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WO/2000/053282A1 |
The invention relates to a process for the crystallisation of a chemical substance, and more particularly a substance to be used as a pharmaceutically active agent.
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WO/2000/048729A2 |
A reactor including a rotatable disc (3) having a trough (13) in an upper surface (5) thereof. Reactant (15) is supplied to the trough (13) by way of a feed (4), the disc (3) is rotated at high speed, and the reactant (15) spills out of ...
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WO/2000/048728A1 |
A reactor including a rotatable disc (3) having a surface (5) onto which reactant (15) is supplied by way of a feed (4). The disc (3) is rotated at high speed, and the reactant (15) spills over the surface (5) so as to form a film (17). ...
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WO/2000/048732A1 |
A reactor including a rotatable disc (3) having first (5, 19) and second (20, 30) surfaces. Reactant (15) is supplied to the first surface (5, 19) by way of a feed (4), the disc (3) is rotated at high speed, and the reactant (15) forms a...
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WO/2000/048730A2 |
A reactor including a rotatable disc (3) having a surface (5) onto which reactant (15) is supplied by way of a feed (4). The disc (3) is rotated at high speed, and the reactant (15) spills over the surface (5) so as to form a film (17). ...
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WO/2000/048731A1 |
A process for the conversion of a substantially fluid phase substrate by heterogeneous contact of the substrate or a fragment or derivative thereof with a substantially solid phase agent wherein the solid phase agent is comprised as a su...
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WO/2000/045928A1 |
The invention relates to a method and a device for purifying mixtures of substances by means of optionally, fractional crystallisation. During the crystallisation process, impurities can precipitate in addition to the desired product, si...
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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/2000/043361A1 |
A method of purifying 1$g(a)-hydroxyvitamin D¿2? to obtain 1$g(a)-hydroxyvitamin D¿2? in crystalline form. The method includes the steps of boiling a solvent selected from the group consisting of ethyl formate, ethyl acetate and a 2-pr...
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WO1999013034A9 |
A method of dry-fractionating fat for subjecting raw fat to stationary crystallization and solid-liquid separation, characterized by cooling preliminarily an objective fat, dividing the same into small parts inside a large vessel, and ch...
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WO/2000/041985A1 |
A process for the formation of a purified anhydrosugar alcohol is disclosed, whereby the resultant purified anhydrosugar alcohol has a purity of at least 99.8 % and is substantially colorless. The anhydrosugar alcohol is purified by dist...
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WO/2000/038812A1 |
The invention relates to a method for producing crystals from thermally sensitive solids. According to this method, the solid is dissolved in at least one solvent and the solution is concentrated by drawing off the solvent to beyond the ...
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WO/2000/039121A1 |
The present invention relates to a new process for the preparation of an acetate salt of a compound of formula (1) in which R?1¿ is a substituted phenyl group, preferably 3,4-methylenedioxyphenyl; the process comprising treating a solut...
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WO/2000/038811A1 |
There is provided according to the present invention a process for preparing crystalline particles, especially particles of a pharmaceutical or carrier substance suitable for inhalation therapy, in addition to an apparatus for the prepar...
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WO/2000/037420A1 |
A method for efficient removal of lead co-catalyst species from organic process streams arising from diaryl carbonate synthesis, by contacting the organic reaction mixtures with an aqueous acid, salt, or acid/salt solution, thereby extra...
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WO/2000/032589A1 |
The present invention provides eletriptan hydrobromide monohydrate of formula (I) together with processes for preparing, uses of, and compositions containing, said monohydrate.
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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/2000/029102A1 |
A device and method for simultaneously concentrating a plurality of samples in small volumes based on the principle of crystallization. The device comprises a device for concentrating a plurality of samples comprising: a first temperatur...
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WO/2000/027804A1 |
Disclosed is the crystallization of Iopamidol using a mixture of an alcohol and water as a crystallization solvent. The ratios of water:Iopamidol from 1:10 to 1:1 (v/w) and alcohol:Iopamidol from 1:1 to 1:10 (v/w) allow Iopamidol to be c...
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WO/2000/016872A1 |
A method and system (10) for selectively removing one component of a material thereby concentrating other components of the material are disclosed. The material is cooled to below the melting temperature of the material to form a superco...
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WO/2000/017150A1 |
Lovastatin, pravastatin, simvastatin, mevastatin, atorvastatin, and derivatives and analogs thereof are known as HMG-CoA reductase inhibitors and are used as antihypercholesterolemic agents. The majority of them are produced by fermentat...
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WO/2000/014043A1 |
A method for recovering substantially pure 2,4,6-tri-(tert-butyl)phenol from a mixture comprising alkylated phenols by subjecting the mixture to melt crystallization. In a preferred embodiment, the method is conducted in the absence of a...
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WO/2000/012589A1 |
The present invention relates to a method for the production of small spherical particles consisting totally or partly of at least one water-insoluble linear polysaccharide by dissolving the at least one water-insoluble polysaccharide in...
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WO/2000/009785A1 |
A crystal growing apparatus comprises a solid-state device (42) having a region (42a) where valence electrons are so controlled that the density of holes or electrons in the surface portion is controlled according to the environment of a...
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WO/1999/065585A1 |
A technique for treating an untreated liquid substance which can separate and remove effectively noxious substances such as PCB in liquid mixture; specifically, a treating method comprising a step of cooling an untreated liquid substance...
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WO/1999/059709A1 |
A process for preparing a crystal suspension of an organic compound which has a $g(D)H/RT value in the range of from 1 to 10, the process comprising dispersing a melt of the organic compound in a liquid dispersion medium to form an emuls...
