| 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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| 06/13/1979 | EP0002342A1 Water purification process |
| 06/12/1979 | CA1056391A1 Tetraalkyl phosphonium aluminosilicates |
| 05/16/1979 | EP0001787A1 Hydroxylamine purification via cation exchange |
| 05/15/1979 | US4154676 Ion exchange process using activated regenerated cellulose |
| 05/01/1979 | US4152496 Heterogeneous ion exchange resins |
| 04/10/1979 | CA1052071A1 Preparation of zirconium phosphate for ion exchange |
| 03/20/1979 | US4145281 Water purification process |
| 03/20/1979 | CA1050913A1 Process for the purification of slack waxes |
| 02/20/1979 | CA1048735A1 Method for transferring sulfuric acid or hydrogen sulphates in solution into usable products |
| 02/13/1979 | US4139684 Method for preparation of hydrophilic polymeric ion exchanging gels |
| 02/13/1979 | CA1048435A1 Separation of unsaturated compounds from liquid hydrocarbon mixtures containing same |
| 02/06/1979 | CA1048175A1 Phillipsite-gismondite for ammonia |
| 01/23/1979 | US4136067 Hybrid ion exchange resins with improved properties |
| 01/16/1979 | CA1046665A1 Inexpensive purification of urea waste streams |
| 01/09/1979 | US4133929 Ionically modified cellulose materials for removal of heavy metal ions |
| 12/19/1978 | US4130512 Ion exchange materials |
| 11/21/1978 | US4126574 Surfactant-containing aluminosilicates and process |
| 10/31/1978 | CA1041695A1 Copolymers based on n-substituted acrylamides, n-substituted methacrylamides and n,n. disubstituted acrylamides and the method of their manufacture |
| 10/24/1978 | US4122048 Neutralization, incorporating into thermosetting resin and crosslinking |
| 10/24/1978 | US4122007 Reclaiming process for zeolite served for adsorbing ammoniacal nitrogen contained in sewage |
| 10/17/1978 | US4120831 Process for producing carboxyl cationites |
| 09/05/1978 | US4112185 Polyamine-epoxide crosslinked polymer |
| 09/05/1978 | US4111858 Process for the preparation of polyhydroxy methylene ethers and ion exchangers composed thereof |
| 08/29/1978 | CA1037621A1 Fluid treating apparatus and method |
| 08/29/1978 | CA1037620A1 Fluid treating apparatus |
| 08/22/1978 | US4109080 Containing metal chelatable (azo-phenyl)sulfonyl-ethyl linkages |
| 08/22/1978 | CA1037057A1 Sulfonyl containing fluorocarbon vinyl ether and ion exchange membrane formed therefrom |
| 08/22/1978 | CA1037015A1 Process for improving the wettability of natural or synthetic zeolites |
| 08/15/1978 | US4107121 Ionogenic hydrophilic water-insoluble gels from partially hydrolyzed acrylonitrile polymers and copolymers, and a method of manufacturing same |
| 08/01/1978 | US4104209 Crosslinked beads from mono- and poly-olefinic monomers |
| 07/18/1978 | US4101460 High performance ion exchange composition |
| 07/11/1978 | US4100149 Method of separating proteins by ion exchange |
| 07/11/1978 | US4100065 Method for removing of multivalent heavy metals from metal plating waste effluents |
| 07/04/1978 | US4098690 To reduce ammonia content, by ion exchange |
| 06/20/1978 | US4096136 Method of selectively removing lipoprotein from blood plasma or serum using sulfated carbohydrate ion-exchangers |
| 06/20/1978 | US4096081 Water softeners |
| 06/13/1978 | US4094826 Fluorinated graft cation exchange copolymers |
| 06/13/1978 | US4094778 Calcium and magnesium cations |
| 04/11/1978 | US4083782 Water conditioning process |
| 03/07/1978 | US4077923 From comminuted tire stock, heat treatment, sulfonating |
| 12/13/1977 | US4062831 Copolymers based on N-substituted acrylamides, N-substituted methacrylamides and N,N-disubstituted acrylamides and the method of their manufacturing |
| 11/22/1977 | US4059679 Modified zirconium phosphates |
| 09/20/1977 | US4049891 Compositions for fast alkali-metal-ion transport |
| 08/30/1977 | US4045379 Process for preparation of modified ion-exchange resin |
| 08/30/1977 | US4045338 Method of removing scale-forming substances from hot water system |
| 08/09/1977 | US4041135 Production of high capacity inorganic crystalline base exchange materials |
| 08/02/1977 | US4039485 Ion exchange of metals from aqueous solutions using compositions of synthetic resins reacted with polyisocyanurate salts |
