| 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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| 04/04/1978 | US4082517 Cyclopentadienyl manganese antiknock |
| 04/04/1978 | US4082514 Catalytic converter for transforming polluting gases into non-polluting gases |
| 03/28/1978 | US4081522 Regeneration of sulfated metal oxides and carbonates |
| 03/28/1978 | US4081519 Process for oxidation of carbon monoxide with inorganic oxidizing agents |
| 03/28/1978 | US4081517 Oxidation to nitric acid |
| 03/28/1978 | US4081513 Disposal of sulfur oxide pollutant-containing gas |
| 03/28/1978 | US4081512 Acetylene and carbon dioxide by-product inhibition |
| 03/28/1978 | US4081511 Process for removing nitric oxides from processing exhaust gases |
| 03/28/1978 | US4081510 Titanium oxide and copper oxide catalyst |
| 03/28/1978 | US4081509 Transition metal complex |
| 03/28/1978 | US4081508 Process for reducing flue gas contaminants from fluid cracking catalyst regenerator |
| 03/28/1978 | US4081501 Process for producing odor absorbent and adsorbent air filter media |
| 03/21/1978 | US4080433 Passing carbon dioxide, nitrogen gas and water over a ceramic catalyst |
| 03/21/1978 | US4080428 Process for the purification of flue and other waste gas |
| 03/21/1978 | US4080427 Method of desulfurizing exhaust gases by wet lime-gypsum process |
| 03/21/1978 | US4080426 Reduction of nitric oxide using catalysts pretreated with selenium |
| 03/21/1978 | US4080425 Elimination of nitrogen oxides from exhaust gases with nitriles |
| 03/21/1978 | US4080424 Process for acid gas removal from gaseous mixtures |
| 03/21/1978 | US4080423 Gas absorption |
| 03/21/1978 | US4080296 Hollow fiber permeator |
| 03/21/1978 | US4080218 Method of removal of nitrogen oxides, particularly for use in cement raw material burning installation |
| 03/21/1978 | US4080186 Device for extracting energy, fresh water and pollution from moist air |
| 03/21/1978 | US4080174 Emission control system |
| 03/21/1978 | US4080103 Portable air compressor system for respirator |
| 03/14/1978 | US4079119 Sulfur dioxide removal process |
| 03/14/1978 | US4079118 Method for removing nitrogen oxides using ferricion-EDTA complex solutions |
| 03/14/1978 | US4079117 Absorption in alkanolamine solution |
| 03/14/1978 | US4078898 Catalyst-coated expanded metal foil substrate for an exhaust gas reactor |
| 03/14/1978 | US4078390 Removal and recovery of sulfur dioxide from stack gases |
| 03/14/1978 | US4078380 Internal combustion engine; iron, nickel, cobalt, copper, chromium, aluminum |
| 03/07/1978 | US4078048 Process and apparatus for removing sulfur from stack gases in the form of elemental sulfur |
| 03/07/1978 | US4078046 Process for the catalytic oxidation of carbon monoxide with sulfur dioxide and water |
| 03/07/1978 | US4078044 Process for the catalytic oxidation of ammonia and methane to hydrogen cyanide |
| 03/07/1978 | US4078041 Electrofluidized bed gas purification arrangement and method |
| 03/07/1978 | US4077913 Ruthenium-platinum alloy, oxidation/reduction |
| 03/07/1978 | US4077908 Exhaust system catalyst support |
| 03/07/1978 | US4077780 Recovery of hydrogen and nitrogen from ammonia plant purge gas |
| 03/07/1978 | US4077779 Hydrogen purification by selective adsorption |
| 03/07/1978 | US4077777 Neutralization of gases |
| 02/28/1978 | US4076793 Desulfurization of stack gas, manganese hydroxide adsorbent |
| 02/28/1978 | US4076792 Catalyst systems for the reduction of the oxides of nitrogen |
| 02/28/1978 | US4076621 Chelate oxidation of hydrogen sulfide in sour water |
| 02/28/1978 | US4076606 Method of decomposing nitrogen oxide (NOx) |
| 02/28/1978 | US4076504 Waste gas purification apparatus |
| 02/28/1978 | US4076486 Partial combustion, pollution control |
| 02/28/1978 | US4076057 Methods for filling filter cells with adsorbent material |
| 02/21/1978 | US4075306 Pretreating |
| 02/21/1978 | US4075298 Contact towers with leak-proof support of improved plate subassembly |
| 02/21/1978 | US4075293 Control system for an absorption column |
| 02/21/1978 | US4075283 Selective removal of nitrogen oxides from waste gases containing sulfur oxides |
| 02/21/1978 | US4075282 Removal of sulfur dioxide or hydrogen sulfide from gas stream |
| 02/21/1978 | US4075092 High surface area permeable material |
