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WO/1995/015802A1 |
A method of separating a first liquid from a second liquid in a mixture or suspension of the two liquids, the first liquid having a substantially higher electrical conductivity than the second liquid, which method includes the step of ap...
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WO/1995/015566A1 |
A process for the removal of contaminants from particulate material. The process includes the steps of feeding a feedstock of the particulate material through a series of treatment stages in which it is contacted with a washing liquid an...
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WO/1995/010636A1 |
Palladium catalyst is recovered from an organic solution by extraction with water/base solution. The water/base solution is then neutralized, and the palladium extracted with an organic solvent. The tramp metals remain in the water phase.
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WO/1995/005091A1 |
Small particles and fines included along with larger subdivided solids are treated with liquid to extract soluble solids therein in an apparatus and process using milli-screens (18) with milli-sized openings of less than about 0.095 inch...
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WO/1995/004702A1 |
A process for purification of hydrogen peroxide, the process including providing a source of crude aqueous hydrogen peroxide including organic contaminants; introducing the aqueous hydrogen peroxide into a separation means which includes...
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WO/1995/004600A1 |
The process for washing granular and/or particulate materials comprises subjecting a continuous flow of said material to the action of ultrasonic waves in a washing liquid flow. The ultrasonic waves are generated at the periphery in the ...
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WO/1995/004835A1 |
A method for the recovery of a metal from an organic complex thereof, said method comprising treating the complex with a weakly acid aqueous solution of ammonium chloride having a chloride content of at least 4 molar whereby said complex...
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WO/1995/003866A1 |
Consumable apparatus for multiphase, multistage countercurrent liquid separation.
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WO/1995/003840A1 |
An improved separating device for extracting cholesterol from plasma uses a spinner (45) to disperse incoming plasma laterally into an extracting solvent in the form of fine droplets to improve separation efficiency thereby making it sui...
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WO/1995/003106A1 |
A variable-orifice fluid restrictor (11) for use with a supercritical extractor or chromatograph includes an inlet line for fluid at a pressure above its critical pressure, an extended tubular probe having an inner and an outer surface a...
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WO/1995/003104A1 |
Liquid-liquid extraction apparatus (14) includes an extractor unit (8, 9, 10) where a first liquid contacts a second liquid so a component is transferred from the first liquid to the second liquid. A separator (40) having an inlet (38) a...
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WO/1995/002410A1 |
The method proposed for the preparation of liquid plant extracts is characterized in that an aqueous solution of one or more non-ionic surfactants is used as the extraction liquid.
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WO/1995/001221A1 |
The invention provides a method for the formation of a particulate product which comprises the co-introduction of a supercritical fluid and a vehicle containing at least one substance in solution or suspension into a particle formation v...
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WO/1995/000602A1 |
An apparatus for the extraction of peat comprises an outer tank (1) and an inner tank compartment (3) having perforated walls (4, 23) and being the actual container for peat to be extracted. Feeding pipes (13) for the supply of extractin...
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WO/1994/028735A1 |
A counter current extractor comprising an elongate housing with a screw conveyor therein and having strainer means at one end thereof to filter a liquid phase passing out of the counter current extractor, wherein the strainer means is pr...
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WO/1994/026683A1 |
The invention relates to a process and device for producing squalene from olive oil residues, said process comprising four stages which may, if necessary, be reduced to two and are: saponification, cracking and esterification of the fatt...
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WO/1994/026126A1 |
A method and apparatus for the continuous countercurrent treatment of roast and ground coffee particles in which a bed of the coffee particles is suspended in an aqueous liquid and the suspended bed is agitated in a manner which facilita...
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WO/1994/026377A1 |
A liquid/liquid or solid/liquid contactor comprising a substantially hollow cylindrical outer shell, and a rotor assembly mounted for rotation within the interior of said shell, the rotor assembly including a plurality of axially spaced ...
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WO/1994/024338A1 |
The present invention relates to a process for making copper foil from copper-bearing material comprising: (A) contacting said copper-bearing material (10) with an effective amount of at least one aqueous leaching solution (40); (B) cont...
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WO/1994/024138A1 |
Calix|4|arene crown ethers formula (I), wherein R1 is a group of formula X(C2H4X)m and X(C2H4X)nYX(C2H4X)n where X=0 or N(R4), m=3, 4, 5 or 6, Y=cycloalkylene or arylene and n=1, 2, or 3. Such calix|4|arene crown ethers whose benzene nuc...
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WO/1994/021345A1 |
Toxic cyanide and anionic metal species are removed from aqueous alkaline solutions by contacting the aqueous alkaline solutions with a compound which is capable of being protonated at a pH of 9 or above.
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WO/1994/020189A1 |
To avoid deposits on the restrictor that channels extractant into a collector (1901), a heated capillary tube (1900) pressure release restrictor has a thermally insulated outlet end in a collecting trap (1908) substantially colder than t...
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WO/1994/020188A1 |
To collect analyte in a supercritical fluid extraction process, the extractant flows to a collection container (130) under pressure. In one embodiment, the collection container (130) contains collection solvent (144) through which the ex...
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WO/1994/020486A1 |
Method and apparatus are described for isolating taxoids from taxoid containing source materials. The method and apparatus isolate taxoids from waxes and other constituents of the ornamental yew tree needle with the use of critical or ne...
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WO/1994/020197A1 |
A process is described for the separation of solutes dissolved in a gaseous solvent. The process is useful in the extraction and recovery of solutes using supercritical fluid extraction, and in the purification of impure steam. The proce...
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WO/1994/020192A1 |
A method of performing a solid phase extraction on an aqueous fluid using a hydrophobic, solid-phase extraction medium (40), which method comprises: (a) placing (10) a hydrophobic, solid phase extraction medium (40) inside of a pressuriz...
