| Patents for C01C 1 - Ammonia; Compounds thereof (7,027) |
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| 09/29/1993 | CN1022232C Concentrating method for weak ammonia liquor containing synthetic ammonia and ammonium acid carbonate |
| 09/28/1993 | CA1322450C Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure |
| 09/15/1993 | CN1076183A Desorption process for partially removing CO2 from carbonized mother liquid and apparatus thereof |
| 09/14/1993 | US5244645 Process for removing NH3 from a liquid stream |
| 09/08/1993 | EP0559059A1 Low template clathrasile |
| 09/08/1993 | CN1075934A Low-template clathrasil |
| 09/03/1993 | CA2090538A1 Low-template clathrasil |
| 09/01/1993 | CN1075694A Process and installation for evaporation of ammonium chloride by combined alkali process |
| 08/31/1993 | US5240709 Stabilized solid thiocarbonate compositions and methods for making same |
| 08/31/1993 | US5240688 Process for the in-line hydrolysis of urea |
| 08/31/1993 | US5240524 Ammonium nitrate density modification |
| 08/25/1993 | CN1021904C Method for the production of ammonia and carbon dioxide |
| 08/18/1993 | EP0555940A1 Method of production of high purity silica and ammonium fluoride |
| 08/18/1993 | EP0555777A1 Method to carry out heterogeneous synthesis in converters with walls protected against high temperatures and converters obtained in this manner |
| 08/18/1993 | CN1075296A Process for conversion of gaseous hydrocarbons using water gas as heat source and its plant |
| 08/17/1993 | US5236671 Apparatus for ammonia synthesis |
| 08/17/1993 | CA1321361C Membrane unit turn-down control system |
| 08/13/1993 | CA2089008A1 Method to carry out heterogeneous synthesis in converters with walls protected against high temperatures and converters obtained in this manner |
| 08/12/1993 | DE4203807A1 Catalytic nitrogen oxide(s) redn. appts. for vehicles - comprises flow mixer urea evaporator hydrolysis catalyst, for exhaust gas treatment |
| 08/11/1993 | CN1075133A Production technology for high intensity, porous and granular ammonium nitrate |
| 08/10/1993 | CA1321161C Reboiler |
| 08/04/1993 | EP0553631A2 An integrated process for making methanol and ammonia |
| 07/27/1993 | US5230877 Method for removal of ammonia from a gas mixture |
| 07/27/1993 | US5230870 Method for converting noxious pollutants from flue gas into merchantable by-products |
| 07/20/1993 | US5228962 Separation/recovery of ammonium salts via electrodialytic water splitting |
| 07/14/1993 | EP0550525A1 High conversion ammonia synthesis. |
| 07/14/1993 | EP0550522A1 Sealing plug for pressure vessel. |
| 07/13/1993 | US5227149 Reacting liquid or supercritical fluid hydrogen sulfide with alkyl silicon compound, silicon tetrachloride, or trialkyl aluminum in autoclave, high pressure |
| 06/30/1993 | CN1073708A Industrial waste slag added lime-carbonized briquet |
| 06/29/1993 | US5223238 Method for treating ammonia and urea condensates |
| 06/23/1993 | EP0547284A1 Method for the recovery of calcium fluoride and ammonia from aqueous ammonium fluoride solution originating from waste from fuel element production |
| 06/22/1993 | US5221657 Coprecipitating aluminum, cobalt, ferrous hydroxides with alkali from aqueous solution of water soluble salts, partially oxidizing iron, doping with potassium compound, heating |
| 06/10/1993 | WO1993010896A1 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 06/09/1993 | EP0544710A1 Improvements in or relating to catalysts and getter systems |
| 06/09/1993 | CN1072871A Method for preparing catalyst for ammonia synthesis by laser fusion |
| 06/08/1993 | US5217506 Hydrogen-permeable composite metal membrane and uses thereof |
| 06/01/1993 | US5215674 Antifogging by mixing with soluble urea to speed up coalescing aerosol droplets |
| 05/18/1993 | US5211926 Process for extracting of disposing of ammonia or ammonia compounds from dust mixtures |
| 05/11/1993 | CA1317423C Cellulose acetate butyrate gas separation membranes |
| 05/05/1993 | CN1020462C Power-economizing method for oxygen-rich prodn of carbon black and synthetic ammonia |
| 05/04/1993 | US5207927 Catalytic oxidation using metal phthalocyanine; sulfation; water pollution control |
| 05/04/1993 | CA1317094C System to improve the efficiency of reactors for exothermic synthesis and more particularly for the reaction of ammonia |
| 04/28/1993 | EP0538647A1 Method for recovery of ammonia from residues of stack gases |
| 04/25/1993 | CA2081190A1 Process for the recovery of ammonia from flue gas residues |
| 04/21/1993 | CN1071141A Synthesis gas production |
| 04/14/1993 | CN1020270C Improved pressurizing technology for raw gas before entering conversion furnace in ammonia-making process flow |
| 04/07/1993 | CN1020236C Method of preparing ammonia |
| 03/31/1993 | CN1020187C Method for reclaiming conversion process waste heat by heat pump |
| 03/24/1993 | CN1070164A Method for producing synthetic ammonia from tail gas of oxygen-enriched carbon black |
| 03/10/1993 | EP0495089A4 Nitrogen oxides reduction using a urea hydrolysate |
| 03/09/1993 | US5192512 Apparatus for performing chemical reactions under pressure in a multi-stage reaction zone with external intermediary thermal conditioning |
