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)
01/1999
01/20/1999CN1041694C Method for expected ions thickened and separated from multi-ion source solution and used solid compound
01/12/1999US5858081 Kaolin derivatives
12/1998
12/30/1998EP0823866A4 Process for separating multivalent metal ions from autodeposition compositions
12/30/1998EP0683761B1 A novel process for the production of high purity and ultrapure bisphenol-a
12/23/1998CN1202484A Purifying method for dimethylsulfoxide (DMSO)
12/23/1998CN1202385A Method for trapping and concentrating Li+ from Li+ containing dilution solution in ion exchanging system
12/22/1998US5851400 Method for eliminating the displacer in displacement chromatography of proteins
12/22/1998US5851372 Process for demineralizing a liquid containing organic matter and salts in solution
12/17/1998WO1998056504A1 METHOD FOR THE DEIONIZATION OF SUBSTANCES THAT ARE NOT STABLE AT ACIDIC pH
12/16/1998CN1201719A Technology of activating carbon-fluorine apatite to remove toxic metal ions from waste water
12/09/1998EP0882708A1 Process for the purification of dimethylsulphoxide (DMSO)
12/09/1998CN1201030A Method for purifying dimethyl sulfoxide (DMSO)
12/08/1998US5847072 Removal of lithium from polymer cements
12/08/1998CA2075703C Dual chamber water filter
12/03/1998WO1998054088A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange with recirculation
12/03/1998WO1998054087A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange with an anionic-cationic-anionic-cationic sequence
12/03/1998WO1998054086A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange in beds with defined h/d ratio
12/03/1998WO1998054085A1 Method for preparing an ultrapure hydrogen peroxide solution by ion exchange in the presence of ion acetate
12/03/1998WO1998053911A1 Perfluorinated ion-exchange microcomposite catalysts modified with lewis acid
11/1998
11/25/1998EP0879085A1 Method and apparatus for minimizing wastewater discharge
11/24/1998CA2093303C Aluminosilicates
11/18/1998EP0878466A1 Process for the purification de dimethylsulphoxide (DMSO=
11/18/1998EP0878454A1 Process for purifying quasi-anhydrous organic liquids
11/17/1998US5837826 Protein adsorption by very dense porous zirconium oxide particles in expanded beds
11/15/1998CA2235789A1 Dimethylsulfoxide (dmso) purification process
11/15/1998CA2235770A1 Dimethylsulfoxide (dmso) purification process
11/12/1998WO1998050307A1 Actinide-containing molecular sieves
11/11/1998EP0662099B1 Heterogeneous membrane and method
11/11/1998CN1040664C Method for trapping and concentrating LI from thin solution containing LI in ion-exchange system
11/10/1998US5834524 Process for the preparation of crosslinked polymers
11/10/1998US5833844 Thermally-driven ion-exchange process for lithium recovery
11/04/1998CN1198102A On-site generation of ultra-high-purity buffered HF for semiconductor processing
11/03/1998CA2081835C Removal of mercury from waste streams
10/1998
10/28/1998CN1196976A Method of manufacture of molecular sieves
10/22/1998WO1998046350A1 Sorption agent containing nucleotide, for affinity chromatography
10/21/1998EP0789608A4 Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
10/15/1998DE19715331A1 Nukleotidhaltiges Sorbens für die Affinitätschromatographie Nukleotidhaltiges sorbent for affinity chromatography
10/08/1998WO1998044344A1 Liquid chromatography and column packing material
10/07/1998EP0868444A1 Process for the preparation of very acidic cation exchangers
10/07/1998EP0868212A2 Process for the preparation of free-flowing very acidic cation exchangers
10/06/1998US5817238 Column chromatography, acidic cation exchange resin
10/01/1998WO1998042622A1 Novel hybrid zeolite-silica compositions
09/1998
09/29/1998US5814224 Method for complex processing of sea-water
09/29/1998US5814209 Method for ecological utilization of acid effluents of fuller's earth
09/17/1998WO1998040145A1 Electrochemically regenerated ion neutralization and concentration devices and systems
09/17/1998WO1998040144A1 Bifunctional crown ether-based cation-exchange stationary phase for liquid chromatography
09/16/1998EP0655952B1 Composite ion-exchange material, preparation and use thereof
09/09/1998EP0863109A1 Process and device for ion exchange in zeolites
09/03/1998WO1998037940A1 Method of removing impurities from polymers utilizing facilitated ion exchange
09/02/1998EP0647160B1 Ion exchange resin
