Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 61 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
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)
11/1990
11/13/1990CA1276359C Semi-permeable membrane of sulphonated polyarylether sulphones
11/12/1990CA2016582A1 Prevention of biofouling of reverse osmosis membranes
11/08/1990DE3914940A1 Reverse osmosis purifies part of water supply for drinking - while remaining flow is used for less demanding domestic needs
11/08/1990CA2016184A1 Process for the removal of no and so from gas streams using a water-soluble, polymeric chelate of a polyvalent metal and membrane separation means
11/08/1990CA2016176A1 Portable water purification system
11/07/1990EP0396390A1 Method for processing organic waste and apparatus therefor
11/07/1990EP0396258A2 Apparatus and method for predetermining maximum pressure differentials for microporous hollow fibres employed in liquid liquid extractions
11/07/1990EP0396042A2 The use of chitosan to improve membrane filter performance
11/06/1990US4968733 Dissolving polymer in caprolactam as primary solvent
11/06/1990US4968429 Anti-clogging method for maximal flux and prolonged filtration time
11/03/1990CA2015962A1 Method for processing organic waste and apparatus therefor
10/1990
10/31/1990EP0394858A1 Process and apparatus for the separation of nitrates from a water current in waste water treatment
10/31/1990EP0394777A2 Washing device for vehicles
10/31/1990EP0394532A1 Filtration process and apparatus for liquid media
10/31/1990EP0394265A1 Method for size separation of particles.
10/30/1990US4966997 Metal extractants, microorganism growth promoter
10/30/1990US4966758 For analyzing antibodies and antigens; vacuum drawing liquid through filter
10/30/1990US4966709 Thermofiltration of plasma
10/30/1990US4966708 Controlling reverse osmosis water purification system
10/30/1990US4966707 Liquid/liquid extractions with microporous membranes
10/30/1990US4966693 Apparatus for processing coolant
10/24/1990EP0394193A2 Coated membranes
10/24/1990EP0393843A2 Hybrid membrane separation systems
10/24/1990CN2064262U Combined sheet type ultrafilter division plate without sealing washer
10/23/1990US4964998 Use of treated composite polyamide membranes to separate concentrated solute
10/23/1990US4964976 For separation of blood
10/23/1990US4964970 Compact low volume water purification apparatus
10/21/1990CA2011902A1 Hybrid membrane separation systems
10/20/1990WO1990012637A2 Electrodialytic water splitting process for the treatment of aqueous electrolytes
10/17/1990EP0392982A2 Solvent stable membranes
10/17/1990EP0392875A1 Method for separating dissolved species by electrodialysis
10/17/1990EP0392726A2 Filter device
10/17/1990EP0392705A1 Electrodeposition coating system
10/17/1990EP0392395A1 Use of a microporous membrane composed of a polymer substrate and a surface coating of the substrate by a polyacrylic acid- or -methacrylic acid derivative for the filtration of beer
10/16/1990US4963303 Dissolving polyimide in solvent; adding pore forming agent; casting thin layer; quenching
10/16/1990US4963264 Process for selective dialysis using polymeric affinity adsorbents and size selective membranes
10/16/1990US4963256 Fluid tight seal between membrane and two hollow members
10/16/1990US4963253 Anti-clogging and dialysis device for filtration systems
10/16/1990CA1275262C Filters
10/16/1990CA1275261C Process and device for filtering out particles suspended in a liquid
10/10/1990EP0391699A1 Pervaporation method of selectively separating water from an organic material aqueous solution through aromatic imide polymer asymmetric membrane
10/10/1990EP0391590A1 Method for processing aqueous fermentation broths
10/10/1990EP0391521A2 A device having a porous polytetrafluoroethylene tube secured in an apertured wall, and the manufacture thereof
10/10/1990CA2014195A1 Electrodeposition coating system
10/09/1990US4962271 Permselective membranes
10/09/1990US4962270 Multi-stage pervaporation process run at progressively higher vacuum, higher temperature or both at each successive retentate stage
10/09/1990US4961909 Process for the manufacture of copper arsenate
10/09/1990US4961855 Dehydration of organic oxygenates
10/09/1990US4961758 Feed stream and liquid membrane maintained at temperature and pressure near dew point
