Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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01/03/1993 | CA2072722A1 Multistage cascade-sweep process for membrane gas separation |
12/29/1992 | US5174979 Mixed ion-exchanged zeolites and processes for the use thereof in gas separations |
12/29/1992 | US5174975 Low temperature pyrolysis |
12/23/1992 | WO1992022499A1 Low pressure drop, high surface area ammonia oxidation catalyst and catalyst for production of hydrocyanic acid |
12/23/1992 | EP0519806A1 Continuous process for the preparation of aluminium nitride by carbonitriding of aluminium |
12/23/1992 | EP0519699A1 Low pressure drop, high surface area oxidation catalyst and catalyst for production of hydrocyanic acid |
12/23/1992 | EP0519492A2 Reaction sintered composites and shaped bodies containing boron nitride and method of making them |
12/23/1992 | CA2111197A1 Low pressure drop, high surface area ammonia oxidation catalyst and catalyst for production of hydrocyanic acid |
12/22/1992 | US5173462 Industrial adsorbents based on low-silica x zeolites, for non-cryogenic separation of air gases, and their manufacture process |
12/22/1992 | CA1311871C Stable methylpolydisilylazane polymers |
12/15/1992 | US5171557 Method for silicon nitride precursor solids recovery |
12/15/1992 | US5171385 High energy-density N2 O2 compound |
12/15/1992 | CA1311342C Process for producing nitrosyl fluoride |
12/09/1992 | EP0517570A1 Membrane generators having high flexibility |
12/09/1992 | EP0517365A1 Method and apparatus for silicon nitride precursor solids recovery |
12/09/1992 | EP0517228A1 Method for separating and recovering an acid |
12/09/1992 | EP0516933A1 Stabilization of aqueous hydroxylamine solutions |
12/08/1992 | US5169810 Process for forming tin-zirconia ceramics |
12/08/1992 | US5169613 Method for the preparation of boron nitride using ammonia-monohaloborane |
12/08/1992 | US5169412 Membrane air drying and separation operations |
12/08/1992 | CA1311107C Process for nitrogen oxides reduction with minimization of the production of other pollutants |
12/04/1992 | CA2070150A1 Membrane generators having high flexibility |
12/02/1992 | EP0516558A1 Method for refining calcium using nitride |
12/02/1992 | EP0516401A1 Purification of gas streams |
12/01/1992 | US5167935 Plant for producing nitric acid |
12/01/1992 | CA1310806C Process for the preparation of n-(dichlorophosphoryl)trichlorophosphazene |
11/29/1992 | CA2068093A1 Method and apparatus for silicon nitride precursor solids recovery |
11/26/1992 | WO1992020621A1 Catalyst and process for removal of sulphur compounds and nitrogen oxides from fluid streams |
11/25/1992 | EP0514647A1 Water-in-oil emulsions containing hydroxylamine |
11/25/1992 | CN1066429A Process for preparing aluminum nitride powder via controlled combustion nitridation |
11/24/1992 | US5166432 Catalytic decomposition of urea |
11/24/1992 | US5166001 Ceramic coatings |
11/24/1992 | CA2069139A1 Water-in-oil emulsions containing hydroxylamine |
11/19/1992 | EP0514143A1 Method of producing alkali metal azides |
11/19/1992 | EP0514058A1 Pressure swing adsorption apparatus |
11/17/1992 | US5164263 Aluminum nitride flakes and spheres |
11/17/1992 | US5163978 Dual product pressure swing adsorption process and system |
11/17/1992 | CA1310367C Electrochemically controlled superconductivity |
11/17/1992 | CA1310171C Process for the continuous production of high purity, ultra-fine,aluminum nitride powder by the carbo-nitridization of alumina |
11/12/1992 | WO1992019571A1 Gas generator |
11/12/1992 | WO1992019534A1 Process for preparing aluminium nitride powder via controlled combustion nitridation |
11/12/1992 | CA2106669A1 Process for preparing aluminium nitride powder via controlled combustion nitridation |
11/11/1992 | EP0512780A1 Method and apparatus for continuously separating nitrogen |
11/11/1992 | EP0512762A2 Process for preparing polycrystalline cubic boron nitride and resulting product |
11/11/1992 | EP0512424A1 Oxygen selective desiccants |
11/10/1992 | US5162558 Introducing a silazane compound into trihalogenoborane at a low reaction temperature; pyrolysis to boron nitride ceramics |
11/10/1992 | US5162272 Pyrolysis of a polysilazane melt; molded machine parts; stress, heat and corrosion resistance |
11/10/1992 | US5162076 Electrodialysis |
11/09/1992 | CA2067944A1 Oxygen selective desiccants |
11/04/1992 | EP0511490A1 Process for the production of finely divided crystalline silicon nitride |
11/04/1992 | EP0511489A1 Process for the synthesis of siliconnitride with a small crystal size |
