| Patents for B01J 41 - Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties (3,418) |
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| 01/28/1992 | US5084104 Chromatography, anion exchange resin in sulfate form |
| 01/22/1992 | EP0467339A1 Water-swellable crosslinked polymer particles and process for their production |
| 01/22/1992 | CN1058030A Method for making aliphatic series anion-exchange membrane |
| 01/15/1992 | EP0466178A1 Method and device for removing heparin |
| 01/14/1992 | US5081160 Sulfonation |
| 01/14/1992 | CA2046807A1 Method and device for removing heparin |
| 01/08/1992 | EP0464458A1 Process for preparing poly(meth)acrylamide-type anion exchange resins |
| 01/08/1992 | EP0464187A1 Coated media for chromatography |
| 12/24/1991 | US5075371 Beads of three-dimensional crosslinked addition polymer which contains silica |
| 12/10/1991 | US5071563 Adsorption onto slurry of zirconium hydrous oxide powder |
| 12/03/1991 | CA1292815C Process for removal of fluoride and phosphorous type contaminants from acidic wastewater |
| 11/28/1991 | WO1991017830A1 Adsorbent medium |
| 11/26/1991 | US5068255 Ion exchange resins prepared by sequential monomer addition |
| 11/13/1991 | EP0455628A1 Method for preparation of anion exchange resins having very low chlorine content |
| 11/12/1991 | US5063874 Producing a black matrix-type phosphor screen of a cathode ray tube |
| 11/05/1991 | US5062957 Ion exchange, bacterial denitrification |
| 10/30/1991 | EP0453604A1 Process for the chromatographic determination of ions |
| 10/22/1991 | US5059654 Affinity matrices of modified polysaccharide supports |
| 10/16/1991 | EP0451706A1 Ultra-lightweight, open-pore foamed cellulose materials with large surface areas, having ion-exchangeable functional groups introduced therein |
| 10/02/1991 | EP0448831A2 Process for purifying waste water |
| 10/02/1991 | DE4010265A1 Purificn. of effluent water contg. complexed metal ions |
| 10/01/1991 | US5053138 Anion exchange resin; one step process, no loss of n-methyl-morpholine n-oxide; acidic regeneration of resin |
| 10/01/1991 | US5053135 Separating by interpenetrated form of silica and three-dimensional crosslinked acrylic, vinyl and/or allyl copolymer |
| 09/24/1991 | US5051128 Adsorption of a gold-iodine complex on an ion exchange resin, adding sulfuric acid and sodium nitrite and adding sodium sulf ite |
| 09/11/1991 | EP0445347A2 Process of extracting anions with quaternary amines |
| 09/10/1991 | US5047438 Crosslinked Addition Copolymer Particles Useful In Chromatography, Adsorption, Ion Exchanging And In Catalysis |
| 09/04/1991 | EP0444643A2 Anion exchanger |
| 08/06/1991 | US5037858 Anion selective polymers prepared from concentrated solutions of N,N'-methylenebisacrylamide |
| 07/26/1991 | WO1991011241A1 Coated media for chromatography |
| 07/24/1991 | EP0438331A1 Use of graft cellulose for water purification |
| 07/23/1991 | CA1286622C Method for clarifying and stabilizing cell culture media |
| 07/16/1991 | CA2034077A1 Use of grafted cellulose for purifying water |
| 07/09/1991 | US5030352 Adsorption of hydrophilic-hydrophobic molecules onto hydrophobic substrate, then crosslinking to form durable hydrophilic film |
| 07/03/1991 | EP0417194A4 Method and apparatus for purifying hydrogen fluoride |
| 06/27/1991 | DE3941989A1 Cleaning acid waste water from glass industry contg. sulphuric acid - by passage through strongly basic anion exchanger and through chelate resin exchanger contg. active oxime Gps. |
| 06/19/1991 | EP0432995A1 Crosslinked pyridinio-acrylate-polymers |
| 06/19/1991 | CN1052313A Preparation of trioodated resin (sterilizer) and its effect |
| 06/05/1991 | EP0430432A2 Removal of heat stable anions from alkanolamine salts |
| 05/29/1991 | EP0428868A2 Materials for removing suspended impurities |
| 05/29/1991 | DE3939071A1 Treating fresh water - by passage through anion exchanger loaded with carbonate ions |
| 05/28/1991 | CA1284546C Low-rinse, high-capacity, weakly basic acrylic ion exchange resin |
| 05/15/1991 | EP0427701A1 Process for purifying aqueous solutions of N-methyl-morpholine N-oxide |
| 05/15/1991 | EP0427256A1 Method for removing sulfate ions from aqueous solution of alkali metal chloride |
| 05/15/1991 | CN1051336A Adsorbent for removing suspended impurities and use thereof |
| 04/27/1991 | CA2027435A1 Removal of heat stable anions from alkanolamine salts |
| 04/23/1991 | US5010184 Ionically modified agarose |
| 04/17/1991 | CA2027513A1 Process for purifying an aqueous solution of n-methyl-morpholine n-oxide |
| 04/06/1991 | WO1991004791A1 Causing liquid/solid interaction |
| 04/06/1991 | CA2067380A1 Causing liquid/solid interaction |
