C01B 21 - Nitrogen; Compounds thereof

Patents for C01B 21 - Nitrogen; Compounds thereof (10,781)
11/1979
11/20/1979	US4175113 Purification of crude chlorophosphazene compounds by treatment with water
11/13/1979	US4174378 Refluxing ammonium iridium hexahalide and sulfamic acid
11/13/1979	US4174251 Method of selective gas etching on a silicon nitride layer
11/13/1979	CA1066024A1 Method of forming inorganic monomeric and polymeric complexes and products so produced
11/06/1979	CA1065576A1 Process for preparing finely-divided refractory powders
10/1979
10/31/1979	EP0004878A2 Purification of crude chlorophosphazene compounds by treatment with water
10/31/1979	EP0004877A1 A process for thermally polymerizing cyclic phosphazenes
10/30/1979	US4172884 Self-clinkering NF4 + compositions for NF3 -F2 gas generators and method of producing same
10/30/1979	US4172881 Tetrafluoroammonium hexafluorophosphate
10/30/1979	US4172754 Reaction of aluminum monoselenide, formed from aluminum and selenium, with nitrogen
10/23/1979	US4172108 Process for production of sialons
10/23/1979	CA1064834A1 Air separation by adsorption
10/17/1979	EP0004767A1 Removal of dinitrogen difluoride from atmospheres containing nitrogen trifluoride
10/17/1979	EP0004746A2 Gas-liquid contact process
10/09/1979	US4170630 Prevent buildup of product at reactant inlets
10/09/1979	US4170574 Steel catalyst support has high strength and porous surface
10/09/1979	US4170477 Method for making polysulfur nitride and product thereof
10/02/1979	US4169814 Process for producing catalysts comprising a carrier impregnated with a solution of chloroplatinic acid and barium hydroxide for decomposing ammonia by oxidation
09/1979
09/25/1979	US4169132 From aluminum chloride and tetrafluoroammonium bifluoride; oxidizer for high energy lasers and solid propellants
09/20/1979	WO1979000696A1 Sorption of gases
09/19/1979	EP0004080A2 Process for the preparation of dinitrogen monoxide
09/18/1979	CA1062629A1 Fractionation of air by adsorption
09/11/1979	US4167463 Nitrogen fixation with a high energy laser
09/04/1979	US4166842 Hydroxylamine purification via liquid/liquid extraction
08/1979
08/28/1979	US4165773 From fluorine atoms and azide radicals
08/14/1979	US4164553 Plasma arc process for the production of chemical products in power form
08/07/1979	US4163774 Burn rate modifier in nitrogen trifluoride-fluorine gas generators
08/07/1979	US4163773 Self-clinkering burning rate modifier for solid propellant NF3 -F.sub.2
08/07/1979	CA1059728A1 Process for manufacture of ferrosilicon nitride
07/1979
07/24/1979	CA1059040A1 Oxygen enriched air
07/24/1979	CA1058841A1 Method of obtaining cast refractory inorganic materials
07/24/1979	CA1058830A1 Removal of nitrogen oxides in form of ammonium sulfate from nitrogen oxides-containing gas
07/24/1979	CA1058829A1 Removal of nitrogen oxides from gas containing same by conversion to harmless nitrogen
07/17/1979	CA1058380A1 Production of phosphorus nitrides
07/10/1979	US4160811 Metathesis, sodium fluorides, hydrofluoric acid, tetrafluoroammonium hexafluoro(group 5)metalloid
07/03/1979	US4160013 Process for the oxidation of nitric oxide to nitrogen dioxide
06/1979
06/19/1979	CA1056577A1 Process for preparing hydroxylammonium salts
06/13/1979	EP0002178A1 Process for the preparation of hydroxylammonium salts
06/12/1979	US4158047 Pretreating platinum-palladium catalyst with an aqueous salt solution, inhibits decomposition and by-product formation
06/05/1979	US4157425 Catalytic process for the preparation of phosphazene polymers
05/1979
05/30/1979	EP0001972A1 Process for preparing hydroxylammonium salts in reactors made from stainless steel
05/30/1979	EP0001971A1 Process for preparing hydroxylammonium salts in reactors made of stainless steel
05/29/1979	US4156598 Purification of nitrogen trifluoride atmospheres
05/17/1979	WO1979000251A1 Adsorbent regeneration and gas separation utilizing dielectric heating
05/16/1979	EP0001834A1 Process for the absorption of nitrous vapours
05/16/1979	EP0001787A1 Hydroxylamine purification via cation exchange
