| 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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| 06/26/1997 | DE19644217A1 Verfahren zur Herstellung von stark sauren Kationenaustauschern Process for the preparation of strongly acidic cation exchangers |
| 06/25/1997 | CN1035251C Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides |
| 06/17/1997 | US5639861 Shperes; ion exchange resins; absorbers |
| 06/17/1997 | US5639550 Composite particulate material and process for preparing same |
| 06/10/1997 | US5637627 Method for producing a spherical ion exchange resin |
| 06/10/1997 | US5637225 Method for fractionating sulphite cooking liquor |
| 06/04/1997 | EP0722360B1 Ion exchanger |
| 06/04/1997 | CN1151128A Separating and concentrating certain ions using ion-binding ligands bonded to membranes |
| 06/03/1997 | US5635075 Method of removing organic contaminants from air and water with organophilic, quaternary phosphonium ion-exchanged smectite clays |
| 05/28/1997 | EP0775670A1 Crystalline silicate powder |
| 05/28/1997 | CN1150764A Polymeric microbeads and method of preparation |
| 05/27/1997 | US5632898 Method for removing unreacted electrophiles from a reaction mixture |
| 05/15/1997 | WO1997017295A1 Ion exchange process for separation of iron (iii) ions from aqueous sulfuric acid metal ion-containing solutions |
| 05/13/1997 | US5628941 Process for the production of cellulose moulded bodies |
| 05/13/1997 | US5628907 Process for separating acid-sugar mixtures using ion exclusion chromatography |
| 05/02/1997 | EP0770427A2 Thermally-driven ion-exchange process for lithium recovery |
| 04/29/1997 | CA2014666C Large-pored molecular sieves with charged octahedral titanium and charged tetrahedral aluminum sites |
| 04/24/1997 | WO1997014862A1 Pneumatically convertible roof |
| 04/24/1997 | WO1997014652A1 Partially crystalline layered sodium titanate |
| 04/24/1997 | CA2235337A1 Partially crystalline layered sodium titanate |
| 04/17/1997 | WO1997013580A1 A metathetic process utilizing a cation exchanger |
| 04/08/1997 | US5618851 Grafted methylenediphosphonate ion exchange resins |
| 04/08/1997 | US5618783 Synthesized inorganic ion exchange material and detergent composition containing the same |
| 04/08/1997 | US5618438 Method of isolating an analyte using a solid phase extraction medium |
| 04/08/1997 | US5618437 Process for removing sulphate from aqueous solution |
| 04/08/1997 | US5618433 Processes for separating and concentrating certain ions from mixed ion solutions using ion-binding ligands bonded to membranes |
| 04/01/1997 | US5616622 Imbibing polymer seeds of a vinyl aromatic copolymer with a vinyl aromatic monomer(s) and free radical catalyst; addition polymerization to form a matrix; crosslinking; ion exchange resins; oxidation resistance |
| 04/01/1997 | US5616407 Self-wettable solid phase extraction medium |
| 04/01/1997 | US5616243 Filter for inverted bottle type water dispenser |
| 03/27/1997 | WO1997011099A2 Functionalized copoly(m-phenylene)-based solid polymer electrolytes |
| 03/27/1997 | DE19535086A1 Polymere Festkörperelektrolyte auf Basis funktionalisierter Copoly(m-phenylen)e Polymeric solid electrolytes based on functionalized copoly (m-phenylene) s |
| 03/26/1997 | EP0764047A1 Polymeric microbeads and method of preparation |
| 03/19/1997 | EP0763199A1 Apparatus/method for electrochemically modifying chromatographic material |
| 03/19/1997 | EP0762928A1 Azlactone-functional membranes and methods of preparing and using same |
| 03/18/1997 | US5612522 Reaction of sodium silicate and aluminate solutions to form sodium aluminosilicate gel for zeolites and reaction with potassium carbonate or bicarbonate |
| 03/18/1997 | US5612275 Chemically active ceramic compositions with a phospho-acid moiety |
| 03/13/1997 | DE19621352A1 Treatment of rinsing water |
| 02/27/1997 | WO1997007138A1 Process for re-using an aqueous process fluid from the amine oxide process |
| 02/27/1997 | WO1997007108A1 Process for the selective separation of morpholine |
| 02/27/1997 | CA2202362A1 Process for re-using an aqueous process fluid from the amine oxide process |
| 02/27/1997 | CA2202153A1 Process for the selective separation of morpholine |
| 02/26/1997 | EP0758922A1 Process for the demineralization of a liquid containing dissolved organic substances and salts |
| 02/19/1997 | EP0758261A1 Chemically modified solid phase extraction particles and articles containing same |
| 02/18/1997 | US5603987 Composite particulate material and process for preparing same |
| 02/12/1997 | EP0757589A1 Separating and concentrating certain ions using ion-binding ligands bonded to membranes |
| 02/12/1997 | EP0757588A1 Method of controlling density of ligand coupled onto supports and products produced therefrom |
| 02/11/1997 | US5602247 Using an ion exchange resin |
| 02/11/1997 | US5602071 Comprising peat moss and a poly(carboxylic acid) binder that has been crosslinked and neutralized with an alkali metal; sorption |
