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WO/2003/063997 |
The invention relates to a method and apparatus for processing a suspension. According to the invention, a suspension is led into a washing column in which at least one filter element is present, so that near the filtering element, a pac...
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WO/2003/061816 |
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 apparatus for the preparati...
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WO/2003/059852 |
A para-xylene recovery process including adsorption apparatus containing a para-selective adsorbent to separate para-xylene and ethylbenzene from a C¿8? aromatic hydrocarbon stream, said process operated isothermally in the vapor phase ...
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WO/2003/059890 |
The invention relates to a method for the production and purification of 1,7'-dimethyl-2'-propyl-2,5'-bi-1H-benzimidazole applicable to large-scale production.
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WO/2003/057717 |
A method for reducing the particle size of amino acid crystals using ultrasound is discussed.
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WO/2003/057341 |
The invention relates to a chamber for the crystallization of solid catalyst carrier. The chamber is provided with an acoustic generator (9) for loosening the carrier from the walls of the chamber.
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WO/2003/055570 |
The present invention concerns a method and an apparatus for separating dry matter from liquid, comprising providing an enclosed separation environment capable of being pressure regulated, and in said enclosed separation environment cont...
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WO/2003/056038 |
The invention relates to a chromatographic separation process of recovering mannose with high purity. The invention is based on the use of a chromatographic separation resin including a resin which is at least partly in a Ba?2+¿ form re...
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WO/2003/047553 |
The invention provides an apparatus for forming fine particles of a substance in a precipitation chamber, in which the apparatus has means to convey the fine particles from the precipitation chamber to at least one particle collection ch...
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WO/2003/041833 |
The invention relates to a device for performing the purifying separation of crystals out of their suspension in an impure crystal melt, comprising a hollow cylindrical column (45) that delimits a concentration zone and a washing zone. A...
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WO/2003/041832 |
The invention relates to a method for performing the purifying separation of crystals out of their suspension in a mother liquor that involves the use of a washing column with forced transport. According to the invention, the end that en...
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WO/2003/035035 |
The present invention relates to a novel process for preparing crystalline particles of substance which comprises mixing a solution of the substance in a liquid solvent with a liquid anti−solvent for said substance, which liquid antiâˆ...
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WO/2003/035240 |
A system for processing supercritical and subcritical fluid capable of bringing the inside of at least one processing container (1) formed in a flow passage into a supercritical or subcritical high pressure field, wherein thermal operati...
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WO/2003/033097 |
The present invention relates to the use of a high intensity, in-line rotor-stator apparatus to produce fine particles via antisolvent, reactive, salting out or rapid cooling precipitation and crystallization.
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WO/2003/033098 |
A method for removing an ion to be removed being present in a solution by the crystallization method, characterized in that a solution to be treated and an ion capable of forming a slightly soluble salt through the reaction with the ion ...
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WO/2003/032951 |
A process for preparing crystalline particles of a drug substance is disclosed, said process comprising recirculating an anti-solvent through a mixing zone, dissolving the drug substance in a solvent to form a solution, adding the soluti...
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WO/2003/028664 |
Levofloxacin was prepared by reacting (S)-(-)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-pyrido[1
,2,3-de][1,4]benzoxazine-6-carboxylic acid with N-methyl piperazine in a polar solvent or in a neat mixture to form levofloxacin. Further ...
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WO/2003/028665 |
Levofloxacin has been purified by dissolving levofloxacin in a polar solvent at an elevated temperature and crystallizing purified levofloxacin. Preferably, an antioxidant is added to increase the purity.
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WO/2003/026659 |
The present invention provides low hygroscopic forms of aripiprazole and processes for the preparation thereof which will not convert to a hydrate or lose their original solubility even when a medicinal preparation containing the aripipr...
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WO/2003/024562 |
The invention is directed to a hydraulic annular washing column for continuously separating solids from a suspension comprising: a hollow cylindrical column having a central axis therethrough, said column having an interior with a cross-...
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WO/2003/022544 |
The invention relates to a device (1) for continuous heat treatment of granulated materials, especially to the crystallization of polymer granulate, such as polyethylenterephthalate (PET) for example. The device comprises several adjacen...
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WO/2003/022804 |
Among its several embodiments, the present invention provides an improved process for the preparation of tetrahydrobenzothiepine-1,1-dioxide compounds; the provision of a process for preparing a diastereomeric mixture of tetrahydrobenzot...
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WO/2003/016576 |
A continuous pan crystalliser for use in the sugar industry includes a heated zone in the form of a steam chamber (32) below a calandria (22). The heated zone minimizes cooling of massecuite in the area below the calandria in the pan and...
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WO/2003/013683 |
The invention involves methods and products related to the micronization of hydrophobic drugs. A method of micronizing hydrophobic drugs using a set of solutions including an aqueous solution is provided. The invention also relates to pr...
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WO/2003/014084 |
The invention describes novel lercanidipine crude Forms (A) and (B), novel lercanidipine hydrochloride crystalline Forms (I) and (II) obtained form said crude Forms, pharmaceutical, antihypertensive compositions containing as active agen...
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WO/2003/004500 |
Provided are cucurbituril derivatives having the formula (1), their preparation methods and uses: where X is O, S or NH; R¿1? and R¿2? are each independently selected from the group consisting of hydrogen, alkyl groups of 1 to 30 carbo...
