| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
|---|
| 12/29/1997 | EP0691943B1 Aluminum nitride, aluminum nitride containing solid solutions and aluminum nitride composites prepared by combustion synthesis |
| 12/23/1997 | US5699680 Wires incorporating a helical component, assemblies thereof, and use of said assemblies as catalyzer and/or to recover precious metals |
| 12/18/1997 | DE19623351A1 Production of metal nitride powders |
| 12/17/1997 | CN1168192A Separation of gases |
| 12/17/1997 | CN1036703C Process for sorption of residual gas |
| 12/16/1997 | US5698177 Mixing ticl4 and o2 in the vapor phase with a corona electric field positioned across the reaction area of a laminar diffusion flame reactor provides anatase powders with high surface area |
| 12/10/1997 | EP0811576A2 Process and apparatus for the preparation of a cryogenic liquid fluid of high purity |
| 12/09/1997 | US5695731 Process for generating nitrogen for heat treatment |
| 12/03/1997 | CN1036576C Process for removal of impurities from hydrazine hydrate |
| 12/02/1997 | US5693581 Feeding gaseous mixture containing boron trihalide and ammonia to furnace, heating, adding hydrocarbon gas source to codeposit boron nitride and carbon, controlling flow of hydrocarbon gas to control concentration of carbon |
| 12/02/1997 | US5693302 Reacting gas with oxygen and a catalyst comprising gold or palladium particles on titanium dioxide support, wherein carbon monoxide and hydrogen impurities react with oxygen to form carbon dioxide and water |
| 12/02/1997 | US5693121 Providing predominantly nitrogen feed gas mixture under pressure to membrane separator unit comprising semi-permeable membrane with respect to which largest fraction of other gases is at least 20 times more permeable than nitrogen |
| 12/02/1997 | US5693102 Inorganic pigment for plastics |
| 12/02/1997 | US5692495 Catalytic oxidation of ammonia |
| 11/27/1997 | WO1997044276A1 Method for manufacturing hydroxylamine |
| 11/27/1997 | DE19721082A1 Cubic boron nitride production |
| 11/27/1997 | DE19620815A1 Molybdenum nitride preparation in non-pyrophoric form with large surface area and high catalytic activity |
| 11/26/1997 | EP0808797A2 Direct oxygen injection in nitric acid production |
| 11/25/1997 | US5690900 Ammonia oxidation catalyst |
| 11/25/1997 | CA2127465C Process for preparing an amorphous, extra-hard material based on boron nitride |
| 11/23/1997 | CA2205788A1 Direct oxygen injection in nitric acid production |
| 11/20/1997 | WO1997043212A1 Method for eliminating impurities contained in a gas compound |
| 11/19/1997 | EP0807600A1 Ultra-high purity nitrogen trifluoride production method, and unit therefor |
| 11/19/1997 | EP0807599A1 Process for the removal of impurities from gas compositions |
| 11/18/1997 | US5688730 Reacting aluminum nitride with alumina, grinding for aluminum oxynitride agglomerants |
| 11/18/1997 | US5688320 Reducing aluminum oxide in nitrogen atmosphere |
| 11/11/1997 | US5685172 Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide |
| 11/05/1997 | EP0804795A1 Separation of gases |
| 11/04/1997 | US5683668 Zwitterion polyamine adducts nitric oxide adducts |
| 11/04/1997 | US5683666 Method for the removal of sulfur dioxide and nitrogen oxides for a gaseous stream |
| 10/29/1997 | CN1036262C Process for preparation of powder for ceramics made of metal and/or metalloid nitride and/or carbide by flashing decomposition |
| 10/29/1997 | CN1036244C Apparatus for oxygen enrichment of air |
| 10/28/1997 | US5681883 Enhanced boron nitride composition and polymer based high thermal conductivity molding compound |
