| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 08/20/1992 | CA2103896A1 Production of metal and metalloid nitrides |
| 08/18/1992 | US5139825 Exposing heated substrate to mixed vapors containing ammonia and volatile transition metal amines |
| 08/18/1992 | US5139632 Recovery of mixed acids from mixed salts |
| 08/18/1992 | CA1306422C Modular, shell-less, air permeator |
| 08/18/1992 | CA1306341C Process for the reduction of nitrogen oxides in an effluent |
| 08/11/1992 | US5138111 Eta phase materials, methods of producing the same, and use thereof as catalysts for alcohol synthesis, hydrocarbon synthesis, hydrocarbon hydrogenation and hydrocarbon conversion reactions |
| 08/11/1992 | US5138079 Reacting oligohydridoorganylsilazane with chlorosilanes |
| 08/11/1992 | US5137772 Body coated with cubic boron nitride and method for manufacturing the same |
| 08/06/1992 | WO1992012943A1 Rapid solid-state synthesis of refractory materials |
| 08/05/1992 | WO1992013802A1 Process of removing nitrite from a silver nitrate solution |
| 08/05/1992 | EP0497003A2 Use of helium and argon diluent gases in modification of carbon molecular sieves |
| 08/05/1992 | CN1017725B Method for preparing nitrogen group protecting atmosphere by direct reaction |
| 08/04/1992 | US5135894 Particulate ceramics materials and production thereof |
| 08/04/1992 | US5135756 Process for improving the physical and catalytic properties of a fluid cracking catalyst |
| 08/04/1992 | US5135548 Adsorptive separation of nitrogen from oxygen using carbon molecular sieve and water soprtion agent |
| 07/31/1992 | WO1992013628A2 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures |
| 07/31/1992 | CA2078448A1 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures |
| 07/29/1992 | CN1063053A Three-stage membrane gas spearation process and system |
| 07/29/1992 | CN1017609B Process for prepn. of high content of alpha-phase silicon nitride |
| 07/22/1992 | CN1062902A Preparation of hydrazing hydrate using sylvine oxygenant |
| 07/21/1992 | US5132389 Polycondensation of impure P2 NOCl5 into uncrosslinked poly(dichlorophosphazenes) in the presence of PCl5 |
| 07/21/1992 | US5132246 Process for using dross residues to produce refractory products |
| 07/14/1992 | US5130549 Method of detecting or measuring nuclear radiation |
| 07/14/1992 | CA1304914C Reduction of nitrogen- and carbon-based pollutants through the use of urea solutions |
| 07/09/1992 | WO1992011396A1 Method of producing a sintered carbonitride alloy for intermittent machining of materials difficult to machine |
| 07/09/1992 | WO1992011395A1 Method of producing a sintered carbonitride alloy for fine to medium milling |
| 07/09/1992 | WO1992011394A1 Method of producing a sintered carbonitride alloy for semifinishing machining |
| 07/09/1992 | WO1992011392A1 Method of producing a sintered carbonitride alloy for fine milling |
| 07/08/1992 | EP0494129A1 Direct nitridation process of metals having a low melting point |
| 07/08/1992 | EP0494128A1 Oxynitride based product for covering screened electrical resistors and for refractory application and method of making same |
| 07/07/1992 | US5128112 Low temperature decomposition of organometallic intermediate |
| 07/07/1992 | US5128001 Method of separating electrochemically produced dinitrogen pentoxide from its solution in nitric acid |
| 07/04/1992 | CA2058701A1 Lining product for shielded electrical resistance and mixed oxynitride-based refractory application and production process |
| 07/04/1992 | CA2058521A1 Use of helium and argon diluent gases in modification of carbon molecular sieves |
| 07/01/1992 | EP0493148A1 Composite material with refractory fibrous reinforcement and its process of production |
| 07/01/1992 | EP0492161A2 Cubic boron nitride/cubic boron nitride composite masses and their preparation |
| 07/01/1992 | EP0492079A1 Process for the preparation of spherical amorphous silicon nitride |
| 07/01/1992 | CN1017236B Improved mambrane separation system and process |
| 06/30/1992 | US5126121 Process for preparing aluminum nitride powder via controlled combustion nitridation |
| 06/24/1992 | CN1017165B Process for production or recovery of acids from metalliferous solutims of such acid |
| 06/23/1992 | US5124138 Work-up of aqueous mother liquors containing hydrochloric acid, sulfuric acid and their hydroxyl-ammonium and ammonium salts |
| 06/23/1992 | CA1304067C Ammonia oxidation catalyst pack |
| 06/21/1992 | CA2056497A1 Cbn/cbn composite masses and their preparation |
| 06/17/1992 | EP0490614A1 Preparation of titanium nitride from organometallic precursors |
| 06/17/1992 | EP0490480A1 Preparation of aluminum oxynitride from organosiloxydihaloalanes |
| 06/17/1992 | EP0490322A1 Three-stage membrane gas separation process and system |
| 06/17/1992 | EP0393029B1 Processing nitrogen-rich, hydrogen-rich, and olefin-rich gases with physical solvents |
| 06/17/1992 | EP0304480B1 Process for the reduction of nitrogen oxides in an effluent using sugar |
