Patents
Patents for B01J 20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof (48,616)
09/1991
09/05/1991WO1991012886A1 Immobilized polyethylene oxide star molecules for bioapplications
09/04/1991EP0444166A1 Disposable oxide carrier for scavenging hydrogen sulfide.
09/04/1991CN1054256A Controlled pore composite polytetrafluoroe-thylene article and method therefor
09/03/1991US5045535 Affinity chromatography, immunoassay, cellulose
09/03/1991US5045522 Absorption composition comprising zinc titanate for removal of hydrogen sulfide from fluid streams
09/03/1991US5045515 Ion exchanged clinoptilolites, separation of carbon dioxide and water from hydrocarbon streams
09/03/1991US5045295 Improved physical strength
09/03/1991US5045210 Synthetic Polymer Modified Polysaccharide, Ion Exchange Resins
09/03/1991US5045203 Separation of protein antigens of Bordetella bacteria by affinity chromatography
09/03/1991US5045201 Glass microbeads for biochemical separation of material from a fluid medium
09/03/1991CA1288355C .beta. -MICROGLOBULIN ADSORBENT
08/1991
08/29/1991WO1991012885A1 Selective adsorbent for ammonuim ion and ammonia and preparation thereof
08/29/1991DE4104513A1 Regeneration method for adsorbent carbon - by electrical heating of carbon material which has been removed from its locating unit and pressed into shapes or fibres
08/29/1991CA2053291A1 Ammonium ion-and ammonia-selective adsorbent and process for preparation of same
08/28/1991EP0443860A2 Method for preparing liquid chromatograph packing material, and material produced thereby
08/28/1991EP0443853A2 Controlled pore cmposite polytetrafluoroethylene article and method therefor
08/28/1991EP0443734A1 Coated zirconium oxide fibers
08/28/1991EP0443539A2 Process for the preparation of gallosilicates and their use for the preparation of catalysts and absorbents
08/28/1991EP0442977A1 Perfusive chromatography
08/28/1991EP0442951A1 Precipitant or flocculant for treatment of waste water and process involving their use
08/28/1991EP0442879A1 Synthesis of a crystalline molecular sieve
08/28/1991CN1013663B Process for calcium-phosphate type hydroxyapatite of chromatographic separation
08/28/1991CN1013644B Deoxidizing agent and its use
08/28/1991CN1013642B Method for scrubbing pollutants from exhaust gas stream
08/27/1991US5043407 Crosslinked acrylic polymer
08/27/1991US5043310 Mixing, molding, drying with polysaccharides, or glucans, such as curdlan; adsorbers for acetone
08/27/1991US5043278 Physiologically-active substance fixed to a thin fiber carrier with an alkylene oxide chain
08/27/1991US5043062 High performance affinity chromatography column comprising non-porous, nondisperse polymeric packing material
08/27/1991CA1288057C Cross flow microfilter
08/27/1991CA1288046C Process for the separation of antifactor viii:c antibodies, more particularly usable for the purification of the blood plasma of a type a hemophiliac
08/24/1991WO1991000142A1 Process and apparatus for producing modified cellulose pearls with microporous structure and high adsorptive surface
08/24/1991CA2035295A1 Controlled pore composite polytetrafluoroethylene article and method therefor
08/22/1991WO1991012076A1 Composition having air cleaning power and preparation thereof
08/21/1991EP0442503A1 Process for regeneration of adsorbents
08/21/1991EP0442181A1 Separation of hydroxy paraffinic dicarboxylic acids from olefinic dicarboxylic acids
08/20/1991US5041410 Method of processing peanut hulls
08/20/1991US5041226 Separating with an agent comprising aliphatic ester of polysaccharide
08/20/1991US5041146 Filter apparatus
08/19/1991CA2010314A1 Process and catalyst for hydrochlorination of hydrocarbons
08/14/1991EP0441660A1 Affinity separation with activated polyamide microporous membranes
08/14/1991EP0441512A2 Oil- absorbent polymer and use therefor
08/14/1991EP0441111A1 Particulate material
08/14/1991EP0407560A4 Chromatography on a continuous polymer
08/14/1991DE4003765A1 Protective material for wind and rain - in which elastic plastic membrane bonded to adsorbing particles and covered with fabric is impervious to water but permeable to water vapour
08/14/1991CN1053795A Preparation method of adhesive flocculant
08/13/1991US5039651 Decomposing wood chips, coconut shells with zinc chloride; calcining, activating with gas; adsorbing butane
08/13/1991US5039641 Process for modification of a molecular sieve
08/13/1991US5039419 Sulfur-containing hydrocarbon compounds and process of using same in recovering and concentrating desired ions from solutions thereof
08/13/1991US5039408 Fluoroapatite, calcium phosphate-based
08/13/1991CA1287615C Packing material for liquid chromatography
08/13/1991CA1287612C Layered metal chalcogenides containing interlayer chalcogenides and their synthesis
08/13/1991CA1287611C Layered metal oxides containing interlayer oxides and their synthesis
08/13/1991CA1287474C Controlled crystal form of aluminum hydroxide
08/13/1991CA1287473C Aluminum hydroxide
08/08/1991WO1991011711A1 Chromatographic packing and preparation thereof
08/08/1991WO1991011390A2 Synthetic porous crystalline material its synthesis and use
08/08/1991DE4106516A1 Homogeneous finely disperse solid prodn. from suspension - by reaction with alkaline earth oxide, aluminium alcoholate or silicate ester then complete hydration
08/08/1991CA2035631A1 Particulate material
08/07/1991EP0439866A1 Product and method for separating contaminants from polluted water
08/07/1991EP0439585A1 Immobilisation of ligands by radio-derivatized polymers.
