Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 273 - Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups
Patents for C07C 273 - Preparation of urea or its derivatives, i.e. compounds containing any of the groups the nitrogen atoms not being part of nitro or nitroso groups (3,705)
08/2012
08/01/2012CN102617406A Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent
08/01/2012CN102617405A Cyclic utilization process of hydrogen-containing tail gas in flow process of producing urea by synthesis gas
07/2012
07/25/2012EP2477961A1 Removal of urea and ammonia from exhaust gases
07/25/2012CN102603574A Preparation method of trichlorocarbanilide (TCC)
07/25/2012CN102603573A Method for synthesizing raw fluometuron drug
07/25/2012CN102603553A Compound with collaborative antifungal effect and application thereof in pharmaceuticals
07/25/2012CN101405240B Reagent for organic synthesis and method of organic synthesis reaction with the reagent
07/19/2012WO2012095236A1 A process for making polyurea particles
07/19/2012CA2820844A1 A process for making polyurea particles
07/18/2012EP2475617A1 Method for the separation of ammonia and carbon dioxide from aqueous solutions
07/18/2012CN102596902A DP2 antagonist and uses thereof
07/18/2012CN102596901A Removal of urea and ammonia from exhaust gases
07/18/2012CN102584635A Preparation method for urea for vehicle
07/12/2012US20120178942 Enantio- and stereo-specific syntheses of beta-amino-alpha- hydroxy amides
07/11/2012EP2297093B1 Process for the production of urea from ammonia and carbon dioxide
07/11/2012CN202315906U 一种在线触媒硫化装置 An online catalyst curing unit
07/11/2012CN202315330U 一种尿素溶液提浓装置 One kind of urea solution concentrates devices
07/11/2012CN102557822A Method for preparing urea peroxide containing organic titanium by recrystallization process
07/05/2012WO2012089137A1 Arylurea compound, intermediate and use thereof
07/05/2012WO2012088776A1 Preparation methods of 2-(n-substituted)-amino-benzimidazole derivatives
07/04/2012EP1876170B1 Apparatus for urea synthesis
07/04/2012CN202289497U 尿素溶液蒸发浓缩设备 Urea solution is concentrated by evaporation equipment
07/04/2012CN102532042A Aryl urea compound as well as intermediate and application thereof
07/04/2012CN101696177B Device for processing urea process condensate and method thereof
07/03/2012US8212074 Nano-scale urea particles and methods of making and using the particles
06/2012
06/27/2012CN102516129A Production system of urea
06/26/2012US8206692 Inhibition of sweat malodor
06/26/2012CA2511970C Urea derivatives useful in the treatment of heart failure
06/21/2012WO2012081885A2 Enantiomerically pure binaphthol derivatives and method for preparing the same
06/20/2012CN102503909A Compound containing tertiary amine derivatives, preparation method and application thereof
06/20/2012CN102503860A Synthetic method of 1, 3-two substituted ureas and carbamate
06/20/2012CN102503859A Method for utilization of waste heat from urea desorption tower
06/20/2012CN102503850A Hydroxyl-contained N-acylamino acid and preparation method thereof
06/20/2012CN102500125A Method for condensing intermediate-pressure ammonia gas of urea by aid of liquid ammonia used as raw materials
06/20/2012CN101575305B Preparation method of carbasalate calcium
06/19/2012CA2460516C Process for the preparation of urea
06/14/2012WO2012076611A1 Thixotropic polyurea adducts
06/13/2012EP2463340A1 Thixotropic polyurea adducts
06/13/2012EP2462110A2 Dp2 antagonist and uses thereof
06/13/2012EP1863758B1 Process for urea production and related plant
06/13/2012CN102491920A Method using melamine tail gas to co-produce liquid urea
06/13/2012CN101709043B Method for comprehensively utilizing waste gas and waste liquid in production of biurea
06/12/2012US8198483 Phenethanolamine derivatives for treatment of respiratory diseases
06/06/2012CN202265421U 一种带有循环洗涤功能的真空结晶分离缓冲装置 Vacuum crystallization washing function with a circular buffer means separation
06/06/2012CN101033204B Biuret compounds for rheology control
06/05/2012CA2598815C Pipe reactor and plant for manufacturing of especially urea ammonium sulphate
06/05/2012CA2531381C Process for the preparation of urea granules
05/2012
05/31/2012US20120136172 Modularized System and Method for Urea Production Using Stranded Natural Gas
05/30/2012CN202246488U Liquid ammonia and carbon dioxide heat exchange device
05/30/2012CN202246487U Practical device for utilizing primary steam heat energy for urea
