| 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) |
|---|
| 07/26/1977 | US4038050 Electrical sensing and regenerating system for molecular sieve driers |
| 07/19/1977 | US4036943 Process for removing sulfur dioxide from a gas and producing sulfur therefrom |
| 07/19/1977 | US4036942 Process for the removal of hydrogen sulfide and mercaptans from liquid and gaseous streams |
| 07/19/1977 | US4036940 Copper and chromium oxides on alumina, adsorption |
| 07/19/1977 | US4036928 Process for pelletizing sorptive mineral fines |
| 07/19/1977 | US4036785 Treating ferrous oxide-containing titanium slag with sulfuric acid, calcining |
| 07/19/1977 | US4036776 From multivalent metal chlorides; hydrogen chloride recycle |
| 07/19/1977 | US4036615 Mist separator |
| 07/19/1977 | US4036593 Pollution control |
| 07/12/1977 | US4035473 Method of removing acetylene from anhydrous-hydrogen chloride |
| 07/12/1977 | US4035470 Process for removing sulfur oxides and/or nitrogen oxides from waste gas |
| 07/12/1977 | US4035301 System for pollution suppression |
| 07/12/1977 | US4035263 Nickel and copper oxides on a refractory support |
| 07/12/1977 | US4035168 Glass beads, glass wool |
| 07/12/1977 | US4035167 Cyclohexane, cyclohexene, 1-chlorobutane, 1,1,1-trichloroethane |
| 07/12/1977 | US4035166 Flashing |
| 07/12/1977 | US4035158 Process and apparatus for burning hydrogen sulfide and other combustible fluid to recover sulfur |
| 07/05/1977 | US4034065 Monovalent copper cations from bivalent cations by reaction with water |
| 07/05/1977 | US4034063 Process for control of SOx emissions from copper smelter operations |
| 07/05/1977 | US4034062 Removal of oxygen from gas stream with copper catalyst |
| 07/05/1977 | US4034061 Aluminum borate catalyst compositions and use thereof in chemical conversions |
| 07/05/1977 | US4034060 Exhaust gas purifying catalyst and process of making and using same |
| 07/05/1977 | US4033880 Filter device |
| 07/05/1977 | US4033725 Apparatus for NOx control using steam-hydrocarbon injection |
| 07/05/1977 | US4033410 Monoethanolamine process for sulfur removal from circulating oil used in sour gas wells |
| 07/05/1977 | US4033371 Proportioning valve for volumetric proportioning of flow |
| 06/28/1977 | US4032617 Bis(3,5-difluorosalicylaldehyde)ethylenediimine-Co+2 compound and use |
| 06/28/1977 | US4032421 Cleaning of flue gas apparatus |
| 06/21/1977 | US4031195 Regenerative method removal of sulfur dioxide from stack gases |
| 06/21/1977 | US4031185 Nitrogen oxides, ammonia, catalyst |
| 06/21/1977 | US4031149 Low temperature catalytic combustion of chlorohydrocarbons |
| 06/21/1977 | US4030896 Fractionation of air |
| 06/21/1977 | US4030639 Charcoal adsorber filter fill system |
| 06/14/1977 | US4029752 Using ammonia as reducing agent |
| 06/14/1977 | US4029739 Process for removing nitrogen oxides from waste gas |
| 06/14/1977 | US4029738 Decomposing nitrogen oxides with nickel-iron-chromium catalysts |
| 06/14/1977 | US4029714 Chlorine elimination processcatalyst of iron and ferric chloride to chlorinate hydrocarbon |
| 06/14/1977 | US4029636 Method for reducing molybdenum trioxide content of gases issuing from reactors containing molybdenum-based catalysts |
| 06/14/1977 | US4029486 Pneumatic compactor for particulate desiccant |
| 06/14/1977 | US4029484 Mist scrubbing of waste halide effluent |
| 06/14/1977 | US4029483 Removal of carbon dioxide |
| 06/07/1977 | US4028275 Platinum group metal, organic nitrogen or phosphorus compound |
| 06/07/1977 | US4028075 Fuel tank cap |
| 06/07/1977 | US4028072 Apparatus for scrubbing of hydrocarbons from gas |
| 06/07/1977 | US4028069 Purification and drying of hydrocarbon streams with adsorbents |
| 06/07/1977 | US4027729 Device for chill-drying a gas |
| 05/31/1977 | US4027002 Hydrogen sulphide removal process |
| 05/31/1977 | US4026992 Reduction, metal oxide catalyst, ammonia |
| 05/31/1977 | US4026685 Flow reversing regenerative air dryer |
| 05/31/1977 | US4026681 Gas dehydrator process |
