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)
03/1992
03/24/1992US5098538 Electroacoustic soil decontamination
03/18/1992CN1059569A Electrochemical processing of aqueous solutions
03/17/1992US5096637 Polyvinylidene fluoride membrane
03/17/1992US5096592 Multi-block polymer comprising an ester prepolymer, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations
03/17/1992US5096590 Multistage; fruit juices
03/17/1992US5096583 Membrane filters for the ultra or micro filtration of liquids, especially water
03/17/1992US5096574 Reverse osmosis system
03/17/1992US5096547 Preparation of chromic acid using bipolar membranes
03/13/1992WO1992004107A1 Membrane module
03/13/1992CA2090855A1 Membrane module
03/11/1992EP0474370A1 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same
03/11/1992EP0474365A1 Filter cleaning
03/11/1992EP0474182A2 Method for the purification of a bifidobacteria-proliferating substance
03/11/1992EP0473744A1 Process for selective removal of volatile substances from liquids
03/10/1992US5094743 Fluid purifying apparatus and method of purifying fluids
03/10/1992US5094732 Process and apparatus for removing nitrates from a water stream during the treatment of process water
03/10/1992US5094595 Labrador water-wave energy converter
03/10/1992CA1297095C Heat exchanger
03/10/1992CA1296976C Blood serum test strip
03/05/1992WO1992003389A1 Process for producing biscuit-fired ceramic and process for producing eco-environmental water
03/05/1992WO1992003216A1 Device for membrane separation
03/05/1992WO1992003202A2 Medical drug formulation and delivery system
03/05/1992CA2092201A1 Medical drug formulation and delivery system
03/04/1992EP0473541A2 Process for enrichment or separation, copolyamide and copolyimidamide and their use
03/04/1992EP0473486A1 Process for controlling the operation modes of an automatic water filtration apparatus having tubular membranes
03/04/1992EP0473290A2 Multilayer reverse osmosis membrane of polyamide-urea
03/04/1992EP0472794A1 Liquid membrane process for separating gases
03/03/1992US5093006 Liquid separator
03/03/1992US5093002 Crosslinked Polysiloxane Elastomeric Membrane
03/03/1992US5092999 Filtering means
03/03/1992US5092997 Apparatus for concentration of macromolecular solutions
03/03/1992US5092990 Filter device
03/03/1992US5092974 Electrode and method for compressive and electro-osmotic dehydration
02/1992
02/26/1992EP0472264A2 Spiral filtration module with improved cleanability and operating efficiency
02/26/1992EP0472117A1 Process for the preparation of potassium magnesium L-ascorbate-2-phosphate
02/25/1992US5091093 Process for purifying acrylonitrile effluent
02/25/1992US5091085 Portable
02/25/1992US5091081 Ultrafiltration
02/25/1992US5091080 Core enclosed by semipermeable membrane
02/25/1992US5091071 Coating electroconductive substrate with cationic polymer; ultrafiltration
02/25/1992US5091070 Electrodialysis in cell with alternating bipolar and ion exchange membranes
02/25/1992CA1296283C Process for hydrotreatment of liquid phase heavy hydrocarbons, with the presence of a dispersed catalyst
02/21/1992CA2042699A1 Spiral filtration module with improved cleanability and operating efficiency
02/18/1992US5089102 Removal of salts by electrodialysis
02/18/1992CA2049266A1 Concentration or separation method, copolyamides and copolyimids-amides and the use thereof
02/18/1992CA1295963C Continuous process for the fermentative preparation of organic acids
02/18/1992CA1295795C Asymetrically-wettable, porous membrane and membrane process
02/17/1992CA2023386A1 Reverse osmosis membrane filter module
02/12/1992EP0470931A2 Soil and waste water treatment
02/12/1992EP0470704A1 Process for dehydration of organic oxygenates
02/12/1992EP0470699A1 Membrane process for dewatering lube oil dewaxing solents
02/12/1992CN2095709U Microporous filter
02/12/1992CN1015421B Equipment for recovering and concentrating oil in water