10/07/1990WO1990011819A1 Method and apparatus to control a salt stream to be treated in an electrodialytic water splitter
10/07/1990CA2051664A1 Method and apparatus to control a salt stream to be treated in an electrodialytic water splitter
10/05/1990CA2013203A1 Systems and methods for predetermining maximum pressure differentials for microporous hollow fibers employed in liquid-liquid extractions
10/04/1990WO1990011119A2 Membrane separation of ammonium acetate and ammonium hydroxide
10/03/1990CN2063047U Mini-filter for medicine liquid
10/03/1990CN1045770A Concentrated ammonium acetate and ammonium hydroxide separation system by thin film distillation
10/02/1990US4960521 Process for performing a dialysis operation using a magnetic weighted clamp
10/02/1990US4960520 Method of removing organic volatile and semi-volatile contaminants from an aqueous solution
10/02/1990US4960519 Membrane process for separation of organic liquids
09/1990
09/26/1990EP0388628A2 Process for the separation of particles from fermentable or fermented suspensions of beverage production
09/26/1990EP0388546A1 Device and method for filtering a colloidal suspension
09/25/1990US4959237 Reverse osmosis concentration of juice products with improved flavor
09/25/1990US4959151 Pervaporation method of separating liquid organic compound mixture through aromatic imide polymer asymmetric membrane
09/25/1990US4959150 Filter with hydroxyacrylic ester coating
09/20/1990WO1990010767A1 Method and apparatus for controlling the relative humidity in concrete and masonry structures
09/19/1990EP0387270A1 Transfer membrane apparatus.
09/16/1990WO1990010733A1 Process for generating chloric acid and chlorine dioxide
09/16/1990CA2020278A1 Process for generaating chloric acid and chlorine dioxide
09/12/1990CN1045232A Filter cleaning
09/11/1990US4956093 Water treatment, active carbon, circulation, loops
09/11/1990US4956071 Electrodeionization apparatus and module
09/11/1990US4955987 Fiber-reactive dyes from cyanuric chloride and azo dyes in the presence of lithium hydroxide, storage stabiity, membrane separation
09/07/1990WO1990010211A1 Process and device for filtering liquid or gas samples laden with particles to be analyzed
09/06/1990DE3906791A1 Method of reprocessing waste pickling liquors containing metal, nitric acid and hydrofluoric acid
09/05/1990EP0385613A1 Ammonia removal from mammalian cell cultures
09/05/1990EP0385119A2 Mixture components separation and recovery process through evaporation
09/04/1990US4954262 Diffusion dialysis
09/04/1990US4954145 Alcohol or polyether, alkali metal salt, amine or hydroxylamine
09/04/1990US4953694 Distilling apparatus
08/1990
08/29/1990EP0384081A2 Compressive and electroosmotic dehydrator
08/29/1990EP0384016A1 Process and apparatus for separating components from a fluid mixture
08/29/1990EP0185756B1 Extrusion techniques for producing liposomes
08/29/1990CN1009335B Bipolar membranes and methods of making same
08/28/1990US4952751 Using permselective memebrane; controlling vapor pressure
08/28/1990US4952319 Process for separating liquid mixture
08/28/1990US4952318 Separations of oxygenates
08/28/1990US4952317 Device and method for filtering a colloidal suspension
08/28/1990US4952289 Macrocyclic amine complexes for ligand extraction and generation
08/24/1990CA2009761A1 Ammonia removal from mammalian cell cultures
08/23/1990DE3904981A1 Process and apparatus for decreasing the pollutant content of drinking water
08/22/1990EP0383521A1 Method of making ultrafiltration polyimide membrane and its use for recovery of dewaxing aid
08/22/1990CN2060689U Sheet press-frame type filter
08/22/1990CN1044830A Production of chloric acid
08/21/1990CA1272982A1 Method for the recovery of lithium from solutions by electrodialysis
08/21/1990CA1272860A1 Carbonate selective membrane and electrode
08/16/1990EP0382440A1 Cation exchange membranes
08/16/1990EP0382439A1 Anion exchange membranes
08/16/1990EP0382356A2 Membranes
08/16/1990EP0382202A2 Method and device for the removal of components to be separated from a fluid
08/16/1990EP0381874A1 Method and apparatus for water decontamination
08/16/1990DE4003812A1 Electrodialyser sealing plate - has frame with rounded inlay network made of specified elastomer-plastomer materials
1 ... 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 ... 282