| Patents for C01B 21 - Nitrogen; Compounds thereof (10,781) |
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| 10/03/1978 | US4118460 Removal of nitrogen oxides from industrial gases by use of oxidizing solutions in which nitrates are the oxidants |
| 09/26/1978 | US4117095 Method of making α type silicon nitride powder |
| 09/26/1978 | US4116891 From cyclic halophosphazenes, lewis acid |
| 09/26/1978 | US4116881 Granulated, calcium sulfate, potassium permanganate |
| 09/19/1978 | US4115526 Process for the preparation of reactive tungsten and derivatives thereof |
| 09/19/1978 | US4115523 Solid sulfur-resistant catalyst, oxygen-free |
| 09/19/1978 | US4115516 Method of treating exhaust gas discharged from nitric acid plant |
| 09/19/1978 | CA1038891A1 Ceramic materials |
| 09/19/1978 | CA1038597A1 Process for reacting nitric oxide with hydrogen |
| 08/29/1978 | US4110421 Catalytic process for the preparation of phosphazene polymers |
| 08/29/1978 | US4110183 Oxidation with actinic radiation to nitric acid |
| 08/22/1978 | US4108965 (NF4)2 NiF6 High energy solid propellant oxidizer and method of producing the same |
| 08/15/1978 | US4107279 Sulfur trioxide and ammonia, melts, mineral acid |
| 08/15/1978 | US4107276 Manufacture of hexagonal boron nitride |
| 08/15/1978 | US4107275 Method for producing NF4 BF4 |
| 08/08/1978 | US4105745 Catalyst and process for reducing nitrogen oxides |
| 08/08/1978 | US4105413 Catalytic converter apparatus, especially for oxides of nitrogen |
| 08/01/1978 | US4104191 Thermal conversion in the presence of an oxidant |
| 07/25/1978 | US4102986 Process for the continuous manufacture of nitrous oxide |
| 07/25/1978 | US4102984 Tetrafluoroammonium hexafluorophosphorus from pentafluorophosphorus, fluorine and nitrogen trifluoride |
| 07/18/1978 | US4101581 Reacting ammonia, chloramine, and a carbonyl compound; multistage, multizonal |
| 07/11/1978 | US4100263 Process for preparing cyanogen chloride and gaseous chlorine |
| 05/23/1978 | US4091081 Preparation of nitrogen trifluoride |
| 05/16/1978 | US4089931 Purification of boron nitride |
| 04/25/1978 | US4086327 Process for removing nitrogen oxides from gaseous mixtures |
| 04/04/1978 | US4082838 Process for preparing hydrazine |
| 04/04/1978 | US4082837 Ammonia to nitric oxide, ceramic catalyst |
| 03/28/1978 | US4081519 Process for oxidation of carbon monoxide with inorganic oxidizing agents |
| 03/28/1978 | US4081518 Countercurrent flow to nitric acid to absorb nitrogen oxide in an off gas |
| 03/28/1978 | US4081517 Oxidation to nitric acid |
| 03/28/1978 | US4081516 Separation of catalyst particles from a suspension of these particles in an aqueous hydroxyl-ammonium salt solution |
| 03/21/1978 | US4080508 From silica and coke, arc furnace |
| 03/21/1978 | US4080433 Passing carbon dioxide, nitrogen gas and water over a ceramic catalyst |
| 03/21/1978 | US4080432 Dissolution of polydihalophosphazenes |
| 03/21/1978 | US4080431 Groups 3-6 borides, carbides, or nitrides, filtration |
| 03/07/1978 | US4078046 Process for the catalytic oxidation of carbon monoxide with sulfur dioxide and water |
| 03/07/1978 | US4078044 Process for the catalytic oxidation of ammonia and methane to hydrogen cyanide |
| 02/28/1978 | US4076486 Partial combustion, pollution control |
| 02/21/1978 | US4075276 Boron nitride-boron nitride composites |
| 02/14/1978 | US4073866 Process for converting nitrogen dioxide into nitrogen monoxide |
| 02/14/1978 | US4073749 Process for manufacturing a catalyst for the synthesis of ammonia and product thereby obtained |
| 02/07/1978 | CA1025637A1 method of reduction of nitrous vapors in nitrous gaseous effluents |
| 01/24/1978 | US4070164 Adsorption-desorption pressure swing gas separation |
| 01/03/1978 | US4066736 Process for producing concentrated solutions of hydroxylammonium nitrate and hydroxylammonium perchlorate |
| 12/27/1977 | US4065548 Settling a layer of 1a azide1a hydroxide double salt from a slurry |
| 12/27/1977 | US4065546 Process for preparing halophosphazene mixtures |
| 12/27/1977 | US4065292 Herbicidal agents |
| 12/27/1977 | US4065272 Adsorbersmaterials, regeneration for respiration |
