| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 10/28/2003 | CA2345873C Purification of nitrogen trifluoride by continuous cryogenic distillation |
| 10/23/2003 | WO2003086971A1 Method for synthesising superhard materials |
| 10/23/2003 | US20030199624 Conductive nanocomposite films |
| 10/23/2003 | US20030198587 Using tungsten carbonyl compound in vapor phase |
| 10/22/2003 | CN1450203A Fine preparation process for high-purity nitrogen trifluoride gas |
| 10/22/2003 | CN1449992A Method and apparatus for producing nitrogen trifluoride |
| 10/16/2003 | WO2003037784A3 Method for reversible storage of hydrogen and materials for hydrogen storage |
| 10/16/2003 | WO2003035945A3 Substrate for epitaxy |
| 10/14/2003 | US6632477 Superabrasive composite material having the general formula SixCyNz; cutting tools; vapor forms of Si, C, and N elements are deposited onto a molten metal catalyst and solid SixCyNz is precipitated therefrom. |
| 10/08/2003 | CN1123753C Cryogenic rectification system for producing ultra-high purity nitrogen and ultra-high purity oxygen |
| 10/07/2003 | US6630413 CVD syntheses of silicon nitride materials |
| 10/02/2003 | WO2003080275A2 Powder and coating formation method and apparatus |
| 10/02/2003 | WO2003080236A1 Process for the preparation of molecular sieve adsorbent for selective adsorption of nitrogen and argon |
| 10/02/2003 | WO2002083554A3 Method for the production of highly pure nitric acid |
| 10/02/2003 | US20030186800 Mixing raw powders having a particle size of 10 mu m or less of alpha -, beta - or amorphous silicon nitride, each of which is a low pressure phase, with non- nitrified metal powder; forming compact; shock wave compression treatment |
| 10/02/2003 | US20030185740 Combustion synthesis reaction. |
| 10/01/2003 | EP1347938A1 Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group |
| 10/01/2003 | EP1239983B1 Method for producing a powder |
| 10/01/2003 | CN1446195A Process for production of cyclohexanone oxime |
| 10/01/2003 | CN1446194A Process for preparing cyclohexanone oxime |
| 10/01/2003 | CN1445161A Technique for preparing silicon nitride powders with high alpha phase by using plasma chemical vapor phase process |
| 10/01/2003 | CN1445017A Gas separation equipment using double-head air compressor |
| 10/01/2003 | CN1122727C Purifying and nitriding process for producing manganese alloy with very low impurity content |
| 10/01/2003 | CN1122639C Method for preparing sodium 15-N-nitrite |
| 10/01/2003 | CN1122634C Process for preparing hydrazine hydrate |
| 09/25/2003 | WO2003078314A1 Method for reducing the nox waste gas concentration in a nitric acid installation during a shutdown and/or start-up process |
| 09/25/2003 | US20030180211 Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride |
| 09/24/2003 | EP1346952A2 Process for the reduction or elimination of NH3/HF byproduct in the manufacture of nitrogen trifluoride |
| 09/24/2003 | CN1444559A Process for production of cyclohexanone oxime |
| 09/24/2003 | CN1444542A New catalytic device for implementation of reaction in gaseous medium at high temp. |
| 09/18/2003 | US20030175197 Process for the prepartation of dinitramidic acid and salts thereof |
| 09/18/2003 | US20030175195 New catalytic device for the implementation of a reaction in a gaseous medium at high temperature |
| 09/18/2003 | US20030175194 Purification by removing of oxides of sulfur (SOX) and oxides of nitrogen (NOX) gases; pollution control, air pollution, catalytic exhaust system |
| 09/18/2003 | US20030172772 High energy microwaves ionize a plasma gas, thus releasing large amounts of energy, which is utilized to initiate and sustain chemical reactions between the desired elements being pumped in a spiral pattern into the plasmatron |