| 10/21/1997 | US5679133 Gas separations utilizing glassy polymer membranes at sub-ambient temperatures |
| 10/21/1997 | CA2085180C Nitrogen adsorption with a ca and/or sr exchanged lithium x-zeolite |
| 10/16/1997 | WO1997037758A1 Method of manufacturing a hydrogenation catalyst |
| 10/16/1997 | DE19614153A1 Verfahren zur Herstellung eines Hydrierungskatalysators A process for preparing a hydrogenation catalyst |
| 10/16/1997 | CA2250745A1 Method of manufacturing a hydrogenation catalyst |
| 10/15/1997 | EP0800883A2 Method for producing amorphous based metals |
| 10/15/1997 | EP0800852A2 Absorbent solutions for separating nitrogen from natural gas |
| 10/15/1997 | CN1162297A 氮化硼 BN |
| 10/15/1997 | CN1161878A Process for separation of mixtures of oxygen and of nitorgen employing adsorbent with improved porosity |
| 10/14/1997 | CA2078691C Process of removing nitrite from a silver nitrate solution |
| 10/12/1997 | CA2190422A1 Method for producing amorphous based metals |
| 10/09/1997 | WO1997036824A1 Magnetic molecular mixture |
| 10/09/1997 | WO1997036820A1 Modified composite silicon nitride powders for thermal coating technologies and process for their production |
| 10/08/1997 | EP0799794A1 Oxygen injection in nitric acid production |
| 10/08/1997 | EP0799793A1 Production of nitric oxide gas mixtures |
| 10/08/1997 | EP0799792A1 Process and catalyst for preparation of nitrous oxide |
| 10/08/1997 | CN1161249A Compact type magnetic air separation tech. with high efficiency and low energy consumption |
| 10/07/1997 | US5675028 Used for metal organic chemical vapor deposition of gallium, indium and aluminum nitrides on semiconductor substrates |
| 10/07/1997 | US5674465 Downward feeding of granules of alumina, carbon, a resin that generates carbon under pyrolysis, and nitrogen is feeding upwardly to perform carbonitriding of alumina |
| 10/07/1997 | US5674459 Hydrogen peroxide for flue gas desulfurization |
| 10/02/1997 | DE19612926A1 Modifizierte Siliciumnitrid-Kompositpulver für thermische Beschichtungstechnologien und Verfahren zu ihrer Herstellung Modified silicon nitride composite for thermal coating technologies and processes for their preparation |
| 10/01/1997 | EP0797539A1 Germanium and cadmium oxinitrides and derivatives thereof, preparation and precursors, and their applications as gas collectors and catalysts |
| 10/01/1997 | EP0658245B1 Process and apparatus for producing liquid carbon dioxide |
| 10/01/1997 | EP0540671B1 Preparing silicon nitride with densification aid, and results |
| 10/01/1997 | CA2200996A1 Oxygen injection in nitric acid production |
| 09/30/1997 | US5672553 Superplastic silicon nitride sintered body |
| 09/30/1997 | US5672385 Titanium nitride film-MOCVD method incorporating use of tetrakisdialkylaminotitanium as a source gas |
| 09/30/1997 | US5672382 Composite powder particle, composite body and method of preparation |
| 09/24/1997 | CN1160017A Process for preparing nm phosphide and nitride by heat synthesis in organic solvent |
| 09/23/1997 | US5670127 Reacting aqueous nitric acid with gaseous sulfur dioxide |
| 09/23/1997 | US5670125 Process for the purification of nitric oxide |
| 09/23/1997 | US5670036 Ammonia conversion to nitrogen using bromide electrolyte and hypobromite ions to dissolve ammonia to produce nitrogen by oxidation, regeneration of hypobromite ions with electricity |
| 09/23/1997 | CA2005066C Process for capturing nitrogen from air using gas separation membranes |
| 09/10/1997 | EP0794227A2 Enhanced boron nitride composition and polymer based high thermal conductivity molding compound |
