| Patents for B01J 47 - Ion-exchange processes in general; Apparatus therefor (4,635) |
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| 11/03/1993 | EP0568389A1 Process for removing oxidizable substance or reducible substance, composite supporting metal oxide or hydroxide, and process for production thereof |
| 11/03/1993 | EP0567879A2 Irradiation of cation exchange membranes to increase current efficiency and reduce power comsumption |
| 10/28/1993 | WO1993021114A1 Apparatus and method for cleaning waste water and waste sludge by means of ion exchangers |
| 10/27/1993 | EP0567161A2 Regenerable cation exchange resin |
| 10/26/1993 | US5256264 Process and apparatus for the in-situ decontamination of ground water containing heavy metals |
| 10/19/1993 | US5254227 Ion exchanging, conducting electric current, separating |
| 10/12/1993 | US5252193 Controlled depth abrasion of fluorinated ion exchange membrane having woven reinforcement of both permanent and sacrificial fibers for exposure of fiber intersections |
| 10/06/1993 | EP0563321A1 Electrodeionization apparatus. |
| 10/05/1993 | US5250187 Resin bed for liquid treatment |
| 09/29/1993 | CN2142834Y Double-flow ion-exchanger of regenerating on back flow |
| 09/28/1993 | US5248401 Ion exchange |
| 09/21/1993 | US5246681 Process for the removal of cadmium from solutions of phosphoric acid |
| 09/21/1993 | US5246586 Apparatus and method for producing ultrapure water and method of controlling the apparatus |
| 09/21/1993 | US5246572 Removable demineralization cartridge |
| 09/14/1993 | US5244929 Catalysts |
| 09/08/1993 | EP0559590A1 Process for obtaining metallic hydroxides |
| 09/08/1993 | CN2141735Y 小型离子交换柱 Small ion exchange column |
| 09/07/1993 | US5242503 Method of restoring contaminated solids using ion exchange powder contact |
| 09/02/1993 | WO1993016959A1 Fine purification of water and treatment of condensates in an ion-exchange system |
| 08/31/1993 | US5240579 Electrodialysis reversal process and apparatus with bipolar membranes |
| 08/31/1993 | US5240572 Electrochemical ion exchange |
| 08/31/1993 | US5240473 Utilization of ion transport membranes formed from multicomponent metal oxides |
| 08/24/1993 | US5238576 Multilayers of cationic polymers in chloride, sulfate, hydroxy and tertiary amino forms for water filtration, denitrification |
| 08/24/1993 | US5238559 Filter device |
| 08/24/1993 | CA1321450C Bipolar membranes and methods of making same |
| 08/19/1993 | DE4204697A1 Water hardness and pH long term control e.g. in ponds, fish tanks etc. - by circulating part of water through ion exchange unit for reduced mineral content and volume of water circulated is regulated in relation to pH value |
| 08/18/1993 | CN1021831C Purification (removal of metallic ion), decolourization and enhancement in transparency for gelatin |
| 08/17/1993 | US5236595 Method and apparatus for filtration with plural ultraviolet treatment stages |
| 08/11/1993 | CN2139934Y Programme controlled float bed sodium ion exchanger |
| 08/10/1993 | US5234601 Apparatus and method for controlling regeneration of a water treatment system |
| 08/10/1993 | CA1321210C Method for converting substances |
| 08/05/1993 | DE4302160A1 Softening water used in e.g. dishwashing machine - with controlled magnetic field at water flow directly before ion exchange unit |
| 07/28/1993 | EP0552187A1 Purification of hydrogen peroxide. |
| 07/28/1993 | CN2139020Y Internal regeneration positive and negative separating ion-exchanger |
| 07/27/1993 | US5230805 Ion exchange resin, ferromagnetic substance in polymeric binder |
| 07/22/1993 | WO1993014265A1 Porous webs |
| 07/22/1993 | WO1993013844A1 Chromatography system with flow-through capacitor and method |
| 07/22/1993 | CA2127979A1 Porous webs |
| 07/15/1993 | DE4200566A1 Replaceable cartridge for electric drinks-brewing machine - has inflow and outflow sieve with rectangular holes, sealing rims, and sealing lip. |
| 07/14/1993 | EP0551002A1 Ion exchange resin columns, systems comprising such colums, and processes using such columns |
| 07/14/1993 | CN1074197A Detachable cylindrical filter for demineralization |
| 07/14/1993 | CN1074148A Ion exchange resin columns, systems comprising such columns, and processes using such columns |
| 07/11/1993 | CA2086636A1 Ion exchange resin columns, systems comprising such columns, and processes using such columns |
| 07/06/1993 | US5225056 Separation method |
| 06/24/1993 | DE4142207A1 Removing halogenated hydrocarbon from fluid - by contacting with ring cpd. formed by reacting aldehyde with aromatic hydroxy cpd. or urea cpd. |
| 06/22/1993 | CA1319327C Purification of liquids with treated polyester fibers |
