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WO/2001/068249A2 |
This invention relates to a process for separating one or moer organophosphorus ligand degradation products, one or more reaction byproducts and one or more products from a continuously generated reaction product fluid comprising one or ...
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WO/2001/064606A1 |
In a reaction system having at least two liquid-liquid interfaces between an aqueous phase, which comprises an organic phase of a material containing the compound to be separated and an aqueous solution of a clathrate complexing agent, a...
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WO/2001/061332A1 |
A method of separating compounds that includes the steps of: tagging a first organic compound with a first tagging moiety to result in a first tagged compound; tagging at least a second organic compound with a second tagging moiety diffe...
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WO/2001/056932A1 |
The invention relates to a method for separating and recovering rhodium from reaction products of oxosynthesis, especially reaction products containing cobalt. The invention also relates to the reuse of rhodium as a catalyst for hydrofor...
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WO/2001/056956A1 |
The invention relates to a process for the crystallization of substances having a narrow metastable supersaturation zone. In the process the saturation of a solution is gradually increased and the solution is seeded for the crystallizati...
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WO/2001/053235A1 |
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of: A) at least one stable hindered nitroxyl compound having the struct...
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WO/2001/046112A1 |
A method for preventing the polymerization of a vinyl compound by means of an inexpensive polymerization inhibitor which is effective even in the absence of oxygen or in the presence of water even when used in a small amount. The method ...
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WO/2001/044173A1 |
An improved process for removing trace solvent from a material comprises rewetting the product with water during the drying process. Finished products such as suramin are produced efficiently to a high quality on a factory scale.
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WO/2001/041922A1 |
The invention relates to a catalytic converter for the selective hydrogenation of alkines and dienes in C2-C5?+¿ olefin mixtures. Said catalytic system contains (a) a metal from the tenth group of the periodic table of elements, (b) a m...
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WO/2001/040150A1 |
Aromatic compounds can be removed from an aliphatic hydrocarbon fluid by contacting the fluid with a non-neutral ionic liquid that comprises a metal halide-derived anion.
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WO/2001/040149A2 |
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of a mixture comprising: A) at least one stable hindered nitroxyl compo...
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WO/2001/040761A1 |
The invention relates to adsorbing chemical samples onto metallic carrier materials for long term storage of compounds in, for example, a proprietary compound collection.
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WO/2001/040319A2 |
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of a mixture comprising at least two different inhibitors having struct...
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WO/2001/039877A1 |
The invention relates to adsorbing chemical samples onto carriers which are inert and soluble, to form highly stable free flowing solid powders for long term storage of compounds in, for example, a proprietary compound collection.
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WO/2001/036078A1 |
A method of preparing particles of a substance, for example selected from a flavour, fragrance, pigment, dye, biologically active compound or a plastics material, comprises contacting the substance or a formulation (which may include the...
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WO/2001/028651A1 |
A method for removing corrosive contaminants from a polar extraction solvent comprises adding water to the solvent to provide a mixture. Then the mixture is contacted with a basic ion exchanger resin to remove the corrosive contaminants....
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WO/2001/028960A1 |
The present invention provides recombinant lacquer paint with improved functional properties and a process for preparing the same, characterized in that urushi lacquer crude solution taken from a lacquer tree is separated by organic solv...
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WO/2001/025173A1 |
The invention relates to the chemical and/or physical treatment of mixtures that contain monomers having at least one ethylenically unsaturated group in the presence of the reaction products of alkyl succinic acid anhydrides and stable N...
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WO/2001/025172A1 |
A method for sequentially performing a synthesis, separation and screening of chemical entities, especially a combinatorial library, is described. The method utilises a bulk of a stationary phase (e.g. silica gel, aluminium oxide, cellul...
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WO/2001/023331A1 |
The present invention relates to a preparation method of a chemical library using solid phase synthesis method from crude extracts of natural products including herbal drugs, said library and the method for developing new drugs, such as ...
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WO/2001/014291A1 |
The invention relates to cyclodextrin as a protective agent for compounds in compound libraries, particularly for use in screening the compound library for biological activity. A particular advantage is improved recovery of potential act...
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WO/2001/014289A2 |
A method for carrying out a catalysis reaction in carbon dioxide comprising contacting a fluid mixture with a catalyst bound to a polymer, the fluid mixture comprising at least one reactant and carbon dioxide, wherein the reactant intera...
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WO/2001/012291A1 |
The invention relates to a method and device for eliminating oxygen contained in aqueous monomer solutions.
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WO/2001/010809A1 |
Polyunsaturated fatty acids, as free fatty acids, fatty acid esters or fatty acid amides, especially EPA and/or DHA, are recovered from urea adducts, such as obtained as by-products in the processing of fish and other oils, by treatment ...
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WO/2001/007382A2 |
This invention relates to a process for separating one or more cyclic products from a reaction product fluid comprising one or more cyclic reactants, a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus liga...
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WO/2001/007137A1 |
Disclosed is a column chromatography separation method within the framework of liquid chromatography wherein eluents are used as a mobile phase consisting of lower molecules, preferably carbon dioxide, for the isolation and/or purificati...