05/15/1979	US4154806 Process for the production of nitrous oxide
05/08/1979	US4153527 Ionizing atmosphere, silicon dioxide and carbon
05/01/1979	US4152406 Self-clinkering NF4+ compositions for NF3 -F2 gas generators and method of producing same
04/1979
04/24/1979	CA1052979A1 Process for purification of phosphonitrilic chloride polymers
04/17/1979	US4150098 Method of producing cubic boron nitride
04/17/1979	US4149997 Heating rhodochrosite in air
04/10/1979	US4148863 Pressurization and heating of cubic boron nitride in the presence of a zinc compound catalyst
04/03/1979	US4147759 Method of manufacturing β'SiAlON compounds
04/03/1979	US4147623 Hydroxylamine purification via ion exclusion
04/03/1979	CA1052019A1 Continuous process for extracting nitrates from nitrate-containing solutions
04/03/1979	CA1051634A1 Manufacture of hexagonal boron nitride
03/1979
03/20/1979	US4145399 Scrubbing with alkali metal hydroxides
03/20/1979	US4145224 Titanium
03/20/1979	CA1050979A1 Process for purifying cyanuric acid
03/20/1979	CA1050730A1 Process for the preparation of nitric acid
03/13/1979	US4144092 Evaporation, crystallization of metal components
03/07/1979	EP0000902A1 Process for the preparation of hydroxyl ammonium salts
03/07/1979	EP0000901A1 Process for the preparation of hydroxyl ammonium salts
03/06/1979	US4142874 Separating gaseous nitrogen oxides from other gases by paramagnetic separation in a liquid media
03/06/1979	CA1049748A1 Hydroxy-aluminum nitrate polymer production from aluminum nitrate and urea
02/1979
02/27/1979	US4141963 To form metal oxides and nitrogen dioxide
02/27/1979	US4141959 Process for removing nitrogen oxides from combustion flue gas
02/13/1979	US4139598 Polyphosphonitriles
02/13/1979	US4139595 Producing nitric oxide and nitric acid
02/13/1979	CA1048292A1 High-content azide agricultural formulation
02/13/1979	CA1048229A1 Production of a ceramic material containing silicon, aluminium, oxygen and nitrogen
02/06/1979	US4138470 Oxidation to nitrous acid
01/1979
01/30/1979	US4137330 Metal salt catalyzed polymerization of (NPCl2) oligomers
01/24/1979	EP0000391A1 Process for the production of nitrous oxide
01/09/1979	US4133870 Process for preparing ammonium sulfamate
12/1978
12/19/1978	US4130628 Sulfur dioxide, nitrogen oxide, scrubbing, ferrous sulfide, water
12/19/1978	CA1044438A1 Water as a catalyst for the polymerization of chlorocyclophosphazenes
12/12/1978	US4129651 Method of removing nitrogen oxides in exhaust combustion gases
12/12/1978	US4129424 Gas separation
12/12/1978	CA1044215A1 Process for preparing catalysts containing platinum metal
12/05/1978	US4128623 Manufacture of a solution of nitrosylsulfuric acid in sulfuric acid
12/05/1978	CA1043762A1 Process for preparing platinum metal catalysts
12/05/1978	CA1043761A1 Process for reactivating platinum catalysts
11/1978
11/28/1978	US4127453 Exergy
11/07/1978	US4124734 Of a chlorine-containing oxidizer; fatty acid inner coating, sodium salt of fatty acid as outer coating
11/07/1978	US4124697 Process for the oxidation of hydrogen to water
11/07/1978	US4124695 Ceramic catalyst containing scandium, yttrium or rare earth metal
11/07/1978	US4124694 Process for the oxidation of hydrogen sulfide to sulfur trioxide
11/07/1978	US4124689 Process for the oxidation of carbon monoxide to carbon dioxide
11/07/1978	US4124687 Process for the oxidation of ammonia to nitrous oxide
11/07/1978	US4124567 Alkali metal or alkaline earth metal alcoholates
11/07/1978	US4124466 Enhancing chemical reactions
10/1978
10/31/1978	US4123503 Catalysis of phosphazene cyclics to polymer, using Lewis acid compounds
10/24/1978	US4122155 Preparation of silicon nitride powder
10/24/1978	US4122153 Nitrogen monoxide, nitrogen dioxide, reduction
10/24/1978	US4122152 Nitriding
10/24/1978	CA1040836A1 Catalytic preparation of soluble poly(dichlorophosphazenes)
10/17/1978	CA1040385A1 Large particle hexagonal boron nitride
10/03/1978	US4118539 Super hard-highly pure silicon nitrides having a preferred crystal face orientation

1 ... 96 97 98 99 100 101 102 103 104 105 106 107 108