| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 10/16/2008 | US20080255393 Method for Purifying and Concentrating Dinitrogen Monoxide |
| 10/16/2008 | US20080251754 Ionic onium compound with imidide; high ionic conductivity, delocalized anionic charge |
| 10/16/2008 | DE10314492B4 Verfahren zur Herstellung einer wässrigen Lösung von Hydroxylamin A process for preparing an aqueous solution of hydroxylamine |
| 10/15/2008 | CN201132099Y Connecting rod for adsorption tower |
| 10/15/2008 | CN201132098Y Air separating and adsorbing system |
| 10/15/2008 | CN101284656A Nitric oxide gas generating unit and preparing process |
| 10/15/2008 | CN101284655A Lithium ionic cell cathode material of graphite-like structure and preparing process thereof |
| 10/15/2008 | CN100425553C Hydrazine hydrate byproduct 5% salt water processing and reclamation method |
| 10/15/2008 | CN100425531C Process for nitrous oxide purification |
| 10/14/2008 | US7435285 Contacting a gas stream with an adsorption composition of Copper oxide, zirconium oxide and zinc oxide |
| 10/09/2008 | US20080248012 Modulator of adenosine triphosphate release from red blood cells; treating and preventing ischemic reperfusion injuries, cardiovascular and vasodilatory diseases |
| 10/08/2008 | EP1977995A1 Method for manufacturing hydroxylamine |
| 10/08/2008 | EP1977994A1 A method for preparing hydroxylamine |
| 10/08/2008 | CN201127879Y Adsorption tower system of oxygen generator |
| 10/08/2008 | CN101279724A Magnesium amide nano-particle hydrogen storage material and preparation thereof |
| 10/08/2008 | CN101279723A In situ template method for preparing AlN nano-hollow sphere |
| 10/08/2008 | CN101279236A Purificant for adsorbing ammonia gas and method of preparing the same |
| 10/07/2008 | CA2399466C Catalyst for decomposing n2o, its use, and process for its production |
| 10/07/2008 | CA2329871C Method for the catalytic decomposition of n2o |
| 10/02/2008 | WO2008117855A1 Nitrogenous carbon material and process for producing the same |
| 10/02/2008 | US20080241040 Nano-scale metal halide scintillation materials and methods for making same |
| 10/02/2008 | US20080237538 Process for Preparing Lithium Amide and a Composition Obtainable by Said Process |
| 10/02/2008 | US20080236033 Slow-release floating fertilizer |
| 10/01/2008 | CN100422360C Preparation of alloys by the armstrong method |
| 10/01/2008 | CN100422074C Method for preparing nanometer titanium carbonitride powder |
| 10/01/2008 | CN100422073C Ammonia storage and injection in NOx control |
| 10/01/2008 | CN100421788C Mixed ruthenium base amino synthetic catalyst and its preparing method |
| 09/25/2008 | WO2008057454A8 Growth and manufacture of reduced dislocation density and free-standing aluminum nitride films by hydride vapor phase epitaxy |
| 09/25/2008 | US20080233039 Catalysts For Co Oxidation,Voc Combustion And Nox Reduction And Methods Of Making And Using The Same |
| 09/25/2008 | US20080233033 Mitsubishi-type mixed metal oxide oxidation catalyst; homogeneous and heterogeneous oxidation reactions of organic substrates; easy and reproducible to prepare |
| 09/24/2008 | CN201120245Y U shaped adsorption column |
| 09/24/2008 | CN201120244Y Secondary adsorption pressure swing adsorption air separation system |
| 09/24/2008 | CN101269978A Method for synthesizing ultra-fine azotized magnesium powder with combustion |
| 09/24/2008 | CN101269803A Preparation for high alpha-Si3N4 phase silicon nitride |
| 09/24/2008 | CN101269802A Method for synthesizing Si3N4 powder body and Si3N4/SiC composite powder body |
| 09/24/2008 | CN101269801A Nitrogen gas processing equipment for continuous solid phase polycondensation and using method thereof |
| 09/18/2008 | US20080226835 Production Method of Material Film and Production Apparatus of Material Film |
