| Patents for B01J 20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof (48,616) |
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| 02/12/1991 | US4992172 Polyaldehyde activation microporous membrane |
| 02/12/1991 | US4992084 Activated charcoal filter layer for gas masks |
| 02/09/1991 | CA2021760A1 Water absorption capacity of crosslinked, water-swellable polymers |
| 02/07/1991 | DE3925693A1 Adsorption filter material esp. for air purificn. - has larger adsorber particles interspersed with smaller particles of lower adsorptivity, attached to matrix with adhesive |
| 02/07/1991 | DE3924565A1 Prepn. of zeolite f from power plant waste - with alkali under defined conditions of molar ratios, temp. and duration |
| 02/07/1991 | DE3924564A1 Prepn. of zeolite from power plant waste - with alkali under defined conditions of molar ratios, temp, and duration |
| 02/06/1991 | EP0411206A1 Deodorant and deodorizing method |
| 02/06/1991 | EP0411053A1 Method for intercalating organic-swelled layered metal chalcogenide with polymer chalcogenide |
| 02/06/1991 | CN1048988A Geometric charcoal filtering |
| 02/05/1991 | US4990338 Antimicrobial superabsorbent compositions and methods |
| 02/05/1991 | US4990318 Selective removal of hydrogen sulfide over a nickel-promoted absorbing composition |
| 01/31/1991 | DE3924341A1 Air purifying filter for encapsulated electronic equipment - has particle filtering layer and adsorbent filter layer via which all air entering equipment passes |
| 01/29/1991 | US4988786 Packings for liquid chromatography separation for biochemistry, medicine or pharmacology |
| 01/29/1991 | US4988569 Complex phosphate adsorbent of MgO-TiO2 |
| 01/29/1991 | US4988568 Crosslinked copolymers of unsaturated amides, esters, and acids; narrow particle size distribution |
| 01/29/1991 | US4988505 Deodorizer |
| 01/29/1991 | CA1279641C Lignin having nitrogen and sulfur |
| 01/25/1991 | WO1991001286A1 Selective sorption of dialkylated multinuclear aromatic compounds |
| 01/25/1991 | CA2064016A1 Selective sorption of dialkylated multinuclear aromatic compounds |
| 01/24/1991 | WO1991000762A1 Perfusive chromatography |
| 01/23/1991 | EP0409814A1 Variant proteins and polypeptides possessing enhanced affinity for immobilized-metal affinity matrices |
| 01/23/1991 | EP0409135A1 Improved chabazite for gas separation |
| 01/23/1991 | EP0408585A1 Immobilized artificial membranes |
| 01/23/1991 | CN1011293B Water absorption controlled dehydrating device |
| 01/22/1991 | US4987116 Method of preparing a coarse-pored formed carbon |
| 01/22/1991 | US4987068 Porous inorganic support spheres which can be cleaned of surface biomass under fluidized bed conditions |
| 01/22/1991 | US4986908 High performance liquid chromatography |
| 01/22/1991 | US4986835 Process for separating and recovering carbonic acid gas from gas mixture by adsorption |
| 01/21/1991 | WO1991001356A1 Method for cleaning up liquids, absorbent pellets for use in such method, and method for making such pellets |
| 01/21/1991 | CA2064251A1 Method for cleaning up liquids, absorbent pellets for use in such method, and method for making such pellets |
| 01/16/1991 | EP0408433A1 Ampholytic hydrophilic polymers, process for their preparation and their use as absorbants |
| 01/16/1991 | EP0408411A1 Process for preparing milk products with reduced sterol content, in particular cholesterol |
| 01/16/1991 | EP0408292A2 Vinyl copolymer and adsorbent for microorganisms |
| 01/16/1991 | EP0408185A2 Recovery of gold from acidic solutions |
| 01/16/1991 | EP0408146A2 Method for the purification of therapeutically active recombinant acidic fibroblast growth factor |
| 01/16/1991 | EP0407665A1 Affinity membranes having pendant groups and processes for the preparation and use thereof |
| 01/16/1991 | EP0407560A1 Chromatography on a continuous polymer. |
| 01/16/1991 | EP0407412A1 Substituted cyclodextrins and process for chromatographic separation of chiral organic compounds. |
| 01/15/1991 | US4985518 Process for preparing water-absorbing resins |
| 01/15/1991 | US4985514 Method for production of water absorbent resin |
| 01/15/1991 | US4985380 Method of making thin refractory flakes |
| 01/15/1991 | US4985210 Exhaust gas purifying apparatus for automobile |
| 01/15/1991 | US4985144 Purification of protein antigens |
| 01/14/1991 | CA2020720A1 Method for the purification of therapeutically active recombinant acidic fibroblast growth factor |
| 01/13/1991 | CA2020067A1 Process for preparing dairy products with a low content of sterols, particularly of cholesterol |
| 01/10/1991 | WO1991000145A1 Anion exchanger |
| 01/09/1991 | EP0406846A2 Environmentally safe method for the removal of residual polyethers from aqueous waste streams |