| 03/20/1991 | EP0417407A1 Shaped bodies of macroporous ion exchanger resins and their use |
| 03/20/1991 | EP0417361A1 Process for decolorizing aqueous sugar solution |
| 03/20/1991 | EP0417282A1 Anion exchanger and use for treating fluid |
| 03/20/1991 | EP0417194A1 Method and apparatus for purifying hydrogen fluoride. |
| 03/19/1991 | US5001257 Preparation of 4-pentenoic acid, amide or esters by isomerization |
| 03/19/1991 | CA1281675C Product and process for increasing enzyme adsorption |
| 03/13/1991 | EP0416748A1 Quaternised pei silica solid supports for chromatography |
| 03/12/1991 | US4999190 Preparation of I5 - polyiodide disinfectant resins |
| 03/12/1991 | US4999113 Selective separation of thiocyanate ions from a scrubbing medium |
| 02/27/1991 | EP0414408A2 Carbon slurry regeneration |
| 02/14/1991 | DE3926586A1 Cleaning waste water from glass industry - using type I or II anion exchangers to remove arsenic and antimony fluoride complex ions |
| 01/29/1991 | US4988738 Process for the preparation of bifunctional anion exchange resins, new bifunctional anion exchange resins and use thereof |
| 01/23/1991 | EP0408937A1 Process for removing heavy metals from waste water |
| 01/23/1991 | EP0205575B1 High capacity, oxidatively stable polyamine ion exchange resins and process for preparation thereof |
| 01/22/1991 | US4986908 High performance liquid chromatography |
| 01/10/1991 | WO1991000145A1 Anion exchanger |
| 01/09/1991 | EP0406674A1 Ion exchange device for water treatment, process for its fabrication and its use for removing nitrites and/or nitrates from water |
| 01/08/1991 | WO1991000778A1 Ion exchange device for purifying water, process for manufacturing it and its use for removing nitrates and/or nitrites from water |
| 01/08/1991 | CA2039147A1 Ion exchange device for purifying water, process for manufacturing it and its use for removing nitrates and/or nitrites from water |
| 01/01/1991 | US4981952 Method for the purification of vitamin K-dependent proteins |
| 12/25/1990 | US4980335 With strongly basic anion exchange group for adsorption of non-carbon dioxide gases |
| 12/25/1990 | US4980067 Polyionene-transformed microporous membrane |
| 12/19/1990 | EP0403271A2 Polymer compounds |
| 12/19/1990 | EP0403198A2 Compounds |
| 12/19/1990 | EP0402865A1 Preparation of I5-polyiodide disinfectant resins |
| 12/12/1990 | EP0402062A2 Compounds |
| 12/05/1990 | EP0400848A2 Compounds |
| 11/27/1990 | CA1277064C Process for the preparation of ion exchange resins using seeded polymerization technology |
| 11/22/1990 | CA2016836A1 Compounds |
| 11/13/1990 | US4970300 Conjugate with ligand; longer half-life |
| 10/18/1990 | WO1990011829A1 Process for the elimination of undesirable substances in a liquid without modification of its characteristic composition and device for implementing said process |
| 10/18/1990 | WO1990011674A1 A process for removing selenium from wastewater effluent |
| 10/02/1990 | US4960953 Process for preparing polyglycerols |
| 10/02/1990 | CA1274948A1 Bead-shaped crosslinked copolymers containing epoxide groups and basic amino groups, a process for their preparation and their use |
| 09/20/1990 | WO1990010500A1 Anion exchanger and method for treating fluid |
| 09/05/1990 | EP0385587A1 Ion-exchange composition employing resin attachment to dispersant and method for forming the same |
| 09/05/1990 | EP0365635A4 Process for decolorizing aqueous sugar solutions via adsorbent resins, and desorption of color bodies from the adsorbent resins |
| 08/28/1990 | US4952675 Method for purifying antihemophilic factor |
| 08/28/1990 | US4952608 Process for preparing synthetic resins having anion exchanger properties by amidomethylating a backbone polymer containing aromatic nuclei with a specially prepared N-hydroxymethyl phthalimide |
| 08/28/1990 | US4952386 Filtration, extraction, ion-exchanging, regeneration |
| 08/28/1990 | US4952320 Chromium recovery process |
| 08/14/1990 | US4948814 Ion exchanger based on cross-linked glucomannan |
| 08/08/1990 | CN1044418A Reduction of leachables from anion exchange resins |
| 08/01/1990 | EP0380273A1 Reduction of leachables from type II anion exchange resins |
| 07/31/1990 | US4944878 Decontamination of water using nitrate selective ion exchange resin |
| 07/25/1990 | EP0167488B1 Ionically modified polysaccharides, process for their preparation and their use |
| 07/25/1990 | CN1044105A Compounds |
| 07/24/1990 | US4943654 Wirh hcn and acetic anhydride and acetic acid |
| 07/23/1990 | CA2008234A1 Reduction of leachables from type 11 anion exchange resins |
| 07/11/1990 | EP0377046A1 Fine particles of porous ion-exchange cellulose, process for their production, and affinity carrier |
| 07/03/1990 | US4939000 Carbon slurry regeneration method |