| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 12/23/1980 | US4241034 Solvent extraction, crystallization |
| 12/23/1980 | CA1091894A1 Process for the preparation of concentrated solutions of hydrazine hydrates |
| 12/16/1980 | US4239833 Grid of precious metals for the recovery of platinum metals escaping from a catalyst during the reaction, and especially of platinum during oxidation of ammonia |
| 12/16/1980 | US4239741 Process for producing hydrazine sulfate |
| 12/16/1980 | CA1091424A1 Hard materials |
| 12/10/1980 | EP0020210A1 Gas adsorption agents especially useful for the separation of hydrogen from a gaseous phase |
| 12/10/1980 | EP0020051A1 Process for the purification of non-reacting gases |
| 12/10/1980 | EP0019927A1 Polymerization of inorganic element-containing monomers using plasma, and the formed product |
| 12/02/1980 | CA1090535A1 Preparation of nitrogen trifluoride |
| 11/25/1980 | US4235868 Staining with nitrido-bridged osmium or ruthenium compounds |
| 11/25/1980 | US4235858 And nitric oxide |
| 11/25/1980 | US4235857 Manufacturing silicon nitride particle using helium or argon and hydrogen to maintain gas pressure |
| 11/18/1980 | US4234554 Stable crystalline lithium nitride and process for its preparation |
| 11/18/1980 | CA1089665A1 Manufacturing and using nitrogen fertilizer solutions on a farm |
| 11/11/1980 | US4233279 Process for the synthesis of ammonium nitrite |
| 11/11/1980 | US4233185 Catalysts for oxidation and reduction |
| 11/11/1980 | CA1089249A2 Manufacturing and using nitrogen fertilizer solutions on a farm |
| 11/11/1980 | CA1089248A2 Manufacturing and using nitrogen fertilizer solutions on a farm |
| 10/28/1980 | CA1088502A1 Process for the preparation of supported catalysts |
| 10/28/1980 | CA1088337A1 Herbicidal agents containing n-(3,4-dichlorophenyl)- n',n'-dimethylthiourea |
| 10/28/1980 | CA1088273A1 Dissolution of polydihalophosphazenes |
| 10/21/1980 | US4229354 Complexing with compounds of sulfur or oxygen |
| 10/21/1980 | CA1087854A1 Gas generating composition |
| 10/21/1980 | CA1087853A1 Gas generating composition |
| 10/21/1980 | CA1087852A1 Gas generating composition |
| 10/21/1980 | CA1087851A1 Gas generating composition |
| 10/14/1980 | CA1087372A1 Preparation of alkali-metal azides |
| 10/07/1980 | US4226840 Process for the polymerization of cyclic polyhalophosphazenes using a catalyst composition of boron trihalide and oxygenated phosphorus compounds |
| 10/01/1980 | EP0016558A1 Vacuum swing adsorption for air fractionation |
| 10/01/1980 | EP0016430A1 Processes for producing ammonium sulfamate and ammonium nitriletrisulfonate |
| 10/01/1980 | EP0016372A1 Process for producing ammonium sulfamate |
| 09/30/1980 | US4225567 Gelation inhibition |
| 09/23/1980 | US4224296 Super hard-highly pure silicon nitrides, and a process and apparatus for producing the same |
| 09/23/1980 | CA1086024A1 Catalysis of cyclic polydichlorophosphazene compounds using lewis acid compounds as catalysts |
| 09/17/1980 | EP0015694A2 Method for forming an insulating film on a semiconductor substrate surface |
| 09/17/1980 | EP0015546A2 Active polymeric phosphorus nitrides that contain hydroxyl and halogen, process for their preparation and their use |
| 09/17/1980 | EP0015422A1 Method for producing powder of alpha-silicon nitride |
| 09/17/1980 | EP0015260A1 Complexes of manganese with substituted phosphines, their preparation and use for sorption of gases and adducts thus obtained. |
| 09/09/1980 | US4221761 Device for the quantitative reduction of nitrogen dioxide in gas mixtures |
| 09/02/1980 | US4220677 Polycrystalline superhard material and method of producing thereof |
| 09/02/1980 | US4220455 Carbon coated, bonded together by silicon carbide and silicon |
| 09/02/1980 | CA1085100A1 Smoke-suppressant additives for polyphosphazenes |
| 08/26/1980 | US4219536 Nitric acid process and disposal of waste liquids containing ammonium nitrites |
| 08/26/1980 | CA1084421A1 Recovery of gases from gaseous mixtures |
| 08/05/1980 | US4216191 Method of preparing inorganic-alkali metal salts |
| 08/05/1980 | CA1082878A1 Process for preparing high cyclic phosphonitrilic halides |
| 07/15/1980 | US4212671 Cemented carbide containing molybdenum tungsten carbonitride having WC type structure |
| 07/09/1980 | EP0012837A1 Process for producing ammonium sulfamate |
| 07/01/1980 | US4210628 Removal of nitrogen oxides |
| 07/01/1980 | CA1080436A1 Concentrated solutions of hydrazine hydrates |
