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WO/2002/045855A1 |
A method by which a modified cation-exchange resin in which part of the sulfo groups have been modified with an aminothiol compound and which is used as a catalyst for bisphenol production is inhibited from decreasing in the degree of mo...
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WO/2002/046106A1 |
The invention relates to a device for the precipitation of lime from water in dishwashers. Known such devices use chemical substances which often load the waste water with pollutants. The aim of the invention is to provide an effective d...
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WO/2002/042307A1 |
The invention relates to a system for extracting toxins from biological tissues. The system comprises a lixiviator, an ion-exchange column, a diatomaceous silica-active carbon column, and a vacuum concentrator. Twenty to one hundred kilo...
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WO/2002/040405A2 |
Method for the treatment of a nickel-containing waste water, comprising a phosphate bath overflow and/or the rinsing water after phosphating, whereby the phosphating is carried out with an acidic aqueous phosphate solution, containing 3 ...
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WO/2002/036490A1 |
The present invention provides a dye loaded zeolite material comprising: a) at least one zeolite crystal having straight through uniform channels each having a channel axis parallel to, and a channel width transverse to, a c-axis of crys...
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WO/2002/034675A1 |
In one embodiment the present invention is a process for recovering an onium hydroxide from a cation exchange material having onium cations adsorbed thereto which comprises (A) contacting said cation exchange material with an aqueous sol...
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WO/2002/031000A1 |
The invention relates to a method for producing stable cation exchangers in the form of a gel by sulfonating acrylnitril-containing bead polymerizates. The invention further relates to the cation exchangers in the form of a gel as such a...
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WO/2002/028526A1 |
Disclosed is an ion exchange illite having the following formula: (Al¿1.875?Fe¿0.055?Mg¿0.018?) (Al¿0.55?Si¿3.45?)O¿10?(OH)¿2?(Na¿0.0446-X? $g(D)$g(g)K¿0.61-Z?).nH¿2?O wherein $g(D) is Ag; X is 0.0001 to 0.0446; Y is 0.0001 to ...
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WO/2002/028775A1 |
The present invention provides a macroporous foam comprising microporous zeolite or the related microporous molecular sieves and preparation thereof, which comprises dipping an amino group-releasable polymeric template having a sponge or...
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WO/2002/029077A2 |
A method of preparing a modified corn steep liquor product from a corn steep liquor which includes suspended solids, high molecular weight compounds, phytic acid, and metal values includes the steps of: subjecting the corn steep liquor t...
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WO/2002/028196A2 |
A modified corn steep liquor product is substantially free of inorganic salts; contains from 7.5% by weight on a dry basis of myo-inositol; and contains from 60% by weight on a dry basis of proteins.
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WO/2002/028529A2 |
Ion exchange resins composed of a polymeric matrix functionalized with a piperazine group are suitable for separating gold cyanide from aqueous medium containing gold cyanide complex and other metal cyanide complexes in a process wherein...
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WO/2002/027039A1 |
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/2002/027038A1 |
The invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly...
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WO/2002/027037A1 |
The invention relates to a method comprising a multistep process for recovering betaine, erythritol, inositol, sucrose, mannitol, glycerol and amino acids from corresponding starting materials. The invention comprises the use of a weakly...
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WO/2002/026344A1 |
A method and apparatus are provided for treating produced water to lower the total dissolved solids of the water for safe discharge to the environment. The produced water is passed through a weak acid cation resin in H+ form (11) to remo...
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WO/2002/024335A2 |
A strong-acid cation exchange resin in acid form is contacted with an alkylcarbamoyl alkylthioester in the presence of water for producing a strong-acid cation exchange resin comprising a plurality of acid groups being partially neutrali...
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WO/2002/020470A1 |
The invention aims at providing processes for the production of amino acid derivatives of the general formula (I) and t-butoxycarbonylaminoethylamine being an intermediate for the production of the derivatives (I), which can attain high ...
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WO/2002/018464A2 |
Separation of a variety of analytes that are polar, nonpolar and ionic using functionalized polymeric media is disclosed. Preformed rigid particles of highly crosslinked homopolymer of polyvinylidene compounds are functionalized using th...
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WO/2002/018276A1 |
A method and apparatus for treating wastewater effluent. The apparatus comprises a first anoxic zone (18) including heterotrophic bacteria, a carbon source (20), and an outlet structure (24) with a limestone aggregate. A second zone (28)...
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WO/2002/018029A1 |
A method and apparatus are described for removing iron cations and/or zinc cations from an autodeposition coating bath (T1) by passing a limited number of bed volumes through a column (IEX) containing a gel type SAC IEX resin when iron c...
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WO/2002/016928A1 |
A method, device, and kit for chemical species separation, such as of arsenic compounds, are provided. Using the kit in the field, a sample is provided, part of which is preserved for total chemical species analysis. The remainder of the...
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WO/2002/005959A2 |
The invention relates to a method for removing a positively charged substance from an aqueous liquid (I) by contacting the liquid with a cation-exchanger (1), possibly followed by a subsequent desorption of said substance. The cation-exc...
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WO/2002/004086A1 |
A process for removing toxins from fluids such as blood or a dialysate solution, is disclosed. The process involves contacting the fluid with a microporous ion exchanger to remove toxins in the fluid. The microporous ion exchangers are r...
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WO/2002/000325A2 |
A filter sheet is provided which comprises a self-supporting fibrous matrix having immobilized therein particulate filter aid and particulate ion exchange resin, wherein said particulate filter aid and particulate ion exchange resin are ...