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WO/2003/002225 |
This invention relates to a method of preparing nanoparticle coated crystals comprising the steps of providing a mixture comprising nanoparticles and a solution of a crystal forming material; and coprecipitating the nanoparticles and the...
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WO/2002/102777 |
The present invention is related to novel polymorph of Fexofenadine and Fexofenadine hydrochloride of formula 1 and process of preparation thereof. The present invention is also directed to provide pure novel polymorphs of Fexofenadine a...
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WO/2002/103038 |
The invention relates to an enzymatic method of producing 4-0-$g(b)-D-galactopyranosyl-D-xylose which is used for the in vivo evaluation of intestinal lactase activity in humans. The inventive method consists in: a) reacting D-xilose wit...
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WO/2002/100932 |
A method for obtaining LDPE from used plastic films, comprising the following steps: low-molecular components are extracted from the film material which is dissolved in a second organic solvent; the film material thus treated is dissolve...
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WO/2002/098835 |
Disclosed is a method for the recovery of crystalline therephthalic acid containing less than 150 ppmw p-toluic acid by subjecting a solution of therephthalic acid containing minor amounts of p-toluic acid to crystallization in a crystal...
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WO/2002/098836 |
Disclosed is a process for the production of terephthalic acid by a plurality of process steps including the catalyst oxidation of a dialkylbenzene compound, a second oxidation, a hydrogenation of the product of the second oxidation, and...
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WO/2002/096532 |
A trigger mechanism used for initiating a phase change in a variable liquid element by an activating material. The trigger mechanism also relates to a variable liquid element enclosed in a container with at least one perforation in the c...
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WO/2002/089942 |
Small crystals are made by mixing a solution of a desired substance with an anti-solvent in a fluidic vortex mixer in which the residence time is less than 1 s, for example 10 ms. The liquid within the fluidic vortex mixer (12) is subjec...
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WO/2002/089944 |
High purity ammonium dimolybdate or molybdenum oxide is produced by the pressure oxidation of low grade molybdenite concentrates or molybdenum intermediates. The process entails nearly complete oxidation of the sulfide minerals while opt...
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WO/2002/085329 |
The invention relates to a method for the continuous production of medicaments for inhalation, a device for carrying out said method and a medicament produced by said method. The aim of the invention is a method which guarantees that the...
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WO/2002/083568 |
A method for producing high purity potassium fluorotantalate crystals or high purity potassium fluoroniobate crystals, characterized in that a recrystallization process comprises the first step of cooling a saturated solution from a diss...
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WO/2002/083938 |
This invention relates to crystallization based assays for identifying ligands that bind to a macromolecule.
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WO/2002/078863 |
A method and device for generating pharmaceutical agent particles using focused acoustic energy are provided. A solution of the pharmaceutical agent is provided in a solvent, which may be an aqueous fluid, a nonaqueous fluid, or a superc...
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WO/2002/077085 |
A method of recovering polyvinyl chloride from a waste comprising polyvinyl chloride which comprises: the step of removing the insoluble solid matter from a heated mixture of the waste and a solvent in which polyvinyl chloride is soluble...
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WO/2002/068107 |
An apparatus is described for micron and submicron particles formation of a substance using the GAS process, comprising a particles formation vessel (22) and means for introducing a solution of the substance and a supercritical fluid int...
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WO/2002/064597 |
The invention relates to a method for purifying 20(S) camptothecin by transforming the lactone ring of the 20(S) camptothecin into a carboxylate salt with the help of an aqueous base, hydrogenating the mixture that is obtained in the pre...
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WO/2002/062705 |
A system and method for producing salts using a crystallizer with an integrated column is disclosed. In the column, liquid, containing one reactant, absorbs a second reactant, from the gas stream. The second reactant reacts with the firs...
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WO/2002/055177 |
The invention concerns a draining tank (10) for a granular material/liquid mixture comprising a low part (12) and a high part (16) provided with a lid (18). A device for separating (28) the liquid and the granular material is arranged in...
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WO/2002/055529 |
A method for recovering soy saponis which comprises extracting a soy isoflavone concentrate derived from soy molasses with a mixture of acetone and water, removing undissolved solids from the extract, cooling the extract such that soy sa...
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WO/2002/050319 |
This invention relates to a method where sulfidic iron-bearing copper concentrate is leached on the countercurrent principle, in a chloride environment. The leaching takes place with the aid of bivalent copper and an oxygen-bearing gas a...
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WO/2002/048245 |
The invention relates to a method for separating at least one selected polymer from a mixture of polymers, comprising the following steps: (a) dissolving the mixture of polymers in a first solvent, with the concentration of the polymer m...
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WO/2002/048046 |
A process for the recovery of arsenic trioxide from acid solutions, particularly the aqueous acid effluent produced by a gas-washing process in the pyrometallurgy of copper sulfide ores is provided. Generally, the process comprises conce...
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WO/2002/043732 |
The present invention provides novel forms of atorvastatin designated Forms VI, VIII, IX, X, XI and XII and novel processes for their preparation as well as processes for preparing atorvastatin Forms, I, II, IV, V and amorphous atorvasta...
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WO/2002/044123 |
A conversion process of gabapentin hydrochloride into gabapentin comprising: a) dissolution of gabapentin hydrochloride in a solvent in which the gabapentin hydrochloride and the gabapentin are completely soluble; and b) subsequent addit...
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