| Patents for B01D 47 - Separating dispersed particles from gases, air or vapours by liquid as separating agent (12,036) |
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| 03/18/1992 | CN2099107U Automatic controled device for belt sprinkler |
| 03/11/1992 | CN2098323U Water seal duster |
| 03/05/1992 | DE4113108A1 Process for removal of dust or liq. aerosols from gas stream - by high pressure co-current spraying particulates in 1st flow channel and subsequent disentrainment and absorption with scrubbing liq. etc. |
| 02/26/1992 | CN2097030U Filter-film cleaning duster |
| 02/26/1992 | CN2097029U Compound wet dust collector |
| 02/19/1992 | CN2096404U Self excitation deflection scrubber |
| 02/11/1992 | CA2048878A1 Method and mechanism for the supersonic separation of droplets from a gas stream |
| 02/05/1992 | CN1058352A Apparatus for preventing air from being polluted |
| 02/04/1992 | US5085678 Exhaust gases and particulate capture system |
| 02/04/1992 | CA2022674A1 Air-cleaning apparatus |
| 01/29/1992 | CN2094685U High-efficient smoke-eliminating burner for coal-throw machine boiler |
| 01/22/1992 | CN2093691U High-efficient automatic slag-dust removing apparatus |
| 01/14/1992 | WO1992000792A1 Method and device for purifying air |
| 01/14/1992 | CA2086927A1 Method and device for purifying air |
| 01/14/1992 | CA1294211C Scrubber |
| 01/08/1992 | CN2092676U Waterfilm filter for smoke in tubing |
| 01/07/1992 | US5078759 Broken up into multitude of bubbles by atomizer below liquid level |
| 01/01/1992 | CN1057403A Device for abatement of smoke and dust |
| 12/31/1991 | US5077024 Method and apparatus for wetting the particles contained in a gas flow |
| 12/31/1991 | US5076939 Adjusting alkalinity, adding alumina-coated silica and polymeric flocculant; automobiles |
| 12/31/1991 | US5076818 Gas cleaning methods and apparatus |
| 12/29/1991 | WO1992000135A1 Gas cleaning methods and apparatus |
| 12/29/1991 | CA2086339A1 Gas cleaning methods and apparatus |
| 12/27/1991 | EP0462781A2 Method for desulphurizing exhaust smoke |
| 12/25/1991 | CN1057214A Ash-water separating dust remover |
| 12/18/1991 | CN2090724U Air purifier by magnetizing spray |
| 12/18/1991 | CN2090723U Flushing, spraying water film type boiler duster |
| 12/11/1991 | EP0460115A1 A system and a process for the purification treatment of smokes, dusts and exhaust gases after combustion |
| 12/11/1991 | CN2090285U Full-enclosed overflow device for water-film type flue gas duster |
| 12/11/1991 | CN1056824A Purification process for waste mixture of dust, acid vapour and acid gas |
| 12/10/1991 | CA1292941C Purification system |
| 11/26/1991 | US5067974 Apparatus for purifying pollutant gases |
| 11/26/1991 | CA1292426C Method for cleansing gas and apparatus herefor (i) |
| 11/24/1991 | CA2042991A1 Recirculating water washer means and method |
| 11/21/1991 | EP0456797A1 Process for treating gases. |
| 11/21/1991 | EP0376971B1 Process and installation for recovering reusable gas from waste through pyrolysis |
| 11/13/1991 | CN2088451U Dust removing device by water for pitch concrete stirrer |
| 11/12/1991 | US5064450 Double wall forming an annulus |
| 11/07/1991 | DE4019191A1 Plant for disposal of waste gases - combines chimney stack on top of lime washing appts. within single vertical structure |
| 11/05/1991 | US5063034 Process for purifying by the wet method fumes containing nitrogen oxides |
| 10/30/1991 | CN2087531U Purifying device for smoke dust |
| 10/29/1991 | US5061408 Apparatus for mass transfer between a hot gas stream and a liquid |
| 10/29/1991 | US5061299 Air/gas/micro partical pollution control system |
| 10/24/1991 | DE4115090A1 Determining optimal pump dimensions and parameters - for designing liq. jet gas pumps, jet scrubbers and Venturi scrubbers |
| 10/16/1991 | CN2086870U Cooking fume extractor for kitchen |
| 10/12/1991 | WO1991015283A1 Wet blaster/wet washer |
| 10/12/1991 | CA2055505A1 Wet blaster/wet washer |
| 09/25/1991 | CN2085253U Waste-gas scrubbing device with rotary sprayer |
| 09/24/1991 | CA1289462C Gas reacting apparatus and method |
| 09/18/1991 | CN2085028U Efficient smoke-reducing scrubber for boiler wit coal throwing machine |
