| 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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| 04/12/1977 | US4017592 Process for production of aqueous hypochlorous acid solution |
| 04/12/1977 | US4017586 Gravity flow through pebbles treated with catalyst |
| 04/12/1977 | US4017277 Direct contact water heating system and process |
| 04/12/1977 | US4017252 Method for the storage of a liquefied gas in the presence of an adsorbant support having open cells |
| 04/05/1977 | US4016242 Salts of the iodine oxyacids in the impregnation of adsorbent charcoal for trapping radioactive methyliodide |
| 04/05/1977 | US4016241 Aromatic hydrocarbon or olefin reducing agent and iridium catalyst |
| 04/05/1977 | US4016080 Fluid filter and purifying apparatus |
| 04/05/1977 | US4015997 Process for stabilizing aqueous coal sludges |
| 04/05/1977 | US4015959 In-line filter for gases |
| 04/05/1977 | US4015956 Process and arrangement for the enrichment of gases |
| 03/29/1977 | US4014981 Removal of sulfur from stack gases |
| 03/29/1977 | US4014978 Removing sulfur dioxide from flue gases |
| 03/29/1977 | US4014670 Hazard neutralizing container |
| 03/29/1977 | US4014666 Separation of gases |
| 03/29/1977 | US4014359 Sprinkler flow control systems |
| 03/22/1977 | US4013779 Process for removal of ammonia, hydrogen sulfide and hydrogen cyanide from gases containing these substances |
| 03/22/1977 | US4013588 Aluminum silicates |
| 03/22/1977 | US4013455 Method of and apparatus for treating a nonferrous metal |
| 03/22/1977 | US4013431 Partial or complete separation of gas mixtures, containing ammonia and carbon dioxide |
| 03/22/1977 | US4013430 Process for regenerating absorbing solution used for exhaust gas purification |
| 03/22/1977 | US4013429 Fractionation of air by adsorption |
| 03/22/1977 | US4013399 Reduction of gaseous pollutants in combustion flue gas |
| 03/15/1977 | US4012488 Process for the treatment of sulfur and nitrogen oxides formed during power generation |
| 03/15/1977 | US4012487 Continuous processing, sulfur dioxide |
| 03/15/1977 | US4012486 Process for reducing the total sulfur content of Claus off-gases |
| 03/15/1977 | US4012485 Process for treating exhaust gas from internal combustion engine over catalyst comprising nickel, rhodium, and monolithic ceramic support |
| 03/15/1977 | US4012339 Molding, calcining |
| 03/15/1977 | US4012335 Process for removing intermittent organic compounds from gaseous streams |
| 03/15/1977 | US4012206 Air cleaning adsorption process |
| 03/15/1977 | US4011651 Fibre masses |
| 03/08/1977 | US4011299 Calcium and magnesium oxide, reducing gases, forming 2a sulfides |
| 03/08/1977 | US4011298 Sulfur and nitrogen oxides |
| 03/08/1977 | US4011066 Flashing the scrubbing agent |
| 03/08/1977 | US4011065 Process for the enrichment of gases |
| 03/01/1977 | US4010238 Vanadium oxide catalyst, ammonia |
| 03/01/1977 | US4010017 Recovery of hydrogen chloride from chlorinated hydrocarbons such as chloromethanes |
| 03/01/1977 | US4010014 Fluid filter with submerged passages |
| 03/01/1977 | US4010009 Stripping water |
| 02/22/1977 | US4009251 Process for the removal of hydrogen sulfide from gaseous streams by catalytic oxidation of hydrogen sulfide to sulfur while inhibiting the formation of sulfur oxides |
| 02/22/1977 | US4009244 Process for removing oxides of nitrogen and sulfur from exhaust gases |
| 02/22/1977 | US4009243 Continuous process for scrubbing out hydrogen sulfide and ammonia from coke oven gas |
| 02/22/1977 | US4009242 Metal oxyhalide catalyzed reactions |
| 02/22/1977 | US4009241 Method of removing mercury vapor from gases contaminated therewith |
| 02/22/1977 | US4009240 Method and apparatus for purifying blister furnace effluent |
| 02/22/1977 | US4009214 Contacting with calcium chloride on activated alumina |
| 02/22/1977 | US4009126 Zinc ferrite, nickel carbonate, sodium hydroxide |
| 02/22/1977 | US4009083 Regeneration of liquid desiccants and acid gas absorbing liquid desiccants |
| 02/22/1977 | US4009080 Deoxidation, oxidation catalyst |
| 02/22/1977 | US4009009 Process for reducing the COS content of gaseous hydrocarbon streams by use of supported lead oxide |
