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WO/2002/044083 |
The invention relates to a process for the continuous preparation of very highly concentrated hydrogen peroxide having a content of greater than 80 wt.%, especially over 98 wt.%, by suspension crystallisation and after-treatment of the H...
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WO/2002/036487 |
The invention is directed towards a process for the concentration of aqueous hydrogen peroxide, comprising discontinuous crystallisation. According to the invention, a cooling surface arranged in a crystallising vessel and first wetted w...
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WO/2002/036668 |
The invention relates to a method for recovering nylon from a nylon-containing material by contacting the nylon-containing material with an alkanol-containing solvent at elevated temperature and at a pressure higher than the equilibrium ...
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WO/2002/028499 |
A method of crystallization which comprises feeding to a crystallization vessel either a solution of terephthalic acid or a slurry solution in which part of terephthalic acid has been precipitated, crystallizing the terephthalic acid in ...
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WO/2002/028498 |
A method for crystallization which comprises sending a solution or a slurry formed by partial precipitation of a solute to a crystallization tank, precipitating the solute in the crystallization tank to yield a slurry comprising crystals...
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WO/2002/027039 |
The present invention relates to a method for recovering a monosaccharide selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof from a solution containing the same by a multistep process using chromatogra...
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WO/2002/026374 |
A heat transfer device, comprising a mixing tank, a fluid circulating means for circulating fluid along the tank wall of the mixing tank, and at least one auxiliary heat transfer means installed in the mixing tank, wherein the auxiliary ...
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WO/2002/016003 |
The method involves: a) dissolving a compound (C) in a fluid (A) to obtain a solution (A); b) thermostatizing said solution (A) at a temperature ranging between -50° C and 200° C; c) adding a fluid (B) to said solution (A) until pressu...
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WO/2002/014286 |
The present invention is directed to the novel forms of risperidone, designated Form A, Form B and Form E. Methods for their preparation are also disclosed. The present invention also relates to processes for making risperidone. Pharmace...
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WO/2002/011851 |
An installation for continuous crystallization of liquids by freezing to form a bubble slurry with crystal nuclei, gas bubbles and concentrated unfrozen liquid. The installation includes a pumpless refrigeration circuit with a compressor...
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WO/2002/005973 |
A method of inducing solidification in a fluid composition comprising a cosmetic active, a crystalline organic structurant and a carrier, comprising exposing the fluid composition to ultrasound or converting the composition to a soft sol...
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WO/2002/005921 |
The present invention relates to a process for the crystallisation of a solid phase from a liquid, characterised in that the liquid during crystallisation is subjected to ultrasound in the absence of transient cavitation. In particular t...
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WO/2002/000200 |
The present invention relates to a novel process for preparing crystalline particles of a salt of a substance, particularly particles of therapeutically useful or carrier substances of a size suitable for inhalation therapy.
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WO/2002/000199 |
The present invention relates to a novel process for preparing and harvesting crystalline particles, particularly particles of therapeutically useful or carrier substances of a size suitable for inhalation therapy.
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WO/2002/000198 |
The present invention relates to a novel process for preparing and harvesting crystalline particles, particularly particles of therapeutically useful or carrier substances of a size suitable for inhalation therapy.
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WO/2001/096306 |
The invention relates to a method that can be used on a large scale for dynamic enantiomer separation of piperidone derivatives of general formula (1), wherein R?1¿, R?2¿, R?3¿ and n can have the meanings given in the description and ...
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WO/2001/094302 |
A process for the purification and isolation of a chemical compound, by extractive solution crystallization. The process comprises combining in any order a first solvent, a second solvent, and a mixture comprising a chemical compound wit...
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WO/2001/094457 |
A process is disclosed for recovering polyamide material from post-industrial and post-consumer products containing the polyamide material and insoluble materials. The process includes the steps of: (a) contacting the post-industrial and...
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WO/2001/091874 |
The invention relates to a device and to a method for crystallizing substances from solutions or dispersions containing said substances in a crystallizer that comprises a classifying zone (3) and that is further provided with a) an inner...
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WO/2001/091875 |
A continuous vacuum pan includes a cylindrical housing having a vertical axis; at least one liquid heating pan within the housing; a vertical tube, floating calandria within the liquid heating pan, the vertical tube floating calandria ha...
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WO/2001/090040 |
The invention relates to a method for isolating poly- or monomethyl alkanoic acids of the general formula (I), wherein R is the same or different and represents a substituted or unsubstituted hydrocarbon or a methylol group that is produ...
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WO/2001/090041 |
The invention relates to a method for the selective crystallization of poly- or monomethylol alkanoic acids of the general formula (I), wherein R is the same or different and represents a methylol group or a substituted or unsubstituted ...
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WO/2001/087835 |
The invention concerns $g(a) crystalline form of the compound of formula (I), characterised by its X-ray diffraction pattern on powder. The invention is useful for preparing medicines.
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WO/2001/087836 |
The invention concerns the $g(b) crystalline form of the compound of formula (I), characterised by its X-ray diffraction pattern on powder. The invention is useful for preparing medicines
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WO/2001/083439 |
The invention concerns a $g(g) crystalline form of a compound of formula (I) characterised by its X-ray diffraction pattern on powder. The invention is applicable to medicines.
