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| Number | Title | Issue Date |
| 7052661 | Method for abatement of mercury emissions from combustion gases A process for removing mercury from a feed of coal, heavy oil or other mercury contaminated material is disclosed. The feed is thermally decomposed, preferably within, or above, a molten metal bath under reducing conditions, to produce a vapor product and non-vapor ... | 05/30/2006 |
| 7033547 | Exhaust gas treating apparatus and vehicle equipped with the apparatus An exhaust gas treating an apparatus and a vehicle vehicles equipped with the apparatus, wherein a liquid-including substance having salt including oxygen acid radical of nitrogen is installed in an exhaust gas passage to treat exhaust gas having carbon-containing p... | 04/25/2006 |
| 7001573 | Process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene By a process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene, is intended to permit specific control of the amount of fine dust particles in a reactor while reducing the height of the reactor and the same time f... | 02/21/2006 |
| 6929786 | Method for separating zirconium and hafnium tetrachlorides with the aid of a melted solvent A method of separating zirconium and hafnium tetrachlorides using a solvent comprising firstly an alkaline metallic solvent comprising a salt made up of an alkali metal chloride and an acidic metal chloride A, for example a chloroaluminate or an alkaline chloroferra... | 08/16/2005 |
| 6855302 | Method for emission control of dioxin and/or furan waste gas pollutants in a cement clinker production line In order to provide a comparatively simple and cost-effective method for cement clinker production lines where especially raw materials and/or fuel/secondary fuel containing chlorine compounds and a partial gas extraction with an electrostatic dust collector as wast... | 02/15/2005 |
| 6214305 | Method and apparatus for the treatment of diesel exhaust gas A method and apparatus for the oxidation of liquid or solid contaminants in the exhaust gas from diesel engines is provided. The process is conducted by passing the contaminated diesel engine exhaust gas through a turbulent gas flow, particulate separator... | 04/10/2001 |
| 6110435 | Method and device for nitric oxide reduction in exhaust fumes A process for reducing nitrogen oxides in the exhaust gas of a combustion device, particularly of an internal-combustion engine, includes melting solid pure urea to obtain a molten product, and adding the molten product to the exhaust gas as the reducing ... | 08/29/2000 |
| 5866095 | Method and system of formation and oxidation of dissolved atomic constitutents in a molten bath A method and system is disclosed for converting a feed, such as a carbonaceous waste, to dissolved atomic constituents for subsequent oxidation of the dissolved atomic constituents. The feed is injected into a molten bath which, at a sufficient temperatur... | 02/02/1999 |
| 5762659 | Waste processing A process for atomically converting gaseous waste materials into nonhazardous forms and a medium BTU gas is described. The reactor includes molten layers of iron and reactive slag in an upwardly flowing reactor operated under oxygen lean conditions.... | 06/09/1998 |
| 5716592 | Cerous chloride-chromic oxide catalyst for producing chlorine, methods for producing the same and a method for producing chlorine A process for producing chlorine by reaction of gaseous hydrogen chloride with oxygen in the presence of a catalyst prepared by reaction of chromium trioxide and cerous chloride with ethanol and calcination of the resulting reaction product, or, alternati... | 02/10/1998 |
| 5585532 | Method for treating a gas formed from a waste in a molten metal bath A method and a system is disclosed for treating a gaseous discharge stream formed from a waste in a molten metal bath. The waste is directed into a reactor containing a molten metal bath. The molten metal bath has operating conditions which are sufficient... | 12/17/1996 |
| 5498399 | Process for removing nitrogen oxides Disclosed herein are an inexpensive catalyst for removing nitrogen oxides effectively from an exhaust gas by either catalytic reduction or catalytic decomposition, and a process for removing nitrogen oxides from an exhaust gas by the aid of said catalyst.... | 03/12/1996 |