05/30/2012CN202246138U Treatment device for urea waste liquid
05/30/2012CN101628883B Urea mid pressure decomposing process adopting double heating-falling film countercurrent heat exchange
05/30/2012CN101492398B Urea production process of high-efficiency condensation, low-mounting height CO2 air stripping method and high-voltage lamp type full condensation reactor
05/23/2012CN202223919U Desorption device
05/23/2012CN202223918U Desorption column with trays capable of being washed on line
05/23/2012CN102462972A 一种液体分布器 A liquid distributor
05/23/2012CN102461557A 具有杀菌活性的n-硝基-n-2，4，6-三氯苯基-n'-芳基脲衍生物及其制备方法 N- nitro bactericidal activity -n-2,4,6- trichlorophenyl -n'- aryl urea derivatives and preparation method
05/23/2012CN101624355B Medium-pressure recovery process of low steam/carbon ratio-three-section adsorption-evaporative ammonia-cooling carbamide production
05/23/2012CN101607924B Preparation method of meta-alkyl urea series compounds
05/22/2012US8183408 Process for production of N-carbamoyl-tert-leucine
05/22/2012US8183389 Process for the treatment of an aqueous mixture comprising a dipolar aprotic compound
05/17/2012US20120122999 Urethane and urea fluorosurfactants
05/17/2012US20120121707 Tolbutamide Particle And Preparing Method Thereof And Method Of Reducing A Blood Glucose
05/16/2012CN1854128B Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
05/16/2012CN102453016A N-(2,6-dibenzyloxy benzoyl)-N'-substituted urea compound and preparation method and application thereof
05/15/2012US8178721 Processes for the production of L-citrulline
05/09/2012CN102449475A Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas-absorption tank
05/09/2012CN102442928A Purification method for urea
05/09/2012CN102440256A N-nitryl-N-2,4,6-trichlorophenyl-N'-aryl urea derivative with weeding activity and preparation method thereof
05/08/2012US8173841 Tetrahydro-naphthalene derivatives
05/08/2012CA2474313C Stable liquid biuret modified and biuret allophanate modified diphenylmethane diisocyanates, prepolymers thereof, and processes for their preparation
05/02/2012EP2445842A1 Use of monochlorourea to treat industrial waters
05/02/2012CN102432790A Method for preparing polyurethane curing agent
05/02/2012CN102432506A Synthetic method of O-methyl-isourea
04/2012
04/26/2012WO2012015962A3 Method of preparing greases
04/25/2012CN202199351U 一种用于尿素合成塔中塔盘的塔帽 A tower cap urea synthesis column trays
04/25/2012CN101379025B 硝基异脲衍生物的经改良的制备方法 Nitroisourea derivatives of the improved method for the preparation of
04/19/2012WO2012050482A1 Method for producing carbamide
04/19/2012WO2012050041A1 Aryloxyurea compound and pest control agent
04/19/2012CA2813908A1 Aryloxyurea compound and pest control agent
04/18/2012CN102421748A 制备光学纯氨基酸的方法 The method of preparation of optically pure amino acids
04/17/2012US8158824 Process for the production of urea from ammonia and carbon dioxide
04/17/2012US8158823 Method for the modernization of a urea production plant
04/17/2012US8158817 Synthesis of acylureas and composition comprising acylureas
04/11/2012CN102408357A 高附着力聚氨酯丙烯酸酯及其合成方法 High adhesion to urethane acrylate and synthetic method
04/11/2012CN101379026B O-甲基-n-硝基异脲的制备方法 O- methylguanine -n- nitroisourea
04/04/2012EP2437054A1 Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas-absorption tank
04/04/2012EP1615878B1 Compounds, compositions and methods of treatment for heart failure
04/04/2012CN102399172A 一种无酸缩合和有酸缩合联合生产联二脲的工艺 A non-acid condensation and the joint production of an acid condensation process biurea
03/2012
03/29/2012WO2012038954A2 Method for preparing bromourea
03/28/2012CN102391155A Urea phosphate production method
03/28/2012CN102389639A Urea solution evaporation and concentration equipment
03/21/2012CN202170314U Carbon dioxide five-level compression system
03/21/2012CN102382561A Method for preparing HDI (hexamethylene diisocyanate) biuret, removing free HDI and preparing paint by virtue of crystallization water method
03/21/2012CN102382014A Aminopeptidase N inhibitor, preparation method and application
03/21/2012CN102382013A Preparation method of carbasalate calcium
03/21/2012CN101914041B Refining method for medicinal urea
03/21/2012CN101830833B Method for refining medicinal urea
03/14/2012CN1980887B Process for the preparation of urea
03/14/2012CN102372656A Carbonylhexamine compound and preparation method thereof
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