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WO/1999/050190A1 |
A method and device for treating manganese containing water, wherein meltable manganese in water is removed by crystallizing by passing untreated water containing carbonic acid ions in an upstream direction to a fluidized-bed reaction co...
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WO/1999/048475A1 |
A process for the production of crystals with controlled surface smoothness, size, shape and degree of crystallinity, compositions comprising such crystals, and the use of certain crystals, especially lactose, lactose monohydrate, flutic...
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WO/1999/042601A1 |
A process for the isolation and purification of HMG-CoA reductase inhibitors from a mycelium biomass is described, which process comprises: clarifying a mycelium broth and concentrating the clarified broth to a lower volume, acidifying o...
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WO/1999/042191A1 |
A method and apparatus for dynamically controlling the crystallization of molecules including a crystallization chamber (14) or chambers for holding molecules in a precipitant solution, one or more precipitant solution reservoirs (16, 18...
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WO/1999/012623A1 |
A crystallisation process is described for separating a desired substance from an aggregate mixture in which an emulsion of droplets in a continuous phase containing the aggregate mixture is formed and supersaturated, characterised in th...
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WO/1999/006131A1 |
A method of refining a crystalline material, comprising charging from above a feed raw material crystal containing impurities in the solid form into a columnar continuous crystallization refining apparatus equipped with stirring means, m...
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WO/1999/002930A1 |
An evaporative condensation type ammonia refrigeration unit provided with a leakage ammonia gas removing means, wherein a high water solubility of ammonia is utilized for the recovery of a leakage ammonia gas and cooling water used for a...
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WO/1999/001380A1 |
The characteristic feature of the invention is that the whole quantity of the saline solution is separated by evaporation into a low saline containing liquid (4-100 mg/l of saline content) with at least a fresh water quality and into a c...
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WO/1998/058722A1 |
A process for the precipitation of a solute from a Dense Fluid Solvent in which a solution of the solute in a Dense Fluid Solvent is expanded under conditions such that the Dense Fluid Solvent passes from the Dense Fluid Solvent region o...
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WO/1998/056480A1 |
A freeze-concentrating apparatus for cooling an aqueous solution with a cooling cylinder (22) serving as a heat exchanger for cooling and continuously producing a suspension containing particles of ice crystals. The liquid component is s...
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WO/1998/039076A1 |
There is described a method for the treatment and processing of solutions of an organic fluid, water and one or more compounds of alkaline earth metals, alkali metals and metal ions, comprising the following steps: a) conducting a stream...
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WO/1998/037938A1 |
A crystallization apparatus comprising a crystallization tank (52), seed crystal feed means (70, 72) for feeding a seed crystal of a crystallization material to the crystallization tank, feed solution feed means (82, 84, 78) for feeding ...
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WO/1998/033782A1 |
The instant invention describes a method for crystallizing (-)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihy
dro-2H-3,1-benzoxazin-2-one from a solvent and anti-solvent solvent system and producing the crystalline product. The...
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WO/1998/027240A1 |
In order to separate metals and/or metal alloys of different melting points from one another, a mixture of these metals and/or metal alloys is brought to a temperature at which the metal or the metal alloy of relatively low melting point...
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WO/1998/025889A1 |
The invention concerns a method of separating a crystallizable organic compound from a liquid compound mixture by means of a single- or multi-stage suspension crystallization method, the crystals behind the final stage being separated by...
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WO/1998/025680A1 |
The invention concerns a method of separating organic compounds by single- or multi-stage suspension crystallization, each stage consisting of a crystallizer, optionally a crystallizer vessel, and a filter (7) for separating the liquid p...
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WO/1998/023350A1 |
A process for preparing a crystal suspension of an organic compound which has a $g(D)H/RT value greater than 10, the process comprising dispersing a melt of the organic compound in a liquid dispersion medium to form an emulsion, cooling ...
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WO/1998/019966A1 |
Disclosed is a method of separating NaCl from a NaCl contaminated aqueous LiCl solution involving concentration of the solution, cooling of concentrated solution and separation of the crystallized NaCl. The method is characterized in tha...
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WO/1998/014420A1 |
Crystals of crude benzoic acid whose volume density is not less than 0.2 g/cm?3� and whose average particle diameter is not less than 0.3 mm are put from above into a continuous crystallizer having a stirrer and a heating means and the...
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WO/1998/013133A1 |
A method of producing a granulated product having a soft texture comprises obtaining a substance in liquid form, the substance being solid at a given temperature, atomising the liquid substance, rapidly cooling the atomised liquid so tha...
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WO/1998/006667A1 |
Methods are disclosed in which first and second reactant salts, and, optionally, a complexing agent are added to a non-aqueous reaction solvent to form a reaction system. The reactant salts, which are substantially soluble and reactive w...
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WO/1998/006668A1 |
Methods are disclosed in which first and second reactant salts and a complexing agent are added to a non-aqueous reaction solvent in which the complexing agent is soluble. The complexing agent is a crown ether or other cyclic or acyclic ...
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WO/1998/003241A1 |
An installation for purifying particulate solids, especially a salt purification facility, comprises a vertically standing purification vessel (1) which has on top a fill aperture (10) for the solids to be purified, below an outlet apert...
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WO/1998/001204A1 |
The invention concerns a continuously operated, two-part crystallizer which is particularly suitable for the cleavage of racemic mixtures. The invention also concerns a process using said crystallizer for separating solids mixtures which...
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