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WO/2001/097973A1 |
Ion exchange resin composite fibers include a substrate fiber, and an ion exchange resin, on the substrate fiber. The ion exchange resin composite fibers exhibit greatly increased kinetic rates of reaction and regeneration.
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WO/2001/098548A2 |
The invention relates to a chromatographic method for interseparating platinum group metals from a feed solution, wherein the feed solution is oxidated prior to the chromatographic separation to reach a redox-potential of at least 900 mV...
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WO/2001/098224A1 |
A composite, contains substrate fibers, and carbon ion exchanger, on the substrate fibers. The fiber provides a support to the carbon ion exchanger, resulting in excellent mechanical properties, compared to carbon fiber ion exchangers.
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WO/2001/096511A2 |
Materials for coating, coating compositions, methods and articles of manufacture comprising a nanoparticle system or employing the same to impart surface modifying benefits for all types of inanimate hard surfaces are disclosed. In some ...
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WO/2001/094014A1 |
A fixed bed is prepared by packing a reactor with an acid cation-exchange resin to form a fixed bed and contacting the resultant fixed bed with an aqueous solution containing, dissolved therein, an acid, a nitrogenous sulfur compound, an...
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WO/2001/088016A1 |
The invention relates to a method for separating alkali metal ions from alkali metal ion-containing alkoxylates. The method comprises the following steps: a) diluting the alkali metal ion-containing alkoxylate with an inert solvent, b) t...
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WO/2001/085808A1 |
The invention relates to polymers based on polystyrenesulphonic acids, stabilised by means of transition metal ions, the use thereof as cationic ion exchangers and cationic ion exchangers made from the above polymer.
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WO/2001/085620A1 |
The invention relates to a method and a device for reducing scale formation and/or corrosion in systems which conduct liquids or are in contact with liquids. According to the invention, this is achieved without reducing the quantity of h...
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WO/2001/083377A1 |
A skin-care liquid preparing unit capable of simply preparing a skin-care liquid consisting of a stable weak-acid soft water with a pH useful for skin wetness retaining and skin caring, the unit comprising a body container (2) storing a ...
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WO2000050160A9 |
The present invention provides, in certain embodiments, a negatively charged microporous membrane comprising a porous substrate and a crosslinked coating having fixed negative charges. The crosslinked coating can be prepared, e.g., from ...
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WO/2001/074489A1 |
A method for preparing an acidic cation exchange resin fixed bed for producing bisphenols, wherein an acidic cation exchange resin is partially neutralized homogeneously with a nitrogen-containing sulfur compound, characterized in that i...
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WO/2001/074488A1 |
A method for preparing an acidic cation exchange resin fixed bed for producing bisphenols, wherein an acidic cation exchange resin is partially neutralized homogeneously with a nitrogen-containing sulfur compound, characterized in that i...
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WO/2001/074420A1 |
Adsorbents for high mobility group proteins (HMG proteins) whereby HMG proteins in a body fluid can be eliminated. These adsorbents are composed of a water-insoluble support on which a substance having a functional group capable of formi...
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WO/2001/073414A2 |
A method of measuring the concentration of water in an ion exchange membrane cmprising: (i) measuring the absorbance of electromagnetic radiation transmitted through the membrane, said electromagnetic radiation comprising at least one fr...
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WO/2001/072422A2 |
A method of removing organic iodides from non-aqueous organic media includes contacting the organic media with a silver or mercury-exchanged cationic ion exchange substrate at a temperature greater than about 50 �C. The method is parti...
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WO/2001/068240A2 |
The present invention relates in general to the preparation and use of matrices having solid spaces, interstitial spaces and interstitial polymer networks. In particular, the interstitial polymer networks have utility in chemical and bio...
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WO/2001/057049A1 |
The invention relates to an efficient method and a device for decontaminating water that is contaminated with heavy metals, semimetals and/or radionuclides by cation exchange and electrochemical separation of the anions.
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WO/2001/049389A1 |
The present invention provides a method for selectively removing metal ions of interest from a solution (12), such as the wastewater from a chemical mechanical polishing process. The method comprises contacting a solution (12) containing...
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WO/2001/049602A1 |
The invention concerns a method for purifying an aqueous hydrogen peroxide solution by passing the solution on a cationic resin. The method consists in passing the solution on the cationic resin in conditions wherein said hydrogen peroxi...
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WO/2001/046087A2 |
The invention relates to a fertilizer that is characterized by at least one biodegradable and/or soil-compatible parent substance that carries groups that are capable of exchanging or scavenging ions, and/or structures to which ions are ...
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WO/2001/041927A1 |
A method of preventing the growth of heterotrophic bacteria and the subsequent establishment of a biofilm on the surface and in the micropores of an antimicrobial synthetic ion exchange resin. An antimicrobial synthetic ion exchange resi...
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WO/2001/036338A1 |
The present disclosure discloses a process and apparatus to accomplish same for complete solubilization, sterilization, radioactivity filtration, and destruction of clothing, supplies, equipment, and other articles made of polyvinyl alco...
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WO/2001/030496A1 |
Multicomponent ion exchange resin granules containing at least one acidic resin and at least one basic resin. Each granule contains at least one microdomain of the acidic resin in contact with, or in close proximity to, at least one micr...
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WO/2001/030495A1 |
Ion exchange resin granules containing a crosslinked polymerized $g(a),$g(b)-unsaturated acid, like acrylic acid, or a vinyl monomer containing an amino group, like polyvinylamine, and methods of manufacturing the resin, are disclosed.
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WO/2001/029104A1 |
A heavy-metal ion remover superior in removing ability to conventional ones. The organic polymeric material is characterized by comprising an organic polymer backbone and, bonded thereto, polymer side chains which are derived from a halo...
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