| 03/09/1993 | US5192355 Manufacturing and using nitrogen fertilizer solutions on a farm |
| 03/03/1993 | EP0423177B1 Method of preparing ammonia |
| 03/02/1993 | US5190731 Heat exchange |
| 03/02/1993 | US5190677 Dispersion in waxes, oil, greases |
| 02/17/1993 | CN2127084Y Reverse flow type ammonia condensation separating tower |
| 02/11/1993 | DE4126808A1 Granulated ammonium sulphate prepn. with improved storage, transport etc. - by adding mixt. contg. urea, blue clay and disperse silica or PVA to crystalline ammonium sulphate before granulation |
| 02/11/1993 | DE4126807A1 Elevation of grain strength of ammonium sulphate granules - by addn. of a urea-formaldehyde precondensate in powdered from |
| 02/11/1993 | DE4126806A1 Granulated ammonium sulphate prepn. with better storage properties - by addn. of dicyandiamide and/or oligomeric caprolactam |
| 02/11/1993 | DE4126805A1 Granulated ammonium sulphate prepn. with improved storage properties - by addn. of hexa methylene tetramine and/or methyl cellulose prior to granulation |
| 02/11/1993 | DE4126804A1 Storable, granulated ammonim sulphate fertiliser prepn. - by adding starch (deriv.) to crystalline ammonium sulphate prior to granulation |
| 02/11/1993 | DE4126803A1 Granulated ammonium sulphate prodn. for use as fertiliser - by addn. of propene-maleic anhydride to crystallise ammonium sulphate prior to granulation |
| 02/11/1993 | DE4126802A1 Granulated ammonium sulphate prep. with improved spreading properties - by addn. of clay followed by thermal treatment, or by addn. of silicon di:oxide |
| 02/11/1993 | DE4126801A1 Storable, granulated ammonium sulphate fertiliser prepn. - by adding of a urea deriv. to crystalline ammonium sulphate |
| 02/10/1993 | CN1068753A Process and apparatus for treatment of nitric acid tail gas by ammonified ammonium nitrate absorption |
| 02/03/1993 | EP0525700A1 Process for surface treatment of granules |
| 02/02/1993 | CA2075143A1 Process for surface treatment of granules |
| 01/19/1993 | US5180570 Integrated process for making methanol and ammonia |
| 01/13/1993 | CN1067828A Organic and inorganic sulfur removing technology at normal temp |
| 01/07/1993 | EP0484534A4 Apparatus for carrying out a catalytic process in a fluidized bed |
| 12/23/1992 | CN1067223A Process for ammonia synthesis |
| 12/22/1992 | CA1311600C Process for the fabrication of concentrated solutions of ammonium nitrate |
| 12/15/1992 | US5171543 Reactor for exothermic heterogeneous synthesis reactions |
| 12/08/1992 | US5169717 Method of preparing ammonia |
| 12/03/1992 | DE4215918A1 Purificn. of ammonium sulphate soln. obtd. in cyclohexanone oxime mfr. - comprises treatment with ammonium peroxo:di:sulphate, for e.g. mfr. of persulphate(s), leather mordant, bacterial culture nutrient etc. |
| 11/24/1992 | US5165907 Method of production of high purity silica and ammonium fluoride |
| 11/19/1992 | EP0514037A1 Method for reducing the density of ammonium nitrate |
| 11/19/1992 | EP0458848B1 Process and apparatus for exothermic reactions |
| 11/11/1992 | EP0512079A1 Method of production of high purity fusible silica |
| 11/04/1992 | CN1065846A Process for preparing foamless ammonium bicarbonate additive |
| 11/04/1992 | CN1065845A Multilayer quenching and internal cooling type high-efficiency ammonia converter |
| 11/04/1992 | CN1065843A Autothermal steam reforming process |
| 11/04/1992 | CN1065815A Process for producing high-temp transformation catalyst |
| 10/28/1992 | CN1065641A Preparing method for strontium carbonate with by-products of sodium hydrosulfide and ammonium chloride |
| 10/21/1992 | CN1018728B Copper adding technology of synthetic ammonia copper solution scrubbing process |
| 10/06/1992 | US5152977 Gas flowing through a stacked, separated catalyst beds, heat exchanging, removal, cooling, circulation |
| 09/30/1992 | CN2117372U Electric heater of ammonia synthesizer |
| 09/23/1992 | EP0504471A1 Autothermal steam reforming process |
| 09/23/1992 | CN1064678A Recoverying device of ammonia from sulfanilamide by-product |
| 09/15/1992 | CA1307382C Modular manifold means for distributing a flow of a gas in a preferablycatalytic reactor |
| 09/01/1992 | CA1306846C Process for heterogeneous synthesis and related reactors |
| 08/26/1992 | CN1017971B Process and apparatus for pressure chemical reactions in multi-reactionary range having external intermediary thermoregulation |
| 08/26/1992 | CN1017970B Process to obtain optimal gas distribution in catalytic beds for heterogeneous reactions in gaseous phase |
| 08/25/1992 | US5141732 Process for the removal of ammonium sulphate from tarrich waste streams from the production of (meth) acrylonitrile |
| 08/25/1992 | US5141604 Absorption of hydrogen; desorption |
| 08/19/1992 | CN1017874B Pipe reactor |
| 08/18/1992 | US5139541 Hydrogen-permeable composite metal membrane |
| 08/13/1992 | DE4104029A1 Cooling cycle gas in ammonia synthesis plant - by mixing with synthesis gas after last compressor using by=pass to reduce capital and operating cost |
| 08/11/1992 | US5137547 Process and apparatus for preparing a gas component from a gas mixture |
| 08/05/1992 | CN1063303A Waste heat concentration and recovery process |