| Patents for B01J 39 - Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties (4,694) |
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| 05/26/1994 | WO1994011408A1 Insoluble, slightly-swelling polymers with amino groups, process for making them and their use |
| 05/26/1994 | CA2143939A1 Insoluble, slightly-swelling polymers with amino groups, process for making them and their use |
| 05/24/1994 | US5314922 Ion exchange fibers and method for manufacturing the same |
| 05/24/1994 | US5314638 Ion exchange materials produced from hydrolyzed, debituminized, sulfonated peat |
| 05/18/1994 | EP0597460A1 Method of processing organic quaternary ammonium hydroxide-containing waste liquid |
| 05/11/1994 | WO1994010091A1 Sorbent for removing microorganisms and harmful inorganic and organic impurities from water, and a device for using the same |
| 05/11/1994 | EP0596484A1 Process for preparing formic acid |
| 05/11/1994 | EP0596106A1 Process for preparing carrier for cation exchange liquid chromatography and method of quantitatively determining glycosylated hemoglobin using said carrier |
| 05/11/1994 | DE4237439A1 Unlösliche, nur wenig quellbare Polymerisate mit Aminogruppen, Verfahren zu ihrer Herstellung und ihre Verwendung Insoluble, only slightly swellable polymers containing amino groups, processes for their preparation and their use |
| 05/11/1994 | CN1086508A Preparation of formic acid |
| 05/04/1994 | EP0595217A1 Process for working up hydraulic fluids containing glycols as base materials |
| 05/03/1994 | US5308876 Cation exchange resins |
| 04/28/1994 | WO1994002417A3 Process for the removal of sodium values from sodium contaminated solids |
| 04/27/1994 | EP0594065A1 Process for recovering boron trifluoride |
| 04/20/1994 | CN1085540A Process for the production of acetic acid |
| 04/19/1994 | US5304365 Recovering ammonia by ion exchange with preheated aluminum silicate |
| 04/12/1994 | US5302623 Method of stabilizing cation-exchange resins against oxidative degradation |
| 04/05/1994 | US5300653 Sorbing with acidic cationic exchange resin converted to salt; desorbing with water; TRP, TYR and PHE |
| 03/31/1994 | WO1994006850A1 Heterogeneous membrane and method |
| 03/31/1994 | WO1994006822A1 Method of isolating biomolecules by ion exchange |
| 03/29/1994 | US5298615 Ultra-lightweight, open-pore foamed cellulose materials with large surface areas, having ion-exchangeable functional groups introduced therein |
| 03/29/1994 | US5298166 Method for aqueous radioactive waste treatment |
| 03/29/1994 | CA1328099C Small-pored crystalline titanium molecular sieve zeolites |
| 03/23/1994 | EP0588335A1 Separation column and method for preventing its deterioration |
| 03/16/1994 | CN1083807A Process for the conversion of oximes into the corresponding amides |
| 03/15/1994 | US5294305 Heating to dissolve oligomers; ion exchanging, distilling |
| 03/08/1994 | US5292818 Method for producing a carrier for cation exchange liquid chromatography and a method for determining glycosylated hemoglobins using the carrier |
| 03/08/1994 | US5292493 Reduced corrosion of carbon steel |
| 03/08/1994 | CA1327568C Ionically modified polysaccharides, process for their preparation and the use thereof |
| 03/03/1994 | WO1994004271A1 Composite ion-exchange material, preparation and use thereof |
| 03/02/1994 | CN1082945A Weak-acidic cationic exchange resin |
| 02/17/1994 | WO1994003573A1 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 02/17/1994 | WO1994003398A1 Treatment of aqueous flushing solutions from zinc phosphatization processes |
| 02/17/1994 | DE4231628C1 Nitrogen elimination purificn. process by ion exchange adsorption of ammonium and ions, and an appts. - by intensive airing and washing with water in a separate nitrification reactor unit |
| 02/17/1994 | CA2141841A1 Treatment of aqueous rinsing solutions from zinc phosphating processes |
| 02/17/1994 | CA2141220A1 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 02/16/1994 | EP0582811A1 Formed sulfonate groups containing polysiloxanes, process for their preparation and their application |
| 02/16/1994 | CN1082000A Natural zeolite molecular sieve and productive method thereof |
| 02/10/1994 | DE4226080A1 Aufbereitung wäßriger Spüllösungen aus Zinkphosphatierungsprozessen Preparation of aqueous rinse solutions from Zinkphosphatierungsprozessen |
| 02/09/1994 | CN1081708A Use of aluminosilicates of the zeolite P type as low temperature calcium binders |
| 02/08/1994 | CA1326936C Cation exchange resins incorporating antioxidants |
| 02/03/1994 | WO1994002417A2 Process for the removal of sodium values from sodium contaminated solids |
| 02/03/1994 | WO1994002240A1 Gelled material compositions with modified halopolymer |
| 02/03/1994 | CA2132638A1 Process for the removal of sodium values from sodium contaminated solids |
| 02/01/1994 | US5283123 Polymer/wax blend polymer particles having cellulose capable of binding charged molecule |
