| 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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| 06/16/1981 | CA1103124A1 Preparation of aqueous suspensions of finely-divided water-insoluble silicate cation-exchangers |
| 06/09/1981 | US4272494 Method for recovering metals of groups V-VI of the periodic system from solutions and pulps |
| 06/03/1981 | EP0029715A1 Porous spherical carbonaceous product and production thereof |
| 06/02/1981 | US4271043 Pillared interlayered clay products |
| 06/02/1981 | CA1102457A1 Ion exchange process for desalination |
| 05/27/1981 | EP0029253A1 Process for improving the formation of hydrous alumina dispersed within a weak base anion exchange resin and use of the composite prepared for the recovery of Li+ from brine |
| 05/26/1981 | US4269705 Method for removing chromium ions from aqueous solutions of organic acids |
| 05/19/1981 | US4268269 Field test method for estimation of concentration of organic materials in water |
| 05/06/1981 | EP0028126A1 Material produced from cross-linked ionic chitin derivative, its preparation and use |
| 05/05/1981 | US4265768 Ion exchange material prepared from partially pyrolyzed macroporous polymer particles |
| 05/05/1981 | US4265634 Chromatographic separation and quantitative analysis of ionic species |
| 04/29/1981 | EP0027768A1 Acid-type ion exchange resins, their preparation, their use as medicines and compositions containing them |
| 04/21/1981 | US4263407 Polymeric adsorbents from macroreticular polymer beads |
| 04/21/1981 | US4263146 Contacting with anionic cellulose |
| 04/21/1981 | US4263145 Recovery of ammonia or amine from a cation exchange resin |
| 04/21/1981 | CA1099708A1 Cellulosic ion exchange fibers and preparing method thereof |
| 04/15/1981 | EP0027009A1 Process for producing fluorinated polymer having ion-exchange groups |
| 04/14/1981 | US4261819 Recovery of heavy metals from solution by contacting with cross-linked casein |
| 04/07/1981 | US4260740 Carboxylated cellulose ion-exchange materials |
| 04/07/1981 | US4260590 Recovery of salts of anthraquinone disulfonic acid in the Stretford process |
| 03/24/1981 | US4258136 Process for producing wood adsorbents for mercury ions by graft polymerization of acrolein onto xanthated wood meal followed by conversion to thiosemicarbazone |
| 03/17/1981 | US4256840 Macroreticular cation exchange beads and preparation of same |
| 03/11/1981 | EP0024987A1 Process for the treatment of lead chloride solutions |
| 02/24/1981 | US4252644 High performance ion exchange composition and the removal and separation of ions therewith |
| 02/18/1981 | EP0024055A1 Weakly acidic cation exchange resins and process for producing same |
| 02/17/1981 | CA1096065A1 Water softening system |
| 01/27/1981 | CA1094550A1 Ionic pullulan gels and production thereof |
| 01/20/1981 | US4246386 Ion exchange resins |
| 01/20/1981 | US4246355 Ion exchange processes and products |
| 01/13/1981 | US4245053 Macroreticular itaconic acid ion exchange resin and process for its preparation |
| 01/13/1981 | US4245005 Pellicular coated support and method |
| 01/06/1981 | US4243641 Method for recovering lithium from sea water |
| 01/06/1981 | CA1093228A1 Preparation of clear, dilute lime solution by ion exchange |
| 12/23/1980 | CA1092083A1 Ionically modified cellulose materials |
| 12/16/1980 | CA1091849A1 Highly porous ion exchange resins |
| 12/10/1980 | EP0019678A1 Process for the treatment of rinse water of metal pieces having undergone a pickling by a strong acid |
| 12/09/1980 | US4238318 Crystalline silicates and hydrocarbon-conversion processes employing same |
| 11/25/1980 | US4235804 Reacting hexafluoropropene with sulfur trioxide in presence of boron compound |
| 11/25/1980 | US4235715 Ion exchanging |
| 11/18/1980 | US4234419 Process for the removal of inorganic salts from a water stream |
| 11/18/1980 | CA1089698A1 Method and apparatus for desalination of whey |
| 10/28/1980 | US4230593 Pelletizing sodium aluminum silicate and low density polyethylene |
| 10/14/1980 | CA1087778A1 Polymeric compositions for use with membranes |
| 10/07/1980 | CA1087329A1 Process for the removal of metals from solutions |
| 09/30/1980 | CA1086883A1 Ionogenic hydrophilic water/insoluble gels from partially hydrolyzed acrylonitrile polymers and copolymers and a method of manufacturing same |
| 09/23/1980 | US4224415 Polymerization processes and products therefrom |
| 09/23/1980 | CA1086444A1 Process for loading weak-acid ion exchange resin with uranium |
| 09/09/1980 | CA1085388A1 Cationically modified cellulose-containing materials and their use for the purification of industrial effluent |
| 09/03/1980 | EP0015152A1 A method for removing multivalent heavy metal ions from a metal plating waste effluent |