| 09/18/2008 | US20080226533 Nitrating acid mixture to form dinitramidinc acid |
| 09/18/2008 | US20080226532 Reversible; lithium, magnesium hydride; reacting magnesium hydride with lithium amine in inert gases |
| 09/18/2008 | CA2664837A1 Metal oxide fibers and nanofibers, method for making same, and uses thereof |
| 09/17/2008 | EP1970348A1 Sintered silicon nitride and method for producing the same |
| 09/17/2008 | CN101265153A Technique for reclaiming organic hydrocarbon and nitrogen gas from polyethylene device tail gas |
| 09/17/2008 | CN101264887A Technique for purifying calcium carbide furnace gas |
| 09/17/2008 | CN101264869A Continuous producing technique for ultra-high pure nitric acid |
| 09/16/2008 | US7425247 by simultaneous countercurrent treatment of hydroxyl ammonium sulfate with ammonia or ammonia water, then separation by distillation and concentration of the solution in a countercurrent flow with a stripping medium comprising a mixture of steam and a noncondensable inert gas |
| 09/11/2008 | US20080219910 Single-Crystal GaN Substrate |
| 09/11/2008 | US20080219909 Phosphorous Pentoxide Producing Methods |
| 09/11/2008 | US20080217894 Micro-gas generation |
| 09/11/2008 | US20080216478 Integration of a water-splitting process with production of fertilizer precursors |
| 09/10/2008 | EP1966083A2 Method for isolating n2o |
| 09/10/2008 | CN101259960A Method for preparing boron nitride coating carbon nano-tube/nano-wire and boron nitride nano-tube |
| 09/10/2008 | CN101259957A Method for preparing silicon nitride powder material under low temperature |
| 09/10/2008 | CN101258801A Method for improving yield and quality of greenhouse vegetable and using device |
| 09/09/2008 | US7422631 Mould parts of silicon nitride and method for producing such mould parts |
| 09/04/2008 | WO2008090124A3 Method for producing crystalline hydroxylamine-o-sulfonic acid |
| 09/04/2008 | US20080213158 Apparatus for production of crystal of group III element nitride and process for producing crystal of group III element nitride |
| 09/04/2008 | US20080213154 Divided Solid Composition Composed of Grains Provided with Continuous Metal Deposition, Method for the Production and Use Thereof in the Form of a Catalyst |
| 09/04/2008 | US20080210444 Metal oxide nanoparticles for smoke clearing and fire suppression |
| 09/03/2008 | EP1964811A1 Method for preparing hydroxylamine |
| 09/03/2008 | CN201108796Y Connecting link for desorption of adsorption tower |
| 09/03/2008 | CN201108795Y Pressure-swing adsorption air separation system |
| 09/03/2008 | CN201108794Y Pressure-swing adsorption air separation system |
| 09/03/2008 | CN101258104A Purification method of nitrogen trifluoride |
| 09/03/2008 | CN101255549A Super-hydrophobic boron nitride film and preparation method thereof |
| 09/03/2008 | CN101254906A Method and device for vacuum nitric acid gas recovering during preparation of nitric acid |
| 09/03/2008 | CN101254905A Solvent thermal constant-pressure synthesis method for controlling phase of carbon nitride material |
| 09/03/2008 | CN101254904A Method for preparing boron nitride continuous nano fibre |
| 09/03/2008 | CN100415641C Method for synthesizing isotropic silicon nitride powder adopting layer type material-distribution |
| 09/03/2008 | CN100415640C Ultra-fine high-nitrogen tantalum nitride powder and its preparation method |
| 09/02/2008 | US7420261 Bulk nitride mono-crystal including substrate for epitaxy |
| 09/02/2008 | US7419647 Exhaust gas from an internal combustion engine is treated with a hydrocarbon trap material formed by exchanging or impregnating a zeolite with silver and subsequently steaming the silver zeolite at a high temperature of at least 600 degrees C |
