| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 06/03/2004 | CA2506223A1 Production of gaseous chloramine |
| 06/03/2004 | CA2505700A1 Enrichment of oxygen for the production of hydrogen from hydrocarbons with co2 capture |
| 06/02/2004 | CN2618911Y Novel nitric acid concentration tower distributor |
| 06/01/2004 | US6743745 Process for production of molecular sieve adsorbent blends |
| 06/01/2004 | US6743404 Method for the catalytic decomposition of N2O |
| 05/27/2004 | WO2004043898A1 A process for the mononitration of alkanediols |
| 05/27/2004 | US20040099142 Gas purification system with an integrated hydrogen sorption and filter assembly |
| 05/26/2004 | EP1421029A1 Silicon carbonitride with spinel structure |
| 05/26/2004 | EP1324815B1 Gas permeation device and method |
| 05/26/2004 | EP1064224B1 Synthesis method for powder ceramic complexes of refractory metals |
| 05/26/2004 | CN1500022A Method and appts. for producing magnetic rare earth alloy powder, method for prodn. bonded magnet, method for producing rare earth sintering magnet, and method and appts. for improving purity of inert |
| 05/26/2004 | CN1498851A Refining method of inert gas |
| 05/26/2004 | CN1150966C Variable adsorption process for separating methane/nitrogen gas mixture with large-surface activated carbon |
| 05/21/2004 | WO2004022797A9 Preparation of alloys by the armstrong method |
| 05/20/2004 | US20040097757 Method for fluorinating a compound comprising a halosulphonyl or dihalophosphonyl group |
| 05/20/2004 | US20040096745 Lithium ion conductor and all-solid lithium ion rechargeable battery |
| 05/20/2004 | US20040096387 Method for nitrogen trifluoride production |
| 05/20/2004 | US20040096386 Method for nitrogen trifluoride production |
| 05/18/2004 | US6737463 Barium ferrite filler; magnetic tapes |
| 05/18/2004 | US6737034 Purification of nitric acid |
| 05/13/2004 | WO2004039722A1 Method for production of nitrate-containing products from undercooling melts |
| 05/12/2004 | EP1417093A1 A high solids hbn slurry hbn paste spherical hbn powder, and methods of making and using them |
| 05/12/2004 | CN1149175C Process for purifying gas |
| 05/11/2004 | US6733571 Gas purification system with an integrated hydrogen sorption and filter assembly |
| 05/06/2004 | WO2004022223A3 Adsorption mass and method for removing carbon monoxide from flows of material |
| 05/06/2004 | US20040086577 Process for the synthesis of monochloramine |
| 05/06/2004 | US20040086442 By adding at least one composition comprising copper and/or cobalt to the regenerator of the fluid catalytic cracking (FCC) unit |
| 05/06/2004 | US20040083973 Film forming method and film forming device |
| 05/06/2004 | EP1415953A1 Process for the preparation of monochloramine |
| 05/06/2004 | EP1414743A1 Method for the filtration of an aqueous reaction mixture arising in the production of hydroxylamine |
| 04/29/2004 | US20040079197 Preparation of alloys by the armstrong method |
| 04/29/2004 | US20040079196 Injecting, reduction halide vapor into liquid metal; controlling temperature |
| 04/28/2004 | EP1412175A1 Insulating and functionalizing fine metal-containing particles with comformal ultra-thin films |
| 04/28/2004 | EP1412074A1 Catalyst or sorbent beds |
| 04/28/2004 | EP1261750B1 Wet process for refining silver bullion including gold separation |
| 04/28/2004 | EP1001910B1 Method for producing nitric acid and device for carrying out said method |
| 04/28/2004 | CN1492836A Method for performing themral reactions between reactants and furnace for same |
| 04/28/2004 | CN1491894A Process for producing fine calcium carbonate by wet carbon solidification method using industrial flue |
| 04/28/2004 | CN1491885A One-dimension nano structure of silicon nitride and silicon carbide and its preparing method |
| 04/28/2004 | CN1147426C Process for preparation of self-spread high-temp. synthesizing ferro-silicon nitride powder |
| 04/28/2004 | CN1147346C Gas purification system with an integrated hydrogen absorption and filter assembly |
| 04/27/2004 | US6726992 Nano-engineered phosphors and related nanotechnology |
| 04/27/2004 | CA2140549C Manufacture of gas hydrates |
| 04/22/2004 | WO2004010454A3 Plasma reactor for carrying out gas reactions and method for the plasma-supported reaction of gases |
| 04/22/2004 | US20040076572 Milling; crystallization; improved aspect ratio |
| 04/21/2004 | EP1409776A1 Method of making nanotube-based material with enhanced electron field emission properties |
| 04/21/2004 | EP1409402A2 Zeolite ssz-59 |
| 04/21/2004 | EP1409401A1 Method for producing an aqueous hydroxylamine solution devoid of salt |
| 04/21/2004 | EP1056937A4 Combustion engine air supply system |
| 04/21/2004 | CN1490243A Hot synthetic preparation of metastable rock salt phase nano gallium nitride in solvent |
| 04/20/2004 | US6723153 Introducing mixture of sulfur hexafluoride(sf6) and nitrogen(n2) to a membrane separator comprising separating membrane which preferentially passes n2 to obtain sf6 enriched retentate and a n2 enriched permeate |
| 04/20/2004 | CA2137251C Method of making moisture resistant aluminum nitride powder and powder produced thereby |
| 04/15/2004 | WO2004030806A1 Methdo and equipment for treating harmful gases |
