Patents
Patents for B01J 20 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof (48,616)
05/1991
05/28/1991US5019162 Activated carbon for recovery of gold
05/28/1991US5019062 Bicomponent material
05/23/1991DE4042002A1 Carbon di:oxide removal from waste gas - by chemical reaction with porous solid basic nitrite-sodalite
05/22/1991EP0427715A1 Biocompatible, substance-specific reagents for treating physiological fluids
05/22/1991EP0203095B1 Process of preparing polyamide supports capable of reaction with antibodies and enzymes and supports produced thereby.
05/22/1991CN1051549A Adsorptive separation of para-xylene using tetralin desorbent
05/21/1991US5017735 Selective sorption of 2,6-diisopropylnaphthalene
05/21/1991US5017540 Silicon hydride surface intermediates for chemical separations apparatus
05/21/1991US5017518 Process for producing calcium phosphate ceramics having porous surface
05/21/1991US5017290 Separation agent comprising acyl- or carbamoyl-substituted polysaccharide
05/16/1991WO1991004943A3 Zeolite aggregates and catalysts
05/15/1991EP0427579A1 Mordenite type zeolithe and process for producing the same
05/15/1991EP0427462A1 Process
05/15/1991EP0426874A1 Sulfonated heat-resistant polymeric material and method of production thereof
05/15/1991EP0426857A1 Peptide and adsorbent comprising same immobilized on carrier
05/14/1991US5015576 Dissolving a water soluble matrix, mixing a water insoluble liquid cavity generating compound, forming drops, dispersion and solidification
05/14/1991US5015453 Crystalline group IVA metal-containing molecular sieve compositions
05/14/1991US5015450 Process for making calcium sulfate alpha-hemihydrate from calcium sulfate dihydrate
05/14/1991US5015449 Process for making construction grade calcium sulfate alpha-hemihydrate from moist finely divided gypsum obtained from a power plant flue gas desulfurization
05/14/1991US5015448 Particulate material suitable for selectively separating metal cations from aqueous solutions, process for its production, and use thereof
05/14/1991US5015411 Process, composition, and apparatus for purifying inert gases to remove Lewis acid and oxidant impurities therefrom
05/14/1991US5015373 High stability porous zirconium oxide spherules
05/14/1991CA2026659A1 Absorbent bubble laminates
05/14/1991CA1284022C Graded refractory cermet article
05/08/1991EP0426048A2 Production and use of crystalline hydrogen-phosphate compounds having layer structure
05/08/1991EP0425984A1 Sorption of trialkyl arsines
05/08/1991EP0425848A1 Column packing material for gel permeation chromatography, process of preparation and use thereof
05/08/1991EP0425822A1 Carbon molecular sieve
05/08/1991EP0425740A1 Adsorptive separation of para-xylene
05/08/1991CN1012561B Dual-sucking seal-storage agent for fresh-keeping, its preparing method and use thereof
05/07/1991US5013700 Water washing, acid leaching, heat treatment
05/07/1991US5013585 Method for the preparation of surface-modified silica particles
05/07/1991US5013459 Opthalmic fluid dispensing method
05/07/1991US5013382 Method of making an absorbent disposable article
05/07/1991US5013335 Process for sequestering ammonia and the odor associated therewith
05/03/1991CA2023010A1 Sorption of trialkyl arsines
05/02/1991WO1991005607A1 Process for treating a spent nickel-based absorbent
05/02/1991WO1991005606A1 Carrier and its use in nucleic acid chromatographic separation
05/02/1991EP0425104A1 Column packing material
05/02/1991EP0425102A1 Method for eluting adsorbed gold from carbon
05/02/1991EP0424698A1 Adsorbent for removing biomacromolecules, particularly LDL and endotoxines, from whole blood in extracorporeal circuit
05/02/1991EP0424672A1 Method of removing endotoxin
05/02/1991EP0424403A1 Granular adsorbant with improved ease of rinsing
05/02/1991EP0424377A1 Reduction of the ignition temperature of diesel soot
05/02/1991DE3935506A1 Removing hydrocarbon(s) from condensate water obtd. in dry cleaning - by liq.-liq. extn. followed by adsorption
05/01/1991WO1991006356A1 Method to identify analyte-binding ligands
