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Patent Searching and Data


Matches 1,601 - 1,650 out of 8,782

Document Document Title
WO/2000/006616A1
A continuous, preferably counter-current, extraction process that can be used to significantly reduce the concentrations of residual monomers, residual catalyst, undesired solvents, and other impurities in polymer compositions. The inven...  
WO1999063545A3
Nuclear fuel dissolution apparatus comprises a perforated sloping ramp (6) located within a process chamber (1). A pulsation member creates pulses in the solvent in the container, and the perforations of the sloping ramp are designed to ...  
WO/2000/003950A1
A method for preparing nanoparticles for use, from a mixture of nanoparticles with another material, the method comprising washing the mixture with a solvent in which the nanoparticles are soluble to remove the said other material and fo...  
WO/2000/000265A1
The present invention involves a simple, disposable, manual filtration and extraction device and method of use that provides a sample directly to an analytical method. The device is capable of providing a clarified liquid ready for analy...  
WO/1999/065504A1
The invention relates to a method of extracting a compound from vegetable material, wherein the vegetable material is reduced and treated with a solvent. According to the invention, the vegetable material is frozen using a liquid nitroge...  
WO/1999/064027A1
An extract of $i(Hypericum perforatum) obtained by fractioning water-alcoholic, alcoholic or acetonic extracts of the plant with water-immiscible esters of C¿1?-C¿5? alcohols.  
WO/1999/063545A2
Nuclear fuel dissolution apparatus comprises a perforated sloping ramp (6) located within a process chamber (1). A pulsation member creates pulses in the solvent in the container, and the perforations of the sloping ramp are designed to ...  
WO/1999/058611A2
A process for extracting carotenes from carotene-containing materials, in particular from fats and oils of biological origin, which provides for extraction of said carotene-containing material with an extractant comprising at least one m...  
WO/1999/057217A1
The invention concerns fluids that have a low reactivity with respect to ozone formation, blends thereof, and the replacement of conventional industrial solvents with said fluid or fluid blends in order to reduce tropospheric ozone forma...  
WO/1999/051315A1
The invention relates to a liquid-liquid extraction device, whereby the solvent phase is the light phase and the raffinate phase is the heavy phase. The inventive device comprises a mixer-separator battery in the form of a tower. The mix...  
WO/1999/051364A1
A separation method includes (a) providing a heterogeneous separation system, the heterogeneous cleaning system comprising CO¿2? in a first phase and an oil in a separate second phase; (b) entraining a material to be separated in the se...  
WO/1999/051795A1
The invention relates to a method for preparing alkaline etching solutions containing metal, whereby a liquid-liquid extraction is carried out, the etching solution forms a heavy phase, an organic solution forms a light phase and the met...  
WO/1999/048501A1
The invention concerns voacamine as anti-malarial agent active against Plasmodium falciparum strains, including the resistant strains, as well as an anti-malarial agent containing as main active principle voacamine. A basic Pescheria ext...  
WO/1999/047190A1
A method and system for use in the course of extracorporeal blood flow, e.g., cardiopulmonary bypass, dialysis, and angioplasty procedures, in order to reduce or minimize inflammation, excessive bleeding, and other undesirable side effec...  
WO/1999/044733A1
A method for forming particles of a substance, comprising: (a) preparing a solution or suspension (6) of the substance in a vehicle; (b) introducing the solution or suspension into a particle formation vessel (1) via a fluid inlet means ...  
WO1999026996A3
A process is disclosed for continuously extracting polyamide particles from a circulating extraction solution in a vertical extraction column subdivided into two zones. The polyamide is treated in the first zone with an aqueous epsilon -...  
WO/1999/043407A1
The invention relates to a method for extracting polyamide particles or polymer particles which contain polyamides with aqueous extraction agents. According to the invention, aqueous solutions of amino nitriles and optional additional mo...  
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...  
WO/1999/038392A1
The invention relates to a method and a device for extracting plant ingredients, especially for extracting plant ingredients in a pure form which is free from decomposition products, secondary products and/or undesirable components.  
WO/1999/034916A1
A process is described for the preparation of electrostatically-linked, aliphatic- or alicyclic-substituted anionic or cationic polysaccharide gels from readily available macroporous ionic polysaccharide chromatographic media. Examples o...  
WO/1999/034810A1
A process is described for the isolation, recovery and purification of non-polar extractives using one or more extracting solvents from the group of lower alcohols, ketones, and water. The non-polar extractives may include one or more of...  
WO/1999/033559A1
A cartridge (101) for separating a desired analyte from a fluid sample includes a sample port (103) and a sample flow path extending from the port through the body of the cartridge. The sample flow path includes at least one flow-through...  
WO/1999/033862A1
The present invention is directed to novel methods for enhancing the ability to separate a species of interest from other different species present in a free solution mixture thereof which takes advantage of interactions that occur betwe...  
WO/1999/031315A1
A method for separating cellulosic components from, and determining cellulosic component content of, plant material. Plant material and an electromagnetic active solvent, e.g. ethanol, are heated by means of electromagnetic radiation (e....  
WO1999004883A9