| 05/31/1977 | US4026680 Air separation by adsorption |
| 05/24/1977 | US4025606 Catalysis |
| 05/24/1977 | US4025605 Adsorption-desorption |
| 05/24/1977 | US4025604 Iron oxide catalyst |
| 05/24/1977 | US4025603 Using calcium sulfate and calcium hydroxide with a sodium chlorite oxidizer |
| 05/24/1977 | US4025325 Portable ventilating air filtering device for toilets |
| 05/24/1977 | US4025324 Hydrocarbon vapor control unit and system |
| 05/24/1977 | US4025322 Removal of hydrocarbons and water from acid gas streams |
| 05/24/1977 | US4025321 Fixed bed of activated zeolite molecular seive counter-currently purged with oxygen depleted hydrocarbon gas |
| 05/17/1977 | US4024220 Flue gas scrubbing and conversion of calcium sulfite to calcium sulfate |
| 05/17/1977 | US4024219 Nitric acid in an oxidation column in a porous absorbing agent; nitrogen dioxide |
| 05/17/1977 | US4024079 Method of preparing a catalyst for treatment of exhaust gases |
| 05/17/1977 | US4023960 Process for cleaning waste gases from sintering plants |
| 05/17/1977 | US4023940 Regeneration cycle control for industrial air dryer |
| 05/17/1977 | US4023939 Method and arrangement for purifying gases |
| 05/17/1977 | US4023938 Process for dehydrating gas with sulfuric acid |
| 05/17/1977 | US4023361 Catalyst for controlling poisonous exhaust gas |
| 05/10/1977 | US4022870 Catalytic process for removing sulfur dioxide from gas streams |
| 05/10/1977 | US4022869 Method for removing hydrogen chloride from exhaust gas containing same |
| 05/10/1977 | US4022593 Mist elimination |
| 05/10/1977 | US4022581 High pressure gas reactions, acid-soluble metal oxides |
| 05/03/1977 | US4021382 Method for the preparation of hydrophilic spongy gels |
| 05/03/1977 | US4021372 Catalyst for reducing oxides of nitrogen in the exhaust gas from internal combustion engines and process for making the catalyst |
| 05/03/1977 | US4021211 Active carbon |
| 05/03/1977 | US4021210 Separating gaseous mixtures, silica gel or activated carbon |
| 05/03/1977 | US4021203 Catalytic converter for purifying gases |
| 05/03/1977 | US4021202 Apparatus for removing sulfur dioxide from stack gases |
| 05/03/1977 | US4021185 Oxidation of carbonaceous fuels |
| 05/03/1977 | US4021134 Extrusion die and cutting tool for machining such a die |
| 04/26/1977 | US4020149 Reacting hydrogen sulfide and sulfur dioxide in a disulfide solvent |
| 04/26/1977 | US4020144 Method for removal of gaseous sulfur and nitrogen compounds from gas streams |
| 04/26/1977 | US4020117 Adsorptive recovery system for methyl chloride and methylene chloride |
| 04/26/1977 | US4020013 Catalytic composite for treating exhaust gases from an internal combustion engine |
| 04/26/1977 | US4019896 Trash disposal system |
| 04/26/1977 | US4019882 Stack gas clarifier |
| 04/26/1977 | US4019881 Moisture separator for a nuclear steam turbine |
| 04/26/1977 | US4019880 Adsorption of carbon monoxide using silver zeolites |
| 04/26/1977 | US4019879 Selective adsorption of carbon monoxide from gas streams |
| 04/26/1977 | US4019870 Air pollution control of oxides of nitrogen |
| 04/26/1977 | US4019850 Method for the storage of liquefied gas in the presence of a fibrous adsorbant support |
| 04/26/1977 | US4019444 Method of and apparatus for incinerating refuse |
| 04/19/1977 | US4018879 Corrosion prevention |
| 04/19/1977 | US4018868 Thermal crushing of alkali compounds in the removal of sulfur dioxides from a flue gas |
| 04/19/1977 | US4018721 Cross-linked, water insoluble poly(N-glycidyl-piperazine) |
| 04/19/1977 | US4018710 Reduction catalysts and processes for reduction of nitrogen oxides |
| 04/19/1977 | US4018706 Heavy-noble metals on titanium-phosphorus oxides |
| 04/19/1977 | US4018704 On active carbon; contacting with alcohols and chlorinated methane |
| 04/19/1977 | US4018678 Method of and apparatus for fluid filtration and the like with the aid of chitosan |
| 04/19/1977 | US4018579 Apparatus for producing dry compressed air |
| 04/19/1977 | US4018568 Fume absorbing-treating system |