| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 02/26/2002 | US6350614 System for monitoring and controlling, through automatically activated quenching system, excessive thermal build-up in ion exchange process treating liquid containing substance capable of undergoing exothermic reaction |
| 02/26/2002 | CA2064615C Process for the purification of the inert gases |
| 02/19/2002 | US6348179 Spherical boron nitride process, system and product of manufacture |
| 02/19/2002 | US6348083 Process and installation for the recovery and/or purification of the nitrous oxide contained in a waste gas |
| 02/19/2002 | CA2170542C Process for the vaporization of a hydrazine hydrate solution |
| 02/12/2002 | CA2249517C Process for removing hydrogen and/or carbon monoxide from an air stream |
| 02/07/2002 | WO2002010067A1 New catalytic device for the implementation of a reaction in a gaseous medium at high temperature |
| 02/07/2002 | WO2002010066A2 Adsorption process and apparatus for nitrogen production and drink dispensing device making use of the apparatus |
| 02/07/2002 | WO2002009852A2 System and process for removal of pollutants from a gas stream |
| 02/07/2002 | US20020016507 Reacting methyl ethyl ketone, ammonia, and hydrogen peroxide in presence of working solution of acetamide and ammonium acetate; recycling the working solution; condensing; hydrolysis |
| 02/07/2002 | US20020016084 Chemical vapor deposition of a precursor comprised of one or more N-Si chemical bonds such as trisilylamine, or a mixture comprised of a N-containing chemical precursor and a Si-containing chemical precursor |
| 02/07/2002 | US20020014283 Isotropic powdery magnet material, process for preparing and resin-boned magnet |
| 02/07/2002 | US20020014182 For use in electrical devices, magnetic devices, optical devices, biomedical devices, and electrochemical devices |
| 02/07/2002 | CA2456272A1 System and process for removal of pollutants from a gas stream |
| 02/06/2002 | EP1177574A1 Anti-reflective coatings and methods regarding same |
| 02/06/2002 | EP0981405B1 Method of preparation of sealed gas chambers |
| 02/05/2002 | US6344271 Materials and products using nanostructured non-stoichiometric substances |
| 01/31/2002 | WO2002008121A2 A method for shaping a nanotube and a nanotube shaped thereby |
| 01/31/2002 | WO2002008120A2 Telescoped multiwall nanotube and manufacture thereof |
| 01/30/2002 | EP1175933A1 Gas separation apparatus |
| 01/29/2002 | US6341739 Comminuting ceramic to material having specified particle size distribution, subjecting particles to differential sedimentation in liquid medium to separate light fraction including ceramic from heavy fraction including ferrosilicon |
| 01/29/2002 | CA2062218C Silicon boron nitride ceramic and precursor compounds, a process for their preparation and their use |
| 01/24/2002 | WO2002006156A1 Method of making aluminium oxynitride and aluminium oxynitride prepared by the method |
| 01/23/2002 | CN1332653A Catalyst support |
| 01/17/2002 | US20020006547 Battery |
| 01/17/2002 | US20020006511 Highly delaminated hexagonal boron nitride powders, process for making, and uses thereof |
| 01/17/2002 | US20020006373 Controlling particle sizes |
| 01/16/2002 | EP1172698A2 Lithographic projection apparatus, device manufacturing method, device manufactured thereby and gas composition |
| 01/16/2002 | CN1331656A Method for making hydrazine by hydrolysing azine |
| 01/16/2002 | CN1330970A Purification of gas |
| 01/15/2002 | CA2263233C Barrier discharge conversion of so2 and nox to acids |
| 01/09/2002 | CN2470339Y Apparatus for making high-purity nitrogen using pressure-changing adsorption principle |
| 01/08/2002 | CA2040904C Alkenyl substituted stabilizers |
| 01/03/2002 | WO2002000379A1 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 |
| 01/03/2002 | US20020001560 Process for purifying perfluorinated products |
| 01/03/2002 | US20020001559 Aqueous zinc nitrite solution and method for preparing the same |
| 01/03/2002 | US20020001558 Ammonia composition and process therefor and therewith |
| 01/02/2002 | EP1166845A1 Process for purifying gases |
| 01/02/2002 | EP1113985A4 Production of nitrous oxide |
| 01/02/2002 | CN1329683A Simulated diamond gemstones formed of aluminum nitride and aluminium nitride silicon carbide alloys |
| 01/01/2002 | US6334908 Sm-Fe-N alloy powder and process for the production thereof |
| 01/01/2002 | CA2214557C Process for argon purification |
| 12/27/2001 | WO2001098205A1 Method for producing silicon nitride |
| 12/20/2001 | DE10039753A1 Production of ammonia for use in e.g. synthetic fertilizers, comprises forming silicon nitride from silicon (compound) and nitrogen, in the presence of a transition metal (oxide) catalyst, and reacting it with a strong base |
| 12/20/2001 | DE10039752A1 Production of silicates, for use in e.g. flame retardants or as binders, involves preparation of silicon nitride at low temperature from silicon (compound) and nitrogen over transition metal (oxide) catalyst and reacting with strong base |
