| 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) |
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| 10/28/1991 | CA2036801A1 Fluid purifying apparatus and method of purifying fluids |
| 10/23/1991 | EP0452902A2 Hollow fiber type liquid processing apparatus |
| 10/22/1991 | US5059327 Polyvinyl alcohol-polystyrenesulfonic acid reaction product on porous support |
| 10/22/1991 | US5059317 Transportable apparatus for producing drinking water |
| 10/21/1991 | WO1991016123A1 Porous polybenzoxazole and polybenzothiazole membranes |
| 10/21/1991 | CA2079909A1 Porous polybenzoxazole and polybenzothiazole membranes |
| 10/17/1991 | WO1991015284A1 Membrane separation process for dehydrating a gas or vapour or liquid mixture by pervaporation, vapour permeation or gas separation |
| 10/17/1991 | DE4012128A1 Verfahren zur katalysatorrueckgewinnung Method for katalysatorrueckgewinnung |
| 10/17/1991 | DE4011714A1 Cross-flow fluid filter - including supplemental chambers in core connected by channels to deliver fluid to indented face |
| 10/17/1991 | CA2034058A1 Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions |
| 10/16/1991 | EP0452238A2 Nanofiltration process for making dextrose |
| 10/16/1991 | EP0451721A1 Process for cleaning objects and apparatus therefor |
| 10/16/1991 | EP0451429A2 Blood-purifying equipment |
| 10/16/1991 | EP0451236A1 Process for making aqueous dispersions. |
| 10/16/1991 | EP0233199B1 Disposable diagnostic plasma filter dispenser |
| 10/15/1991 | WO1991016294A1 Process for catalyst recovery |
| 10/15/1991 | US5057225 Method of enrichment of oxygen-18 in natural water |
| 10/15/1991 | US5057212 Water conductivity monitor and circuit with extended operating life |
| 10/15/1991 | US5057197 Process and apparatus for the removal of undesired components from aqueous feedstocks |
| 10/15/1991 | US5056447 Rein-deer kite |
| 10/15/1991 | CA2080478A1 Process for catalyst recovery |
| 10/15/1991 | CA1290701C Dialysis cell |
| 10/09/1991 | EP0450257A1 Hydraulic machine capable of releasing the pressure of one liquid and simultaneously pumping another liquid |
| 10/09/1991 | EP0449942A1 Phosphonic acids and their uses in separation. |
| 10/09/1991 | EP0449873A1 Filtering apparatus |
| 10/09/1991 | CN1055125A Bidirectional ultrafiltration membrane pipe |
| 10/08/1991 | US5055631 Sulfonated polysulfone membranes for aromatics/saturates separation |
| 10/08/1991 | US5055198 Autologous blood recovery membrane system and method |
| 10/08/1991 | US5055197 Treating with an acid cation exchange resin and ultrafiltration |
| 10/08/1991 | CA1290257C Osmotic concentration by membrane |
| 10/03/1991 | WO1991014824A1 Membrane separation process |
| 10/03/1991 | WO1991014706A2 Lectin affinity membranes and methods for using them |
| 10/03/1991 | WO1991014497A1 Process for selective removal of volatile substances from liquids |
| 10/02/1991 | EP0449184A1 Method for treatment of liquid manure |
| 10/02/1991 | EP0449071A1 Process for the electrochemical separation of alkali-sulphates |
| 10/02/1991 | EP0448973A1 Spiral wound gas permeable membrane module and apparatus and method for using the same |
| 10/02/1991 | EP0448924A1 Process for separating water from a diluted aqueous solution of N-methylmorpholine-N-oxide, N-methylmorpholine and/or morpholine |
| 10/02/1991 | EP0448837A2 Method and apparatus for controlled instrumentation of particles with a filter device |
| 10/02/1991 | EP0448637A1 Heparin fragments as inhibitors of smooth muscle cell profileration |
| 10/01/1991 | US5053143 Fluid purifying apparatus and method of purifying fluids |
| 10/01/1991 | US5053132 Extraction hydropphilic & hydrophobic sides of a fiber |
| 10/01/1991 | US5053121 Blood cell washing systems and methods |
| 10/01/1991 | US5052902 Water-wave-energy converter |
| 10/01/1991 | CA2039419A1 Pervaporation process for separating a lower alcohol compound from a mixture of a lower alcohol compound and an ether compound |
| 10/01/1991 | CA1289893C Purification of oils containing solid matters in suspension |
| 10/01/1991 | CA1289730C Phase transfer catalysis |
| 09/26/1991 | DE4008983A1 REverse osmosis membrane used to filter pesticide-contaminated water - using low operating pressure to ensure only moderate desalination and removal of hardness |
| 09/25/1991 | EP0448466A1 Improvements of membrane filters for ultrafiltration or microfiltration of liquids, in particular of water |
| 09/24/1991 | US5051236 Process for reducing the concentration of viable cells in a flowable fluid |
| 09/24/1991 | US5051188 Permeation of vapor through a membrane |