09/01/1998US5801279 Method for removing iodine compounds contained in organic medium
09/01/1998US5800714 Deactivating a water soluble chain transfer agent
08/1998
08/26/1998EP0835168A4 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing
08/26/1998EP0758261B1 Chemically modified solid phase extraction particles and articles containing same
08/19/1998EP0635145B1 Photoresists having a low level of metal ions
08/12/1998EP0857514A2 Method of preventing corrosion in a water system
08/12/1998CN1190360A On-site generation of ultra-high-purity buffered-HF for semiconductor processing
08/11/1998US5792441 Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream
08/05/1998EP0855992A1 Partially crystalline layered sodium titanate
08/04/1998US5789496 Contacting with phenol-formaldehyde polymers for salt formation and as ligands
07/1998
07/30/1998WO1998032774A1 Manufacture of cation exchange resins by pressurized sulfonation
07/28/1998US5785857 Mobile process for the recovery of spent heat transfer fluids
07/23/1998WO1998032011A1 Acid or base generator and method of use
07/22/1998CN1188444A Composite particulate material and process for preparing same
07/21/1998US5783608 Heat bonded fabics from sheath-core fibers exposed to ionizing radiation and grafted with polymerizable monomer
07/16/1998WO1998030314A1 Ion chromatographic method and apparatus using ion reflux
07/14/1998US5780593 Method of isolating biomolecules by ion exchange
07/08/1998EP0852071A2 Functionalized copoly(m-phenylene)-based solid polymer electrolytes
07/07/1998US5776340 Apparatus for minimizing wastewater discharge
07/01/1998EP0850877A1 Method of manufacture of molecular sieves
06/1998
06/23/1998CA2016561C Purification process for gold-bearing iodine lixiviant
06/17/1998EP0531364B1 Large-pored molecular sieves containing at least one octahedral site and tetrahedral sites of at least one type
06/16/1998US5766476 First stage with aeration tank having anoxic environment, second stage operating under oxidizing conditons, either or both tanks containing an ion exchange resin
06/10/1998EP0846495A2 Ion exchange material based on polysaccharide and its preparation process
06/10/1998CN1184004A Mixed bed ion exchange resin system and method of preparation
06/09/1998US5762890 Zirconium and hafnium separation in chloride solutions using continuous ion exchange chromatography
06/04/1998WO1998023375A1 APPARATUS FOR CHANGING pH OF SOLUTIONS
06/03/1998CN1183761A Recovery of acetic acid from dilute aqueous streams formed during carbonylation process
06/02/1998US5760097 Methods of preparing polymeric microbeds
06/02/1998US5759405 Electrolysis and elution
06/02/1998US5759404 Selective partition
05/1998
05/28/1998WO1998022217A1 Polymeric material for water treatment, cation-exchange resin, and anion-exchange resin
05/27/1998EP0844024A2 Mixed bed ion exchange resin system and method of preparation
05/26/1998CA2055733C Ion exchange fibers and method for manufacturing the same
05/20/1998CN1182379A Process for separating multivalent metal ions from autodeposition compositions
05/12/1998US5750032 Removal of lithium from polymer cements
05/06/1998EP0781255A4 Water treatment process
05/05/1998US5747403 Organophilic, quaternary phosphonium ion-exchanged smectite clays
04/1998
04/30/1998WO1998017586A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange
04/30/1998CA2269331A1 Recycle of water from polyvinyl chloride polymerization by treatment with a cation exchange
04/29/1998EP0838263A1 Process for manufacturing reduced bleed cation exchangers
04/23/1998WO1998016581A1 Compositions containing particles of highly fluorinated ion exchange polymer
04/23/1998WO1998016467A1 Porous inorganic composite and method for separating metal elements using the same
04/23/1998WO1998016462A1 Treatment of chlorine dioxide generator effluent and feed streams with fixed-resin bed
04/23/1998CA2269081A1 Porous inorganic composite and method for separating metal elements using the same
04/23/1998CA2268629A1 Compositions containing particles of highly fluorinated ion exchange polymer
04/22/1998EP0836553A1 Composite particulate material and process for preparing same
04/15/1998EP0835277A1 Polyarylene sulphides with polymer-bound phosphonium salts and process for producing them
04/15/1998EP0835168A1 On-site manufacture of ultra-high-purity nitric acid for semiconductor processing
04/08/1998EP0834350A1 Endotoxin adsorption system
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