| 06/25/1980 | EP0012628A1 Pelletizable, rapid and cool burning solid nitrogen gas generant suitable for automotive crash bag inflators and method for generation of nitrogen gas |
| 06/17/1980 | US4208391 Process for producing aqueous solution of calcium nitrite |
| 06/17/1980 | US4208215 Method for enhancing the crystallization rate of high purity amorphous Si3 N2 powder by intimate contact with a titanium containing material |
| 06/10/1980 | CA1079027A1 Separation of linear (npci2)n from cyclic (npci2)n |
| 06/03/1980 | US4206191 Preparation of lithium amide |
| 06/03/1980 | US4206190 Plasma arc production of silicon nitride |
| 05/28/1980 | EP0011117A1 Process for the preparation of phosphonitrilic chloride pleionomers |
| 05/27/1980 | US4205054 Process for recovery of nitric acid from nitrates |
| 05/27/1980 | CA1078364A1 Catalysts comprising substrate, intermediate oxide layer and catalytic layer |
| 05/20/1980 | US4203959 Inorganic nitrite and an inorganic sulfur dioxide source in an acidic aqueous solution |
| 05/20/1980 | US4203958 Desorption by fluidized beds by air under vacuum prior to flushing with nitrogen effluent |
| 05/20/1980 | US4203787 Pelletizable, rapid and cool burning solid nitrogen gas generant |
| 05/13/1980 | US4202765 From aqueous solution of hydroxylammonium salts in mixture with salts of other cations |
| 05/06/1980 | US4201757 Large boron nitride abrasive particles |
| 05/06/1980 | CA1076772A1 Recovery of refractory hard metal powder product |
| 04/30/1980 | EP0010257A1 Polycrystalline diamond and/or cubic boron nitride body and method for producing same |
| 04/15/1980 | US4198381 Controlling reactant feed rate |
| 04/08/1980 | CA1074979A1 Detection and measurement of no2 and o3 |
| 04/01/1980 | US4196179 Process for preparing high cyclic phosphonitrilic halides |
| 04/01/1980 | US4196178 Metallic halide, ammonia, solvents |
| 04/01/1980 | CA1074531A1 Method of producing a composition containing a large amount of vanadium and nitrogen |
| 03/25/1980 | CA1074302A1 Treatment of aromatic amines with gas mixtures derived from the oxidation of ammonia to effect diazotization/coupling |
| 03/25/1980 | CA1074301A1 Control of nitrogen oxide reactions in off-gases from the diazotization/coupling of aromatic amines |
| 03/18/1980 | US4193976 Defluorination using metal particles |
| 03/18/1980 | US4193855 Isotope separation by multiphoton dissociation of methylamine with an infrared laser |
| 03/18/1980 | CA1073659A1 Boron nitride crucible |
| 03/11/1980 | US4192856 Manufacture of hydroxylammonium salts |
| 03/05/1980 | EP0008488A1 Process of removing nitrogen oxides from gaseous mixtures |
| 03/05/1980 | EP0008479A1 Process for the preparation of a hydroxylamine salt |
| 03/05/1980 | EP0008414A1 Process for preparing low molecular weight linear phosphonitrilic chloride oligomers |
| 02/26/1980 | US4190424 Pressure swing adsorption to provide high purity oxy |
| 02/26/1980 | CA1072296A1 Production of cubic boron nitride |
| 02/20/1980 | EP0007956A1 Adsorbent regeneration and gas separation utilizing dielectric heating |
| 02/19/1980 | US4189405 Intermetallic catalysts |
| 02/19/1980 | CA1072049A1 Plasma-arc process for production of powders of chemical products |
| 02/19/1980 | CA1071834A2 Stannous imidodiphosphonate complex |
| 02/12/1980 | US4188381 Fungicides hydrazinium phosphites |
| 02/12/1980 | CA1071617A1 Process for preparing noble metal catalysts |
| 02/05/1980 | US4187083 Hard materials of BCN in tetrahedral form and method of making it |
| 01/23/1980 | EP0007239A2 Insoluble electrode comprising an electrodepositated ruthenium-iridium alloy |
| 01/23/1980 | EP0007175A1 Purification of nitrogen trifluoride atmospheres |
| 01/15/1980 | US4183906 Catalytic oxidation of ammonia |
| 01/15/1980 | CA1069675A1 Nitrogen oxide conversion process |
| 01/08/1980 | US4182835 Polyphosphazene copolymers containing nitroalkyl substituents |
| 01/08/1980 | US4182834 Reacting poly(dichlorophosphazene) with tetraalkyl titanate and alcohol, amine or mercaptan in presence of tertiary amine |
| 01/01/1980 | US4181707 Diolefin dimerization catalyst and method for producing nitrosyl halides of iron triad metals |
| 01/01/1980 | CA1069062A Air separation by adsorption |
| 12/18/1979 | US4179412 Platinum on a porous steel carrier; oxidation catalyst |
| 12/11/1979 | US4177645 From the exhaust gases obtained from the nitric acid oxidation of cycloalkanols and/or cycloalkanes by drying, compression, and cooling |
| 11/20/1979 | US4175116 Recycling manganese dioxide and nitric acid, hydrogen chloride |