08/07/1991CN1053564A Dry gravitational stratification for separating and refining diatomite
08/07/1991CN1053562A Absorbent-type filter aid made up of diatomite
08/06/1991US5037796 Process for producing hydrated and cured product of lime-gypsum-coal ash mixture
08/06/1991US5037795 For high efficiency separation of materials
08/06/1991US5037787 For catalytic hydrogenation of unsaturated edible oils
08/06/1991US5037649 Method for treatment of HIV-infected patients
08/06/1991US5037624 Composition, apparatus, and process, for sorption of gaseous compounds of group II-VII elements
08/06/1991US5037543 Controlled particle size
08/06/1991US5037485 Method of cleaning surfaces
08/05/1991CA2009332A1 Cyclic adsorption/desorption purification
08/01/1991DE4002161A1 Extracting oils and fats - from exhausted adsorbent with supercritical carbon di:oxide
07/1991
07/31/1991EP0439373A1 Low density agglomerate utilizing a carbohydrate binder
07/31/1991EP0439318A2 Doped sol-gel glasses for obtaining chemical interactions
07/31/1991EP0439247A1 Supports for gas chromatography comprising aggregates of finely divided carbon particles and process for preparing the same
07/31/1991EP0439005A1 Activated carbon fiber structure and process for producing the same
07/31/1991EP0438402A1 Panel of separate peptides
07/30/1991US5035804 Oil spill water treatment
07/30/1991US5035803 High yield water-soluble polymer silica separation resins
07/30/1991CA2035216A1 Oil-absorbent polymer and use therefor
07/30/1991CA1287037C Compositions and method for control and clean-up of hazardous organic spills
07/26/1991WO1991011241A1 Coated media for chromatography
07/25/1991WO1991010507A1 Dialkoxyphosphorus compounds bonded to carriers, process for preparing them and their use
07/25/1991WO1991010505A1 LAYERED DOUBLE HYDROXIDE SORBENTS FOR THE REMOVAL OF SOx FROM FLUE GAS AND OTHER GAS STREAMS
07/24/1991WO1991011247A1 Filter material for motor vehicles
07/24/1991EP0438113A1 Absorbent fibrous structure
07/24/1991EP0438036A2 Method for determining the end of useful life of an inert gas purifier and apparatus therefor
07/24/1991EP0437989A1 Zeolite of the levyne type and method for its preparation
07/24/1991EP0437912A1 Method for producing dual zone materials by use of an organosilane mixture
07/24/1991EP0437911A1 Method for producing dual zone materials by catalyzed halosilylation
07/24/1991EP0437881A1 Method for pretreatment of active carbon
07/24/1991EP0437875A1 Metalchelating, hydrophilic polymer
07/24/1991CA2049978A1 Filter material for motor vehicles
07/23/1991US5034055 Process for the enhanced production of silver from gold and silver bearing ore
07/23/1991US5033465 Bonded adsorbent structures and respirators incorporating same
07/18/1991DE4001098A1 Traegergebundene dialkoxyphosphorverbindungen, verfahren zu ihrer herstellung und ihre verwendung Traegergebundene dialkoxyphosphorus compounds, process for their production and their use
07/17/1991WO1991010508A1 Method for regenerating particulate adsorbents
07/17/1991EP0437221A2 Process for emission free desorption
07/17/1991EP0437132A1 Pillared clays having large interlayer spacing and process for their preparation
07/17/1991EP0437027A1 Selective adsorption of nitrogen on magnesium-containing clinoptilolite
07/17/1991EP0436722A1 Polysaccharide derivatives and separating agent