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WO/1994/020190A1 |
To supply supercritical fluid to an automatic supercritical fluid extractor and collect extract from the extractor, sample holding cartridges (30A) are lifted one by one in series by an elevator plug into a pressure chamber (24A). An inl...
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WO/1994/017889A1 |
A process and apparatus for efficiently and economically separating organic chemicals, that have an affinity for water and carbon dioxide, from water using liquefied carbon dioxide extraction. A secondary reboiler (18) with external heat...
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WO/1994/016791A1 |
A solvent extraction process and unit (1a) are used to determine a constituent to be extracted from a sample. The sample is boiled in the extraction unit, together with the solvent, while a liquid extraction is carried out. A vapour extr...
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WO/1994/015483A1 |
Novel foods, nutraceuticals, and pharmaceutical products are produced from conventionally known solvent extraction comprising contact of the oil-bearing material (material bed 14) with a normally gaseous solvent (vessel 1) within an extr...
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WO/1994/013377A1 |
The invention relates to a device and process, such as supercritical extraction, for separating a mixture or extracting a material, in which at least the following steps are carried out: a) treatment of the mixture or material with an ex...
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WO/1994/013378A1 |
A process for the separation of a mixture of zinc and manganese oxides by adding the mixture to a chloric acid solution whereby the chloric acid solution oxidizes solid manganese oxide to solid manganese dioxide and causes the zinc oxide...
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WO/1994/013733A1 |
Method for eliminating pollutants of low molecular weight contained in a part of which the basic material is selected in the group comprised of plastic materials and elastomer materials, said method including a step for extracting the po...
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WO/1994/012525A1 |
Natural pulmonary surfactant material, consisting of a mixture of phospholipids and a small percentage of specific proteins, is purified by means of supercritical fluids, particularly with CO2.
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WO/1994/012502A1 |
Bis-crown calix[4]arenes of formula (I), wherein R1 and R2 are X(C2H4X)m and X(C2H4X)n respectively, wherein X = 0, NH and/or N(CH3), m and n = 3, 4, 5 or 6, or X(C2H4X)p/2 and YX(C2H4X)p/2 respectively, wherein p = 2 or 4 and Y = cycloa...
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WO/1994/012683A1 |
Apparatus and methods for removing polyvalent by-product anions, e.g. borate and orthophosphate ions, from electroless metal plating baths employing borane or hypophosphite reducing agents and typically comprising monovalent anions or ne...
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WO/1994/012460A1 |
A process is disclosed for the production of a product which is enriched in a desired enantiomer of a phenylpropionic acid selected from ibuprofen and flurbiprofen, or their pharmaceutically acceptable salts, which comprises the followin...
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WO/1994/008684A1 |
The invention pertains to a process for extracting and buffering and/or concentrating dissolved macromolecules of a macromolecular mixture using a liquid chromatography apparatus, wherein buffer solutions that promote the separation proc...
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WO/1994/008683A1 |
A supercritical fluid extraction system (10) for extracting analytes from samples, comprising a holding means (14), and a moving means (15) which selectively moves extraction vessels (16) into an extraction chamber (18); the system (10) ...
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WO/1994/007814A1 |
Proposed is a process for separating enantiomers from a racemic mixture by countercurrent extraction using at least two liquids of mutually differing chiralities, said liquids being wholly miscible and separated from each other by a phas...
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WO/1994/004288A1 |
A process and apparatus for the remediation of soil is provided with a plug-flow of soil and counter-current wash of water. The contaminant-containing soil with water is first treated to disengage the contaminant from the soil and form a...
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WO/1994/004289A1 |
In order to decontaminate solid materials contaminated with organic pollutants, in particular soil contaminated with polycyclic aromatic hydrocarbons, the materials are mixed with a micro-emulsion, if required after being crushed and mec...
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WO/1994/001190A1 |
A process for recovering metal (17) and acid values (48) from a source material (22) containing metallic fluorides comprises digesting (10) the source material in sulfuric acid (20) to form a slurry, separating (12) a fluoride containing...
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WO/1994/000541A1 |
The present invention pertains to a method of obtaining oil from grain materials such as rice bran, wheat mill feed, CanolaR, rapeseed, amaranth, and similar grains. The method includes processes for: stabilizing the oil contained in the...
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WO/1993/025293A1 |
A reversed permeation membrane assembly and method for analyzing one or more compounds of interest from a sample solution. The membrane assembly includes a semi-permeable membrane (15) of predetermined thickness and length, and having in...
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WO/1993/023150A1 |
An indirect contact extraction method of the kind in which a solute is extracted from an aqueous feed solution into a receiver solution across a permselective membrane that is permeable to said solute and impermeable to the extraction re...
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WO/1993/022650A2 |
A device (1) for evaporating preferably liquid substances, in particular reagents, or for preparing or analyzing sampled materials inside a container (6), has a heater (2), preferably heated by micro-waves, and a holder (4) for at least ...
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WO/1993/022036A1 |
The invention concerns a process for reducing the alcohol content of an aqueous mixture comprising the steps of: (a) contacting one surface of a microporous hydrophobic membrane with the aqueous mixture; (b) contacting the other surface ...
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WO/1993/012674A1 |
Extraction, especially of firm fruit such as cranberries, with improved yields of high quality, low tannin juices by using an improved countercurrent extractor employing longitudinal members positioned between adjacent flights and reinfu...
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WO/1993/013035A1 |
An improved low temperature process of extracting oil from oil-bearing materials by extracting the oil-bearing material in an extraction zone with a normally gaseous solvent. As the resulting solvent/oil mixture is passed through the bed...
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