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WO/2010/147965A2 |
A manufacturing process for the preparation of radiolabeled compounds of formula (I) includes reacting compounds of formula (II) with a source of readionuclide of a halogen in the presence of an oxidant under acidic condition, wherein: *...
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WO/2010/139028A1 |
The present invention relates to a method and system for producing electric power and fertiliser. The method comprises the steps of: (a) combusting biomass to produce energy for the generation of electric power and an exhaust gas; (b) pr...
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WO/2010/137454A1 |
Disclosed are a method for analyzing an aqueous ammonium carbamate solution whereby the composition of a liquid discharged from the outlet of an unreacted gas-absorption tank can be specified in real time, and a method for operating the ...
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WO/2010/127558A1 |
Substituted benzoyl urea compounds, preparation methods and pharmaceutical uses thereof are disclosed. The compounds are shown by general structure formula (I), wherein R1, R2 and R3 are defined as those in the description. The compounds...
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WO/2010/108632A1 |
The invention relates to the use and to the production of polyisocyanate prepolymers having allophanate structure units in formulations for coatings, adhesives and sealants.
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WO2010110555A2 |
The present invention relates to a method for obtaining optically pure amino acids, including optical resolution and optical conversion. The method of the present invention significantly shortens the time taken for optical transformation...
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WO/2010/069018A1 |
An integrated process is described for producing olefins and intermediate chemicals for the production of ammonia and urea, using an FCC reactor, a regenerator, a steam reforming unit, an air separation unit, an ammonia production unit a...
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WO/2010/069691A1 |
A process and a related plant layout for producing urea are disclosed, wherein the high-pressure loop (1) comprises a synthesis reactor (2), a thermal stripper (3), a condenser (4), and an adiabatic CO2 stripper (10) disposed upstream sa...
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WO/2010/063358A1 |
The invention relates to a method for producing a solution comprising urea urethanes and acting as a thixotropic agent, wherein at least two structurally different monohydroxy compounds are converted by an excess of toluylene diisocyanat...
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WO/2010/062158A2 |
The present invention relates to the synthesis of lipophilic or immobilized monobasic phosphate (H2PO4) ionophores (7, 8a, 8b and 11) to be used as ion recognition molecules for monobasic phosphate (H2PO4") in the cocktail preparation of...
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WO/2010/035053A1 |
The present invention refers to a process for the recovery of energy in urea plants, this recovery consisting in the generation of electric power inside the urea plants. The process of the invention essentially consists in the introducti...
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WO/2010/012632A1 |
A process and a plant for the preparation of an acqueous solution of urea suitable for use in a SCR process for nitrogen oxides removal, wherein the urea solution from the recovery section of a urea plant is subject to at least one step ...
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WO/2009/141344A1 |
Process for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section comprising at least one reactor section, a stripper and a condenser wherein all the high-pressure equipment i...
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WO/2009/141346A1 |
Process for the production of urea from ammonia and carbon dioxide in a urea plant containing a high-pressure synthesis section comprising two reactor sections, a stripper and a condenser, and a recovery section, wherein in the first rea...
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WO/2009/121603A1 |
The invention relates to a method for producing at least one compound having at least one at least monosubstituted amino group. According to the invention, a starting substance supporting at least one amino group is reacted with an alcoh...
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WO/2009/121607A1 |
The invention relates to a method for producing a compound having at least one at least monosubstituted amino group. According to the invention, a starting substance supporting at least one amino group is reacted with a reagent supportin...
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WO/2009/121843A1 |
Process for increasing the capacity of an existing urea plant comprising a high-pressure urea synthesis section and one or more recovery sections, wherein next to the existing urea plant a urea production unit, comprising a high-pressure...
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WO/2009/108258A1 |
Apparatus and methods for producing urea are provided. In one or more embodiments, an apparatus for producing urea can include a first zone, which can include a first flow channel in fluid communication with a first tube disposed about a...
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WO/2009/095164A1 |
The invention relates to a method for producing urethanes by the oxidative carbonylation of amino compounds in the presence of carbon monoxide, oxygen and organic compounds carrying hydroxyl groups, characterized in that the carbonylatio...
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WO/2009/086256A1 |
The present invention relates to an adhesion-promoting agent that contains at least 1.5 isocyanate groups per molecule and at least one urea linked silane group, coating compositions containing the adhesion promoting agent and methods fo...
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WO/2009/071533A1 |
The present invention relates to novel polyisocyanates containing allophanate groups and based on isophorone diisocyanate and use thereof.
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WO/2009/065534A1 |
The present invention relates to a process for the recovery of ammonia contained in a gaseous purging stream produced in a synthesis process of urea, comprising the following phases: a) subjecting the gaseous purging stream to a washing ...
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WO/2009/063804A1 |
Disclosed is a process for producing N-carbamoyl-tert-leucine, which is characterized by mixing tert-leucine with an isocyanic acid compound in an amount of 0.9 to 1.1 times the amount of tert-leucine by mole, while keeping the pH value ...
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WO/2009/050041A1 |
The present invention relates to carbamoylglycine derivatives, a process for the preparation of carbamoylglycine derivatives and the use of carbamoylglycine derivatives in the preparation of enantiomerically enriched α-amino acids. Furt...
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WO/2009/043365A1 |
A process for producing urea is disclosed, wherein liquid ammonia and carbon dioxide are reacted in a high-pressure synthesis section (100), and at least part of the carbon dioxide is fed to said synthesis section (100) in liquid phase. ...