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WO/2001/080963 |
The efficient physical process for freeze concentration of aqueous solutions is based on ice crystal transformation, which results in very rapid growth of ice crystals and grain-shaped and agglomerated large crystals without inside entra...
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WO/2001/079214 |
Chloride is selectively isolated as NaCl from N-phosphonomethyliminodiacetic acid process wastes by evaporative crystallization of the caustic neutralized brine.
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WO/2001/074332 |
A method for making a composition comprising active particles comprising an active substance comprises the steps of a) providing an emulsion having a dispersed phase comprising a solution of the active substance in a solvent and b) induc...
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WO/2001/075415 |
A device for promoting protein crystal growth (PCG) using microfluidic channels. A protein sample and a solvent solution are combined within a microfluidic channel having laminar flow characteristics which forms diffusion zones, providin...
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WO/2001/074749 |
An alternative and improved method for cleaning cooling and/or crystallization surfaces of a crystallizer fouled with a crystallized bisphenol as a result of processing a slurry derived from the production of bisphenol is provided. The m...
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WO/2001/072736 |
A method for purification of cyclic ester, which comprises feeding a crude cyclic ester as raw material crystals to an inlet (3) for raw material crystals disposed at a lower portion of a purification tower (1) being cylindrical and exte...
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WO/2001/072315 |
The invention relates to a method for obtaining triterpenes from plants and/or the constituents thereof, in addition to an emulsion whose aqueous and fatty phase is emulsified by the plant extract. The plant extract contains at least one...
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WO/2001/070721 |
The invention concerns a method for purifying the dimeric cyclic ester of lactic (or glycolic) acid starting from a raw lactide (or glycolide) comprising impurities, the method consisting in: extractive and controlled crystallization of ...
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WO/2001/070744 |
The present invention provides a process for the synthesis of compounds of formula (II), or pharmaceutically acceptable salts thereof.
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WO/2001/070740 |
A process for producing crystalline form I of cabergoline, which process comprises crystallization of the desired form from a toluene/diethyl ether mixture comprising raw cabergoline, followed by recovery and drying of the resulting crys...
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WO/2001/066508 |
A process for recovering a desired organic acid from a solution includes the steps of: providing an aqueous solution including at least one desired organic acid or its acid anion; adjusting the proton concentration in the aqueous solutio...
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WO/2001/066215 |
A method for repeatedly converting a solvent from a state of solvent to a state of antisolvent with relatively little loss of solvent. The method is used to allow for processing of large amounts of solute material with minimum amounts of...
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WO/2001/056956 |
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/2001/045850 |
The present invention consists in a particle classifier for segregating particles of a predetermined size or density range from a suspension of the particles wherein the size and/or density of the suspended particles varies with time, th...
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WO/2001/046105 |
The invention relates to a method for producing Bis(4-hydroxyaryl)alkanes of high purity from adducts of Bis(4-hydroxyaryl)alkanes and aromatic hydroxy compounds which are obtained by means of acid-catalysed conversion of the aromatic hy...
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WO/2001/046104 |
The invention relates to a method for separating Bis(4-hydroxyaryl)alkanes from adducts of Bis(4-hydroxyaryl)alkanes with aromatic hydroxy compounds. The crystallised, filtered and purified Bis(4-hydroxyaryl)alkane/arylhydroxy adducts wh...
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WO/2001/046148 |
A process for the manufacture of the (-) trans piperidine carbinol (1) by a process comprising contacting a racemic mixture of the piperidine carbinol in solution with (-)-ditoluoyltartaric acid, crystallising the (-)-ditoluoyltartaric a...
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WO/2001/042134 |
The present invention relates to a novel crystalline disodium pamidronate 3∼4hydrate and a process for preparing it. More particularly, crystalline disodium pamidronate 3∼4hydrate of formula (I) having the water content of 17.0∼20....
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WO/2001/036325 |
A separator for separating a meltable solid from a mixture with other solids has a tank for holding a fluid; a container at least partially inside the tank, made at least in part of a screen through which the fluid can pass and melted so...
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WO/2001/034574 |
The present invention relates to a stable crystalline form of N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinami
ne hydrochloride designated the B polymorph, its production in essentially pure form, and its use. The invention a...
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WO/2001/032125 |
Novel Apparatus and Process for Preparing Crystalline Particles An apparatus for preparing crystalline particles of a substance suitable for inhalation therapy comprises (i) a first reservoir 3 of said substance dissolved in a liquid sol...
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WO/2001/030759 |
NHE-1 inhibitor crystal of Formula (I), methods of using such NHE-1 inhibitor crystal and pharmaceutical compositions containing such NHE-1 inhibitor crystal. The NHE-1 inhibitor crystal is useful for the reduction of tissue damage resul...
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WO/2001/028958 |
The invention is directed to a process for recovering a crystalline material from an aqueous solution, which solution also contains organic contaminants, in which process the material is crystallised from the aqueous solution by freeze c...
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WO/2001/024921 |
A gallium nitride growth process forms crystalline gallium nitride. The process comprises the steps of providing a source gallium nitride (15); providing mineralizer (17); providing solvent (17); providing a capsule (10); disposing the s...
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WO/2001/014290 |
An apparatus for purifying crystals wherein an opening (3) for charging crystals of a raw material and an opening (4) for withdrawing out purified crystals as a product are disposed at a lower portion and an upper portion, respectively, ...
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