| 09/17/2003 | EP1344748A1 A process for the preparation of dinitramidic acid and salts thereof |
| 09/17/2003 | EP1343719A2 Method for continuously producing hydroxylammonium salts |
| 09/17/2003 | CN1121347C Method for reducing discharge of nitrogen oxide in course of preparing nitrate |
| 09/16/2003 | CA2069165C Stabilization of aqueous hydroxylamine solutions |
| 09/12/2003 | WO2003015888A3 Method of platinum particles recovery from reaction gas in the process of nitric acid production and granular composite material for recovery of such particles |
| 09/11/2003 | US20030171346 Safe method for the production of sulfamoyl chloride from chlorosulfonyl isocyanate and formic acid in the presence of a amide catalyst, taming the hazardous nature of this reaction by circumventing heat accumulation processes, as well as the |
| 09/11/2003 | US20030171205 Process for production of molecular sieve adsorbent blends |
| 09/11/2003 | US20030170161 Maintaining hexagonal boron nitride in the presence of a catalyst substance under conditions where cubic boron nitride remains thermodynamically stable to thereby transform hexagonal boron nitride into cubic boron nitride |
| 09/11/2003 | US20030170153 Method and apparatus for generating H20 to be used in a wet oxidation process to form SiO2 on a silicon surface |
| 09/10/2003 | EP1341599A1 Catalyst for purifying exhaust gases |
| 09/10/2003 | CN2571734Y Gas phase synthesizer for preparing nano siliconnitride powder |
| 09/04/2003 | WO2003072523A1 Abrasive particles based on aluminium oxynitride |
| 09/04/2003 | US20030166379 Chemical mechanical polishing slurry |
| 09/04/2003 | US20030165417 Exothermic reaction of silicon, or compound thereof, and nitrogen, or compound therof; exothermic reactions |
| 09/03/2003 | EP1257500B1 Process for the separation of a hydroxylammonium salt solution |
| 09/03/2003 | CN1120128C Stabilized hydroxylamine solutions |
| 08/28/2003 | WO2003070634A1 Method for the production of nitric acid |
| 08/28/2003 | WO2003061820A3 Process for production of molecular sieve adsorbent blends |
| 08/27/2003 | EP1338559A2 Method and apparatus for the production of nitrogen trifluoride |
| 08/27/2003 | EP1338558A2 Method of purifying gaseous nitrogen trifluoride |
| 08/27/2003 | CN1438173A Spiral thick nitricacid bleaching tower and preparation of thick nitric-acid |
| 08/27/2003 | CN1438172A Method for preparing titanium nitride fine powder by eiquid-phase reduction |
| 08/27/2003 | CN1119384C Rare earth borate and its precursor, preparation processes and use borate as lumcinophore |
| 08/26/2003 | US6610355 Nanostructured deposition and devices |
| 08/26/2003 | US6610263 System and process for removal of pollutants from a gas stream |
| 08/21/2003 | US20030157867 Particle forming method |
| 08/21/2003 | US20030157008 Denitrification, desulfurization; pollution control |
| 08/21/2003 | US20030156964 Method and apparatus for producing magnetic rare earth alloy powder, method for producing bonded magnet, method for producing rare earth sintering magnet, and method and apparatus for improving purity of inert gas |
| 08/21/2003 | US20030154821 Leaching the silver bullion with nitric acid in oxygen atomsphere, followed by filtration, separating gold bearing residue form silver rich liquor, heating, evaporating water, forming silver nitrate melt, and separating form the residue |
| 08/20/2003 | EP1336071A2 Method and installation for purifying and recycling helium and use in optical fibre manufacture |
| 08/19/2003 | US6607821 Applications and devices based on nanostructured non-stoichiometric substances |
| 08/19/2003 | US6607779 Non-stoichiometric non- equilibrium material, and the material is a nanostructured material. |
| 08/14/2003 | US20030153186 Apparatus and method using a remote RF energized plasma for processing semiconductor wafers |