02/11/1992US5087449 Method for the preparation of a substance capable of proliferating bifidobacteria growth and the substance
02/11/1992US5087372 Filtration through membrane having iminodiacetic acid groups bound to resin matrix side chains
02/11/1992US5087371 Method for regenerating scale solvent
02/11/1992US5087370 Method and apparatus to detoxify aqueous based hazardous waste
02/07/1992CA2044814A1 Process for dehydration of organic oxygenates
02/07/1992CA2042913A1 Membrane process for dewatering lube oil dewaxing solvents
02/05/1992EP0470015A1 Process for cleaning in crossflow microfiltration
02/05/1992EP0470001A1 Process and apparatus for electrokinetic dewatering
02/05/1992EP0469487A1 Apparatus for dissolving an adjusting agent of a dialytic solution
02/05/1992EP0469352A1 Process for the isolation and purification of monosialoganglioside from a starting lipidic mixture by complexation with alpha-cyclodextrin and related intermediate compound
02/05/1992EP0469206A1 Hypoallergenic milk products and process of making
02/04/1992US5085881 Solvent extraction with carboxylic acids and/or esters
02/04/1992US5085778 Process for dehydration of organic oxygenates
01/1992
01/29/1992EP0468904A1 Method for making impervious pieces of carbon composite material
01/28/1992US5084220 Membrane filtration apparatus and method of making a membrane filtration unit
01/28/1992US5084183 Fractionation of light/heavy waxes by use of porous membranes
01/28/1992US5084181 Enrichment of water in components of heavy water
01/28/1992US5084180 Method for treating zinc-containing sulfate solution
01/28/1992US5083442 Refrigerator with purified water supply
01/28/1992CA1294758C System for the extraction and utilization of oxygen and other ligands from fluids
01/28/1992CA1294745C Asymmetrical microporous hollow fiber for hemodialysis and a process for manufacturing such fibers
01/22/1992EP0467831A2 Process and apparatus for purification of water and for keeping it clean
01/22/1992EP0467735A1 Pyrogen separations by ceramic ultrafiltration
01/22/1992EP0467525A1 Process for treating a mixture containing dewaxed oil and dewaxing solvent
01/22/1992EP0466775A1 Method to control a salt stream to be treated in an electrodialytic water splitter.
01/21/1992US5082602 Process and apparatus for regenerating spent reprocessing extraction solvent
01/21/1992US5082565 Semipermeable membrane made from polyether ketones
01/21/1992US5082564 Method and means for desalination of seawater and brackish water
01/21/1992US5082557 Control head for water purifier
01/21/1992US5082549 Membrane stack unit for multichamber processes
01/21/1992US5082472 Composite membrane for facilitated transport processes
01/17/1992CA2042921A1 Process for treating a mixture containing dewaxed oil and dewaxing solvent
01/15/1992EP0466470A2 Aromatics/saturates separation using membranes
01/15/1992EP0466469A2 Aromatics/saturates separation using membranes
01/15/1992EP0465968A1 Process for the treatment of acrylonitrile waste water
01/15/1992EP0465822A1 Recovery of sodium hydroxide and aluminium hydroxide from etching waste
01/15/1992EP0465482A1 Method and apparatus for controlling the relative humidity in concrete and masonry structures.
01/15/1992EP0333753B1 Arrangement in membrane filter
01/14/1992US5080796 Thermofiltration of plasma
01/14/1992US5080795 Supported chiral liquid membrane for the separation of enantiomers
01/14/1992US5080794 Separation of 1-methoxy-2-propanol and water
01/14/1992US5080770 Apparatus and method for separating particles
01/12/1992CA2045161A1 Sulfonated polysulfone membranes for aromatics/saturates separation
01/12/1992CA2044000A1 Polysulfone membranes for aromatics/saturates separation
01/11/1992WO1992000769A1 Adaptive filter flow control system and method
01/09/1992DE4020840A1 Gas removal from fluid using heat-exchanging dialysis filter - is cheap to operate and efficiency allows preheating and cooling of incoming and outgoing gases respectively
01/08/1992EP0464506A1 Process and apparatus to clarify liquids