| 09/02/2008 | US7419572 Irradiating a surface of a substrate, a growing surface, and a growing spacing region with ultraviolet light placed in a reaction chamber containing a diluted mixed gas containing boron and nitrogen to grow the boron nitride having a hexagonal 5H or 6H polytypic form on the substrate. |
| 08/28/2008 | WO2008101416A1 The application of the epoxy-aln composite material in the preparation of the high density pcb |
| 08/27/2008 | CN100414004C Device and method for producing single crystals by vapor deposition |
| 08/27/2008 | CN100413780C Nano stick array material |
| 08/26/2008 | US7416716 Removal of sulfur dioxide (SO2) and nitrogen oxides (NOx) from gaseous carbon dioxide produced in an oxyfuel combustion process such as coal-fired power plants by transforming with oxygen and water into sulfuric acid and nitric acid; for capture of CO2 in global warming abatement |
| 08/21/2008 | WO2008098600A1 Method and device for preventing corrosion on a gas inlet nozzle during nitric acid condensation |
| 08/21/2008 | WO2007062046A3 Process for producing a silicon nitride compound |
| 08/21/2008 | US20080200326 Aluminum nitride powder and aluminum nitride sintered compact |
| 08/21/2008 | US20080199649 used for coating epitaxial films in the fabrication of electronic and opto-electronic devices such as laser diodes, light emitting diodes, transistors and detectors |
| 08/21/2008 | US20080199386 adding ammonium chloride to a hydrochloric acid solution containing ruthenium, heating to form (NH4)3RuCl6, precipitating, filtering, baking the precipitated crystals in reducing atmosphere; pulverizing of RU is easier because of the low moisture content of the ammonium hexachlororuthenate crystals |
| 08/20/2008 | EP1525161B1 Method for producing a solid containing zeolites |
| 08/20/2008 | CN101248006A Method and apparatus for producing nitrogen trifluoride |
| 08/20/2008 | CN101245262A Gas-steam combined cycle system and technique based on coal gasification and methanation |
| 08/20/2008 | CN101244812A Method for manufacturing flying saucer shaped nano-hexagonal boron nitride powder |
| 08/20/2008 | CN100411976C Silicon nitride ceramic powder production method |
| 08/19/2008 | US7413722 Method and apparatus for manufacturing nitrogen trifluoride |
| 08/19/2008 | US7413721 Generating a plasma from a gas containing nitrogen; adding metal particles to form nitride and/or oxynitride particles; reacting the particles with water to form ammonia and metal hydroxide; and reducing the metal hydroxides to form metal, which is recycled back to the plasma; NH3 may be thermocracked |
| 08/19/2008 | US7413661 Method for purifying semiconductor gases |
| 08/15/2008 | CA2621203A1 Method and device for separating a gas mixer |
| 08/14/2008 | US20080193363 Metal Nitrides and Process for Production Thereof |
| 08/14/2008 | US20080193362 reacting sulfate, hydrochloride, nitrate or phosphate salts of hydroxylamine with a bases, while keeping the reaction solution at a pH of 7 or more, then purifying the hydroxylamine by ion exchange and concentrating by distillation |
| 08/14/2008 | US20080193361 Ultra-Hard Materials |
| 08/14/2008 | US20080193359 Methods of forming single-crystal metal-silicide nanowires and resulting nanowire structures |
| 08/14/2008 | US20080193356 Procedure for the hydrogenation of bnh-containing compounds |
| 08/13/2008 | CN201098596Y Adsorption tower |
| 08/13/2008 | CN101243012A Method for purification of nitrogen oxide and apparatus for purification of nitrogen oxide |
| 08/13/2008 | CN101243011A Method of producing group 13 metal nitride crystal, method for manufacturing semiconductor device, and solution and melt used in those methods |
| 08/13/2008 | CN101239709A Iodine auxiliary low-temperature preparation method for silicon nitride nano material |
| 08/13/2008 | CN100410179C Method for preparing gallium nitride nano crystal using sol-gel method |