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WO/2009/032188A1 |
A method of removing impurities from a urea solution comprising contacting the aqueous solution with an ion exchange resin and adsorbing the impurities from the urea solution, and the system therefore.
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WO/2009/025829A1 |
Processes for producing a suitable purity grade of L-Citrulline are disclosed. The processes can include contacting crude L-Citrulline in an aqueous solution with an adsorptive medium at a temperature above approximately 5O0C and below t...
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WO/2008/141832A1 |
An enhanced process is described for the synthesis of urea from ammonia and carbon dioxide, at a high pressure and temperature, with the formation of ammonium carbamate as intermediate, which includes a high pressure synthesis section, c...
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WO/2008/139121A2 |
The invention relates to a method for the synthesis of (Z)-3-[2-butoxy-3'-(3-heptyl-1 - methyl-ureido)-biphenyl-4-yl]-2-methoxy-acrylic acid having formula (I) and to the method for the synthesis of the reaction intermediates having gene...
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WO/2008/138499A1 |
The present invention generally relates to specific thiourea derivatives and their use for controlling animal pests, especially arthropods, in particular insects. The present invention relates further to compositions of these pesticidal ...
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WO/2008/110492A1 |
The invention relates to a method for producing colorless polyisocyanates, which have biuret groups and are stable in storage, from di- or polyisocyanates with diamines in the absence of biuret-forming agents and the use thereof.
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WO/2008/107661A1 |
There is provided compounds of formula (I), wherein Rx, Ry, X1, X2, L1, L2, Y1 and Y2 have meanings given in the description, and pharmaceutically-acceptable salts thereof, which compounds are useful in the treatment of diseases in which...
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WO/2008/099431A1 |
The object of the present invention consists in a process for practically zeroing the ammonia and carbon dioxide losses from the low pressure section of urea plants into the environment. The process simply consists in the recovery and re...
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WO/2008/092647A1 |
The present invention regards a process for the production of an aqueous solution comprising urea for use in the removal of nitrogen oxides from combustion gas or fumes, the process being characterised in that it comprises the steps of :...
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WO/2008/073773A1 |
The invention provides for a process for preparing a urea grease including: (a) introducing a first feed component to a first feeding zone; (b) introducing a second feed component to a second feeding zone; (c) first reacting-mixing in a ...
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WO/2008/068210A1 |
Process for the preparation of urea from ammonia and carbon dioxide in a urea production process comprising, in a high-pressure synthesis section, a. a reactor, wherein ammonia and carbon dioxide react to form a urea-comprising synthesis...
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WO/2008/052640A1 |
In an integrated process for urea and melamine production, urea is produced in a urea plant (10) comprising a high pressure urea synthesis section (11) from which an aqueous solution comprising urea, ammonium carbonate and ammonia is obt...
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WO/2008/052639A1 |
A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section...
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WO/2008/049972A1 |
The present invention relates to carbamoylation of amines, mercaptanes, thiophenols and phenols employing organic azides. More specifically, the invention relates to a method for generating urea derivatives, thiocarbamate derivatives and...
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WO/2008/031755A1 |
The invention relates to processes for preparing isocyanates by splitting urethane, said process comprising the following process steps: (i) provision of synthesis gas from natural gas, coal, heavy oil or biomass gasification and product...
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WO/2008/006812A1 |
The present invention relates to a method for obtaining symmetrical N,N'-disubstituted urea, comprising the step of reacting a reaction mixture comprising a primary amine and phosgene corresponding to the substituents of the urea in an a...
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WO/2007/122847A1 |
A reagent for organic syntheses with which a chemical reaction can be conducted in a liquid phase and unnecessary compound(s) can be easily separated at low cost from the liquid phase after completion of the reaction. The reagent for org...
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WO/2007/105793A1 |
Disclosed is a method for commercially advantageously producing an N-nitroisourea, which is useful as a synthetic intermediate for pharmaceutical products and agricultural chemicals, or a salt of such an N-nitroisourea. Specifically disc...
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WO/2007/093211A1 |
The invention relates to a process for the treatment of an aqueous mixture comprising a dipolar aprotic compound, comprising: a) an adsorption step, in which the aqueous mixture is brought into contact with a porous adsorbent, whereby th...
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WO/2007/091390A1 |
Disclosed is an improved method for producing a nitroisourea derivative which is necessary for producing a nitroguanidine derivative having an insecticidal activity. Specifically disclosed is a method for producing a nitroisourea derivat...
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WO/2007/091392A1 |
Disclosed is an industrially advantageous process for production of O-methyl-N-nitroisourea. O-methyl-N-nitroisourea of the formula (1) or a salt thereof can be produced in a high yield by performing the nitration of O-methylisourea of t...
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WO/2007/049656A1 |
Disclosed are a novel fluoroadamantane derivative and a method for producing the same. Specifically disclosed are a method for producing a compound (2) shown below wherein a compound (1) shown below is reacted with an azide and then subj...
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WO/2007/036572A1 |
The invention relates to compounds of formula (I) which contain aldimine, and to the use thereof. Said compounds which contain aldimines are characterised in that they are odour-less and during hydrolysis the odour-free aldehydes are sep...
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WO/2007/029155A2 |
The present invention relates to an improved process for preparing pure celiprolol base in monohydrate form by crystallizing crude celiprolol base in one or more carboxylic acid ester solvents and its conversion to pharmaceutically accep...
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WO/2006/131381A1 |
The invention relates to a method for producing N-aryl carbamates (urethanes) and N-aryl isocyanates. According to said method, aromatic nitro compounds are subjected to a reductive carbonylation in the presence of carbon dioxide and org...
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