Ammonia is removed from synthesis gas, or other gaseous solvents by utilizing a sorbent to remove the ammonia followed by an in situ regeneration of the sorbent and recovery of the ammonia. The ammonia is sorbed onto the bed of sorbent, ...  
WO/1999/028000A1
A process for separation of heavy metal and halogen from unwanted waste material or residue. Halogen is selectively extracted or washed out from the waste material. Metal is selectively extracted or washed out from the essentially haloge...  
WO/1999/028286A1
Process to separate rhodium from an organic starting mixture comprising of an organic solvent, C¿6?-dicarboxylic acids and iodide compounds, wherein rhodium is separated by extracting the organic starting mixture with an aqueous solvent...  
WO1999018939A9
Undesirable materials present in gelatin, cellulose or plastic capsules used for storing a dry, powdered pharmaceutical formulation are extracted by supercritical fluids. The method is also used for removing undesirable material from dru...  
WO/1999/026996A2
A process is disclosed for continuously extracting polyamide particles from a circulating extraction solution in a vertical extraction column subdivided into two zones. The polyamide is treated in the first zone with an aqueous $g(e)-cap...  
WO/1999/026707A1
The invention relates to a counter-current extraction process with which the starting material to be extracted is conveyed in an extruder through zones of high and low pressure. The zones of high and low pressure can, for example, be for...  
WO/1999/026903A1
The invention concerns a method for extracting an organic molecule or a group of organic molecules from a raw material or for purifying an extract obtained by a conventional extraction method characterised in that it consists in using a ...  
WO/1999/025726A1
An apparatus and method for recovering bioproducts from a feed solution. In one embodiment, the apparatus includes a module housing, a membrane disposed in the housing for filtering the bioproducts from the feed solution, and an adsorben...  
WO/1999/022837A1
The present invention relates to a mass exchange process, in which, in two or more contact stages, two or more liquid or gaseous phases are brought into contact with one another, one or more components being transferred between the phase...  
WO/1999/021634A1
Process and a plant to extract and concentrate tannins from wood and from other solid natural products containing it characterised in that the solid products are subjected to an extraction (1) by percolation with water and/or steam and t...  
WO/1999/021654A1
The invention concerns inorganic-organic hybrid gels for extracting species such as lanthanides and actinides, and their preparation. Said gels comprise a system of inorganic units of formula (I) in which M represents Si, Ti, Zr or Al, w...  
WO/1999/019523A1
A unique filtration device (10) which removes metal ions from a contaminated aqueous stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid (18) which can capture the metal ions in the aqueous s...  
WO/1999/018939A1
Undesirable materials present in gelatin, cellulose or plastic capsules used for storing a dry, powdered pharmaceutical formulation are extracted by supercritical fluids. The method is also used for removing undesirable material from dru...  
WO/1999/014160A1
A method of removing from a metal salt ionic species contained therein involves contacting the metal salt with an ionic liquid to dissolve the metal salt, the ionic species or both. At least in the case where both the metal salt and the ...  
WO/1999/013116A1
Processes for the recovery of gold and/or silver from lixiviant solutions include a preliminary step of: (a) contacting the lixiviant solution with ion exchange resins containing amine functionality, optionally dispersed or distributed w...  
WO/1999/013130A1
The present invention relates to a method for preparing alkaline metal-containing etching solutions. This method comprises carrying out a liquid-liquid extraction in which the etching solution represents the heavy phase while an organic ...  
WO/1999/011349A1
A counter-current extractor for extracting an extract is disclosed which includes a housing (12) being a screw-conveyor (24) rotated by a motor (26). The housing (12) is inclined and includes a sump (35). A leaching fluid inlet (50) is p...  
WO/1999/011830A1
In a method according to the invention, a dispersion coming from a mixer part is conducted from downwards to the liquid part of the settler, into the middle part of the feed end, wherefrom it is set to be distributed to inside the settle...  
WO/1999/010087A1
The invention concerns a method for separating actinides and lanthanides by membrane transport using a calixarene which consists in introducing in compartment (3) a first aqueous solution containing at least one metal to be separated fro...  
WO/1999/006057A1
A description is given of novel soya extracts having a defined ratio of soya saponins to glucoside isoflavones; processes for their production; and pharmaceutical compositions containing these extracts.  
WO/1999/006132A1
To adsorb, on solid adsorbent particles, constituents dissolved in liquid, or to desorb (extract), from solid desorbent particles, soluble constituents in liquid, in a container a packed bed formed from granular material is mixed with ad...  
WO/1999/004883A1
Ammonia is removed from synthesis gas, or other gaseous solvents by utilizing a sorbent to remove the ammonia followed by an in situ regeneration of the sorbent and recovery of the ammonia. The ammonia is sorbed onto the bed of sorbent, ...  
WO/1999/000330A1
In one embodiment, this invention pertains to desalination of seawater by feeding methane into seawater at a depth exceeding 100 meters to form methane hydrate which rises to where it is decomposed into methane and water, and recovering ...  
WO/1999/000352A1
Dilute solutions of fermentation sales may be concentrated by extracting water using low-miscibility, low-molecular-weight secondary and tertiary amines, e.g. triethylamine (TEA), diisopropyl amine (DIA), N,N-diethylmethylamine (DEMA), a...  
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...  
WO1998037939A3  

Matches 1,601 - 1,650 out of 8,782