| 06/16/1992 | US5122505 Carbonate-free inorganic nitrates or oxides and process thereof |
| 06/16/1992 | US5122497 Catalyst for ammonia oxidation |
| 06/16/1992 | US5122355 For dry, high purity nitrogen obtained by separation from air |
| 06/11/1992 | CA2057253A1 Three stage membrane gas separation process and system |
| 06/11/1992 | CA2052967A1 Preparation of titanium nitride from organometallic precursors |
| 06/11/1992 | CA2052889A1 Preparation of aluminum oxynitride from organosiloxydihaloalanes |
| 06/10/1992 | CN1016960B Process and apparatus for removing oxides of nitrogen and sulfur from combustion gases |
| 06/09/1992 | US5120699 Platinum-on-graphite catalysts and the use thereof |
| 06/09/1992 | US5120689 Metallic or non-metallic oxide in matrix of carbon |
| 06/09/1992 | US5120508 Converting portion of nitrogen monoxide to nitrogen dioxide |
| 06/09/1992 | CA1303283C Polysilacyclobutasilazanes |
| 06/03/1992 | EP0488180A2 Electrically responsive light controlling device |
| 06/03/1992 | EP0487728A1 Process for manufacturing powdery aluminum nitride coated on the surface with oxide, oxynitride or nitride of yttrium. |
| 06/03/1992 | EP0487690A1 Method of forming dinitramide salts |
| 06/02/1992 | US5118488 Process for making whiskers, fibers and flakes of transition metal compounds |
| 06/02/1992 | CA1302050C Method of reducing the emission of no _gas from a liquid containing nitric acid |
| 06/02/1992 | CA1302046C Process for producing shaped boron nitride product |
| 05/29/1992 | WO1992008560A1 Method of making pressure-molded product from aluminum powder |
| 05/29/1992 | CA2056182A1 Composite material with a refractory fibrous reinforcement and its production process |
| 05/26/1992 | US5116679 Process for producing fibres composed of or coated with carbides or nitrides |
| 05/26/1992 | CA1301430C Method for production of high purity aluminum nitrides |
| 05/20/1992 | EP0486384A1 Industrial adsorbents comprising X-type zeolites with low silica content for the non cryogenic separation of air gases and process for their preparation |
| 05/20/1992 | EP0433324B1 Process for recovering nitrogen from gaseous mixtures containing oxygen and nitrogen by alternating pressure adsorption on carbon molecular sieves |
| 05/19/1992 | US5114887 Process for preparing oxynitride ceramic fibers |
| 05/19/1992 | US5114695 Process of producing aluminum and titanium nitrides |
| 05/19/1992 | US5114693 Process for the production of silicon nitride and product made according to the process |
| 05/19/1992 | US5114440 Separation of oxygen from air |
| 05/13/1992 | EP0216932B1 Rhombohedral polycrystalline boron nitride and process for its production |
| 05/13/1992 | CN1061046A Method for obtaining powdered refractory material and reactor for carrying out method |
| 05/12/1992 | US5112587 Catalytic oxidation of combustion gases with hydrogen peroxide |
| 05/12/1992 | US5112579 Continuous carbothermal reactor |
| 05/12/1992 | CA1300346C Superpurifier for nitrogen and process for purifying same |
| 05/07/1992 | DE4035205A1 Waste gas purificn. - by oxidative scrubbing using hydrogen per:oxide to remove nitrogen oxide(s), heavy metals and organic cpds. |
| 05/07/1992 | DE4034752A1 Single stage scrubber for chemical treatment of multiple toxic species in a gas stream - for oxidative treatment of incinerator and smelter flue gases |
| 05/06/1992 | CN1060792A Pressure swing adsorption method for separating gaseous mixtures |
| 05/05/1992 | US5110773 Carbo-thermal reduction of pre-mullite in nitrogen |
| 05/05/1992 | US5110768 Rapid solid-state synthesis of refractory materials |
| 05/05/1992 | US5110575 Process for producing sinterable crystalline aluminum nitride powder |
| 05/05/1992 | US5110569 Low temperature purification of gases |
| 05/05/1992 | US5110565 Apparatus for producing uniform, fine ceramic powder |
| 05/05/1992 | CA1300039C Pressure swing adsorption process and apparatus |
| 04/30/1992 | WO1992006921A1 Synthetic porous crystalline material, its synthesis and use |
| 04/29/1992 | EP0482222A1 Method for the separation of nitrogen and carbon dioxide and concentration of the latter in energysupplying oxydation- and combustion processes |
| 04/28/1992 | US5108967 Process for producing nonequiaxed silicon aluminum oxynitride |
| 04/28/1992 | US5108730 Low temperatue light off ammonia oxidation |
| 04/28/1992 | US5108713 Apparatus for the continuous production of high ultra-fine, aluminum nitride powder by the carbo-nitridization of alumina |
| 04/28/1992 | US5108467 Process for at least partially separating a gaseous component from a mixture of gaseous components |
| 04/22/1992 | EP0481563A1 Process for preparing fine aluminium nitride powder. |
| 04/22/1992 | EP0481218A1 A process for making modified carbon molecular sieve adsorbents |
| 04/21/1992 | US5106792 Conversion from hexagonal to cubic structure with high pressure and temperature |
| 04/21/1992 | US5106602 Low temperature catalytic reduction of nitrogen oxides |
| 04/16/1992 | WO1992006037A1 Carbonate-free inorganic nitrates or oxides and process thereof |