| 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) |
|---|
| 06/26/2013 | CN103172540A Phenylglycine histone deacetylase inhibitor as well as preparation method and applications thereof |
| 06/26/2013 | CN103172512A Cajanin compound with similar structures, as well as preparation method and application thereof |
| 06/19/2013 | CN103160296A Pyrolysis gasification coupling integrated poly-generation system and process for coal chemical industry |
| 06/19/2013 | CN103159686A HIV-1 protease urea inhibitor |
| 06/18/2013 | US8466315 Urea granulation process with an acidic scrubbing system and the subsequent integration of ammonium salt into urea granules |
| 06/13/2013 | WO2013083378A1 A process for synthesis of urea and a related arrangement for a reaction section of a urea plant |
| 06/13/2013 | CA2855901A1 A process for synthesis of urea and a related arrangement for a reaction section of a urea plant |
| 06/12/2013 | EP2602245A1 A process for synthesis of urea and a related arrangement for a reaction section of a urea plant |
| 06/12/2013 | CN103145635A Tail gas recycling process and system for melamine production device |
| 06/12/2013 | CN103145588A Synthetic method of ethoxy urea |
| 06/12/2013 | CN103145587A Method for synthesizing powdered nitric acid by using allantoin synthetic waste liquid |
| 06/12/2013 | CN101817764B Preparation method of chain-like urea derivatives, cyclic urea derivatives and oxazolidinone |
| 06/11/2013 | CA2698026C Method and system for removing impurities from a urea solution |
| 05/29/2013 | CN102070492B Method for synthesizing (S)-2-hydroxy-2'-(3-phenylureaphenyl)-1,1'-binaphthyl-3-formaldehyde |
| 05/22/2013 | CN103113265A Method for synthesizing symmetric urea compounds from nitrocompounds |
| 05/16/2013 | US20130123536 Tube-bundle equipment for processing corrosive fluids |
| 05/15/2013 | CN102101834B Energy-saving modification method of CO2-stripping urea device |
| 05/09/2013 | US20130116472 Process for preparing urea |
| 05/08/2013 | DE112011102559T5 Verfahren zur Herstellung von Schmierfetten Process for the preparation of lubricating greases |
| 05/08/2013 | CN202921280U Tower tray applying to urea synthesizing tower by using air lift process |
| 05/08/2013 | CN103086925A Benzoyl urea derivatives having anticancer activity and their preparation method and use |
| 05/01/2013 | EP2585434A1 Urea plant |
| 04/25/2013 | WO2013056559A1 Modified diphenylmethane diisocyanate biuret curing agent and preparation method thereof |
| 04/24/2013 | EP2582663A1 Method for revamping a self-stripping urea plant and process for synthesis of urea |
| 04/24/2013 | CN202898276U Device for co-production of urea by utilizing triamine tail gas |
| 04/24/2013 | CN103059261A Modified diphenylmethane diisocyanate biuret curing agent and preparation method thereof |
| 04/24/2013 | CN102001969B Method for shifting ammonia in diphenyl urea reaction system by nitrogen |
| 04/24/2013 | CN101578357B Process and apparatus for preparing a urea grease |
| 04/24/2013 | CN101573329B Integrated process for urea and melamine production |
| 04/23/2013 | CA2533660C Method and system for treating waste matter from animals containing urea |
| 04/18/2013 | WO2013055219A1 Urea finishing method |
| 04/18/2013 | WO2013004220A3 Method and installation for generating electrical energy and for producing valuable products |
| 04/18/2013 | CA2839657A1 Urea finishing method |
| 04/17/2013 | CN103052702A Method of preparing greases |
| 04/17/2013 | CN103044287A Synthetic method for diaryl urea compound |
| 04/17/2013 | CN102180813B Method for preparing diflubenzuron serving as pesticide |
| 04/17/2013 | CN102134207B Urea compound and preparation method and application thereof |
| 04/17/2013 | CN101786969B Method of joint production of urea hydrogen peroxide and sodium percarbonate |
| 04/17/2013 | CN101774950B Cogeneration technology of urea by using melamine tail gas |
| 04/17/2013 | CN101538483B Poly-generation technique for using coal gas and coke oven gas as raw materials |
| 04/11/2013 | US20130090497 Epoxidation of glycerol and derivatives therefrom |
| 04/04/2013 | DE112011101335T5 Modifiziertes 1,6-Hexamethylendiisocyanatbiuret-Härtungsmittel sowie ein Herstellungsverfahren für dieses 1,6-hexamethylene diisocyanate biuret modified curing agent and a manufacturing method for this |
| 04/03/2013 | CN202849289U First-segment decomposition heater for producing urea |
| 04/03/2013 | CN103012211A Method for preparing bi-hydroxyalkyl urea compound by using ionic liquid catalysis |
| 03/28/2013 | US20130079542 Processes for producing aryl carbamates, isocynates and polyureas using diaryl carbonate |
| 03/27/2013 | CN102993054A Benzamide derivative and preparation method and application thereof |
| 03/27/2013 | CN102993053A Electronegative plasma assisted carbon dioxide emission reduction processing method and device thereof |
| 03/20/2013 | CN102985404A Urea plant |
| 03/20/2013 | CN102976977A Method for purifying carbamide |
| 03/20/2013 | CN101665453B Method for producing urea phosphate through vacuum crystallization |
| 03/14/2013 | WO2013034319A1 A carbon dioxide stripping urea plant with a natural-circulation synthesis loop and a method for retrofitting such plant. |