| 04/14/2004 | EP1406833A1 Method for producing an aqueous hydroxylamine solution devoid of salt |
| 04/14/2004 | EP1406832A1 Method for the production of a salt-free aqueous hydroxylamine solution |
| 04/14/2004 | CN1145658C Process for preparing catalytic component |
| 04/08/2004 | US20040067837 Silicon aluminum oxynitride; powder metallurgy ; high energy ball milling; heat resistance, shockproof |
| 04/08/2004 | US20040067355 Nanoscale powders dispersed on coarser carrier powders |
| 04/08/2004 | US20040065170 Method for producing nano-structured materials |
| 04/07/2004 | EP1404613A1 Process for the preparation of hydroxylammonium |
| 04/01/2004 | WO2004027111A1 Electrode, solid element and device using the same |
| 04/01/2004 | US20040063052 Novel concept for generating power via an inorganic nitrogen cycle, based on sand as the starting material and producing higher silanes |
| 04/01/2004 | US20040062703 Recovery of usable metal nitrite produced by removal of undesirable organic matter from solutions of metal nitrite generated as by-products in manufacture of thermoplastic resins; contacting with lignite-based activated carbon product |
| 03/31/2004 | EP1119653B1 Simulated diamond gemstones formed of aluminum nitride and aluminum nitride:silicon carbide alloys |
| 03/31/2004 | CN1485590A Electric oven and method of controlling the same |
| 03/31/2004 | CN1485134A Ammoxidation catalyst and the application method thereof |
| 03/31/2004 | CN1143819C Titania nitriding process for preparing nanometer titanium nitride powder |
| 03/30/2004 | US6713176 Processing and manufacturing methods enabled using non-stoichiometric nanomaterials |
| 03/24/2004 | EP1399415A1 Method for making 2,2,4,4-tetramethyl-3-pentanone oxime and hydroxylammonium salts |
| 03/24/2004 | EP1261547B1 Removal of laughing gas in nitric acid production |
| 03/23/2004 | US6709566 Shaping electrode removes material under a potential difference to controllably shape to a desired contour |
| 03/23/2004 | US6709471 Multilayer nanotube; small diameter single-layer carbon nanotube within larger, isolated from eachother by insulating boron nitride layer |
| 03/18/2004 | WO2004022797A1 Preparation of alloys by the armstrong method |
| 03/18/2004 | WO2004022269A2 Method and apparatus for controlling the size of powder produced by the armstrong process |
| 03/18/2004 | WO2004022223A2 Adsorption mass and method for removing carbon monoxide from flows of material |
| 03/18/2004 | US20040050094 Refrigeration of gases and filtration using membranes to remove condensates, then reusing for consolidation and drawing of fibers; cryogenics |
| 03/18/2004 | CA2500909A1 Preparation of alloys by the armstrong method |
| 03/18/2004 | CA2498024A1 Method and apparatus for controlling the size of powder produced by the armstrong process |
| 03/17/2004 | EP1398586A2 Method and apparatus for producing a purified liquid |
| 03/17/2004 | EP1397325A1 A method of producing a metal-containing single-phase composition. |
| 03/17/2004 | EP0994829B1 Thermally-stabilized prilled ammonium dinitramide particles, and process for making the same |
| 03/17/2004 | CN1482059A System for preparing nanometer silicon nitride powder |
| 03/17/2004 | CN1482058A Gas phase synthetic apparatus for preparing nanometer silicon nitride powder |
| 03/17/2004 | CN1142089C Gas-phase synthesis process of superfine silicon nitride powder |
| 03/17/2004 | CN1142088C Preparing process of high-efficiency nm-class semiconductor material |
| 03/11/2004 | WO2004020333A1 Method for recovering nitrogen from air |
| 03/11/2004 | DE10241529A1 Adsorptionsmasse und Verfahren zur Entfernung von Kohlenmonoxid aus Stoffströmen And adsorption process for removing carbon monoxide from streams |
| 03/10/2004 | CN1480393A Bamboo Knotlike nano carbon tube material containing nitrogen and synthetic method |
| 03/09/2004 | US6702874 Gas separation apparatus and gas separation method |
| 03/04/2004 | US20040044162 Oxidation and heat resistance; dielectrics; forming boron nitride from organoboron polymer |
| 03/04/2004 | US20040041257 Adhesion method and electronic component |
| 03/03/2004 | EP1394107A1 Process for producing aluminum nitride |
| 03/02/2004 | US6699584 Nitric acid-based salt granule and aggregate thereof |
| 03/02/2004 | US6699452 Separation of a hydroxylammonium salt solution from an aqueous reaction mixture comprising solid catalyst particles by means of filtration, characterized in that cake filtration through an asymmetric filter is applied |
| 02/26/2004 | US20040039231 Process for the production of cyclohexanone oxime |
| 02/26/2004 | US20040039230 Phosphate-containing medium cycled from hydroxylammonium synthesis zone to cyclohexanone oxime synthesis zone and back, wherein hydroxylammonium formed by reducing nitrate is reacted with cyclohexanone to form cyclohexanone oxime |
| 02/26/2004 | US20040035148 Thermodynamically efficient purified liquid production method and apparatus using an improved purification chamber; for carbon dioxide, nitrous oxide, ammonia and fluorocarbons |
| 02/25/2004 | EP1390293A2 Process for the preparation of ammonia oxidation |
| 02/25/2004 | EP1237647B1 Cubic boron nitride clusters |
| 02/19/2004 | WO2004014793A1 FLUE GAS TREATMENTS TO REDUCE NOx AND CO EMISSIONS |