| 09/03/1980 | EP0015098A1 Process for removing alkalinity and hardness from water |
| 09/03/1980 | EP0014950A1 Method of recovering anthraquinone disulphonic acid salts from a scrubbing liquor |
| 08/19/1980 | CA1083916A1 Particulate composition |
| 07/23/1980 | EP0013512A1 Methods for preparing a carboxyalkylated chitin and a de-acetylated derivative thereof |
| 07/22/1980 | US4213859 Dialysis with ion exchange extraction of phosphates |
| 07/01/1980 | US4210530 Treatment of metal plating wastes with an unexpanded vermiculite cation exchange column |
| 06/17/1980 | US4208305 Crystalline silicates and process of preparation |
| 06/10/1980 | US4207182 Polymeric compositions for membranes |
| 06/10/1980 | CA1079130A1 Mineral carriers with cross-linked polymer on surface |
| 06/03/1980 | US4206138 Perfluoroallyl fluorosulfate and its sultone and polymers |
| 05/14/1980 | EP0010969A1 Liquid treating method and apparatus |
| 05/14/1980 | EP0010871A1 Carboxylated cellulose ion-exchange materials, process for their preparation and their use in removing heavy metal ions from aqueous solutions |
| 05/14/1980 | EP0010857A2 Layered or amorphous organometallic inorganic polymers and their use |
| 05/14/1980 | EP0010769A2 Adsorption separation method and apparatus therefor |
| 05/13/1980 | US4202944 Selective ion exchange resins with pyridyl-imidazolyl chelating functional groups |
| 05/13/1980 | US4202765 From aqueous solution of hydroxylammonium salts in mixture with salts of other cations |
| 05/06/1980 | US4201827 Magnetically supported particle matrix for accumulating or affecting substances dissolved or finely dispersed in a liquid or gas |
| 04/30/1980 | EP0010366A1 Solid organometallic inorganic polymers and their application |
| 04/29/1980 | US4200735 Functional group comprising an iminodicarboxylic acid derivative |
| 04/17/1980 | WO1980000704A1 Layered or amorphous organometallic inorganic polymers |
| 04/17/1980 | WO1980000703A1 Solid organometallic inorganic polymers |
| 04/15/1980 | US4198326 Method for preparing modified graft copolymers of cellulose with monovinyl monomers in the presence of a divinylbenzene modifier |
| 04/08/1980 | US4197100 Filtering member for filters |
| 04/02/1980 | EP0009395A1 Cation exchange process, certain cation exchange resins and materials useful therein and processes for their preparation |
| 04/01/1980 | CA1074766A1 Production of high capacity inorganic crystalline base exchange materials |
| 03/11/1980 | US4192921 Crosslinked gel ion exchange resin beads characterized by strain birefringence patterns |
| 03/04/1980 | US4191813 Ion exchange resins crosslinked by a lewis acid |
| 02/19/1980 | US4189539 Ion exchange resin |
| 02/12/1980 | US4188292 Ion exchanging, reaction with nitric oxide, nitrous acid or nitrite salt |
| 02/06/1980 | EP0007792A1 Synthetic polymeric adsorbents and ion exchange resins, their production and processes using them |
| 02/06/1980 | EP0007791A1 Polymer beads containing vinylbenzyl alcohol units, their production, processes for thermally crosslinking them, the thermally crosslinked beads and adsorbents and ion exchange resin formed therefrom |
| 02/05/1980 | CA1071232A1 Process for the preparation of polyhydroxy methylene ethers and ion exchangers composed of the same |
| 01/29/1980 | US4186174 Process and apparatus for obtaining a more concentrated solution of a component using ion exchange beds |
| 01/15/1980 | CA1069843A1 Method of separating proteins by ion exchange |
| 01/08/1980 | US4182676 Method and system for purifying liquid |
| 12/25/1979 | US4180551 Ion exchanging |
| 12/25/1979 | US4180499 Isolation |
| 12/11/1979 | US4178439 Crosslinked carbohydrate |
| 12/11/1979 | US4178438 Purification of industrial wastes |
| 12/11/1979 | US4178354 Alkali metal aluminosilicophosphates |
| 12/11/1979 | US4178270 Method for supporting hydrous metal oxide on carrier |
| 12/04/1979 | US4177331 Sulfonation or chlorosulfonation |
| 11/20/1979 | US4175183 Hydroxyalkylated cross-linked regenerated cellulose and method of preparation thereof |
| 11/13/1979 | US4174440 Ionic pullulan gels and production thereof |
| 09/11/1979 | US4167481 Process for the removal of metals from solution |
| 09/04/1979 | CA1061945A1 Amino alkylene phosphoric acid resins, their use and preparation |
| 07/17/1979 | US4161513 Method of preparing titanates suitable as ion-exchange material |
| 07/17/1979 | US4161446 Process for the treatment of ground water |
| 07/10/1979 | CA1058337A1 Process for large scale chromatography |
| 06/26/1979 | US4159350 Method and apparatus for desalination of whey |
| 06/26/1979 | CA1057272A1 Process for producing grit-free zeolitic molecular sieves |