |
| 01/28/1991 | CA2022051A1 Process for reduction of chlorinated solvent emissions |
| 01/23/1991 | CN2069747U High-efficiency wet-type dust collector |
| 01/22/1991 | US4986966 Air pollution control apparatus for efficient removal of fly ash and sulfur dioxide |
| 01/22/1991 | US4986838 Inlet system for gas scrubber |
| 01/16/1991 | CN1048506A Method and apparatus for treatment of waste gas containing dusts and chemical contaminants |
| 01/15/1991 | US4985056 Device for purifying contaminated gas |
| 01/09/1991 | CN1048337A Apparatus for cleaning flue gases |
| 01/09/1991 | CN1011120B Industrial smoke purifying equipment |
| 01/02/1991 | CA1278507C Flue gas scrubber system |
| 01/01/1991 | US4981500 Venturi type cooler for flue gas desulphurization device |
| 12/27/1990 | WO1990015656A1 Improved inlet system for gas scrubber |
| 12/27/1990 | CA1278155C Vacuum cleaner construction |
| 12/25/1990 | US4979967 Contaminant transport apparatus |
| 12/19/1990 | EP0403424A1 Device for removing of aerosols out of the air in a nuclear reactor containment |
| 12/19/1990 | CN2067600U Impact-spray combined duster |
| 12/13/1990 | DE3918452A1 Washing rising gases - by pressurised transverse liq. sprays from annular jets at intervals up column |
| 12/12/1990 | CN1010749B Cleaning process of wet-exhaust gas and equipment thereof |
| 11/28/1990 | CN2066350U Dynamic wave duster |
| 11/07/1990 | EP0396375A2 Method and apparatus for the treatment of a waste gas containing dusts and chemical contaminants |
| 11/05/1990 | WO1990013350A1 Contaminant transport apparatus |
| 11/05/1990 | CA2032476A1 Contaminant transport apparatus |
| 10/31/1990 | CN2064678U Narrow seam spray water diving type dust remover |
| 10/24/1990 | EP0393791A1 A spraying system and a process for treating a flue gas |
| 10/10/1990 | CN1045990A Method and equipment for quenching and cleansing high-pressure gasified gas |
| 10/04/1990 | DE4001739A1 Cooling, dust-freeing and water-vapour saturation of gases - from pressure gasification of powdered fuels, by spray quenching without caking of appts. and over wide pressure and temp. ranges |
| 10/03/1990 | CA2013759A1 Steam scrubbing method and system for exhaust gases |
| 10/02/1990 | CA1274788A1 Process for removing solids from a gas containing the same |
| 09/26/1990 | CN2062789U Device for eliminating smoke and reducing dust |
| 09/18/1990 | US4957519 Air-cleaning apparatus |
| 09/18/1990 | CA1274060A2 Vacuum cleaner |
| 09/12/1990 | CN1045231A Method and apparatus for wetting particles contained in gas flow |
| 09/10/1990 | CA2011859A1 Apparatus for injecting gases into a liquid |
| 09/04/1990 | US4954148 Apparatus for treating gas |
| 08/29/1990 | EP0384866A1 Process for purifying flue gas containing nitrogen oxides |
| 08/28/1990 | CA1273168A2 Vacuum cleaner |
| 08/23/1990 | CA2009789A1 Process for purifying by the wet method fumes containing nitrogen oxides |
| 08/22/1990 | CN2060846U Smoke precipitor sealed by circulating water |
| 08/22/1990 | CN1044769A Supercooling type purifying apparatus of smoke and fume |
| 08/15/1990 | CN1044598A Boiler flue-gas treater and treating method thereof |
| 08/14/1990 | US4948402 Modular air scrubber system |
| 08/14/1990 | US4948394 Introduction of a polar solvent and compression of gas-liquid mixture, separation and transportation |
| 08/09/1990 | DE3903410A1 Liquid soot filter |
| 08/07/1990 | US4946486 Scrubber system for the removal of contaminants from a fluid stream |
| 07/25/1990 | EP0379472A1 Device for cleansing air discharged from a sand-blasting chamber and a micro-sandblasting machine |
| 07/24/1990 | US4943306 Exhaust gas purifying system |
| 07/17/1990 | US4941896 Venturi device with suction openings for power plants and industries |