| 02/15/1977 | US4008310 Regenerative sulfur dioxide scrubbing system |
| 02/15/1977 | US4008289 Adsorbent treating method |
| 02/15/1977 | US4008274 Antifouling |
| 02/15/1977 | US4008174 Process for regenerating a solid copper-chromium reactant used in the removal of hydrogen sulfide from hydrogen recycle gas |
| 02/15/1977 | US4008058 Apparatus for regenerating a drying agent in driers for gases or air under positive pressure |
| 02/15/1977 | US4008047 Blood compatible polymers for blood oxygenation devices |
| 02/15/1977 | US4008037 Compositions and methods for high temperature stable catalysts |
| 02/15/1977 | US4007539 Method of clamping a lattice-like ceramic structure body |
| 02/08/1977 | US4007129 Partial combustion process for manufacturing a purified gas containing hydrogen and carbon monoxide |
| 02/08/1977 | US4007021 Method of and device for drying compressed gases, especially compressed air for brake systems in motor vehicles |
| 02/01/1977 | US4006105 NOx reduction catalyst for internal combustion engine emission control |
| 02/01/1977 | US4006103 Catalyst for treating exhaust gas from internal combustion engine |
| 02/01/1977 | US4006102 Deposited on a refractory oxide, ceramic substrate |
| 02/01/1977 | US4006066 Method of and apparatus for the treatment of exhaust-gases in the electrolytic production of aluminum |
| 02/01/1977 | US4005997 Increasing dew point depression |
| 01/25/1977 | US4005177 Catalytic treatment of automotive exhaust gas |
| 01/25/1977 | US4005017 Contacting apparatus |
| 01/25/1977 | US4004995 Process for removing nitrogen oxides and sulfur dioxide from effluent gases |
| 01/25/1977 | US4004993 Nitric acid, cobalt catalyst |
| 01/25/1977 | US4004966 Combustion, flue gas, absorption, ammonia, ammonium monosulfite-bisulfite |
| 01/25/1977 | US4004965 Vertical flameless reboiler for reconcentrating liquid desiccant |
| 01/25/1977 | US4004885 Removal of sulfur oxides and particulate matter from waste gas streams |
| 01/18/1977 | US4003987 Oxidation of flue gas; entrainment with carbon monoxide and sulfuric acid |
| 01/18/1977 | US4003986 Process for producing sulfur from sulfur dioxide or ammonium sulfites |
| 01/18/1977 | US4003979 Method of cleaning air containing carbon monoxide |
| 01/18/1977 | US4003978 Catalytic oxidation of ammonia to nitrogen; chromium catalyst |
| 01/18/1977 | US4003977 Removal of tetranitromethane from TNT plant waste gases |
| 01/18/1977 | US4003976 Multilayer oxidation catalysts, metal oxides |
| 01/18/1977 | US4003854 Catalyst of supported vanadium oxide and manganese oxide and method of producing same |
| 01/18/1977 | US4003850 Absorbing iron pentacarbonyl, oxidation |
| 01/18/1977 | US4003848 With a poly-n-glycidyl piperazine |
| 01/18/1977 | US4003725 Apparatus for purifying hydrogen gas |
| 01/18/1977 | US4003724 Foam scrubber and method |
| 01/18/1977 | US4003722 Process and arrangement for the removal of impurities from gases |
| 01/18/1977 | US4003711 Apparatus for elimination of nitrogen oxides from combustion waste gases |
| 01/11/1977 | US4002727 Desulfurization process for hydrogen sulfide-containing gases |
| 01/11/1977 | US4002724 Sulfur dioxide collection |
| 01/11/1977 | US4002723 Ammonia used as a reducing agent |
| 01/11/1977 | US4002722 Ferrous salt and hydrogen peroxide with an absorbent solution |
| 01/11/1977 | US4002721 Process improvement in the absorption of acid gas from a feed gas |
| 01/11/1977 | US4002720 Cyclic removal of acidic gases by contacting with a presteamed inorganic oxide support and a rare earth metal |
| 01/11/1977 | US4002691 Polycyclic compounds |
| 01/11/1977 | US4002565 Waste-water process |
| 01/11/1977 | US4002444 Vertical separator |
| 01/04/1977 | US4001386 Hydrogen sulfide |
| 01/04/1977 | US4001384 Process for recovery of oxides of sulfur from combustion waste gas |
| 01/04/1977 | US4001375 Cerium oxide sorbent |
| 01/04/1977 | US4001374 Process for removing ammonia from gases |
| 01/04/1977 | US4001373 Removal of tetranitromethane from tnt plant waste |
| 01/04/1977 | US4001372 Removing oxides of nitrogen from gaseous mixtures with alkali manganate solutions |
| 01/04/1977 | US4001371 Catalytic process |