Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01J - Chemical or physical processes, e.g. catalysis, colloid chemistry; Their relevant apparatus › B01J 39 - Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
Patents for B01J 39 - Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties (4,694)
08/1989
08/30/1989EP0330187A2 Cation exchanger
08/29/1989US4861705 Method for removing components of biological fluids
08/29/1989US4861490 Removal of cationic impurities from inorganic solutions
08/23/1989EP0328979A2 Macroporous ion-selective exchange resins
08/22/1989US4859343 Ion exchanging using antimonic or polyantimonic acid
08/15/1989US4857599 Modified dense star polymers
08/15/1989US4857202 Sodium-selective cation exchange resins for ammonia-cycle condensate polishing
08/15/1989CA1258543A1 Removal of ammonia from wastewater
08/09/1989EP0327400A2 Chromatographic separations using ion-exchange resins
08/09/1989EP0326759A1 Method of increasing the Ion Exchange Capacity of a Titanosilicate
08/08/1989US4855059 Purification of brines with hydrous metal oxide ion exchangers
08/08/1989CA1258342A1 Preparation of ion-exchange catalysts
08/02/1989EP0326233A1 Ion-exchange resins and processes for preparing them
08/01/1989US4853437 Ion exchange resins; thickeners
07/1989
07/26/1989CN1034212A Composite ion conductive film
07/25/1989US4851122 Purification, mixture of ion exchange resins
07/13/1989WO1989006221A1 Method and apparatus for treatment of raw water
06/1989
06/28/1989EP0322013A2 A process for the preparation of solid dispersions of acid salts of tetravalent metals having lamellar structure in an inert inorganic matrix, and the products so obtained
06/27/1989US4842689 Method for controlling sulphite pulping and hydrolytic processes by means of rapid furfural analyzer
06/27/1989CA1256384A1 Process for continuous removal of ammoniacal nitrogen from aqueous streams
06/20/1989CA1256086A1 Binary ion exchanged type x zeolite adsorbent
06/14/1989EP0320184A1 Agents for removing human immunodeficiency virus and/or its related compounds
06/14/1989EP0319615A1 Process for removing mercury from organic media
06/13/1989CA1255827A1 Polysaccharide supports
06/06/1989CA1255057A1 Method of controlling sulphite pulping and hydrolytic processes by means of a rapid furfural analyzer
05/1989
05/18/1989WO1989004203A1 Chromatography apparatus and method and material for making the same
05/18/1989DE3836138A1 Particulate medium suitable for the selective separation of metal cations from aqueous solutions, process for the production thereof and use thereof
05/16/1989US4830837 Ion exchange
05/11/1989DE3736561A1 Verfahren zur herstellung von ionenaustauscherharzen oder adsorbensharzen unter anwendung von ueberdruck Process for the preparation of ion exchange resins or adsorbensharzen under application of excess pressure
05/09/1989US4828812 Treating with aqueous base
05/09/1989US4828810 Removal of low level ethylene oxide contaminants by treatment of contaminated gases with cationic exchange resins at gas-solid interface reaction conditions
05/05/1989WO1989003840A1 Method of purifying protein
05/03/1989EP0314026A1 Particle agent for the selective removal of metal cations from aqueous solutions, process for its production and its use
05/03/1989EP0313647A1 Ion exchange method for separation of scandium and thorium
05/03/1989CN1032661A Method of purifying protein
05/02/1989US4827029 Ion exchanging
05/02/1989US4826790 Production of porous mullite bodies
05/02/1989US4826789 Porous inorganic materials
05/02/1989US4826663 Zirconium phosphate and method for its preparation
04/1989
04/26/1989EP0313343A1 Method of purifying protein
04/25/1989US4824575 Ion-exchanging
04/25/1989CA1253129A1 Porous inorganic materials
04/19/1989EP0312242A2 Ion exchanger based on cross-linked glucomannan
04/11/1989US4820439 Washing and cleaning agent containing surfactants, builder, and crystalline layered sodium silicate
04/11/1989US4820421 System and method for demineralizing water
04/05/1989EP0309915A1 Process for removing formaldehyde from aqueous solutions of but-2-yn-1,4-diols
03/1989
03/28/1989US4816233 Ion exchange method for the recovery of scandium
03/21/1989US4813410 Gas mask filter for the removal of low level ethylene oxide contaminants from air comprising dried cationic exchange resins
03/15/1989EP0306980A1 An ion exchange method for the recovery of scandium
03/08/1989EP0306261A2 Use of a cation exchange polyimide resin