| 07/11/1990 | EP0376971A1 Process and installation for recovering reusable gas from waste through pyrolysis. |
| 07/03/1990 | US4938787 Filter device and filter apparatus comprising such filter devices |
| 06/28/1990 | DE3844629A1 Apparatus and process for scrubbing and purifying exhaust gases or exhaust air by foam |
| 06/26/1990 | US4936880 Scrubber |
| 06/26/1990 | US4936878 Method for cleansing gas and apparatus herefor |
| 06/13/1990 | EP0373089A1 Washing device for polluted gas |
| 06/12/1990 | US4933118 Gas scubbing apparatus |
| 06/12/1990 | US4932984 Contacting vent stream with liquid spray of chlorinated solvent to condense stream |
| 06/06/1990 | CN1042759A Transition duct for centrifugal fan |
| 06/05/1990 | US4931263 Wet-process stack gas purification method |
| 05/29/1990 | US4929258 Water drops in tanks to condense the smoke, deodorizing |
| 05/29/1990 | CA1269612A1 Gas-treating device and method for treating gas |
| 05/23/1990 | EP0369783A2 Transition duct for centrifugal fan |
| 05/22/1990 | US4926620 By passing air through opposing water jet streams |
| 05/17/1990 | WO1990005015A1 Method and apparatus for removal of scrubber liquid with separation of predominantly solid impurities |
| 05/15/1990 | US4925462 Processes for removing organochemical components |
| 05/09/1990 | CN2056867U Smoke processing device for boiler |
| 05/02/1990 | CN2056605U Simple high efficient purifying device for controlling atmosphere pollution |
| 04/25/1990 | CN2056483U High-efficiency water membrance dust-collector |
| 04/25/1990 | CN2056362U Hydraulic centrifugal type liquid film producer |
| 04/24/1990 | US4919696 Supercooling type mist eliminator apparatus |
| 03/01/1990 | DE3829498A1 Air-foam injector in the foam-gas scrubber |
| 02/22/1990 | WO1990001362A1 Filter device |
| 02/21/1990 | CN1006854B Blowing-sucking type multi-layed water-ourtain paint-spraying room |
| 02/21/1990 | CN1006850B Sulfur oxide scrubbing process |
| 02/14/1990 | CN1039641A Process for cleaning gas turbine inlet air |
| 02/13/1990 | US4900341 Purification system |
| 02/08/1990 | DE3826477A1 Filter apparatus |
| 02/08/1990 | DE3826475A1 Filter apparatus |
| 02/07/1990 | EP0353679A1 Filtering device |
| 02/07/1990 | CN2052299U Combined shock-foam precipitator |
| 02/06/1990 | CA1265435A1 Method for producing suspension in air of ultra-fine mist particles |
| 01/25/1990 | WO1990000437A1 Process and device for purifying waste gases |
| 01/25/1990 | WO1990000436A1 Process for cleaning gas turbine inlet air |
| 01/25/1990 | DE3827062A1 Process for cleaning the exhaust air of a paint spray booth and a paint spray booth for carrying out this process |
| 01/23/1990 | US4895100 Painting installation |
| 01/16/1990 | US4894073 Filter |
| 01/11/1990 | DE3821739A1 Process and apparatus for dedusting areas, in particular during sand-blasting work and similar |
| 01/10/1990 | EP0350272A1 Process for cleaning gas turbine inlet air and apparatus therefor |
| 01/10/1990 | EP0204709B1 Process for removing the impurities from gases and device for implementing such process |
| 01/10/1990 | CN2050932U Sweetening and dust catcher for waste gas in chimney neck |
| 01/02/1990 | US4891169 Transition duct for centrifugal fan |
| 12/27/1989 | EP0347434A1 Air scrubber for cement bin. |
| 12/27/1989 | CN1038225A Flue dust treater |
| 12/19/1989 | US4888158 Separating unevaporated drops from hot flue gas stream using modified electrostatic precipitator; removal of sulfur oxides and particles; pollution control |
| 12/14/1989 | WO1989011925A1 Apparatus for removal of hazardous or toxic waste |
| 12/06/1989 | EP0344283A1 Scrubber. |
| 12/06/1989 | CN2048781U High-efficient clarifier of waste gas |
| 12/06/1989 | CN2048780U Wind cowl-type smoke reducing duster directly installed on top of chimney |