Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 501 - 550 out of 2,333

Document Document Title
WO/2000/041985
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...  
WO/2000/038811
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...  
WO/2000/038812
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 ...  
WO/2000/039121
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...  
WO/2000/037420
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...  
WO/2000/032589
The present invention provides eletriptan hydrobromide monohydrate of formula (I) together with processes for preparing, uses of, and compositions containing, said monohydrate.  
WO/2000/030613
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...  
WO/2000/029102
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...  
WO/2000/027804
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...  
WO/2000/017150
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...  
WO/2000/016872
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...  
WO/2000/014043
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...  
WO/2000/012589
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...  
WO/2000/009785
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...  
WO/1999/065585
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...  
WO/1999/059709
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...  
WO/1999/050190
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...  
WO/1999/048475
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...  
WO/1999/042191
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...  
WO/1999/042601
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...  
WO/1999/012623
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...  
WO/1999/013034
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...  
WO/1999/006131
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...  
WO/1999/002930
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...  
WO/1999/001380
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...  
WO/1998/058722
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...  
WO/1998/056480
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...  
WO/1998/039076
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...  
WO/1998/037938
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 ...  
WO/1998/033782
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...  
WO/1998/027240
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...  
WO/1998/025680
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...  
WO/1998/025889
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...  
WO/1998/023350
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 ...  
WO/1998/019966
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...  
WO/1998/014420
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...  
WO/1998/013133
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...  
WO/1998/006668
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 ...  
WO/1998/006667
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...  
WO/1998/003241
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...  
WO/1998/001204
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...  
WO/1997/046526
Donepezil hydrochloride, 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride, is provided here in the form of four polymorphs which are stable against heat and humidity in the pharmaceutical use. They can be industr...  
WO/1997/041271
A method of producing sodium carbonate crystals (34) from a sodium carbonate-containing solution (14) including the steps of passing the sodium carbonate solution (14) to a precipitator (12), adding methanol (16) to the sodium carbonate ...  
WO/1997/032644
A process is described for separating a desired substance from an aggregate mixture in which process a three-phase dispersion is formed, the first phase comprising droplets containing the aggregate mixture, the second phase comprising a ...  
WO/1997/024302
A method for purifying a particular substance contained in a mixture, comprising the following steps (1) and (2a) or (2b) and permitting a particular substance having high purity to be relatively simply recovered in a high yield from a m...  
WO/1997/024303
A method for efficiently purifying a particular substance contained in a raw material mixture, comprising the steps of: (1) subjecting the raw material mixture in a liquid form or a slurry form wherein part of the particular substance ha...  
WO/1997/018879
A process for supercooling a liquid or solid wherein the solid or liquid is placed in contact with a coolant, the coolant having a temperature of at or just above the metastable limit temperature of the liquid or solid.  
WO/1997/014777
A method for crystallising fat to enable later fractionation, in particular by pressure filtering, wherein the fat is melted, the molten mass is divided into beads, the beads are fed into a pre-refrigerated aqueous solution, the fat conc...  
WO/1997/007121
Processes for the depletion of 7-ADCA in mixtures of vinyl-ACA with 7-ADCA via novel salts of vinyl-ACA or via chromatography.  
WO/1996/032095
A process for producing a pharmaceutical powder for inhalation comprising crystalline particles of an inhalation compound, comprising dissolving an inhalation compound in a solvent; and introducing the solution containing the inhalation ...  

Matches 501 - 550 out of 2,333