| Patents for C01C 1 - Ammonia; Compounds thereof (7,027) |
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| 03/01/2001 | DE19940573A1 Verfahren zur Aufarbeitung einer salzhaltigen Säurelösung und Anlage zur Durchführung des Verfahrens A process for working a salt-containing acid solution, and plant for carrying out the method |
| 02/28/2001 | EP1078677A2 Method and apparatus for regulating mixed gas concentration |
| 02/28/2001 | EP0831978B1 On-site ammonia purification for semiconductor manufacture |
| 02/28/2001 | CN1285312A novel process for preparing fodder grade calcium hydrophosphate and by-product calcium carbonate and ammonium chloride by hydrochloric acid method |
| 02/27/2001 | US6193944 Digesting spent potliner material in acid digester to produce a gas and hydrogen cyanide gas and water; removing gas; heating recovered silicon tetrafluoride gas to form fumed silica and hydrogen fluoride; recovering fumed silica |
| 02/22/2001 | WO2001012549A1 Process for treating a mixture comprising an ammonium sulfate solution phase and an aqueous lactam phase |
| 02/22/2001 | WO2001012548A1 Method for the evaporation of an aqueous solution containing ammonia |
| 02/22/2001 | WO2001012544A1 Production of fumed silica |
| 02/22/2001 | CA2381389A1 Production of fumed silica |
| 02/22/2001 | CA2380293A1 Method for the evaporation of an aqueous solution containing ammonia |
| 02/15/2001 | WO2001010979A1 Integrated process for converting hydrocarbon gas to liquids |
| 02/14/2001 | CN1283588A Process for preparing potassium sulfate with more by-products |
| 02/13/2001 | US6187275 Digesting spent potliner using acid to form gaseous hydrogen fluoride which is converted to hydrofluoric acid and reacted with alumina trihydrate to form aluminum trifluoride |
| 02/13/2001 | CA2005077C Reactors for heterogeneous synthesis |
| 02/08/2001 | WO2001009038A2 Natural gas conversion to hydrocarbons and ammonia |
| 02/06/2001 | US6183720 Process and apparatus for producing high-purity chemicals for the microelectronics industry |
| 01/31/2001 | CN1281821A High-effective ammonia synthesis ring process |
| 01/31/2001 | CN1061322C Process for regenerating accumulator desulfurating agent |
| 01/30/2001 | US6178774 Process and plant for the combined production of an ammonia synthesis mixture and carbon monoxide |
| 01/10/2001 | EP1067093A1 Method for the preparation of granular ammonium sulphate |
| 01/09/2001 | US6171570 Converting ammonia synthesis loop purge gas containing nitrogen and hydrogen to form additional ammonia. |
| 01/03/2001 | EP1065168A1 Ammonia purification method |
| 01/03/2001 | EP1064667A1 Polymer formulations for gettering hydrogen |
| 01/03/2001 | EP1064227A1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO 2? PRODUCTION |
| 12/27/2000 | EP1062037A1 Catalyst for the synthesis of ammonia from hydrogen and nitrogen |
| 12/20/2000 | EP1060125A1 Process and converter for the preparation of ammonia |
| 12/13/2000 | EP1059116A2 Hydrogen removing apparatus |
| 12/13/2000 | CN1276342A Ordinary-pressure synthesis of ammonia |
| 12/13/2000 | CN1059357C Heterogeneous exothermic synthesis reactor, its retrofitting method and method for carrying out said reaction |
| 12/12/2000 | US6159892 Catalyst supports, supported catalysts and methods of making and using the same |
| 12/12/2000 | US6159440 Process for production of ammonium thiosulphate |
| 12/06/2000 | CN1275438A Catalyst for nitrogen chemical reaction and application thereof |
| 11/29/2000 | CN1274617A Catalyst for chemical reaction of nitrogen element and its application |
| 11/22/2000 | CN2406723Y Ammonia synthesizing tower with longitudinal port waveform distribution |
| 11/16/2000 | WO2000068143A1 Process for the nondestructive heating and supply of hot ammonia or hot ammonia containing feed gas |
| 11/16/2000 | WO2000050123B1 Method for removing ammonia from ammonia contaminated fly ash |
| 11/16/2000 | CA2370185A1 Process for the nondestructive heating and supply of hot ammonia or hot ammonia containing feed gas |
| 11/14/2000 | CA2038995C Autothermal steam reforming process |
| 11/02/2000 | WO2000064809A1 Method of recovering fumed silica from spent potliner |
| 11/02/2000 | EP1048343A2 Heat exchanger type reactor |
| 11/02/2000 | CA2371248A1 Method of recovering fumed silica from spent potliner |
| 10/31/2000 | US6139807 Apparatus for removing SO2 from flue gases and for producing ammonium sulfate solution |
| 10/25/2000 | CN1270957A Method for simultaneously modernization of ammonia producing equipment and urea producing equipment |
| 10/18/2000 | CN1270081A Efficient catalyst for synthesizing ammonia and its preparing process |
| 10/18/2000 | CN1057477C Steam purifying method and apparatus for change-over system of synthetic ammonia plant |
| 10/17/2000 | US6132687 Horizontal ammonia converter adapted for high activity catalyst |
| 10/05/2000 | WO2000058528A1 Method of treating spent potliner material from aluminum reduction cells |
| 10/04/2000 | EP1041038A1 Method for the simultaneous modernization of a plant for ammonia production and a plant for urea production |
| 10/04/2000 | CN1057064C Dry recovery process for by-products carbon black during heavy oil gasification |
| 09/26/2000 | US6123908 Method of treating spent potliner material from aluminum reduction cells |