| 09/24/1991 | CA2038830A1 Electrolysis of alkali metal sulfates |
| 09/24/1991 | CA2038485A1 Nanofiltration process for making dextrose |
| 09/24/1991 | CA1289493C Method and apparatus for catalyst containment in multiphase membranereactor systems |
| 09/24/1991 | CA1289473C Blood cell washing systems and methods |
| 09/19/1991 | WO1991013677A1 Autologous blood recovery membrane system and method |
| 09/19/1991 | WO1991013676A1 Fluid flow control device for water treatment systems |
| 09/19/1991 | DE4008458A1 Water treatment for tapping off purified water - where filtered precleaned water passes through reverse-osmosis and UV sterilising units to storage then is tapped off via UV steriliser |
| 09/18/1991 | EP0446296A1 Method for purification of bases from materials comprising base and salt. |
| 09/17/1991 | US5049281 Multi-block polymer comprising a first prepolymer, made by combining epoxy with diamine, chain extended with a compatible second prepolymer, the membrane made therefrom and its use in separations |
| 09/17/1991 | US5049275 Polymerizing vinyl monomer in pores of membrane |
| 09/17/1991 | US5049270 Filter apparatus having liquid control mechanism |
| 09/17/1991 | US5049259 Membrane process for drying liquid hydrocarbons |
| 09/17/1991 | US5049253 Electrode apparatus for dialysis |
| 09/17/1991 | US5049250 Electrodialytic treatment of aqueous solutions containing amino acids |
| 09/17/1991 | US5049248 Liquid separation process for suspensions by a pulsating electrical current |
| 09/17/1991 | US5049045 Power recovery turbine pump |
| 09/17/1991 | CA1289103C Demineralization of aqueous solution in cell including ionic exchange membranes using electrical potential |
| 09/11/1991 | EP0445989A2 Liquid purifying attachment having pressurizing piston |
| 09/11/1991 | EP0445414A2 Ultrafiltration method for purification of a pediococcal bacteriocin |
| 09/11/1991 | EP0445119A1 Method for purifying quaternary ammonium hydroxides |
| 09/10/1991 | US5047154 Method and apparatus for enhancing the flux rate of cross-flow filtration systems |
| 09/10/1991 | CA1288727C Method and apparatus for separating water from particulate material or oil from oil sands |
| 09/06/1991 | CA2031688A1 Ultrafiltration method for purification of a pediococcal bacteriocin |
| 09/04/1991 | EP0444285A1 Serial crossflow filtration assembly |
| 09/04/1991 | EP0277994B1 Blood cell washing systems and methods |
| 09/04/1991 | EP0246316B1 Treatment of emulsions |
| 09/04/1991 | CN1054234A Process for preparation of carbonates of alkali metals |
| 09/03/1991 | US5045207 Multi-concentration disposable liquid concentrating device |
| 09/03/1991 | US5045206 Selective multi-ring aromatics extraction using a porous, non-selective partition membrane barrier |
| 09/03/1991 | US5045204 Method and apparatus for generating a high purity chromatography eluent |
| 09/03/1991 | US5045198 Faucet-mounted microbial filter |
| 09/03/1991 | US5045197 Reverse osmosis purification system with unitary header manifold |
| 08/28/1991 | EP0443257A1 Spiral wound filtration system and method of utilizing same |
| 08/28/1991 | EP0442866A1 Method and plant for separation of synthetic water soluble polymers. |
| 08/28/1991 | CN1054079A Process for purifing solution or suspension of polyorganophosphazene by membranes |
| 08/27/1991 | US5043082 Longitudinal passageway, filter means |
| 08/27/1991 | US5043073 Method and apparatus for clearing toxic substances from biological fluids |
| 08/27/1991 | US5043072 Method of treating fluoride-containing water |
| 08/27/1991 | US5043071 Method of backwashing tubular filter membranes, and apparatus for implementing the method |
| 08/27/1991 | US5043069 Filtration device having hardened gum formed-in-place membranes |
| 08/27/1991 | US5043067 Cross-flow permeator |
| 08/27/1991 | US5043066 Fluid purifying apparatus and method of purifying fluids |
| 08/27/1991 | CA1288057C Cross flow microfilter |
| 08/23/1991 | CA2032459A1 Spiral wound filtration system and method of utilizing same |
| 08/22/1991 | WO1991012027A1 Process for depleting viruses in solutions and for determining the depletion rate of the viruses |
| 08/21/1991 | EP0442785A1 Process for purification of polyorganophosphazene solutions or suspensions by means of membranes |
| 08/21/1991 | EP0442677A2 Process for dehydration of gases |
| 08/21/1991 | EP0442557A1 Composite membrane and process for producing same |
| 08/21/1991 | EP0442224A2 Method and apparatus for generating a high purity chromatography eluent |
| 08/21/1991 | EP0218638B1 Pivot pin bearing for biomedical systems |