Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7364711 | Method for removing NO during the production of nitric acid N2O is removed in nitric acid manufacture by using catalysts comprising three-dimensional structures coated with catalytically active materials. ... | 04/29/2008 |
| 7258849 | Method for the production of nitric acid The invention relates to a method for the production of nitric acid having a concentration of between 50 and 76%, from ammonia and gas containing oxygen, under pressure, according to a single pressure method or dual pressure method. The expansion of the residual gas... | 08/21/2007 |
| 7195747 | Process for mixing and reacting two or more fluids A novel process for continuously mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved using cyclone mixing where at least two supply channels feed a mixing chamber to create a vortex of the f... | 03/27/2007 |
| 7192566 | Process for the catalytic decomposition of NO to Nand Ocarried out at high temperature The invention relates to a process for the catalytic decomposition of N2O to N2 and O2. This process is carried out at a high temperature, generally of between 700 and 1000° C., at a high HSV and in the presence of a catalyst... | 03/20/2007 |
| 7118723 | Method for producing nitric acid A process for producing nitric acid of a concentration in the range of 68 to 76% by weight, using the mono-pressure or the dual-pressure process in which the ammonia feedstock is combusted with the aid of compressed process air. The water vapour content of the proce... | 10/10/2006 |
| 7087550 | Combination of a guard bed and a catalyst bed A combination comprising a bed of a particulate copper-containing catalyst bed, a guard bed in the form of shaped units formed from lead carbonate and/or basic lead carbonate particles having an average (by volume) particle size below 100 μm. ... | 08/08/2006 |
| 7070757 | Method for producing catalysts consisting of metal of the platinum group by means of electroless deposition and the use thereof for the direct synthesis of hydrogen peroxide Catalysts produced by electroless deposition of at least one platinum metal on a nonporous nonmetallic support can be used for the synthesis of hydrogen peroxide from the elements and for the hydrogenation of organic compounds. ... | 07/04/2006 |
| 7033570 | Solar-thermal fluid-wall reaction processing The present invention provides a method for carrying out high temperature thermal dissociation reactions requiring rapid-heating and short residence times using solar energy. In particular, the present invention provides a method for carrying out high temperature th... | 04/25/2006 |
| 6743404 | Method for the catalytic decomposition of N2O A reactor for the catalytic oxidation of ammonia to form nitrogen oxides which has a noble metal gauze catalyst and a heat exchanger in that order in the direction of flow, a catalyst for the decomposition of N2O is located between the noble metal gauze c... | 06/01/2004 |
| 6649134 | Method and apparatus for reducing nitrous oxide A process and a device for reducing the nitrous oxide which is formed during the catalytic combustion of ammonia and oxygen to form nitrogen oxides. A catalyst system including at least one first catalyst mesh element and at least one second catalyst mesh... | 11/18/2003 |
| 6534029 | Method and apparatus for producing nitric oxide In the method of preparing nitric oxide by burning NH3 with oxygen, over a catalyst network in which the reaction product gases contain N2 O and are cooled, the N2 O is eliminated by oxidation or decomposition by immediate... | 03/18/2003 |
| 6395243 | Catalytic or non-catalytic processes with enriched oxygen as a reactant A method is provided for performing catalytic or non-catalytic processes which uses oxygen supplied from the permeate side of a mixed oxygen ion and electron conducting membrane by means of a sweep gas at an elevated temperature. The sweep gas is formed b... | 05/28/2002 |
| 6264910 | Process for the production of nitric acid A process for the production of nitric acid using the dual-pressure process in which the ammonia is burnt at an initial low pressure with the aid of compressed process air and the nitrous gases formed during combustion are at least partly absorbed by wate... | 07/24/2001 |
