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)
05/1995
05/26/1995WO1995014086A1 Cartridge for preparing purified nucleic acids
05/24/1995EP0654547A1 Electrochemical refining of metals
05/24/1995CN1028492C Separating membrane and separation method
05/23/1995US5418061 Microporous polysulfone supports suitable for removal of low density lipoprotein-cholesterol
05/23/1995US5417847 Condenser; holding and concentrate tanks; controllers; separators
05/23/1995CA2136052A1 Process for the electrochemical dissolution of sulfur-containing and/or concentrated minerals by ion-exchange membranes and potential differences
05/18/1995DE4409997C1 Membrane for e.g. pervaporation having medial sepg. layer
05/17/1995EP0653511A1 Process for purification and recycle of solutions
05/17/1995EP0653239A1 Intelligent and all-bearing control circuit device of reserve osmosis drinking water machine
05/17/1995EP0652859A1 Improved process for separating and recovering halocarbons from mixtures thereof.
05/17/1995CN2197114Y Automatic controller for cleaning filtering material of water purifier
05/17/1995CN2197113Y Ultra-filtering water purifier
05/17/1995CN2197112Y Water tank of water purifier with infiltration
05/16/1995US5415781 Multicompartment filter membranes
05/16/1995US5415759 Bipolar
05/16/1995US5415751 Method of producing acids and alkalis
05/16/1995US5415744 Electroosmosis, positioning of electrodes
05/13/1995CA2134936A1 Intelligent and all-bearing control circuit device of reverse osmosis drinking water machine
05/11/1995WO1995012449A1 Method and apparatus for removing air locks within manually operated micro-filtration devices
05/11/1995DE4420760C1 Process and plant for reprocessing or concentration of used surfactant-containing iron phosphatising baths
05/11/1995DE4413640C1 Process for membrane filtration of waste water
05/11/1995DE4410763C1 Pervaporation membranes and use thereof
05/11/1995DE4409906C1 Composite membrane and process for the production thereof
05/10/1995EP0652203A1 Method and apparatus for recovering carboxylic acids from dilute solutions
05/10/1995EP0652201A1 Process for the production of concentrated aqueous formaldehyde solutions by pervaporation
05/10/1995EP0652044A1 Process for pyrifiying organic synthesis compounds
05/10/1995EP0652041A2 Method for producing high purity hydroxides and alkoxides
05/10/1995EP0651675A1 Centrifugal method for concentrating macromolecules from a solution and device for carrying out said method.
05/09/1995US5413682 Recovering ammonium fluoride from solution with ammonium hydroxide by electrolysis
05/04/1995WO1995011860A1 Method for separating metals and alcohols from an emulsified organic/aqueous effluent
05/04/1995WO1995011741A1 Process for preparing salt-containing solutions
05/04/1995WO1995011736A1 Method and apparatus for recovering water from a sewer main
05/04/1995DE4404681C1 System and method for reducing pollutants in combustion exhaust gases
05/04/1995CA2175197A1 Method for separating metals and alcohols from an emulsified organic/aqueous effluent
05/03/1995EP0650929A1 Electrolytic process and apparatus for the controlled oxidation or reduction of species in aqueous solutions
05/02/1995US5412005 Biodegradable polymeric compositions based on starch and thermoplastic polymers
05/02/1995US5411668 Process for the reclamation of used glycolic aircraft deicing compositions
05/02/1995US5411667 Method of selectively separating lead ions
05/02/1995US5411650 Recovering ions from pressurized stream; spiral
05/02/1995US5411641 Electrochemical conversion of anhydrous hydrogen halide to halogen gas using a cation-transporting membrane
05/02/1995CA2051898C Expandable and collapsible window covering
04/1995
04/28/1995CA2134278A1 Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions
04/26/1995CN2195375Y Equality phase ionic exchange diaphragm electric dialyzer
04/25/1995US5409613 Recycling and recovery of aqueous cleaner solutions and treatment of associated rinse water
04/25/1995US5409525 Hydrous gel membranes for gas separation
04/20/1995WO1995010349A1 Methods for reprocessing dialyzers
04/20/1995DE4340318C1 Method for regenerating a cleaning fluid and apparatus for the industrial cleaning of workpieces by means of a cleaning fluid
04/19/1995EP0648521A2 Gel extraction
04/19/1995EP0648147A1 Device for electroosmotically dewatering loaded materials, and related operating methods.