| 12/20/1977 | US4064221 Process for obtaining nitric acid of a concentration higher than the azeotropic concentration by means of the absorption of nitrogen oxides in water or diluted nitric acid |
| 12/13/1977 | US4062932 Process for the catalytic oxidation of hydrogen sulfide with sulfur dioxide |
| 12/13/1977 | US4062928 Process for the preparation of nitric acid |
| 12/13/1977 | US4062927 Noble metal catalyst |
| 12/13/1977 | US4062708 Azide gas generating composition |
| 11/01/1977 | US4056370 Calcium-aluminum-silicon-oxygen |
| 10/25/1977 | US4055545 Solid carboxylic acid |
| 10/18/1977 | US4054708 Film of pyrolytic graphite having bi-directional reinforcing properties |
| 10/11/1977 | US4053567 High-energy oxidizers and monopropellants |
| 10/11/1977 | US4053566 Method of making diammonium hydrazinium tetraperchlorate |
| 10/11/1977 | US4053555 Forming nitrous acid |
| 10/04/1977 | US4052336 Process for preparing noble metal catalysts |
| 09/27/1977 | US4051185 Reaction with ammonia to form alkali metal amides, which are reacted with methylamine |
| 09/13/1977 | US4048291 Process for preparing hydroxylammonium salts |
| 09/06/1977 | US4046857 Phosphorus pentachloride and ammonia |
| 08/30/1977 | US4045540 Process for the synthesis of ammonium nitrite |
| 08/30/1977 | US4045186 Mixing with lithium nitride, controlled heating and pressurization |
| 08/23/1977 | US4044104 Production of phosphorus nitrides |
| 08/16/1977 | US4042339 Production of nitric acid |
| 08/09/1977 | US4040814 Reacting vanadium trioxide with carbon |
| 08/02/1977 | US4039412 Nuclear reactor rod heat |
| 07/26/1977 | US4038372 From chlorine and ammonia |
| 07/26/1977 | US4038367 Process for the removal of SOx and NOx from waste gases using alkali metal or alkaline earth metal iodide |
| 07/19/1977 | US4036936 By hydrolysis of a ketazine or a hydrazone |
| 07/19/1977 | US4036935 Cobalt oxide-based catalytic substances for the oxidation of ammonia |
| 07/19/1977 | US4036934 Two stage process |
| 07/19/1977 | US4036653 Amorphous silicon nitride composition containing carbon, and vapor phase process |
| 07/19/1977 | US4036637 Dissolving in a molten metal solvent |
| 06/28/1977 | US4032618 Cobalt molybdenum sulfide catalyst |
| 06/21/1977 | US4031187 Process for the production of nitric acid |
| 06/14/1977 | US4029747 Method of preparing inorganic monomeric and polymeric complexes and products so produced |
| 06/14/1977 | US4029740 Method of producing metal nitrides |
| 06/14/1977 | US4029739 Process for removing nitrogen oxides from waste gas |
| 06/07/1977 | US4028425 Continuous process for concurrent production of dinitrotoluene and high-strength nitric acid |
| 05/31/1977 | US4026996 Oxidation of chlorine nitrate with ozone |
| 05/31/1977 | US4026838 Smoke-suppressant additives for polyphosphazenes |
| 05/31/1977 | US4026680 Air separation by adsorption |
| 05/24/1977 | US4025603 Using calcium sulfate and calcium hydroxide with a sodium chlorite oxidizer |
| 05/17/1977 | US4024219 Nitric acid in an oxidation column in a porous absorbing agent; nitrogen dioxide |
| 05/10/1977 | US4022872 Process for preparing finely-divided refractory powders |
| 05/10/1977 | US4022581 High pressure gas reactions, acid-soluble metal oxides |
| 05/03/1977 | US4021529 Non-catalytic synthesis of silicon oxynitride |
| 04/26/1977 | US4020052 Treatment of aromatic amines with gas mixtures derived from the oxidation of ammonia to effect diazotization/coupling |
| 04/26/1977 | US4020051 Control of nitrogen oxide reactions in off-gases from the diazotization/coupling of aromatic amines |
| 04/19/1977 | US4019076 Electrical commutators and slip-rings |
| 04/19/1977 | US4018873 Processes for the preparation of concentrated nitric acid |
| 04/19/1977 | US4018872 From nitrogen peroxide |
| 04/19/1977 | US4018822 Vulcanization inhibitors |
| 04/05/1977 | US4016244 Process for production of cubic boron nitride |
| 03/29/1977 | US4014979 Method of producing wurtzite-like boron nitride |
| 03/22/1977 | US4013429 Fractionation of air by adsorption |
| 03/15/1977 | US4012488 Process for the treatment of sulfur and nitrogen oxides formed during power generation |