| 02/21/1978 | US4074984 Solvent-recovery system |
| 02/21/1978 | CA1026531A1 Sophisticated gas (i.e.) air decarbonation device |
| 02/14/1978 | US4073866 Process for converting nitrogen dioxide into nitrogen monoxide |
| 02/14/1978 | US4073865 Hydrophobic |
| 02/14/1978 | US4073864 Method of desulfurizing exhaust emission using pulverized slag as absorbent |
| 02/14/1978 | US4073863 Regeneration of absorbent solutions used for removing gaseous acid impurities from gaseous mixtures |
| 02/14/1978 | US4073862 Process for removing ammonia, hydrogen sulfide and hydrocyanic acid from gases |
| 02/14/1978 | US4073861 Method of using drying oils as oxygen scavenger |
| 02/14/1978 | US4073619 High transfer speed |
| 02/07/1978 | US4072678 Process for producing caprolactam |
| 02/07/1978 | US4072480 Dual impregnated activated carbon for improved removal of malodorous sulfur compounds |
| 02/07/1978 | US4072479 Such as hydrogen sulfide and methyl mercaptan, sodium hydroxide impregnant |
| 02/07/1978 | US4072471 Catalytic converter for removing noxious components from a gaseous stream |
| 02/07/1978 | CA1025637A1 method of reduction of nitrous vapors in nitrous gaseous effluents |
| 01/31/1978 | US4071609 Method for preparing particulate zinc oxide shapes of high surface area and improved strength |
| 01/31/1978 | US4071606 To produce sulfur |
| 01/31/1978 | US4071602 Selective separation of sulfur oxides from carbon dioxide in an effluent gas stream |
| 01/31/1978 | US4071601 Selective removal of nitrogen oxides from waste gases using V-Mo-W catalysts |
| 01/31/1978 | US4071600 Process for improved 3-way emission control |
| 01/31/1978 | US4071472 Catalyst for the purification of effluent gases containing oxides of nitrogen as impurity |
| 01/31/1978 | US4071470 Reaction product of monoalkanolamine with sulfur or a sulfide and oxidizing agent and copper or a copper salt |
| 01/31/1978 | US4071436 Process for removing sulphur from a gas |
| 01/31/1978 | US4071337 Filter unit having a constant rate purging cycle |
| 01/31/1978 | US4071336 Gas and vapor separator |
| 01/31/1978 | US4071335 Zr2 Ni as a getter metal and nuclear reactor fuel element employing such |
| 01/31/1978 | US4071322 Combustion of hydrocarbons |
| 01/31/1978 | US4071037 Preparation and method of use of enzyme effective for conversion and detection of carbon monoxide |
| 01/24/1978 | US4070445 Reduction of aqueous thiosulfate solutions |
| 01/24/1978 | US4070441 Method of removing sulfur dioxide from flue gases |
| 01/24/1978 | US4070440 Hematite iron oxide catalyst |
| 01/24/1978 | US4070305 Process for regenerating catalyst |
| 01/24/1978 | US4070300 Pourable solid filter material, particularly for the removal of unpleasant odors from the air, and a process for its manufacture |
| 01/24/1978 | US4070171 Apparatus for the separation of gas mixtures into component fractions according to their molecular or atomic weight |
| 01/24/1978 | US4070165 Pretreatment of raw natural gas prior to liquefaction |
| 01/24/1978 | US4070164 Adsorption-desorption pressure swing gas separation |
| 01/24/1978 | US4069665 Gas ionizing apparatus for improving the operation of an internal combustion engine |
| 01/24/1978 | CA1024904A1 Process for recovering sulphur from sulfuric compositions contained in gases |
| 01/17/1978 | US4069117 Cyclic, regenerative, multistep electrolysis of alkali metal chloride |
| 01/10/1978 | US4067894 Process for the production of granular metal-capturing agents for treating waste effluents containing heavy metals |
| 01/10/1978 | US4067707 Spray type wet scrubber |
| 01/03/1978 | US4066739 Process for recovering hydrogen and elemental sulfur from hydrogen sulfide and/or mercaptans-containing gases |
| 01/03/1978 | US4066553 Apparatus with supported tubular membranes for the treatment of fluids |
| 01/03/1978 | US4066423 Adsorption-absorption vapor recovery system |
| 01/03/1978 | US4065919 Mixing with air, straining through copper wire, sparking |
| 01/03/1978 | US4065918 Using baffles to prevent plugging of catalyst by cyclopentadienyl manganese antiknock component of gasoline |
| 01/03/1978 | CA1023671A1 Liquid fractioning throught hallow fibers located between a wound waterproof strip |
| 12/27/1977 | USRE29501 Deodorizer sheet material and insole |
| 12/27/1977 | US4065543 Catalytic oxidation of C2 -C4 halogenated hydrocarbons |