| 6238634 | Process for the nondestructive heating and supply of hot ammonia or hot ammonia containing feed gas A process for nondestructive heating and supplying of ammonia feed gas wherein high quality ammonia (typically greater than 90% and as high as 99%) is preserved at temperatures well in excess of the conventional limit of 230° C. (typically from 400 to 70... | 05/29/2001 |
| 6197268 | Reduction of toxic substances in waste gas emissions Nitrogen oxides are removed from a waste gas stream by contacting the waste gas stream with ammonia, thereby reducing the nitrogen oxides to nitrogen. Residual nitrogen oxides and unreacted ammonia in the waste gas stream leaving the nitrogen oxides reduc... | 03/06/2001 |
| 6165435 | Method and production of nitric acid A process is described for producing nitric acid involving oxidizing ammonia gas to form dinitrogen tetroxide gas, reacting the dinitrogen tetroxide with water in an absorption zone to form aqueous nitric acid and nitric oxide gas, removing a nitric acid/... | 12/26/2000 |
| 6056928 | Method of removing nitrogen oxides from a gas flow The invention relates to a process for removing nitrogen oxides from a gas stream containing same, which comprises passing the gas stream (A) through a stage for absorbing the nitrogen oxides other than N2 O in an absorbent or reacting the nitrogen ... | 05/02/2000 |
| 5985230 | Nitric acid production Provided is a process having an increased production capacity for nitric acid, which moves can be operated safely and efficiently. The process comprises forming a reaction mixtures by mixing air, ammonia, oxygen and an inert cooling fluid, preferably wate... | 11/16/1999 |
| 5783382 | Method for storing liquid diagnostic reagents Disclosed is a method for stably storing a liquid diagnostic reagent, comprising air-hermetically keeping the liquid diagnostic reagent in a closed container in the presence of a disoxidant therein. Preferably, at least one of the liquid diagnostic reagen... | 07/21/1998 |
| 5690900 | Ammonia oxidation catalyst A catalyst composition for oxidation of ammonia in the production of nitric acid incorporates a porous ceramic structure which is at least partially coated, the coating including a layer containing alumina, zirconium and cerium, a layer containing cobalt,... | 11/25/1997 |
| 5401483 | Catalyst assembly providing high surface area for nitric acid and/or HCN synthesis A catalyst assembly is disclosed which comprises a plurality of foraminous wire mesh sheets disposed in intimate nested relation to each other along their broad surfaces, the wire sheets defining a non-planar cross-section which consists of a plurality of... | 03/28/1995 |
| 5364609 | Process for the preparation and processing of a hydroxylammonium salt solution A process for the preparation and processing of a hydroxylammonium salt solution involves maintaining an aqueous acid reaction medium circulation between a hydroxylammonium salt synthesis zone and an oxime synthesis zone; continuously supplying nitrate io... | 11/15/1994 |
| 5360603 | Packed bed arrangement useful for mixing and/or oxidation The present invention relates to processes and apparatus for mixing oxidizable reactants with oxidant and/or oxidizing oxidizable reactants. Through using particular mixing and/or oxidizing arrangements, the risk of flammable or explosive reactions can be... | 11/01/1994 |
| 5356709 | Non-PVC coextruded medical grade port tubing The present invention provides an improved coextruded medical grade port tubing. The medical grade port tubing provides characteristics that are desirable in the medical industry and therefore can be used as a medical port tubing in, for example, renal th... | 10/18/1994 |
| 5268157 | Process for the production of catalytic gas permeable nets and process for oxidizing ammonia Wires of platinum containing 4 to 12% rhodium or 4 to 12% of palladium and rhodium (4 to 12% being in reference to the sum of palladium and rhodium and not the percent values for each individually) and wires of palladium containing 2 to 15% nickel or 2 to... | 12/07/1993 |
| 5266291 | Packed bed arrangement for oxidation reaction system The present invention relates to processes and apparatus for mixing oxidizable reactants with oxidant and oxidizing oxidizable reactants. When ammonia is used as the reactant, nitric acid can be obtained. Through using particular mixing and oxidizing arra... | 11/30/1993 |
| 5256387 | Catalyst for the production of nitric acid by oxidation of ammonia Reticulated ceramic or metal substrate coated with Cobalt compounds, noble metals or mixtures thereof are superior catalysts for the oxidation of ammonia to produce nitric oxide.... | 10/26/1993 |