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WO/2001/005732A1 |
Disclosed is a method of removing a soluble antimony compound from a liquid in which it is dissolved. The liquid is contacted with a hydrated compound, particularly a hydrated compound that forms carbonate ions, bicarbonate ions, or both...
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WO/2001/002326A1 |
The present invention is concerned with a process for the preparation of (R)-1-(3,5-bis(trifluoromethyl)phenyl)ethanol by asymmetric transfer hydrogenation of 3,5-bis(trifluoromethyl)acetophenone using a rhodium of ruthenium catalyst and...
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WO/2000/076943A1 |
The invention relates to a method for preventing undesired polymerisation in a mixture of substances containing ethylenically unsaturated compounds, by maintaining an active concentration of a stabiliser system which contains N-oxyl radi...
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WO/2000/072959A1 |
Disclosed is an insoluble polymer comprising ascorbic acid bonded thereto. This polymer can be used to remove an oxidizing agent from a solution, e.g., a reaction mixture by reacting the oxidizing agent with the polymer comprising ascorb...
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WO/2000/069777A1 |
In a method of performing a chemical reaction using a Lewis acid, after the reaction is complete, the Lewis acid is extracted from the reaction product in the form of an aqueous solution, followed by drying of the aqueous solution of the...
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WO/2000/069793A1 |
The invention relates to mixtures of substances, containing (A) at least one compound which contains a vinyl group, (B) at least one nitroxyl compound of a secondary amine which does not carry any hydrogen atoms on the $g(a)-carbon atoms...
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WO/2000/066253A1 |
The invention relates to a method for separating one or more organic substances which are present in an aqueous mixture and which contain at least one positively charged and/or chargeable nitrogenated group, using extraction via at least...
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WO/2000/064555A2 |
A process for extracting a compound or composition of matter from a raw material containing that compound or composition as a constituent part is described. The process comprises the steps of (1) contacting the raw material with an extra...
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WO/2000/061281A1 |
The invention provides an exemplary chemical library which includes a plurality of constructs which are separable into physically distinct groups. The constructs in each group have at least one common physical characteristic, which is ph...
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WO/2000/059848A1 |
A distillation procedure is provided for the separation of impurities from organic materials such as glycols and glycol ethers whereby a liquid stripping component is interfaced into a distillation column with or below the organic materi...
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WO/2000/056684A1 |
The present invention relates to economically advantageous methods of forming, processing, transporting and storing fluids, especially natural gas in the form of solid crystalline gas hydrates. It has been found that fluid can be removed...
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WO/2000/055279A1 |
The invention relates to an inhibitor mixture which contains as its components at least one phenothiazine derivative and at least one chemical compound containing at least one phosphorus atom with the oxidation number +3. Further compone...
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WO/2000/050367A1 |
The invention relates to a method for the continuous recovery of styrene from a mixture containing same, by distillation of the mixture in a cascade of n distillation columns. According to said method, (i) an inflow containing a stabiliz...
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WO/2000/047031A2 |
The present invention is directed to partitioning agents and methods of using same to effectuate separation of a reactant, intermediate product, and/or final product from a reaction mixture while minimizing the need for traditional separ...
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WO/2000/044468A1 |
A process is provided for the crystallization of pharmaceutical compounds by colliding a liquid jet stream (12) containing a pharmaceutical compound, such as Z-3-[1-(4-chlorophenyl)-1(4-methylsulfonylphenyl)methylene]-
dihydrofuran-2-one...
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WO/2000/040566A1 |
The invention relates to a process for the separation of a component from a gaseous medium by crystallization comprising injecting a gaseous medium containing the component to be separated into a cooling liquid in a crystallizer to form ...
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WO/2000/039055A1 |
Novel polyaromatic hydrocarbon quenching reagents of Formula (I), wherein: P is a polyaromatic hydrocarbon of low chemical reactivity which is soluble; Q is one or more quenching reagents, or an acid or base addition salts thereof, that ...
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WO/2000/037584A1 |
The present invention relates to a method of stabilising monomers. Said method comprises placing said monomers in contact with an effective amount of at least one radical polymerisation inhibitor or retarder. Characteristically said inhi...
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WO/2000/034220A2 |
A method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization, whereby a nitroxyl radical and a chemical compound containing phosphorous in a che...
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WO/2000/032170A1 |
The invention concerns dry compositions avoiding Maillard reaction in dry state and soluble in the presence of water, characterised in that they contain in combination: at least a molecule (A) comprising one or several amino groups prote...
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WO/2000/030614A1 |
The invention provides a process for crystallization of amorphous and/or meta-stable crystalline regions of preformed particles by treating the particles with a supercritical or subcritical fluid containing an anti-solvent and a solvent....
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WO/2000/030613A1 |
The invention provides a process for preparing essentially crystalline particles containing a substance in solvated form, by dissolving the substance in a first solvent, introducing the solution and a supercritical or subcritical fluid i...
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WO/2000/027524A1 |
The invention relates to a catalyst body (4) for degrading halogenated hydrocarbons, especially dioxins and/or furans, having an active mass comprising titanium dioxide, carbon and at least one active component which is selected from the...
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WO/2000/025885A1 |
The invention concerns a method for separating at least a constituent of a mixture in a set of looping chromatographic columns, the loop comprising at least a point for injecting a load, a point for drawing off the raffinate, a point for...
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