| 5455015 | Method for the removal of sulfur and nitrogen oxides from gases using sulfate and hydrogen sulfate salt baths Sulfur oxides are removed from a gas containing same by contacting the gas with a system including ammonium, potassium, and/or sodium salts in a solid phase and ammonium, sodium, and/or potassium hydrogen sulfate in a liquid phase. The sulfur oxides react... | 10/03/1995 |
| 5385689 | Process and composition for purifying semiconductor process gases to remove Lewis acid and oxidant impurities therefrom Scavenger compositions useful for purifying process gas streams, such as process gas streams, such as hydrogen, nitrogen, noble gases, diborane, and hydride gases from Groups IVA-VIA of the Periodic Table, such as arsine, phosphine, silane, germane, hydro... | 01/31/1995 |
| 5376354 | Process for disposal of waste by combustion with oxygen A process for the disposal of refuse is characterized by combustion of combustible, solid, pasty or liquid waste materials in a combustion plant with a combustion gas containing at least 50% oxygen. Combustible waste materials are burned in the presence o... | 12/27/1994 |
| 5338521 | Process for reversibly absorbing acid gases from gaseous mixtures A process is disclosed for reversibly absorbing acid gases from gaseous mixtures wherein a salt hydrate is heated to a temperature above its melting point and exposed to an acid gas which is absorbed by the salt hydrate to form a salt hydrate melt. This m... | 08/16/1994 |
| 5226934 | Recovery of elemental sulfur from gases A process for the separation of elemental sulfur from a gas comprises contacting the gas with molten sulfur whereby to extract the sulfur from the gas.... | 07/13/1993 |
| 5191154 | Method and system for controlling chemical reaction in a molten bath A method and a system is disclosed for controlling chemical reaction of a feed. The feed is directed into a reactor containing a molten bath to at least partially chemically react the feed to form an intermediate component. A portion of the intermediate c... | 03/02/1993 |
| 5114690 | Two stage sorption of sulfur compounds A two stage method for reducing the sulfur content of exhaust gases is disclosed. Alkali- or alkaline-earth-based sorbent is totally or partially vaporized and introduced into a sulfur-containing gas stream. The activated sorbent can be introduced in the ... | 05/19/1992 |
| 4973456 | Use of salt hydrates as reversible absorbents of acid gases The present invention is a process for reversibly absorbing acid gases, such as CO2, H2 S, SO2, HCN and the like from gas mixtures. The gas mixture containing one or more of these acid gases is contacted with a hydrated sa... | 11/27/1990 |
| 4944934 | High temperature oxygen recovery with reversible chemical reaction Separation of oxygen from air is performed in a continuous, cyclic manner using vanadium bronze liquid slurries as reversible chemical absorbents, absorbing at elevated temperature and desorbing at lowered temperature.... | 07/31/1990 |
| 4800070 | Catalysts for absorptive air separation The present invention is directed to catalysts for the absorptive separation of oxygen from oxygen-containing gas mixtures, such as air, using reversible chemical reaction systems, such as, ##STR1## The catalytic action is the result of the addition ... | 01/24/1989 |
| 4780114 | Molten salt hydrate membranes for the separation of gases The present invention is a membrane and a process for separating at least one component from at least one other component in a gas mixture. A gaseous mixture is passed over a membrane having a thin film of a molten salt hydrate which is selectively permea... | 10/25/1988 |
| 4746502 | Liquid phase thermal swing chemical air separation A temperature swing absorption separation of oxygen from air is performed with an oxygen acceptor of alkali metal nitrate and nitrite.... | 05/24/1988 |
| 4708860 | Split-flow regeneration in absorptive air separation A chemical absorptive separation of air in multiple stage of absorption and desorption is performed with partial recycle of absorbent between stages of desorption necessary to match equilibrium conditions in the various stages of absorption. This allows r... | 11/24/1987 |
| 4666696 | Destruction of nerve gases and other cholinesterase inhibitors by molten metal reduction Cholinesterase inhibiting agents such as nerve gas agents and pesticide agents are destroyed by reaction with molten aluminum and the gaseous products are analyzed and recycled if they are not essentially free of such agents.... | 05/19/1987 |
