| 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) |
|---|
| 12/11/2013 | CN103443070A Zero emission urea process and plant |
| 12/11/2013 | CN103435517A Yield-increasing and energy-saving technology of carbon dioxide stripping urea and equipment of carbon dioxide stripping urea |
| 12/11/2013 | CN102617405B Cyclic utilization process of hydrogen-containing tail gas in flow process of producing urea by synthesis gas |
| 12/11/2013 | CN102351739B Urea granulation tail gas ammonia emission reduction technology and ammonia emission reduction device |
| 12/10/2013 | US8604239 Diethylene tricarbamide and diethylene tricarbamide-formaldehyde condensation resins |
| 12/04/2013 | CN203315766U Evaporation prilling device for preparing urea |
| 12/04/2013 | CN103429568A Method for treating offgases from melamine plant |
| 11/28/2013 | US20130316078 Fluid Bed Granulation of Urea and Related Apparatus |
| 11/27/2013 | CN203307257U Energy conservation system for preparing urea from synthetic ammonia |
| 11/27/2013 | CN203303927U Tower tray for urea synthetic tower |
| 11/27/2013 | CN203303925U Tray structure used for urea production |
| 11/27/2013 | CN103408467A Low-energy-consumption urea production technology and system adopting CO2 stripping method |
| 11/27/2013 | CN103408466A Equipment corrosion control method in producing urea by using CO2 stripping method |
| 11/27/2013 | CN103408176A Method for treatment of (methyl) acrylic acid production wastewater and recovery of sodium acetate |
| 11/27/2013 | CN103408175A Treatment and reclamation method of (methyl) acrylic acid production wastewater |
| 11/20/2013 | EP2663584A1 A process for making polyurea particles |
| 11/20/2013 | CN203295398U Circulating device for preparing urea |
| 11/20/2013 | CN103402978A Process for preparing polyisocyanates containing biuret groups |
| 11/20/2013 | CN103396344A One-pot synthetic method for N-t-butyl-aminocarbonyl-3-methyl-L-valine |
| 11/20/2013 | CN103396343A Corrosion-resistant method for production process system for carbon dioxide gas stripping of urea |
| 11/14/2013 | WO2013167245A1 Urea granulation process with scrubbing system |
| 11/13/2013 | EP2662349A1 Urea granulation process with scrubbing system |
| 11/13/2013 | CN102557822B Method for preparing urea peroxide containing organic titanium by recrystallization process |
| 11/07/2013 | WO2013165247A1 Method for manufacturing a tube sheet and heat exchanger assembly for a pool reactor or pool condenser |
| 11/07/2013 | WO2013165246A1 Method and apparatus for the production of urea from ammonia and carbon dioxide |
| 11/07/2013 | WO2013165245A1 Urea production plant |
| 11/07/2013 | CA2871848A1 Method of manufacturing a tube sheet and heat exchanger assembly for a pool reactor or pool condenser ; corresponding tube sheet and heat exchanger assembly |
| 11/06/2013 | CN102382561B Method for preparing HDI (hexamethylene diisocyanate) biuret, removing free HDI and preparing paint by virtue of crystallization water method |
| 11/06/2013 | CN101679224B Enhanced process for the synthesis of urea |
| 11/06/2013 | CN101475506B Antineoplastic use of higher fatty acid derivative novel compound |
| 10/30/2013 | CN102617827B Curing agent modified 1,6-hexamethylene diisocyanate biuret (HDI biuret) and preparation method thereof |
| 10/24/2013 | US20130281553 Method of producing synthetic fuels and organic chemicals from atmospheric carbon dioxide |
| 10/23/2013 | EP2651879A2 Enantiomerically pure binaphthol derivatives and method for preparing the same |
| 10/23/2013 | CN103360284A Preparation method of lufenuron compound |
| 10/23/2013 | CN103360283A Method for extracting citrulline from selenium-contained watermelon plant tissues |
| 10/23/2013 | CN102461557B N-nitro-N-2, 4, 6-trichlorophenyl-N'-aryl urea derivatives with bactericidal activity and preparation method thereof |
| 10/16/2013 | CN102442928B Purification method for urea |
| 10/09/2013 | CN102746194B Industrial production method for continuously preparing Dailon |
| 10/03/2013 | US20130261178 Phenoxypropanol derivatives and their use in treating cardiac and cardiovascular diseases |
| 10/02/2013 | CN102584635B Preparation method for urea for vehicle |
| 09/26/2013 | WO2013141163A1 Compound, process for producing said compound, polymer, curable composition, and cured object |
| 09/26/2013 | WO2013140402A1 Method for preparing biocidal aqueous compositions |
| 09/26/2013 | WO2013139802A1 Polyamide compositions with improved optical properties |
| 09/25/2013 | CN203212510U Tail gas recovery system of melamine production device |
| 09/25/2013 | CN203208810U Gas-liquid buffer separator of gas outlet of urea two-stage decomposing tower |
| 09/25/2013 | CN103328522A A process for making polyurea particles |
| 09/25/2013 | CN103328438A Aryloxyurea compound and pest control agent |
| 09/25/2013 | CN103319375A Energy saving process and system for ammonia synthesis and urea preparation |