| 01/09/1991 | EP0406474A2 Synthetic crystalline aluminosilicate and process for its preparation |
| 01/08/1991 | US4983566 Surface-modified adsorbent comprising metal oxide/hydroxide particles reacted with one or more perfluorinated organic acids |
| 01/08/1991 | US4983563 Consolidation, heat treatment, roasting; catalysts and supports |
| 01/08/1991 | US4983367 Absorption by agglomerants containing compounds of zinc, copper and other elements |
| 01/08/1991 | US4983363 Apparatus for purifying arsine, phosphine, ammonia, and inert gases to remove Lewis acid and oxidant impurities therefrom |
| 01/08/1991 | US4983192 Activated carbon particles fused to fibers of a pile fabric |
| 01/06/1991 | CA2020452A1 Environmentally safe method for the removal of residual polyethers from aqueous waste streams |
| 01/03/1991 | CA2002012A1 Method and apparatus for absorbing petroleum based products |
| 01/02/1991 | EP0405404A1 Chromium-free impregnated activated carbon for adsorption of toxic gases and/or vapors |
| 01/02/1991 | CN1011039B Absorbent resin with excellent stability |
| 01/02/1991 | CA1278561C Lipoprotein adsorbent and apparatus for removing lipoproteins using the same |
| 01/01/1991 | US4982048 High octane gasoline |
| 01/01/1991 | US4981961 Chemically-stable chromatography adsorber; modifying nucleophilic polymers with pyridine bases |
| 01/01/1991 | US4981515 Fireproof |
| 01/01/1991 | US4981501 Adsorption filter with high air permeability |
| 12/31/1990 | WO1991000297A1 Improved cellulose chromatography support |
| 12/27/1990 | WO1990015777A1 Small sized alpha alumina particles and platelets |
| 12/27/1990 | EP0403700A1 Polyethyleneimine matrixes for affinity chromatography |
| 12/27/1990 | CA1278280C Throwaway liquid absorbing article |
| 12/27/1990 | CA1278229C Litter box liner |
| 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 |
| 12/20/1990 | DE3919567A1 Synthetic activated charcoal prepn. - comprising application of fine-pored carbon black in a large-pored inert matrix |
| 12/20/1990 | DE3918717A1 Active charcoal like material prodn. from activated sludge - by pyrolysis in absence of air, used to improve performance of waste water purifiers |
| 12/19/1990 | EP0403084A2 Zeolite agglomeration process and product |
| 12/18/1990 | US4978650 Desensitizing activated carbon sorbents to the effects of humidity |
| 12/18/1990 | US4978649 Porous carbonaceous material |
| 12/18/1990 | US4978647 Gel bead composition for metal adsorption |
| 12/18/1990 | CA1277926C Drying process using chabazite-type adsorbents |
| 12/15/1990 | WO1990015610A1 A composition for removing or inactivating harmful components in blood or other extracellular body fluids |
| 12/15/1990 | CA2058442A1 Composition for removing or inactivating harmful components in blood or other extracellular body fluids |
| 12/13/1990 | WO1990014885A1 Granulated inorganic sorbent and method of obtaining it |
| 12/13/1990 | WO1990014813A1 Nonwoven material, in particular composite nonwoven material |
| 12/13/1990 | WO1990011390A3 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations |
| 12/12/1990 | EP0401789A1 Selective removal of hydrogen sulfide over a zinc oxide and diatomite absorbing composition |
| 12/12/1990 | EP0401788A1 Selective removal of hydrogen sulfide over a nickel-promoted absorbing composition |
| 12/12/1990 | EP0401285A1 Carbon dioxide removal using aminated carbon molecular sieves. |
| 12/12/1990 | EP0401248A1 Affinity matrices of modified polysaccharide supports |
| 12/12/1990 | CN1010746B Assemblage of hydroxyl apatite particles and liquid chromatography column using the same |
| 12/11/1990 | US4977192 Polymer composition charged with powdered mineral material with a high capacity of water absorption |
| 12/11/1990 | US4977123 Preparation of extrusions of bulk mixed oxide compounds with high macroporosity and mechanical strength |
| 12/11/1990 | CA1277658C Anionically modified polysaccharides, process for their preparation and the use thereof |
| 12/11/1990 | CA1277577C Adsorptive fiber sheet |
| 12/09/1990 | WO1990014886A1 Chemical products |
| 12/07/1990 | CA2014248A1 Selective removal of hydrogen sulfide over a nickel-promoted absorbing composition |
| 12/06/1990 | DE3917791A1 Vliesmaterial, insbesondere verbundvliesmaterial Non-woven material, particularly composite nonwoven material |
| 12/05/1990 | EP0400961A2 Zeolites |
| 12/05/1990 | EP0400526A1 Spherical fibrous lump activated carbon and method of producing the same |
| 12/05/1990 | EP0400460A1 Moisture-absorbent compositions |
| 12/04/1990 | US4975542 Method for preparing granular porous chitosan |
| 11/30/1990 | WO1990014876A1 Purification of sulphide-containing gases |
| 11/30/1990 | CA2017760A1 Zeolites |
| 11/29/1990 | WO1990014159A1 Oil spill clean-up material |