| 08/14/2003 | US20030152507 Method and apparatus for the production of nitrogen trifluoride |
| 08/14/2003 | US20030152497 Process and apparatus for removing carbon monoxide from a gas stream |
| 08/13/2003 | EP1333918A1 Carbamate condensation unit |
| 08/13/2003 | EP0952969B1 Preparation of textile preforms sheathed in a boron nitride coating, composites incorporating them |
| 08/13/2003 | CN1435371A Method for preparing aluminium nitride powder |
| 08/13/2003 | CN1117709C Method for preparing reramic particles |
| 08/13/2003 | CN1117697C Low temp. system for producing super-purity nitrogen |
| 08/12/2003 | US6605421 Aqueous solution containing hydroxylamine salt and storing method thereof |
| 08/12/2003 | US6605265 Introducing hydrogen peroxide, ammonia and ketone or aldehyde into circulating reaction medium in azine reaction zone, withdrawing azine formed, heating medium, recycling to reaction zone, introducing reagent to maintain equilibrium |
| 08/12/2003 | US6605137 Contacting an oxygen-containing fluid and a hydrocarbon with an ammonia vapor containing anti-foaming agent and is substantially free of water, to effect the production of nitrile |
| 08/12/2003 | CA2302989C Production of hydrogen and carbon monoxide |
| 08/06/2003 | EP0933991A4 Powders providing controlled sustained release of a gas |
| 08/06/2003 | CN1433999A Process for synthesizing superfine aluminium nitride powder and aluminium based heterogeneous ceramic powder by SHS method |
| 08/06/2003 | CN1433959A Process for combustion synthesizing high alpha phase superfine silicon carbide powder and silicon nitride whisker |
| 08/06/2003 | CN1116929C Platinum based alloy for ammonia oxidation catalyst and the catalyst net made therefrom |
| 08/05/2003 | US6602595 Ink comprising: a non-stoichiometric non-equilibrium nanostructured material; device such as electronics using such a material |
| 08/05/2003 | US6602543 Nanotechnology for magnetic components |
| 08/05/2003 | CA2296699C Purification of hydroxylamine |
| 07/31/2003 | WO2003061820A2 Process for production of molecular sieve adsorbent blends |
| 07/31/2003 | US20030144142 Contacting nitrous oxide(N2O)-containg waste gas leaving the absorption column with a catalyst which comprises oxidic cobalt compound and at least one oxidic magnesium compound for conversion of N2O to gaseous nitrogen and oxygen |
| 07/31/2003 | US20030143148 Method for producing nitric acid |
| 07/31/2003 | US20030143142 Residual gas leaving the absorption column is passed, prior to entry into the residual gas turbine, through a stage of reducing the NOx content by catalytic reduction, and second stage reducing the N2O content of the gas by decomposition |
| 07/30/2003 | EP1102953B1 Installation producing low voltage electricity integrated in a unit separating gas from air |
| 07/30/2003 | EP1017621B1 Purification of hydroxylamine |
| 07/29/2003 | US6600127 Portions of anode and cathode are vaporized and ablated |
| 07/24/2003 | US20030138368 High purity nanomaterials |
| 07/23/2003 | EP1329436A2 Method of production of boron nitride fibers starting from borylborazines |
| 07/23/2003 | EP1328471A1 Method and device for producing nickel sulphamate |
| 07/23/2003 | EP1189838B1 Process for the nondestructive heating and supply of hot ammonia or hot ammonia containing feed gas |
| 07/23/2003 | CN1431146A Method for preparing powder of nano vanadium nitride in cubic phase |
| 07/23/2003 | CN1431145A Method for synthesizing crystallites and block crystals of nitride by multistep reaction in-situ under hydrothermal condition |
| 07/22/2003 | US6596196 Rare earth borate, its precursor, and luminophore made thereof |
| 07/17/2003 | WO2003058644A2 Superhard dielectric compounds and methods of preparation |