| 09/10/1997 | EP0794160A1 Process for producing refractory powder from used contact masses resulting from the production of silanes and refractory products obtained therefrom |
| 09/09/1997 | US5665277 Nanoparticle synthesis apparatus and method |
| 09/05/1997 | CA2198422A1 Enhanced boron nitride composition and polymer based high thermal conductivity molding compound |
| 09/04/1997 | WO1997031860A1 Separation of calcium from metal compounds |
| 09/04/1997 | WO1997031711A1 Grid catalyst based on titanium zeolite or vanadium zeolite and on inert reticulated fabrics for use in the catalysis of oxidation reactions |
| 09/04/1997 | DE19607577A1 Netzkatalysator auf Basis von Titan- oder Vanadiumzeolithen und inerten Netzgeweben zur Beschleunigung von Oxidationsreaktionen Gauze catalyst based on titanium or vanadium zeolite and inert gauze fabrics for accelerating oxidation reactions |
| 09/04/1997 | CA2243463A1 Grid catalyst based on titanium zeolite or vanadium zeolite and on inert reticulated fabrics for use in the catalysis of oxidation reactions |
| 09/03/1997 | EP0792680A1 Process and apparatus for removing carbon monoxide from a gas stream |
| 09/03/1997 | EP0792679A1 Process and apparatus for removing oxygen and carbon monoxide from a gas stream |
| 09/03/1997 | EP0792185A1 Very high purity nitrogen by membrane separation |
| 09/03/1997 | EP0572634B1 Combined adjustable-flow rate nitrogen and oxygen production method |
| 09/02/1997 | US5663523 Method of propelling a projectile with ammonium azide |
| 09/02/1997 | US5662875 Continuous process for the preparation of silicon nitride by carbonitriding and silicon nitride thereby obtained |
| 09/02/1997 | US5662873 Catalytic oxidation of hydrogen and/or carbon monoxide |
| 08/27/1997 | CN1157798A High specific surface bi-component transition metal nitride and its synthesis |
| 08/27/1997 | CN1157797A Process and plant for extraction or recovery of acids from solutions these acids |
| 08/27/1997 | CN1157752A Reactive purge for solid electrolyte membrane gas separation |
| 08/21/1997 | DE19705022A1 Boron nitride crucible with specified absorption coefficient |
| 08/20/1997 | CN1157257A Process for preparation of hydroxylammonium salts |
| 08/20/1997 | CN1157186A Plant for treating at least one fluid and use for separation of at least one constituent of gas mixture |
| 08/19/1997 | US5659080 Synthetic method for forming ammonium dinitrammide (ADN) |
| 08/19/1997 | US5658370 Pressure swing adsorption |
| 08/13/1997 | EP0788999A2 Process for the manufacture of nitric oxide |
| 08/13/1997 | EP0788398A1 Filter material and process for producing no 2-free gases |
| 08/13/1997 | EP0563182B1 Method of producing a sintered carbonitride alloy for fine to medium milling |
| 08/13/1997 | CN1156974A Carbonaceous adsorbent, process for producing same, and method and apparatus for gas separation |
| 08/13/1997 | CN1156688A Magnetic field type oxygen enriched air producing apparatus |
| 08/12/1997 | US5656567 First catalytic material of platinum or alloy and second catalytic material of palladium or alloy positioned to act as a getter; oxidation of ammonia |
| 08/12/1997 | US5656557 Process for producing various gases for semiconductor production factories |
| 08/06/1997 | EP0787684A2 Process for nitrogen trifluoride synthesis |
| 08/06/1997 | EP0787683A1 Titanium nitride substituted with boron, coating based on this new compound of a substrate and shaped bodies comprising such a coating |
| 08/06/1997 | CN1156122A Process for producing barium azide |
| 08/05/1997 | CA1339229C Isocyanate- and isothiocyanate-modified polysilazane ceramic precursors |