| 01/25/1994 | US5281631 Phosphonic acid based ion exchange resins |
| 01/19/1994 | CN1080914A Process for preparing 2,2-di(4-hydroxy phenyl) propane |
| 01/18/1994 | US5279744 Method for purification of an amino acid using ion exchange resin |
| 01/11/1994 | US5278193 Ion exchange resin beads having aminoalkylphosphonic groups and processes for preparing them |
| 01/11/1994 | US5277931 Composite ion-exchange material, preparation and use thereof |
| 01/11/1994 | CA1326006C Particulate material suitable for selectively separating metal cations from aqueous solutions, process for its production, and use thereof |
| 01/06/1994 | WO1994000237A1 Ion exchange resin |
| 01/06/1994 | WO1994000215A1 Ion chromatographic separations using step and linear voltage waveforms at a charge-controllable polymeric stationary phase |
| 01/06/1994 | WO1994000214A1 Passivated and stabilized porous supports and methods for the preparation and use of same |
| 01/06/1994 | CA2138760A1 Ion exchange resin |
| 01/05/1994 | EP0577203A1 Process for the conversion of oximes into the corresponding amides |
| 12/29/1993 | CN1023298C Isolated material |
| 12/28/1993 | US5273660 Aminoalkylphosphonic acid containing ligands attached to solid supports for removal of metal ions |
| 12/23/1993 | WO1993025592A1 An adiabatic process for the preparation of ion exchange and adsorbent copolymers |
| 12/23/1993 | CA2137360A1 An adiabatic process for the preparation of ion exchange and adsorbent copolymers |
| 12/22/1993 | CN1079714A Aluminosilicates |
| 12/21/1993 | US5271837 Drinking water filtration system |
| 12/14/1993 | US5270273 Olefin oligomerization catalyst |
| 12/14/1993 | US5269905 Apparatus and process to regenerate a trivalent chromium bath |
| 12/08/1993 | EP0573189A1 Process for the production of acetic acid |
| 12/08/1993 | CN1079229A Crosslinked methacrylic anhydride copolymers |
| 12/07/1993 | US5268155 Filtration; anionic exchange resin |
| 12/07/1993 | US5268107 Modified clinoptilolite as an ion exchange material |
| 12/07/1993 | US5268097 Passivated and stabilized porous mineral oxide supports and method for the preparation and use of same |
| 12/01/1993 | EP0572115A2 Crosslinked methacrylic anhydride copolymers |
| 11/30/1993 | CA2096492A1 Crosslinked methacrylic anhydride copolymers |
| 11/23/1993 | US5264225 Silicon-containing environment-protective agent adsorbing radioactive metal isotopes and toxic heavy metals and a pharmaceutical composition containing same |
| 11/23/1993 | US5264132 Method of removing alkaline materials from waste water |
| 11/11/1993 | WO1993022094A1 Method of ion exchange treatment in the production and regeneration of aqueous electrical discharge machining fluid |
| 11/09/1993 | US5259960 Regeneration and recycling of contaminated solutions from aluminum and tin washer processes |
| 10/27/1993 | EP0567161A2 Regenerable cation exchange resin |
| 10/26/1993 | US5256615 Granular inorganic exchangers |
| 10/13/1993 | EP0565364A1 Aluminosilicates |
| 09/29/1993 | EP0561998A1 The removal of heavy metals, especially lead, from aqueous systems containing competing ions utilizing amorphous tin and titanium silicates |
| 09/28/1993 | US5248435 Styrene-divinylbenzene copolymer |
| 09/22/1993 | CN1076385A Process for preparing high temp. positive ion-exchange resin catalyst |
| 09/21/1993 | US5246586 Apparatus and method for producing ultrapure water and method of controlling the apparatus |
| 09/21/1993 | CA1322378C Removal of formaldehyde from aqueous solutions of 2-butyne-1,4-diol |
| 09/16/1993 | WO1993018437A1 Photoresists having a low level of metal ions |
| 09/14/1993 | US5244926 Retaining heat of reaction to raise temperature, divinylbenzene-styrene copolymer |
| 09/14/1993 | US5244650 Large-pored molecular sieves with charged octahedral titanium and charged tetrahedral aluminum sites |
| 08/25/1993 | EP0556879A2 Ion exchange resins |
| 08/17/1993 | US5236595 Method and apparatus for filtration with plural ultraviolet treatment stages |
| 08/11/1993 | EP0417238B1 Silicon-containing environment-protective agent adsorbing radioactive metal isotopes and toxic heavy metals and a pharmaceutical composition containing same |
| 08/10/1993 | CA1321193C Process for demineralizing sugar solutions |
| 08/04/1993 | EP0377046B1 Fine particles of porous ion-exchange cellulose, process for their production, and affinity carrier |
| 07/28/1993 | EP0552703A1 Cation exchange resins having an enhanced capacity for iron oxides |
| 07/28/1993 | EP0552187A1 Purification of hydrogen peroxide. |
| 07/22/1993 | WO1993013855A1 Aluminosilicates with modified cation affinity |
| 07/21/1993 | CN1021657C Transition metal recovery |
| 07/14/1993 | EP0551002A1 Ion exchange resin columns, systems comprising such colums, and processes using such columns |
| 07/14/1993 | EP0550967A1 Removal of mercury from waste streams |
| 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 |
| 07/08/1993 | WO1993012882A1 Phosphonic acid based ion exchange resins |