| 12/20/2001 | DE10039751A1 Silicon nitride preparation useful as a starting material for other products and as energy source involves forming silicon nitride from silicon (compound) and nitrogen over transition metal (oxide) catalyst by exothermic reaction |
| 12/13/2001 | WO2001094298A1 Process for the preparation of cyclohexanone oxime |
| 12/13/2001 | WO2001094297A1 Process for the production of cyclohexanone oxime |
| 12/13/2001 | WO2001094296A1 Process for the production of cyclohexanone oxime |
| 12/12/2001 | CN1326200A Isotropic powdery magnetic material, preparation thereof and resin binded magnet |
| 12/12/2001 | CN1326085A Low temperature gas separating system with diffluent still for recirculation |
| 12/06/2001 | WO2001092590A1 Non-evaporable getter alloys |
| 12/06/2001 | WO2001091893A1 Method for optimising a production increase operation |
| 12/06/2001 | DE10114821A1 Wässrige Hydroxylamin-Lösung Aqueous hydroxylamine solution |
| 12/06/2001 | CA2407725A1 Method for optimising a production increase operation |
| 12/05/2001 | EP1160805A2 Isotropic powdery magnet material, process for preparing and resin-bonded magnet |
| 12/05/2001 | EP0996589B1 Method for preparing polyborazylene mesophase, polyborazylene mesophase, use as bn precursor |
| 12/04/2001 | US6326325 Method for fabricating silicon oxynitride |
| 11/29/2001 | WO2001089989A1 Method for producing concentrated nitric acid and installation for carrying out a method of this type |
| 11/28/2001 | EP1157415A1 Silicon oxynitride film |
| 11/28/2001 | CN2461647Y Oxygen and nitrogen enriching appts. |
| 11/28/2001 | CN2461646Y Oxygen and nitrogen separating appts. |
| 11/28/2001 | CN1323746A Prepn. of hydroxocobalamine salt with cyanocobalamine as precursor |
| 11/27/2001 | US6322766 Oxidizing ammonia mixed with air and water over an platinum / rhodium catalyst; efficiency |
| 11/22/2001 | WO2001087771A1 Method and device for the reduction of nitrogen protoxide |
| 11/22/2001 | WO2001087464A1 Process for scrubbing flue gas using acids |
| 11/22/2001 | WO2001047805B1 Method for concentrating aqueous hydrazine solution and device therefor |
| 11/22/2001 | DE10123355A1 Aqueous zinc nitrite solution, used as promoter in surface treatment of metal, is prepared by reacting zinc sulfate with calcium nitrite and purifying resultant solution |
| 11/21/2001 | EP1156291A1 Cryogenic air separation system with split kettle recycle |
| 11/21/2001 | EP1155164A1 In situ chemical generator and method |
| 11/20/2001 | US6319602 Boron nitride and process for preparing the same |
| 11/20/2001 | US6319485 Magnetic material and production method thereof |
| 11/18/2001 | CA2347762A1 Cryogenic air separation system with split kettle recycle |
| 11/15/2001 | WO2001085603A2 Process for producing nitrogen trifluoride and use thereof |
| 11/14/2001 | EP1153885A1 A process for concentrating fluorine compounds |
| 11/14/2001 | EP1153884A1 Purification of nitrogen trifluoride by continuous cryogenic distillation |
| 11/14/2001 | CN1074746C Prepn. process of hydrazine hydrate |
| 11/14/2001 | CN1074697C Process for producing high-porosity non-evaporable getter materials and materials thus obtained |
| 11/08/2001 | WO2001083371A2 Highly delaminated hexagonal boron nitride powders, process for making, and uses thereof |
| 11/07/2001 | EP1152066A1 Coloured metal nitride films and process of manufacturing |
| 11/07/2001 | EP1150765A1 Catalyst support |
| 11/07/2001 | CN2458318Y Small generator for producing air, hydrogen and nitrogen |
| 11/07/2001 | CN1320475A Method and catalyst for reducing nitrogen oxides |
| 11/06/2001 | US6312657 Production of nitrous oxide |
| 11/01/2001 | WO2001080991A1 Selective adsorbent for nitrogen and method for separating air using the same |
| 10/31/2001 | EP1149934A2 CVD synthesis of silicon nitride materials |
| 10/31/2001 | DE10020100A1 Verfahren und Katalysator zur Reduktion von Stickoxiden A process and catalyst for reducing nitrogen oxides |
| 10/31/2001 | CN1073966C Manufacture of chemicals |
| 10/25/2001 | US20010034312 Contains iron in an amount of not more than 10 ppb, other metal components in an amount of not more than 5 ppb, trans-1,2-diaminocyclohexane-N,N,N',N'-tetraacetic acid in an amount of 0.0005 to 0.5 weight %; for washing electronics |
| 10/25/2001 | US20010034296 Grain growth inhibitor for superfine materials |
| 10/24/2001 | EP1147801A1 Process and catalyst for the selective reduction of nitrogen oxides |
| 10/23/2001 | US6306358 Crystalline turbostratic boron nitride powder and method for producing same |
| 10/22/2001 | CA2344735A1 A process and catalyst for reducing nitrogen oxides |
| 10/18/2001 | US20010031230 Medical equipment |
| 10/17/2001 | EP1144306A1 Method for making a hydrazine by hydrolysing an azine |
| 10/17/2001 | CN1072974C Process for purification of inert gases |
| 10/16/2001 | US6303760 Trimetallic nitride endohedral metallofullerenes |
| 10/16/2001 | US6303520 Silicon oxynitride film |
| 10/16/2001 | CA2247339C Process for producing aluminum nitride |
| 10/10/2001 | EP0946290B1 Ammonia oxidation |