11/04/1992 | CA2056509A1 Process for preparing polycrystalline cubic boron nitride and resulting product |
11/03/1992 | US5160722 Low pressure drop, high surface area ammonia oxidation catalyst |
11/03/1992 | US5160386 For inflatable air bags |
10/27/1992 | CA1309259C Hydrometallurgical arsenopyrite process |
10/27/1992 | CA1309230C Process for nitrogen oxides reduction and minimization of theproduction of other pollutants |
10/21/1992 | EP0509971A1 A process for the sorption of residual gas and especially nitrogen gas by means of a non-evaporated barium getter |
10/21/1992 | EP0509759A1 Recovery of abrasive grit with a nitric acid-containing medium. |
10/21/1992 | EP0509655A1 Non-segregating, gas-generating composition consisting of loosely-packed, azide-containing pellets with small siliceous particles there between |
10/21/1992 | CN2119416U High-pure nitrogen generator |
10/21/1992 | CN1065448A Moving bed process for carbothermally synthesizing nonoxide ceramic powders |
10/20/1992 | US5156830 Comminuting a slurry of silicon containing powder and water, dehydrating, nitriding, heating |
10/17/1992 | CA2060148A1 Particulate collection by condensing gas generant, air bag inflator |
10/16/1992 | CA2065964A1 Process using an acidic medium containing nitric acid |
10/13/1992 | US5155081 Platinum-on-graphite catalysts |
10/13/1992 | US5154907 Process for the continuous production of high purity, ultra-fine, aluminum nitride powder by the carbo-nitridization of alumina |
10/07/1992 | CN1065027A Process for production of gas-permeable nets of noble metals for catalytic processes |
10/06/1992 | US5152971 Production of high molecular weight, essentially uncrosslinked polychlorophosphazenes |
10/06/1992 | US5152813 Nitrogen adsorption with a Ca and/or Sr exchanged lithium X-zeolite |
10/06/1992 | CA1308231C Process for producing silicon nitride |
10/01/1992 | WO1992016457A1 Moving bed process for carbothermally synthesizing nonoxide ceramic powders |
10/01/1992 | WO1992016456A1 Method for preparing boron nitride |
10/01/1992 | WO1992013628A3 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures |
10/01/1992 | DE4209878A1 Nitrogen gas generating grains |
09/30/1992 | EP0505551A1 Carbonate-free inorganic nitrates or oxides and process for production thereof |
09/29/1992 | US5151395 Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor |
09/29/1992 | US5151260 Process for preparing fine powders of aluminum nitride |
09/29/1992 | US5150604 Method for determining the end of useful life of an inert gas purifier and apparatus therefore |
09/23/1992 | EP0504723A1 Preparation process of permeable precious metal nets for catalytic processes |
09/22/1992 | US5149515 Nitric Acid, Spray Roasting, Atomizing |
09/22/1992 | US5149514 Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates |
09/22/1992 | US5149381 Method of making a composite powder comprising nanocrystallites embedded in an amorphous phase |
09/22/1992 | CA1307648C Process for the reduction of nitrogen oxides in an effluent using sugar |
09/17/1992 | CA2063041A1 Process for the production of gas-permeable nets of noble metals for catalytic processes |
09/16/1992 | EP0503930A2 Production of titanium diboride and boron nitride powders |
09/15/1992 | US5147831 Low pressure reaction of titanium dioxide and carbon source in nitrogen atmosphere with controlled heating |
09/15/1992 | US5147623 Heating and pressurization of hexagonal boron nitride particles in the presenc eof an aluminum/magnesium alloy catalyst |
09/09/1992 | EP0502399A2 Siliconboronitride ceramic and precursors, process for their preparation as well as their use |
09/09/1992 | CN1064254A Pressure-changing adsorption process and device for air separation |
09/08/1992 | US5144809 Apparatus for production of nitrogen |
09/02/1992 | EP0501933A2 Process for the purification of fluorine-containing gases |
09/02/1992 | EP0296210B1 Method for producing ceramic powders |
09/01/1992 | US5143872 Method of regenerating inactive and poisoned platinum catalysts |
08/26/1992 | EP0500040A1 Process for kinetic gas-solid chromatographic separations |
08/26/1992 | EP0221899B1 Process for removing oxides of nitrogen and sulfur from combustion gases |
08/25/1992 | US5141730 Stabilization of hydroxylamine solutions |
08/25/1992 | US5141604 Absorption of hydrogen; desorption |
08/25/1992 | CA1306770C Process and apparatus for producing nitrogen |
08/22/1992 | CA2061006A1 Catalyst for polymerisation |
08/20/1992 | WO1992014568A1 Production of metal and metalloid nitrides |