| 4617182 | Cascade heat recovery with coproduct gas production A process for the integration of a chemical absorption separation of oxygen and nitrogen from air with a combustion process is set forth wherein excess temperature availability from the combustion process is more effectively utilized to desorb oxygen prod... | 10/14/1986 |
| 4617046 | Method for the heat processing of glass and glass forming material A method of controlling NOx emissions from a combustion chamber wherein non-combustable particulate matter is heat processed. The particulate matter to be heat processed is entrained and dispersed in the products of combustion as a dispersed he... | 10/14/1986 |
| 4617029 | Method for gas separation A process for separating a gas from a mixture of gases comprises passing the gas mixture over a membrane, selectively permeable by the gas being separated, owing to the occurrence of one or more reversible oxidation-reduction reactions between a continuou... | 10/14/1986 |
| 4565685 | Air separation with temperature and pressure swing A chemical absorbent air separation process is set forth which uses a temperature swing absorption-desorption cycle in combination with a pressure swing wherein the pressure is elevated in the desorption stage of the process.... | 01/21/1986 |
| 4564509 | Method and apparatus for improved gettering for reactant gases A method of removing oxygen and water vapor and other oxygen bearing gas species from reactant gases comprising the use of an appropriate solution containing an active gettering metal, selected from the group of aluminum, magnesium, calcium and lithium in... | 01/14/1986 |
| 4552667 | Destruction of organic hazardous wastes Hazardous waste containing organic compound having covalently bound oxygen, nitrogen, sulfur and/or phosphorus is reduced with aluminum to less hazardous form.... | 11/12/1985 |
| 4537835 | Oxidation of hydrogen halides to elemental halogens A process for oxidizing hydrogen halides having substantially no sulfur impurities by means of a catalytically active molten salt is disclosed. A mixture of the subject hydrogen halide and an oxygen bearing gas is contacted with a molten salt containing a... | 08/27/1985 |
| 4529577 | Oxygen/nitrogen production with molten alkali salts Method of separating oxygen or nitrogen from air using as an oxygen acceptor composition a molten solution of alkali metal salt of a cation composition of sodium and potassium cations and an anion composition of 50 to 94% nitrate, 4 to 25% nitrite and com... | 07/16/1985 |
| 4526768 | Process for producing sulphuric acid In a process for producing sulphuric acid from roasting gas containing SO2, H2 O and Hg, comprising the steps of (a) drying the gas with H2 SO4 (b) subjecting the gas to a catalytic oxidation treatment so as to produce ... | 07/02/1985 |
| 4525212 | Decontamination of aluminum by chlorination Decontaminating an aluminum melt by chlorination wherein the melt is blanketed with a layer of molten flux containing calcium oxide to consume any Cl2 and/or AlCl3 offgasses from the melt.... | 06/25/1985 |
| 4521398 | Controlled temperature expansion in oxygen production by molten alkali metal salts A continuous process is set forth for the production of oxygen from an oxygen containing gas stream, such as air, by contacting a feed gas stream with a molten solution of an oxygen acceptor to oxidize the acceptor and cyclically regenerating the oxidized... | 06/04/1985 |
| 4478801 | Method for purifying exhaust gases with hydrogensulfates A process for purifying exhaust gases is disclosed. Exhaust gases discharged when coal or petroleum is burned are forced to pass through reaction media consisting of molten salts whose major component is a hydrogensulfate or hydrogensulfates, whereby desu... | 10/23/1984 |
| 4477373 | Molten salt hazardous waste disposal process utilizing gas/liquid contact for salt recovery The products of a molten salt combustion of hazardous wastes are converted into a cooled gas, which can be filtered to remove hazardous particulate material, and a dry flowable mixture of salts, which can be recycled for use in the molten salt combustion,... | 10/16/1984 |
| 4470958 | Composition and process for the removal of impurities from combustion gases A low melting, eutectic melt salt composition comprising Li2 CO3, Na2 CO3 and K2 CO3, also containing MnCO3, is disclosed including its use as a melt in the process for the removal of... | 09/11/1984 |