| 08/02/1977 | US4039483 Method of producing an ion exchanger by reacting unsaturated vulcanized or powdered rubbers with iodine isocyanate and then introducing ion exchange groups by further reaction |
| 08/02/1977 | US4039442 Ion-exchange process for desalting water and subsequent regeneration of the ion exchangers |
| 07/19/1977 | US4036751 Method of treating water containing chromate |
| 06/21/1977 | US4031037 Three-dimensional polymeric gel materials containing phosphoric acid residues capable of dissociation and a method for their preparation |
| 06/07/1977 | US4028234 Buffering agents |
| 05/24/1977 | US4025608 Zirconium phosphate |
| 05/10/1977 | US4022964 Ion exchanger on the basis of cellulose and process for its manufacture |
| 04/12/1977 | US4017425 Method of activation of red mud |
| 04/12/1977 | US4017262 Chromatographic apparatus for analysis of ionic species |
| 03/15/1977 | US4012318 Adjusting ph |
| 02/15/1977 | US4008307 Production of monobasic potassium phosphate by ion exchange |
| 02/01/1977 | US4006214 Process for the recovery of fluorine from an aqueous solution |
| 01/11/1977 | US4002564 Cation-exchange resins having cross-linked vinyl aromatic polymer matrix with attached amino alkylene phosphonic acid groups, their use, and preparation |
| 12/21/1976 | US3998627 Process for recovering metals from metal ammine bearing ammonium salt solutions using ion exchange resin |
| 12/14/1976 | US3997644 Blending polyethylene with a thermoplastic resin |
| 12/14/1976 | US3997596 Unsaturated carboxylic salt materials and derivatives thereof |
| 12/07/1976 | US3996334 Roasting, leaching, ion exchanging, alkali metal aluminates |
| 11/30/1976 | US3995009 Contacting with uranyl fluoride |
| 11/30/1976 | US3994830 Polyacrylamide |
| 11/09/1976 | US3991018 Method for preparation of cation exchangers by substitution of hydrophilic polymeric gels of crosslinked hydroxyalkyl acrylates and hydroxyalkylacrylamides |
| 11/09/1976 | US3991017 Ion exchange resins derived from hybrid copolymers |
| 11/02/1976 | US3989649 Process for production of spherical porous fillers for liquid chromatography by suspension polymerization of monovinyl and polyvinyl aromatic monomers in the presence of paraffin wax |
| 11/02/1976 | US3989624 Method and apparatus |
| 11/02/1976 | US3989622 Urease in insoluble form for converting urea present in a liquid |
| 10/26/1976 | US3988268 Polyurethane foam plastics which contain ionic groups |
| 10/12/1976 | US3985648 Method and system for purifying liquid |
| 09/21/1976 | US3981970 Method for the production of a zeolite material |
| 09/07/1976 | US3979280 Separation of unsaturated compounds from liquid hydrocarbon mixtures containing same |
| 08/24/1976 | US3976629 Process of manufacturing spherical polymeric beads |
| 08/24/1976 | US3976604 Preparation of ethylenimine prepolymer |
| 08/17/1976 | US3975267 Water purification |
| 08/03/1976 | US3972809 Vegetable material, ion exchange resin |
| 07/13/1976 | US3969344 Trioxane, 1,3-dioxolane, caprolactone, or caprolactam |
| 07/13/1976 | US3969337 Chromatographic fractionation of whey |
| 07/13/1976 | US3969285 Heat-treated fluorocarbon sulfonylamine cation permselectivity |
| 06/29/1976 | US3966596 High performance, cation-exchange chromatography on surface-sulfonated compositions |
| 06/08/1976 | US3962132 Process for improving the wettability of natural or synthetic zeolites |
| 06/01/1976 | US3960760 Sewer waste water treating agent produced from waste cracking catalyst |
| 06/01/1976 | US3960721 Fluid treating apparatus and method |
| 06/01/1976 | US3960703 Process for the purification of slack waxes |
| 05/25/1976 | US3959449 Method of recovering heavy metal [-bromine] bromides and hydrobromic acid catalysts for liquid-phase oxidation [catalyst] |
| 05/11/1976 | US3956258 Carcinoembryonic antigens |
| 04/06/1976 | US3948791 Ion exchanger and method for the production thereof |
| 03/02/1976 | US3941718 Insoluble crosslinked homopolymers and copolymers, polymerized on an inert substrate |
| 02/03/1976 | US3936388 Process for the production of silicon dioxide ion exchangers |
| 01/13/1976 | US3932494 Thiohumic acid, a process for preparing same, and its use for absorbing heavy metal ions |
| 01/06/1976 | US3931003 Ion exchanger for the treatment of waste water |