04/19/1995CN1101667A Method for fractionating a fat composition
04/18/1995US5407553 Turbulent flow electrodialysis cell
04/18/1995US5407547 Electrodialysis of a metal chlorate and acid solution
04/13/1995WO1995009989A1 Micromachined flow switches
04/13/1995WO1995009988A1 Micromachined filters and flow regulators
04/13/1995WO1995009987A1 Micromachined fluid flow regulators
04/13/1995WO1995009983A1 Pump with a number of distinct pumping stages for pumping several liquids
04/13/1995WO1995009935A1 Process for production of acidified process streams
04/13/1995WO1995009818A1 Method of wastewater treatment using a chemical precipitation-microfiltration-nanofiltration hybrid system
04/13/1995CA2108226A1 Liquid-liquid extraction using microporous hollow-fiber membrane
04/13/1995CA2108221A1 Purification of samples by interphase mass transfer using microporous hollow-fiber membranes
04/12/1995EP0647465A1 Microfiltration and/or ultrafiltration membrane, method of the preparation of such a membrane, and a method of the filtration of a liquid by means of such a membrane
04/11/1995US5405761 Method for the preparation of salts of L-ornithine
04/11/1995US5405532 Neutralization and biological purification; aftertreatment by nanofiltration and oxidation
04/11/1995US5405508 Method for regenerating tetraalkylammonium hydroxide
04/05/1995EP0646107A1 Method for the simultaneous preparation of dicarboxylic acids and diamines from polyamides
04/05/1995EP0646106A1 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers
04/05/1995EP0646042A1 Electrochemical method for the preparation of dicarboxylic acids
04/05/1995EP0646041A1 Integrated reverse osmosis and storage system
04/05/1995EP0563098B1 Multi-block polymer comprising an oxazolidone prepolymer chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
04/05/1995CA2133268A1 Membrane-based process for the recovery of lactic acid by fermentation of carbohydrate substrates containing fermentable sugars
04/04/1995US5403604 Adding portion of ultrafiltration retentate to nanofiltration high sugar retentate and low sugar permeate to form high and low brix/acid ratio fruit juice
04/04/1995US5403490 Concentration by passing a portion of solvent to semipermeable membrane and in which solute can be converted to precipitate form by increasing concentration of solute in solution; water treatment of rinsing solution of electroplating tanks
04/04/1995US5403489 Preventing pore-plugging; analyzing pesticdies, pollutants in rivers, waste water
04/04/1995US5403485 Dialysis membrane made of cellulose acetate
04/04/1995US5403480 Porous filter for liquid purification, and liquid purifying filter assembly and liquid purification plant employing the same
04/04/1995US5403455 Electrodes with subterranean portion for vibrating soil with different intensity and fequency simultaneously
03/1995
03/30/1995WO1995008581A1 Trifluorostyrene and substituted trifluorostyrene copolymeric compositions and ion-exchange membranes formed therefrom
03/30/1995WO1995008386A1 Process and device for filtering fluids by means of mf modules
03/30/1995WO1995008385A1 Device and method for dialyzing samples
03/29/1995EP0645176A1 Ion selective membrane spacer assembly
03/29/1995EP0645175A1 Spacer for dialysis, electrodialysis or electrolysis cells
03/29/1995EP0645174A1 Method for the removal of components causing turbidity, from a fluid, by means of microfiltration
03/29/1995EP0644928A1 Rectifying dialyzer, bioreactor and membrane
03/29/1995EP0644926A1 Process and composition for cleaning
03/29/1995EP0562102B1 Process for improving heat and mass transfer through a wall
03/29/1995CN1100616A Filter core containing iodine for mineral water pot
03/28/1995US5401891 Selective cracking of low purity dicyclopentadiene to monomeric cyclopentadiene, distillation, selective dimerization and purification via membrane pervaporation
03/28/1995US5401422 Separation method for solid constituents of a suspension and device for carrying out this method
03/28/1995US5401421 Energy efficient water purification system
03/28/1995US5401414 Process for recovering a fluid dissolved in a rinsing bath
03/28/1995US5401395 Valve arrangement for a pressurized water purifier
03/28/1995US5401375 Electro-endosmosis type dehydrator
03/28/1995CA1334938C Method for processing oil emulsions or microemulsions in polluted waters
03/28/1995CA1334913C Fluid treatment system having low affinity for porteinaceous materials
03/23/1995WO1995007915A1 Process for the preparation of alkylglycosides
03/23/1995WO1995007752A1 Electrodialytic conversion of complexes and salts of metal cations
03/22/1995EP0644160A2 Method for inhibiting scale formation and/or dispersing iron in reverse osmosis systems
03/22/1995EP0643677A1 Process for producing and processing wash water in a washing installation, and washing installation.
03/22/1995EP0643616A1 Micromechanical filter and method for the manufacture thereof
03/22/1995EP0643615A1 Conditioning process and device for producing pure water.