Patents
Patents for B01D 61 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor (28,150)
01/2002
01/17/2002WO2001021310A3 Device for rapid dna sample processing with integrated liquid handling, thermocycling, and purification
01/17/2002US20020005385 Water treatment systems and methods
01/17/2002US20020005356 Bipolar membrane electrodialysis of multivalent metal salts whose corresponding base is insoluble
01/17/2002DE10032442A1 Reverse osmosis unit supplying dialysis stations with high purity water automatically corrects excessive pressure differential between ends of ring main
01/17/2002CA2383962A1 Multi-stage filtration and softening module and reduced scaling operation
01/16/2002EP1172335A1 Process for cleaning candle filters and membrane systems
01/16/2002EP1172145A2 Electrodeionization apparatus and method of operating the same
01/16/2002EP1171389A1 Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation
01/16/2002EP1171226A1 Porous membrane
01/16/2002EP1159049A4 Responsive gels and methods of use thereof
01/16/2002EP0739423B1 Mesoscale polynucleotide amplification devices
01/16/2002CN1331557A Pervaporation device and irrigation mat
01/15/2002US6338803 Containg also nitric acid and dissolved silica, adjusting the ph of said waste water to about 7 or above; passing waste water through reverse osmosis membrane
01/15/2002US6338802 Multi-well microfiltration apparatus
01/15/2002US6338784 Apparatus for producing deionized water
01/15/2002CA2215549C Demineralization of milk products and derivatives
01/10/2002WO2002002215A2 Surface coating on a liquid/solid contact surface for controlling electrical osmosis
01/10/2002WO2002002214A1 Filter or filter-element for modified electro-dialysis (med) purposes
01/10/2002WO2002002213A1 Separation method
01/10/2002WO2002002212A1 Method and apparatus for treatment of waste water from cationic electrodeposition coating process
01/10/2002WO2002002211A1 Water separation from solvent
01/10/2002DE10120608A1 Process for filtering liquid comprises recycling filtrate into feed tank which is emptied when concentration reaches value suitable for further filtration, with short concentration phases in which filtrate is fed into collecting tank
01/10/2002DE10040086C1 Process for removing carbon dioxide from a water-fuel mixture present in a fuel cell comprises using a separating device operating according to the principle of a fuel cell
01/10/2002DE10031281A1 Polyelektrolytbeschichteter, stoffdurchlässiger Verbundwerkstoff, Verfahren zu dessen Herstellung und die Verwendung des Verbundwerkstoffes Polyelektrolytbeschichteter, permeable composite material, method for its preparation and the use of the composite material
01/10/2002DE10030984A1 Purification of waste water to produce drinking water comprises aerobic microbiological treatment, removing material which has not been broken down, followed by biological post-treatment and filtering
01/09/2002EP1170053A1 Running method and treatment system for spiral wound membrane element and spiral wound membrane module
01/09/2002EP1170052A1 System for withdrawing permeate from a multicomponent liquid substrate
01/09/2002EP1170051A2 Liquid filtering apparatus
01/09/2002EP1169430A1 Respiratory aids
01/09/2002EP1169112A1 Electrodeionization apparatus and method
01/09/2002CN1330566A Polymer composition, membrane containing said composition, method for the production and use thereof
01/09/2002CN1330058A Method and device for preparing aldehyde acetal and ketal
01/09/2002CN1330036A Method for producing purified aqueous hydrogen peroxide solution
01/09/2002CN1330035A Method for producing purified aqueous hydrogen peroxide solution
01/09/2002CN1077448C Plate-frame membrane assembly of osmotic vaporization process
01/07/2002CA2313740A1 Multi-stage filtration and softening module and reduced scaling operation
01/03/2002WO2002000773A2 Polymers and polymer membranes covalently cross-linked by sulphinate alkylation
01/03/2002WO2002000551A2 A process and apparatus for brine purification
01/03/2002WO2002000331A2 Enhancing filtration yields in tangential flow filtration
01/03/2002US20020001836 Method of plasmid recovery and apparatus for doing so
01/03/2002US20020000386 Removal of biological contaminants
01/03/2002US20020000191 Recycling system of aqueous paint
01/03/2002CA2379962A1 Polymers and polymer membranes covalently cross-linked by sulphinate alkylation
01/02/2002EP1167333A2 Process and manufacturing equipment for preparing acetals and ketals
01/02/2002EP1167302A1 Process for biological and/or physical elimination of undesired substances from water
01/02/2002EP1167289A2 Process for producing a purified aqueous hydrogen peroxide solution
01/02/2002EP1167288A2 Process for producing a purified aqueous hydrogen peroxide solution