| 02/11/1997 | US5601722 Converting anion exchange resin to hexacyanoferrate/ii/ form, washing with water, adding aqueous copper salt solution to form insoluble copper hexacyanoferrate in pores, oxidizing, reducing in presence of monovalent cations, copper ions |
| 02/06/1997 | WO1997004141A1 Zirconium and hafnium separation in chloride solutions using continuous ion exchange chromatography |
| 02/04/1997 | US5599976 Reacting methanol, methyl acetate or dimethyl ether in the presence of a group 8 metal catalyst, methyl iodide and water; separation; purification; recycling methyl acetate |
| 02/04/1997 | US5599898 Insoluble, only slightly swellable polymers containing amino groups, their preparation and their use |
| 02/04/1997 | US5599516 Recovery of lithium values from brines |
| 02/04/1997 | US5599453 Porous mineral oxide substrate matrix, three-dimensional polymer gel network; for separation of biomolecules |
| 01/23/1997 | WO1997002308A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for producing them |
| 01/23/1997 | CA2225817A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for preparing them |
| 01/22/1997 | EP0754083A1 Process for separating material from mixture using displacement chromatography |
| 01/15/1997 | EP0667874B1 Insoluble, slightly-swelling polymers with amino groups, process for making them and their use |
| 01/15/1997 | CN1140148A Method for making superhigh purity yttrium oxide |
| 01/14/1997 | US5593576 Chromatography |
| 01/14/1997 | CA2014628C Spent alkylation acid treatment process |
| 01/09/1997 | WO1997000770A1 Composite particulate material and process for preparing same |
| 01/02/1997 | EP0750587A1 Crystalline borophosphates, their production and use |
| 12/25/1996 | CN1138847A Method for cleaning contaminated water |
| 12/24/1996 | US5587084 Adsorbing petroleum based pollutants from air and water |
| 12/19/1996 | WO1996040619A1 Process for preparing amides of n-alkyl polyhydroxyalkyl amines |
| 12/19/1996 | CA2223981A1 Process for preparing amides of n-alkyl polyhydroxyalkyl amines |
| 12/17/1996 | US5585408 Crosslinked seeded copolymer beads and process of manufacture |
| 12/12/1996 | WO1996039358A1 Point-of-use ammonia purification for electronic component manufacture |
| 12/12/1996 | WO1996039263A1 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing |
| 12/12/1996 | WO1996039237A1 On-site generation of ultra-high-purity buffered hf for semiconductor processing |
| 12/10/1996 | US5583162 Polymeric microbeads and method of preparation |
| 12/10/1996 | US5582737 Ion exchange and regeneration process for separation and removal of iron (III) ions from aqueous sulfuric acid metal ion-containing solutions |
| 12/04/1996 | CN1136980A Mixed-cation adsorbent production with single pass ion exchange |
| 12/03/1996 | US5580952 Treating acidic bidentate organic phosphonate metal complexing agent with aqueous alcohol(or ketone) solution conaining base to form salt, then mixing with absorbing resin |
| 11/21/1996 | WO1996036435A1 Composition of matter |
| 11/21/1996 | CA2221612A1 Composition of matter |
| 11/20/1996 | CN1033312C Aluminosilicates |
| 11/19/1996 | CA2072821C Method of preparing metal element adsorbent and method of adsorbing and separating metal element using the same |
| 11/06/1996 | EP0703872A4 Kaolin derivatives |
| 10/31/1996 | WO1996033815A1 Process for separating multivalent metal ions from autodeposition compositions |
| 10/31/1996 | CA2217699A1 Process for separating multivalent metal ions from autodeposition compositions |
| 10/30/1996 | EP0696268A4 Ethylene glycol recovery process |
| 10/16/1996 | EP0737098A1 Adsorption material and method |
| 10/16/1996 | CN1133204A Regeneration method for lost activity sulfourylation group organic polymer ion exchange resin bed |
| 10/10/1996 | WO1996031456A1 Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process |
| 10/09/1996 | EP0736492A2 Method of deodorizing ion-exchanged purified water |
| 10/09/1996 | EP0735987A1 Method for cleaning contaminated water |
| 10/09/1996 | EP0639113B1 Environmentally acceptable method of using acid waste water |
| 10/02/1996 | EP0734410A1 Method for making reinforced ion exchange membranes |
| 10/02/1996 | EP0652934B1 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 10/01/1996 | US5561168 Iodide removal process |
| 10/01/1996 | US5561097 Method of controlling density of ligand coupled onto supports and products produced therefrom |
| 10/01/1996 | US5560829 Use of aluminosilicates of the zeolite p type as low temperature calcium binders |
| 09/25/1996 | EP0733403A1 A method of producing bodies formed of adducts of amines and acidic metal salts |
| 09/19/1996 | WO1996028251A1 Polymer sorbent for ion recovery processes |
| 09/19/1996 | DE19509575A1 Working up waste mixt. to separate zinc and chromium fractions |
| 09/19/1996 | CA2217866A1 Polymer sorbent for ion recovery processes |
| 09/12/1996 | WO1996027793A1 Apparatus/method for electrochemically modifying chromatographic material |
| 09/12/1996 | DE19509821C1 Removing phenol(s) and other organic cpds. from waste water, esp. in prodn. of olefin(s) |