03/08/1989EP0305774A1 Ion exchange resin modified by thiazolines
03/02/1989DE3728003A1 Process for carrying out ion exchange reactions on micas
03/01/1989EP0305091A2 Process for preparing a copolymer in the form of beads and uses thereof
02/1989
02/22/1989EP0304377A2 Polymers derived from polystyrenes and cross-linked dextranes, their preparation and their use in the analysis and the purification of biologic molecules
02/21/1989US4806236 Apparatus for upflow ion exchange
02/14/1989US4804686 Cation-exchange support materials and method
02/08/1989EP0302293A1 Process for purifying solids and liquids
01/1989
01/11/1989EP0298889A2 A process for bleaching and increasing the ion exchange capability of sepiolite
01/10/1989US4797366 Removal of hydrogen sulfide with cation exchange resin
01/04/1989EP0297302A1 Preparation of 4-pentenenitrile by isomerization
01/03/1989US4795565 Ion exchange resins
12/1988
12/28/1988EP0296584A2 Removal of halides from carboxylic acids
12/28/1988CN88103473A 10n exchange resins loaded with quinolonecarboxylic acid derivatives their preparation and use
12/28/1988CA1247761A Method for treating aqueous solutions with weakly acidic cation exchange resins
12/21/1988EP0295495A1 Ion exchange resins loaded with quinoline carboxylic acid derivatives, their preparation and use
12/21/1988CN88100785A Gel-type chelating resins and process for removal of multi-valent, alkaline earth or heavy metal cations from solutions
12/13/1988US4791063 Removal of contaminants from biological fluids
11/1988
11/30/1988EP0292662A2 Process for demineralizing a sugar-containing solution
11/22/1988US4786481 Method for eluting a metal adsorbed on a chelating agent
11/09/1988EP0289543A1 A method for cleansing metal-containing solutions, and apparatus herefor.
11/08/1988US4783546 From 3-pentenenitrile with heterogeneous catalyst
11/08/1988CA1244225A1 Synthesis of silicophosphoaluminate
11/08/1988CA1244224A1 Silicophosphoaluminates and related crystalline oxides
11/08/1988CA1244223A1 Crystalline silicophosphoaluminate
11/08/1988CA1244222A1 Crystalline silicophosphoaluminate
11/08/1988CA1244221A1 Crystalline silicophosphoaluminate
11/08/1988CA1244220A1 Crystalline silicophosphoaluminate
11/08/1988CA1244219A1 Crystalline silicophosphoaluminate
11/08/1988CA1244218A1 Crystalline silicophosphoaluminate
11/03/1988WO1988008323A1 Ion exchange method for separation of scandium and thorium
11/01/1988US4781838 Solid polyvinyl alcohol-based support able to adsorb lipoproteins and its use for the separation of low density lipoproteins present in a liquid, such as blood plasma
10/1988
10/25/1988US4780239 Ion exchange resin for immobilizing radioactive waste
10/19/1988EP0287436A1 Monofunctionalized cyclic tetramines, process for their preparation, their polymers and use of these polymers
10/19/1988EP0286699A1 Process for the removal of cations of an earth alkali metal species from aqueous solutions by means of an ion exchange material
10/19/1988EP0286698A1 Process for removing heavy metal and/or alkali metal cations from aqueous solutions by means of an ion exchange material
10/06/1988DE3709463A1 Process for separating off the group of rare earth elements, scandium and yttrium
09/1988
09/28/1988EP0283978A1 Use of ionexchanging mixtures of mineral materials for water treatment
09/27/1988US4774262 Crosslinked, binding, esterification recovering metals
09/14/1988EP0281645A1 Antimicrobial cation exchange composition
08/1988
08/30/1988US4767850 Process for the purification of acarbose with polymers
08/23/1988US4765909 Ion exchange method for separation of scandium and thorium
08/23/1988CA1240923A1 Lipoprotein fractionation
08/17/1988EP0278411A2 Gel-type chelating resins and a process for removal of multivalent, alkaline earth or heavy metal cations from solutions
08/10/1988CN87100511A Resin and its making method for treatment waste water containing mercury
08/09/1988US4762690 Crandallites
08/09/1988CA1240450A1 Removal of iodide compounds from non-aqueous organic media
08/09/1988CA1240419A1 Process and device for treating liquids with cation exchangers and anion exchangers
08/04/1988EP0264368A4 Process for preparing improved weak acid resins and porous weak acid resins.
08/03/1988EP0276392A2 Process for the isolation of L-amino acids
08/02/1988CA1239923A1 Silica intercalated crystalline zirconium phosphate- type materials
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