| 09/11/1991 | CN2084387U Shower smog elimitation dust-removing device |
| 09/04/1991 | CN2083953U Smoke eliminating and desulfuring duster for low resistance kiln |
| 09/01/1991 | CA2011258A1 Apparatus for pollution control treatment of warmed smokestack output |
| 08/21/1991 | CN2083067U Liquid film sheeting dust-remover with brushes |
| 08/21/1991 | CN1013610B Transition duct for centrifugal fan |
| 08/20/1991 | US5041146 Filter apparatus |
| 08/13/1991 | US5039319 Processes and apparatuses for removing organochemical components |
| 08/13/1991 | US5039315 Method and apparatus for separating particulates from a gas stream |
| 08/07/1991 | CN2082191U Washing and dust removing device |
| 08/01/1991 | DE4013518C1 Air cleaning plant - includes fan at inlet of supply duct from which contaminated air passes through ring nozzle in duct |
| 07/23/1991 | US5034038 Separator for vacuum pump loading system |
| 07/11/1991 | WO1991009663A1 A system and a process for the purification treatment of smokes, dusts and exhaust gases after combustion |
| 07/04/1991 | DE4000049A1 Device for cleaning the air from spray painting booths - the air is passed through a chamber fitted with water sprays, brushes and deflector plates to provide an effective removal of paint droplets |
| 07/03/1991 | CN1013026B Filter with boiler-shaped filtering elements |
| 06/26/1991 | EP0433617A1 Process for producing a venturi for a venturi washer and the venturi washer |
| 06/26/1991 | CN2079527U Energy saving type duster with steam spray cleaning |
| 06/19/1991 | EP0432538A1 Hydrodynamic fume scrubber |
| 06/19/1991 | CN1052260A Desulphurization method for smoke or tail gas containing sulphur |
| 06/18/1991 | US5024686 Recycle spray gas-liquid contactor |
| 06/12/1991 | EP0431429A2 Process and composition used to reclaim paint from spray booth with a flood sheet system |
| 06/12/1991 | CN2078648U Combined venturi scrubber |
| 06/11/1991 | US5022896 Injecting into whirling solution radially, creating bubbles, absorption, venting |
| 06/06/1991 | WO1991008048A1 Process for treating gases, ellipsoidal packing-material granules and their use in the process |
| 06/06/1991 | CA2046611A1 Process for treating gases, ellipsoidal packing material granules and their use in the process |
| 06/05/1991 | EP0429942A2 Apparatus for material exchange between a current of hot gas and a liquid |
| 06/05/1991 | CN2078194U Washing dust remover |
| 06/04/1991 | US5021136 Apparatus and method for removing liquid from liquid bearing material |
| 06/04/1991 | US5020470 Wet scrubber apparatus and paint spraybooth in combination with wet scrubber apparatus |
| 05/29/1991 | CN2077746U High efficiency soak type water saving dust remover |
| 05/26/1991 | CA2030584A1 Apparatus for mass transfer between a hot gas stream and a liquid |
| 05/21/1991 | US5017203 Gas scrubbing apparatus and process |
| 05/21/1991 | US5017201 Tank type liquid air cleaner |
| 05/15/1991 | EP0427095A2 Air purifier |
| 05/15/1991 | EP0427089A2 Laboratory apparatus for the separation of substances from gas samples |
| 05/07/1991 | CA1283875C Method and device for purifying off-gases |
| 04/30/1991 | US5011520 Hydrodynamic fume scrubber |
| 04/30/1991 | US5011517 Sampler for chemical vapors |
| 04/24/1991 | CN2075746U Centrifugal dust washing machine |
| 04/17/1991 | EP0422337A2 Process and device for wet purification of gases especially of flue gases |
| 04/10/1991 | CN2074865U Water circulation type boiler dust removing device |
| 03/13/1991 | CN2072865U Atomizing spray gun with high pressure and reverse flow |
| 03/13/1991 | CN2072864U Self-cleaning shower dust remover |
| 03/13/1991 | CN1049797A Screen net spraying dedusting device |
| 03/06/1991 | EP0415511A1 Air cleaning apparatus |
| 03/06/1991 | CN2072431U Dry damp multi-bending passage duster |
| 03/06/1991 | CN1049616A Method and equipment for purification of industrial flue gases |
| 03/01/1991 | CA2021060A1 Wet scrubber apparatus and paint spraybooth in combination with wet scrubber apparatus |
| 02/27/1991 | CN2071982U Venturi impact and wet type scrubber |
| 02/21/1991 | WO1991001794A1 Process for removing volatile organic compounds from air streams |
| 02/21/1991 | WO1991001784A1 Method and apparatus for separation processes |