| 5217939 | Catalyst for the prduction of nitric acid by oxidation of ammonia Reticulated ceramic or metal substrate coated with Cobalt compounds, noble metals or mixtures thereof are superior catalysts for the oxidation of ammonia to produce nitric oxide.... | 06/08/1993 |
| 4973457 | Method for the reduction of nitrogen oxide The present invention relates to a method of reduction of nitrogen oxides in gas mixtures, especially the removal/decomposition of nitrogen oxide in hot combustion gases. The hot gas mixture which contains N2 O is given a retention time of 0.1-... | 11/27/1990 |
| 4957720 | Process for the generation of mechanical energy in the ammonia oxidation step of a nitric acid production process A process for the generation of mechanical energy in the ammonia oxidation step of process for the production of nitric acid is disclosed, whereby the utilization of process heat is improved, particularly the exploitation of heat contained in NOx | 09/18/1990 |
| 4869890 | Control of nitric acid plant stack opacity during start-up and shutdown The present invention is a process for the control of nitric acid plant stack opacity in the range from 0 to 10 percent during plant startup and shutdown. The process is a series of sequential steps which encompass maximizing pressure, water and air flow ... | 09/26/1989 |
| 4818494 | Apparatus for manufacturing nitrogen fertilizer solutions To make and use nitrogeneous fertilizer on a farm, nitrogen oxides are prepared in a continuous process from air or from ammonia in a reactor, with the ammonia either being transported to the farm or local site in a farming area or being prepared on the s... | 04/04/1989 |
| 4711771 | Process and apparatus for cooling a gaseous stream before and/or during its compression The invention relates to the compression of a gaseous stream 1. The stream 1 is cooled by a liquid 15 that evaporates at least partially in the gaseous stream. The injected liquid has a composition different from that of the gas to be compressed, and is a... | 12/08/1987 |
| 4668494 | Method of using solar energy in a chemical synthesis process A method of using solar energy in a chemical synthesis process comprising steam reforming hydrocarbons or gasifying carbonaceous fuel, converting the product of the steam reforming of hydrocarbons or the gasifying of carbonaceous fuels to an ammonia synth... | 05/26/1987 |
| 4530826 | Method for recovering and utilizing waste heat In a process for producing chemical substances comprising steps of cooling, condensing and solvent-absorbing the reaction product gas having a high temperature formed in a reactor, an absorption type refrigerator or an absorption type heat pump is driven ... | 07/23/1985 |
| 4511539 | Recovery of precious metal The invention relates to the recovery of precious metal lost from precious metal-containing catalysts for example the precious metal-containing catalysts which are used in the production of nitric acid by ammonia oxidation. In more detail, a getter (as he... | 04/16/1985 |
| 4416952 | Oxynitride film and its manufacturing method The oxynitride film according to the present invention contains Ga and/or Al and has O/N ratio of at least 0.15. This film is obtained by relying on, for example, chemical vapor deposition technique. The O/N ratio in the film may be varied by, for example... | 11/22/1983 |
| 4397772 | Catalyst supports and fluid treatment devices A device for treating a fluid, in particular a supported catalyst for motor vehicle exhaust gas purification. The device comprises one or more short helically wound lengths of wire at least a surface of which comprises a solid surface coating for interact... | 08/09/1983 |
| 4389339 | Process for making a cobalt oxide catalyst A process for preparing an improved cobalt oxide catalyst for ammonia oxidation comprising decomposing a cobalt compound such as basic cobalt carbonate by heating to form cobalt oxide, then saturating the cobalt oxide with cobalt nitrate solution and rehe... | 06/21/1983 |
| 4330520 | Process and apparatus for preventing NOx emissions after emergency shutdowns of plants for the manufacture of nitric acid The process and apparatus described seeks to prevent NOx emissions after an emergency shutdown in a process for manufacturing nitric acid by catalytic combustion of ammonia, compression of the nitrous combustion gases and subsequent absorption.... | 05/18/1982 |