| 06/19/1993 | CA2058002A1 Ion exchange resin, process for producing the same, and method for removing impurities from condensate |
| 06/17/1993 | DE4241709A1 Ion exchange process - comprises passing liq. over surface of ion exchange resin and stirring resin, for adjusting resistivity of electro-erosion machining liq. |
| 06/16/1993 | EP0546342A2 A self-metabolic functional material |
| 06/16/1993 | CN2136065Y Filter for contained powdered ion exchanger |
| 06/15/1993 | CA1318991C Solvent dewaxing process |
| 06/08/1993 | US5217587 Electrochemistry deionization |
| 06/02/1993 | EP0544450A1 Supported Microspheres |
| 06/01/1993 | US5215665 Purification of hydrogen peroxide |
| 05/27/1993 | WO1993009860A1 Continuous multicomponent focusing in a magnetically stabilized fluidized bed |
| 05/26/1993 | CN1072393A Ion-exchange water softening process and equipment thereof |
| 05/25/1993 | CA1318331C Ion exchangers modified with mercapto amines |
| 05/21/1993 | CA2083296A1 Composition of matter |
| 05/19/1993 | EP0542122A1 Domestic water filter |
| 05/19/1993 | DE4136852A1 Ion exchange vessel - has dividing walls to contain ion exchange resin in segments for fluid to be treated to flow in one direction and regenerating fluid flow in opposite direction |
| 05/19/1993 | CN2133357Y Quickly regenerated double-convection ion-exchanger |
| 05/18/1993 | US5212206 Ion exchange modified with mercapto amines |
| 05/18/1993 | US5211973 Water treatment apparatus |
| 05/18/1993 | US5211851 Purification |
| 05/18/1993 | US5211823 Passing water flow over resin in multicompartment apparatus and applying electrical voltage |
| 05/05/1993 | EP0539789A1 Removable demineralization cartridge |
| 05/05/1993 | CN1071600A Particle-loaded blown microfiber article for separations and purifications |
| 05/01/1993 | CA2081859A1 Removable demineralization cartridge |
| 04/20/1993 | US5204048 Method for making a bundle of helical tubes and apparatus for separating impurities from a polluted liquid |
| 04/20/1993 | US5203976 Flowing slurry into compartments where particles are retained by screens |
| 04/15/1993 | WO1993006924A1 Particle-loaded nonwoven fibrous article for separations and purifications |
| 04/14/1993 | EP0536466A1 Process for the removal of cadmium from solutions of phosphoric acid |
| 04/13/1993 | CA1315968C Substrate and process for making a substrate |
| 04/12/1993 | CA2067263A1 Process for the removal of cadmium from solutions of phosphoric acid |
| 04/06/1993 | US5200628 Method for distinguishing particles in fluid and apparatus for the same including plural sensors and weighting |
| 04/06/1993 | US5200074 Ion-exchange apparatus having rotatable cartridges |
| 04/06/1993 | US5200068 Controlled charge chromatography system |
| 03/24/1993 | CN1070202A Polymeric sheet |
| 03/23/1993 | US5196115 Controlled charge chromatography system |
| 03/10/1993 | EP0530478A1 Method for treating a strongly basic anion exchange resin |
| 03/09/1993 | US5192432 Flow-through capacitor |
| 03/04/1993 | WO1993003841A1 Ion exchanger, production thereof, and process for separating biopolymer by using same |
| 03/02/1993 | US5190659 Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode controller |
| 02/23/1993 | US5188732 Ion exchange resin holder |
| 02/16/1993 | US5187200 Contacting aqueous solutions with a porous format of an insoluble polymer having multi-valent metal cations bonded to it |
| 02/04/1993 | WO1993002098A1 Isolation of charged particles from fluids |
| 02/03/1993 | EP0487643A4 Precoat septum with a continuous filament yarn |
| 02/02/1993 | US5183565 Apparatus and process for treating water |
| 01/26/1993 | US5181994 From ferrochrome; electrolysis |
| 01/21/1993 | WO1993001622A1 Polymeric sheet |
| 01/13/1993 | EP0522856A1 Purification of solutions |
| 12/29/1992 | US5175438 Method of distinguishing particles in fluid and apparatus for the same using dual wavelength reflectivity ratio sensing |
| 12/23/1992 | EP0519504A1 Process for purifying resins utilizing bipolar interface |
| 12/23/1992 | EP0519383A1 Purified amphoteric ion exchange resins and a process for their purification |
| 12/22/1992 | US5173179 Removal of contaminants and recovery of metals from waste solutions |
| 12/01/1992 | US5168005 Multiaxially reinforced membrane |
| 12/01/1992 | US5167939 Process for removing calcium and magnesium ions from an aqueous alkali chloride solution for use in membrane electrolysis |
| 11/24/1992 | US5166220 Water softening process |
| 11/19/1992 | DE4116128A1 Purificn. of water supply for domestic consumption - by treatment with mixt. of nitrate-selective anion exchanger and weak acid cation exchanger to give germ-free, low nitrate, partially desalted water |
| 11/17/1992 | US5164080 Ion-exchange treatment apparatus for dispersions |