| 09/25/2013 | CN102336688B Urea process water circulation system and method |
| 09/24/2013 | US8541619 Method for purifying flue gases from combustion plants and then producing urea |
| 09/18/2013 | CN103304481A Preparation method of low-temperature oxygen bleaching activator as well as scouring and bleaching formula and method thereof |
| 09/18/2013 | CN103304448A Novel double-energy-saving urea yield increase technique through aqueous solution complete cycle |
| 09/18/2013 | CN102382013B Preparation method of carbasalate calcium |
| 09/11/2013 | CN103288793A Phenethanolamine derivatives for treatment of respiratory diseases |
| 09/11/2013 | CN103288684A Biphenyl carbamide compound with antineoplastic activity and preparation method thereof |
| 09/11/2013 | CN103288683A Method for preparing nicarbazin through one-pot process |
| 09/11/2013 | CN101817769B Carbamido peptide aminopeptidase N inhibitor and application thereof |
| 09/10/2013 | CA2575537C Process for urea production from ammonia and carbon dioxide |
| 09/06/2013 | WO2013130968A1 Ros-activated compounds as selective anti-cancer therapeutics |
| 09/04/2013 | CN102617406B Stabilizing agent in urea peroxide storage process and preparation method of stabilizing agent |
| 08/21/2013 | CN102434544B High-pressure energy recovering system for urea solution |
| 08/21/2013 | CN102321231B Method for preparing hexamethylene diisocyanate biuret curing agent |
| 08/21/2013 | CN101602695B Benzoyl urea compound with oxime ether structure as well as preparation method and application thereof |
| 08/14/2013 | CN103242201A Preparation method of urea formaldehyde intermediate dimethylol urea |
| 08/14/2013 | CN103242134A Pyrolysis gasification and purification method of household garbage |
| 08/14/2013 | CN101942357B Method for isolating jatropha curcas oil polyunsaturated fatty acids |
| 08/13/2013 | US8507560 Pharmaceutical compositions comprising 3,4-dihydroisoquinolin-2(1H)-yl-3-phenylurea derivatives having formyl peptide receptor like-1 (FPRL-1) agonist or antagonist activity |
| 08/07/2013 | CN103232371A Method for preparing N-methyl-N', N'-diphenylcarbamide |
| 08/07/2013 | CN102642876B Method for co-production of urea and methanol by treating high-concentration ammonia nitrogen and 1, 5-cyclooctadiene (COD) sewage |
| 08/07/2013 | CN102516129B Production system of urea |
| 08/07/2013 | CN101558037B Process for urea production and related plant |
| 08/06/2013 | US8501037 Optically anisotropic compound and resin composition comprising the same |
| 08/06/2013 | CA2606357C Process for urea production and related plant |
| 07/31/2013 | EP2620426A1 Method for producing urea from waste, preferably domestic waste, of any composition |
| 07/31/2013 | CN101959851B Apparatus and methods for urea production |
| 07/30/2013 | CA2606784C Method for concentrating an aqueous ammonium carbamate stream |
| 07/30/2013 | CA2569711C Process for the preparation of urea |
| 07/25/2013 | WO2013108191A1 A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| 07/25/2013 | CA2861431A1 A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| 07/24/2013 | EP2617708A1 A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| 07/24/2013 | CN103214400A Preparation method of hexaflumuron |
| 07/24/2013 | CN101627009B Process and plant for the production of an aqueous solution comprising urea |
| 07/18/2013 | WO2013104638A1 Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
| 07/17/2013 | EP2615082A2 Production of carbamates by means of base-catalyzed Lossen rearrangement |
| 07/17/2013 | CN102432790B Method for preparing polyurethane curing agent |
| 07/11/2013 | WO2013102589A1 Co-production of methanol and urea |
| 07/11/2013 | US20130178532 Method for preparing bromourea |
| 07/11/2013 | DE102012100127A1 Herstellung von Carbamaten über eine basenkatalysierte Lossen- Umlagerung Preparation of carbamates via a base-catalyzed rearrangement Lossen |
| 07/10/2013 | CN103193711A Three-ingredient eutectic ionic liquid and preparation method thereof |
| 07/10/2013 | CN103193710A Three-ingredient eutectic ionic liquid and preparation method thereof |
| 07/10/2013 | CN103193680A Preparation method of tetrabutyl urea |
| 07/09/2013 | US8481786 Systems and methods for integrated ammonia-urea process |
| 07/09/2013 | CA2597761C Process for the preparation of a urea-comprising aqueous stream |
| 07/09/2013 | CA2482710C Method for treating waste stream |
| 07/09/2013 | CA2428852C Process for the preparation of urea |
| 07/03/2013 | CN101967114B Continuous production method and continuous production device for synthesizing biruea |
| 06/27/2013 | WO2013095130A1 Process for producing ammonia and urea |
| 06/27/2013 | WO2013091285A1 Urea compound, preparation method and use thereof |
| 06/26/2013 | CN103172543A Urea compound, preparation method and application thereof |
| 06/26/2013 | CN103172542A Method for separating and purifying L-citrulline |