| Patents for C01C 1 - Ammonia; Compounds thereof (7,027) |
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| 08/04/1992 | US5135722 Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure |
| 08/02/1992 | WO1992013630A1 Separation/recovery of ammonium salts via electrodialytic water splitting |
| 08/02/1992 | CA2078223A1 Separation/recovery of ammonium salts via electrodialytic water splitting |
| 07/29/1992 | EP0495937A1 Continuous production of fertilizing salts with derivatives of strontium and gypsum |
| 07/22/1992 | EP0495089A1 Nitrogen oxides reduction using a urea hydrolysate. |
| 07/22/1992 | EP0494933A1 Tetrathiocarbonate process |
| 07/22/1992 | CN1062857A Device and method for holding catalyst in radial flow reactor |
| 07/14/1992 | US5130098 System to improve the efficiency of heterogeneous reactors for exothermic synthesis and more particularly for the reaction of ammonia |
| 07/14/1992 | US5130026 Process and apparatus for removing ammonium from aqueous liquids |
| 07/07/1992 | CA1304697C Ammonia separation using semipermeable membranes |
| 07/07/1992 | CA1304696C Ammonia separation using ion exchange polymeric membranes and sorbents |
| 07/02/1992 | DE4142919A1 Drying of salts for fire extinguisher powder production |
| 07/01/1992 | EP0492540A1 Process for the recovery or disposal of ammonium or ammonium compounds from dust mixtures and wash waters |
| 07/01/1992 | EP0492539A1 Process for the recovery or disposal of ammonium or ammonium compounds from dust mixtures |
| 07/01/1992 | CN1017234B Process for the production of ammonia natural gas |
| 06/23/1992 | CA1303824C Device for nitrogen and hydrogen treatment with the aid of a catalyst |
| 06/22/1992 | CA2058243A1 Process for extracting or disposing of ammonia or ammonia compounds from dust mixtures and washing water |
| 06/10/1992 | CN1061760A Process for decomposition of aqueous ammonium chloride solution and process for production of sodium carbonate |
| 06/10/1992 | CN1061759A Process for prodn. of ammonia water reagent using recovered ammonia from relief gas of ammonia plant |
| 06/09/1992 | CA1303020C Device for the heat exchange between a recycle gas leaving an nh _converter and water |
| 06/03/1992 | EP0487886A1 Process and device for selective catalytic NOx reduction in exhaust gases containing oxygen |
| 06/02/1992 | CA1302436C Catalyst layer-fixed reactor |
| 05/27/1992 | CN1061403A Process for preparing rare earth ammonium double oxalate and use in preparing rare earth oxidate and obtained rare earth oxidate |
| 05/27/1992 | CN1061402A Process for preparing rare earth ammonium double oxalate and use for preparing rare earth oxidate |
| 05/27/1992 | CN1061389A Process for recovery and treatmen of ammonia during production of ammonium bicarbonate |
| 05/26/1992 | US5116591 Method and apparatus for combining fluids |
| 05/26/1992 | CA1301429C Ammonia plant re-vamp process |
| 05/20/1992 | EP0486351A1 Method for the production of mixed ammonium-rare earth oxalates and their application to the production of rare earth oxides |
| 05/20/1992 | EP0486350A1 Method for the production of mixed ammonium-rare earth oxalates and their application to the production of rare earth oxides and rare earth oxides so produced |
| 05/19/1992 | US5114694 Ammonia recovery from purge gas |
| 05/14/1992 | CA2055294A1 Process for the preparation of rare-earth and ammonium twin oxalates, and their use in preparing rare-earth oxides |
| 05/13/1992 | EP0484534A1 Apparatus for carrying out a catalytic process in a fluidized bed |
| 05/06/1992 | EP0484301A1 Process for the purification of ammonia |
| 05/06/1992 | EP0483975A1 Device and method for holding catalyst in a radial flow reactor |
| 04/29/1992 | CN2102795U Indirect heat exchanging ammonia resultant column structure |
| 04/29/1992 | CN1060636A Two-section radial parallel heat exchanging type ammonia synthetic tower |
| 04/22/1992 | CN2102286U Selective precipition saturation device for producing large particle thioamine spray foam crystal |
| 04/22/1992 | CN2102285U Five-way structure at the tail of ammonia synthetic tower |
| 04/22/1992 | CN1060448A Improved pressurizing technology for raw gas before entering conversion furnace in ammonia-making process flow |
| 04/22/1992 | CN1016318B Inner unit of direct heat-exchange synthetic tower |
| 04/21/1992 | CA1298962C Double-stage ammonia converter with at least one catalyst bed and a central heat exchanger |
| 04/04/1992 | CA2052281A1 Device and method for holding catalyst in a radial flow reactor |
| 04/02/1992 | WO1992005112A1 High conversion ammonia synthesis |
| 04/02/1992 | WO1992005111A1 Apparatus for ammonia synthesis |
| 03/31/1992 | CA1298063C Ammonia synthesis |
| 03/24/1992 | US5098683 Potassium fluoride stabilized ammonium nitrate and method of producing potassium fluoride stabilized ammonium nitrate |
| 03/18/1992 | EP0475131A1 Process and apparatus for increasing the size of ammonium sulfate |