| 09/20/2000 | EP1036592A2 Process for the preparation of ammonia and ammonia synthesis catalyst |
| 09/20/2000 | CN1266815A Process for producing ammonia and catalyst of synthesizing ammonia |
| 09/15/2000 | CA2300520A1 Process for the preparation of ammonia and ammonia synthesis catalyst |
| 09/12/2000 | US6117407 Method for the generation of ammonia |
| 09/12/2000 | US6117406 Process for manufacturing ammonium salts |
| 08/31/2000 | WO2000050123A1 Method for removing ammonia from ammonia contaminated fly ash |
| 08/30/2000 | CN1055901C Combined prodn. process of potassium carbonate and light magnesium carbonate |
| 08/23/2000 | CN1264317A Method for ammonia production |
| 08/22/2000 | US6106796 Precipitating sodium bicarbonate; centrifuging, washing, saturating, conditioning by heating to release carbon dioxide and ammonia; decomposition with sulfuric acid |
| 08/22/2000 | US6106793 Process for the ammonia and methanol co-production |
| 08/16/2000 | CN2391866Y Multi-layer thermal insulation quassi-full radial tower for ammonia synthesis tower |
| 08/10/2000 | WO2000046150A1 Utilizing purge gas from ammonia synthesis |
| 08/10/2000 | CA2354537A1 Utilizing purge gas from ammonia synthesis |
| 08/08/2000 | US6098424 Process and plant for production of carbon monoxide and hydrogen |
| 07/25/2000 | US6093380 Providing a safe and economical supply of ammonia, from a urea feedstock, when ammonia is desired or necessary to initiate, cause and/or supplement the removal of air pollutants from an exhaust gas stream; pollution control |
| 07/20/2000 | WO2000041967A1 Ammonia recovery |
| 07/20/2000 | DE19902824A1 Mixed catalyst use e.g. in exhaust gas treatment consists of an element or oxide of group IV b, group V band group VII b |
| 07/20/2000 | CA2359930A1 Ammonia recovery |
| 07/19/2000 | EP1019321A1 Methods for the production of ammonia from urea and uses thereof |
| 07/13/2000 | WO2000040324A1 Process for separation of ammonia gas and a solid adsorbent composition |
| 07/12/2000 | CN1054355C Method and device for recovering transition and reaction heat from wall heat exchanger type saturation tower |
| 07/11/2000 | US6086840 Generation synthesis gas from oxygen and feedstock; cryogenic carbon dioxide recovering |
| 07/11/2000 | US6086722 Minimizing evaporator scaling and recovery of salts during gasification |
| 07/06/2000 | DE19963283A1 Two-phase ammonia, for metal organic chemical vapor deposition of gallium nitride based layers in production of semiconductor devices such as blue-emitting light emitting devices, has a liquid phase with a specified low water content |
| 07/05/2000 | EP1015097A1 Method for ammonia production |
| 07/05/2000 | CN1258641A Potassium sulfate producing process of mixing and directly heating potassium chloride and ammonium sulfate |
| 06/20/2000 | US6077494 Method for removing ammonia from ammonia contaminated fly ash |
| 06/20/2000 | US6077491 Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal |
| 06/07/2000 | CN1255457A Process for purifying and reclaiming regenerated acid in coking plant |
| 06/07/2000 | CN1053165C Method for prodn. of high-purity iron oxide red by using ammonia-soda process |
| 06/02/2000 | WO2000030973A1 Process for making ammonia from heterogeneous feedstock |
| 06/02/2000 | CA2352576A1 Process for making ammonia from heterogeneous feedstock |
| 05/31/2000 | CN1254711A Process for recovering useful substances from waste liquid generated in preparing process of caprolactam |
| 05/31/2000 | CN1052961C Method for producing ammonium sulfate by using waste ammonia water |
| 05/24/2000 | EP1002571A1 Reactor for highly exothermic reactions |
| 05/23/2000 | US6065306 Temperature swing adsorption; condensation, vaporization, pressurization |
| 05/18/2000 | DE19851109A1 Reaktor zur Durchführung katalytischer Reaktionen mit starker Wärmetönung Reactor for carrying out catalytic reactions with high enthalpy change |
| 05/16/2000 | US6063356 Introducing a flow of hydrogen fluoride vapor comprising a low concentration of arsenic into an ionic purifier containing high purity water which contacts the flow of hydrogen fluoride, and dischrges high purity hydrogen fluroide |
| 05/16/2000 | US6063352 Branching scrubbing liquid discharge from scrubber to an oxidation unit for oxidizing ammonium sulfite to ammonium sulfate, before returning to scrubbing liquid from oxidation unit, adding ammonium hydroxide to scrubbing unit |
| 05/11/2000 | WO2000026139A1 Process and converter for the preparation of ammonia |
| 05/11/2000 | CA2347379A1 Process and converter for the preparation of ammonia |
| 05/10/2000 | EP0862536B1 Process for the ammonia and methanol co-production |
| 05/10/2000 | CN2377246Y Separation type hot pipe ammonia synthesis converter |
| 05/09/2000 | US6059995 Process and preparation of hydrogen-rich gas |
| 05/09/2000 | CA2063811C Nitrogen oxides reduction using a urea hydrolysate |
| 04/27/2000 | WO2000023379A1 Method for obtaining ammonia from waste water containing nh3 and acid gases |
| 04/20/2000 | WO2000021886A1 Method of ammonium sulfate purification |
| 04/19/2000 | EP0994072A1 Isothermal ammonia converter |
| 04/19/2000 | CN1051530C Process for producing potasium sulfate by cold salting-out circulation method |
| 04/19/2000 | CN1051525C Process for prepn. of hydroxylammonium salts |