| 03/14/2013 | CA2843789A1 A carbon dioxide stripping urea plant with a natural-circulation synthesis loop and a method for retrofitting such plant |
| 03/13/2013 | EP2567953A1 A carbon dioxide stripping urea plant with a natural-circulation synthesis loop and a method for retrofitting such plant |
| 03/13/2013 | CN102971288A Novel process for producing bisaminophenylalkylurea |
| 03/13/2013 | CN102964274A Reuse of synthesis and centrifugation mother liquid of epoxy resin latent accelerant TDI80 |
| 03/13/2013 | CN102964193A Method for synthesizing nitrosoureas antineoplastic drugs through stannic chloride-sodium nitrite system |
| 03/12/2013 | US8394990 Phenylurea inhibitors of the enzyme SOAT-1 and pharmaceutical/cosmetic compositions comprised thereof |
| 03/07/2013 | US20130060043 Preparation method of fluoro-substituted deuterated diphenylurea |
| 03/06/2013 | EP2563506A1 Reactor for effecting gas-liquid biphasic reactions |
| 03/06/2013 | CN102952077A Preparation method and performance calculation for 2-(dinitromethyl)-3-nitro-1,3-diazacyclo-pent-1-ene ionic salt containing energy |
| 03/06/2013 | CN102952042A Synthesis process of novel synthetic rubber accelerator N-cyclohexylurea |
| 03/05/2013 | US8389764 Urea and sulfamide derivatives as inhibitors of TAFIa |
| 02/27/2013 | EP2562158A1 Processes for the preparation of n-heteroaryl-N-aryl-amines by reacting an N-aryl carbamic acid ester with a halo-heteroaryl and analogous processes |
| 02/27/2013 | CN102942507A Novel method for preparing linuron |
| 02/27/2013 | CN102942506A Preparation method for feed additive of N-carbamyl glutamate chelated zinc |
| 02/27/2013 | CN102153515B N,N'-bis-substituted urea Raf kinase inhibitors and preparation method and application thereof |
| 02/27/2013 | CN101475513B Raf and HDAC small molecular double inhibitor, and preparation and use thereof |
| 02/26/2013 | US8383856 Reacting ammonia and carbon dioxide at a predetermined high pressure; stripping process; creating pumping of the flow between synthesis reactor and stripper, varying the pumping parameters (pressure and/or flow rate) according to the desired production capacity of the plant |
| 02/26/2013 | CA2523401C Crystallization-stable mdi allophanates by a two-stage process |
| 02/21/2013 | WO2013025109A1 Urea production process characterized by short urea melt transportation time between last concentrator and prilling tower |
| 02/21/2013 | CA2845302A1 Urea production process characterized by short urea melt transportation time between last concentrator and prilling tower |
| 02/19/2013 | US8377399 Process for increasing the capacity of an existing urea plant |
| 02/19/2013 | CA2545073C Process for the preparation of urea granules |
| 02/13/2013 | CN102924336A Method for preparing N-methyl-N',N'-diphenylcarbamide |
| 02/13/2013 | CN102924335A Preparation method of carbasalate calcium |
| 02/13/2013 | CN102924334A Method for synthesizing symmetrical urea compound |
| 02/13/2013 | CN102924333A Preparation and application of ionic liquid used for absorbing low-boiling halohydrocarbon gas |
| 02/05/2013 | US8367867 Process and plant for urea production |
| 01/30/2013 | CN202700483U Urea synthesizing tower |
| 01/30/2013 | CN102906067A Method for revamping self-stripping urea plant and process for synthesis of urea |
| 01/30/2013 | CN102898334A Normal-pressure starting method of carbon dioxide gas stripping urea system |
| 01/29/2013 | US8362300 Addition compounds suitable as dispersants and dispersion stabilizers |
| 01/23/2013 | CN101274906B Method for improving a urea production plant |
| 01/22/2013 | US8357819 Method for the synthesis of (Z)-3-[2-butoxy-3′-(3-heptyl-1-methyl-ureido)-biphenyl-4-yl]-2-methoxy-acrylic acid |
| 01/17/2013 | US20130018194 Octahydrobinaphthol derivative for l/d optical conversion and optical resolution |
| 01/16/2013 | CN202671464U Urine concentration device used for urea production system |
| 01/09/2013 | CN202658105U Three-stage jet device for aqueous solution total-circulation small-sized urea production |
| 01/09/2013 | CN102869439A Reactor for effecting gas-liquid biphasic reactions |
| 01/09/2013 | CN101838224B Method for reducing grain size of AC foaming agent |
| 01/02/2013 | EP2539315A1 Process for preparing urea |
| 01/02/2013 | CN102850240A Preparation method of asymmetric carbamide derivatives |
| 01/02/2013 | CN101823985B Medium-pressure urea decomposing, separating and purifying system for urea system |
| 12/27/2012 | WO2012177137A1 Process for producing ammonia and urea |
| 12/27/2012 | WO2012177136A1 Process for producing a syngas intermediate suitable for the production of hydrogen |
| 12/27/2012 | US20120330060 Removal of ammonia in urea finishing |
| 12/27/2012 | CA2837773A1 Process for producing a syngas intermediate suitable for the production of hydrogen |
| 12/27/2012 | CA2835472A1 Process for producing ammonia and urea |
| 12/26/2012 | CN102844086A Falling-film stripper for carbamate decomposition |
| 12/26/2012 | CN102020592B Urea carbamate methyl substituted arly ester with bactericidal activity |
| 12/20/2012 | US20120323040 Process for synthesis of amino-methyl tetralin derivatives |