| 03/18/1992 | CN1015883B Process for the hydrolysis of urea in dilute aqueous urea solution |
| 03/17/1992 | US5096468 Cellulose acetate butyrate gas separation membranes |
| 03/13/1992 | WO1992004112A1 Sealing plug for pressure vessel |
| 03/13/1992 | CA2091175A1 Pressure vessel |
| 03/10/1992 | CA1296870C System for reducing energy consumption in multi-unit reactors for heterogeneous synthesis and related reactors |
| 03/10/1992 | CA1296867C Process for selectively removing sulfur dioxide |
| 03/04/1992 | CN1059131A Method for producing synthetic ammonia by deep refrigerating denitrification with continuous gasification of air |
| 03/04/1992 | CN1059107A Process and apparatus for exothermic reactions |
| 02/25/1992 | US5091553 Reacting adduct of isocyanic acid and tertiary amine with unsaturated compound |
| 02/18/1992 | CA1295812C Method for removing and using nitrogen oxides from fumes |
| 02/12/1992 | EP0470936A1 Removal of impurities from a hydride gas |
| 02/12/1992 | EP0470822A1 Hydrogen-permeable composite metal membrane |
| 02/11/1992 | CA2048849A1 Thermally stable composite hydrogen-permeable metal membranes |
| 02/06/1992 | WO1992001630A1 Continuous production of fertilizing salts with derivatives of strontium and gypsum |
| 02/04/1992 | CA1295109C System to improve the mixing of reacted gases and quench gases in the heterogeneous synthesis reactors |
| 02/02/1992 | WO1992002450A1 Nitrogen oxides reduction using a urea hydrolysate |
| 02/02/1992 | WO1992002291A1 Process for the in-line hydrolysis of urea |
| 02/02/1992 | CA2088576A1 Process for the in-line hydrolysis of urea |
| 02/01/1992 | WO1992002301A1 Improvements in or relating to catalysts and getter systems |
| 02/01/1992 | CA2088150A1 Catalysts and getter systems |
| 01/28/1992 | US5084263 Ammonia, phosphoric acid and mineral acid complexes for fungicides, germicides and metal complexing agents |
| 01/08/1992 | EP0465298A1 Process and installation for the production of a gaseous component from a gaseous mixture |
| 01/08/1992 | EP0464307A1 Process and device to improve the performances and the life, with corrosion reduction, in Kettle type carbamate condensers in urea plants |
| 01/07/1992 | US5078980 Process for the removal of isocyanic acid from a mixture of isocyanic acid and ammonia |
| 12/31/1991 | US5077030 Reduced total energy consumption |
| 12/25/1991 | CN1057242A Hidden water tank type carbonizing column |
| 12/25/1991 | CN1015154B System to obtain an optimal gas distribution in catalytic beds for heterogeneous reactions in gaseous phases |
| 12/25/1991 | CN1015153B Modular manifold means for distributing flow of gas in preperably catalytic reactor |
| 12/12/1991 | WO1991018668A1 Apparatus for carrying out a catalytic process in a fluidized bed |
| 12/11/1991 | EP0460001A1 Method for removal of ammonia from a gas mixture. |
| 12/11/1991 | CN1056869A Process and device to improve performances and life, with corrosion reduction, in kettle type carbamate condensers in urea plants |
| 12/10/1991 | US5071630 Phase-stabilization of ammonium nitrate by zinc diammine complexes |
| 12/04/1991 | EP0459424A1 Process for producing the precursor of a precipitated catalyst for the ammonia synthesis |
| 12/04/1991 | EP0459197A1 Process for the purification of ammonium sulphate solutions |
| 12/04/1991 | EP0459184A2 Obtaining ammonia water |
| 12/04/1991 | CN2089838U Energy saving ammonia tower internal piece |
| 12/04/1991 | CN1056665A Stronger ammonia water or anhydrous ammonia produced method by recovered ammonia |
| 12/04/1991 | CN1056664A Copper liquid energy recovering device for nitrogenous fertilizer producing |
| 12/03/1991 | US5069891 Process for independent control of methane and rare gas contents of an ammonia-hydrogen recovery-rare gas plant complex |
| 12/03/1991 | US5069886 Air pollution control |
| 11/27/1991 | EP0458241A2 Process and apparatus for separating ammonium from aqueous liquids |
| 11/27/1991 | CN1056529A Macerating enzymic product and method for processing of flax |
| 11/27/1991 | CN1056475A Biological hydrolysis process for treating waste water of urea |
| 11/13/1991 | EP0253844B1 Reboiler |
| 11/13/1991 | CN1056089A Method for reclaiming conversion process waste heat by heat pump |
| 11/12/1991 | CA1291861C System and device to make catalytic basket walls for heterogeneous synthesis reactors |
| 11/05/1991 | US5063036 Process for producing phase-stabilized ammonium nitrate |
| 10/24/1991 | DE4012351A1 Macerating enzyme prepn. obtd. from Aspergillus niger - contains polygalacturonase, pectin-esterase and proto-pectinase, which are used in the work up of flax |
| 10/22/1991 | CA1290919C Decomposition of ammonium thiocyanate |
| 10/09/1991 | EP0450896A1 Ammonia recovery from purge gas |
| 10/09/1991 | CN1055160A Oxygen-carrying copper adding technology of ammoniac copper solution scrubbing process in chemical fertilizer plant |
| 10/09/1991 | CN1014206B Synthesis reactor with reduced energy consumption |
| 10/03/1991 | CA2045282A1 Ammonia recovery from purge gas |