01/02/2002EP1166860A2 Polyelectrolyte-coated permeable composite material, method for producing the same and its use
01/02/2002EP1166382A1 Production of tubular fuel cells, fuel cell modules, base elements and ion exchanger membranes
01/02/2002EP1165728A1 Method for treating an oil using a liquid in a supercritical state
01/02/2002EP1165261A1 Semiconductor wafer treatment
01/02/2002EP1165214A1 Non-thrombogenic semipermeable membrane and method for making same
01/02/2002EP1165212A1 Method and device of separating substance mixtures in liquid and/or vapour form by pervaporation and/or vapour permeation
01/02/2002EP1165207A1 High crystalline polypropylene microporous membrane, multi-component microporous membrane and methods for preparing the same
01/02/2002CN2468570Y Water purifier of drinking water machine
01/02/2002CN1329578A Method and compositions for minimizing biological and colloidal fouling
01/02/2002CN1329515A Purifying device for liquid
01/02/2002CN1328867A Reverse osmose desalination microfiltration membrane pretreatment method
01/02/2002CN1328866A Mass transferring method and device
01/02/2002CN1077151C Method for producing basic drying halogen gas and electrochemical tank
01/01/2002US6334955 Fresh water generator and fresh water generating method
01/01/2002US6334951 Reverse osmosis water treatment system with tube connecting unit
01/01/2002US6334944 Process for producing an amino acid-N,N-diacetic acid and its salts
01/01/2002US6334941 Ion exchanger in demineralizing compartments of electrodialyzer having cation exchange membranes and anion exchange membranes alternately arranged between anode and cathode; requires no regeneration
01/01/2002CA2085472C Radon removal system
01/01/2002CA2060256C Process for the manufacture of thin film composite membranes
12/2001
12/27/2001WO2000067906A9 Apparatus and method of recirculating electrodeionisation
12/27/2001US20010054584 Ultrafilteration device and method of forming same
12/27/2001CA2351747A1 Polyelectrolyte coated permeable composite material, its preparation and use
12/26/2001CN1328488A Method and apparatus for electrodeionization of water using mixed bed and single phase ion exchange materials in diluting compartments
12/26/2001CN1328484A Membranes containing sulphonated polyetherketone and another polymer, method for production and use thereof
12/26/2001CN1328482A Process for recovery of iodine from aqueous solutions containing iodinated organic compounds
12/26/2001CN1076629C Dewatering process
12/26/2001CA2351124A1 Process and manufacturing equipment for preparing acetals and ketals
12/25/2001US6332964 Multi-phase solid ion and electron conducting membrane with low volume percentage electron conducting phase and methods for fabricating
12/25/2001CA2250801C Method for separating a catalyst by membrane electrodialysis
12/20/2001WO2001096001A1 Filter cartridge for microfiltration and method for manufacture thereof
12/20/2001US20010052494 Chemical cleaning backwash for normally immersed membranes
12/20/2001US20010052491 Membrane filtration system
12/20/2001US20010052462 Small separation apparatus
12/19/2001EP1164109A1 Apparatus for production of potable water
12/19/2001EP1163045A1 Positively charged membrane
12/19/2001EP1163044A1 Negatively charged membrane
12/19/2001EP1071635B1 Method for purifying alkali metal silicate solutions
12/18/2001US6332110 Method for monitoring advanced separation and/or ion exchange processes
12/18/2001US6331272 Method and membrane system for sterilizing and preserving liquids using carbon dioxide
12/18/2001US6331256 Treatment process for fluorine-containing water
12/18/2001US6331253 In which a third substance is dissolved in a supercritical state to lower the viscosity; heat sensitive organic liquids and used motor oils.
12/18/2001US6331252 Methods for priming a blood compartment of a hemodialyzer
12/18/2001US6331251 System and method for withdrawing permeate through a filter and for cleaning the filter in situ
12/18/2001US6331236 Electrodialysis of salts for producing acids and bases
12/18/2001CA2134478C Microfabricated detection structures
12/13/2001WO2001094574A2 Method and apparatus for purifying nucleic acids
12/13/2001WO2001094527A2 Preparing a sample to be analysed from a sample with very large volume
12/13/2001WO2001094510A1 Recyclable cleaning compositions
12/13/2001WO2001094284A2 Process for producing ultra-high purity isopropanol
12/13/2001WO2001093992A1 Method for controlling permeability by high frequency wave and method for producing organic membrane for separation
12/13/2001WO2001093991A1 Water filtering device
12/13/2001WO2001093979A1 Multi-well equilibrium dialysis systems
12/13/2001CA2411861A1 Water filtering device