05/01/1991CA2072637A1 Method to identify analyte-binding ligands
05/01/1991CA2002024A1 Co absorption means
04/1991
04/30/1991US5012038 Zeolitic para-xylene separation with diethyltoluene heavy desorbent
04/30/1991US5011535 Purifying aqueous lactulose solutions
04/30/1991CA1283648C Zeolite ssz-25
04/30/1991CA1283647C Layered silicates and their synthesis
04/30/1991CA1283646C Layered metal oxides containing interlayer oxides and their synthesis
04/30/1991CA1283582C Modified polymeric surfaces and process for preparing same
04/25/1991DE3935098A1 Traegermaterial und seine verwendung in einem verfahren zur chromatographischen trennung von nukleinsaeuren Traegermaterial and its use in a method for the chromatographic separation of nucleic acids
04/24/1991EP0423967A2 A method of producing granular activated carbon
04/24/1991EP0423945A1 Purifier for nuclear reactor cooling water and method of purification
04/24/1991EP0423938A1 Ligand-containing medium for chromatographic separation, process for preparing the medium, and use of the medium for isolating synthetic or natural molecules from a fluid mixture
04/24/1991EP0308409B1 Process for producing carbon molecular sieves
04/23/1991US5010184 Ionically modified agarose
04/23/1991US5010181 Chitin containing layer of chitosan
04/23/1991US5009906 Alkali metal silicate-treated diatomaceous earth
04/23/1991US5009759 Methods for producing agarose gels having variable pore sizes
04/23/1991US5009650 Absorbent structure designed for absorbing body fluids
04/23/1991CA1283395C Assemblage of hydroxyl apatite particles and liquid chromatography column using the same
04/19/1991WO1991005859A1 Polymer bead containing immobilized metal extractant
04/18/1991WO1991004788A1 Carbon molecular sieve for breaking down air into nitrogen and oxygen by the alternating pressure technique
04/18/1991WO1991004779A1 Process for the production of a semi-finished article, and uses of the article thus produced
04/18/1991DE3933441A1 Kohlenstoff-molekularsieb zur zerlegung von luft in stickstoff und sauerstoff durch druckwechseltechnik Carbon molecular sieve to dissection of air into nitrogen and oxygen pressure by changing technology
04/17/1991EP0422559A1 Rare gas purifying method
04/16/1991US5008358 Polymer compositions
04/16/1991US5008227 Acidification of attapulgite clay
04/16/1991US5008226 Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product
04/16/1991US5008224 Adsorbent for phosphorus and method for production of adsorbent for phosphorus
04/16/1991US5008220 Biological support
04/16/1991CA1283091C 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
04/16/1991CA1283090C Bonded phase of silica for solid phase extraction
04/16/1991CA1283073C Adsorbent for purification of blood coagulation factor viii and process for purification of blood coagulation factor viii using the same
04/10/1991EP0421875A1 Process for the thermal activation of zeolites by the percolation of hot gases
04/10/1991EP0421584A1 Cleanup of contaminated hydrocarbon conversion system to enable use with contaminant-sensitive catalyst
04/09/1991US5006323 Method of desulfurizing combustion gases
04/09/1991US5006287 Affinity membranes having pendant hydroxy groups and processes for the preparation and use thereof
04/09/1991US5006256 Affinity membranes having pendant hydroxy groups and processes for the preparation and use thereof
04/09/1991CA1282891C Agent for absorbing and releasing water vapor
04/09/1991CA1282770C Immobilisation supports for chemical and physical processes and methods of their manufacture
04/04/1991WO1991004096A1 Removal of mercury from fluids by contact with activated zeolite a
04/04/1991WO1991004095A1 Stable, covalently-bonded supports for chemical separation apparatus made through a hydride intermediate
04/04/1991WO1991004086A1 Filter media and use for pyrogen removal
04/04/1991DE3931749A1 Binder for absorbing hydrocarbon(s) etc. from gases, pastes, etc. - consists of particles of plastic foam, made using only mixt. of oxygen and nitrogen as blowing agent
04/03/1991EP0420248A1 Absorbent structures
04/03/1991EP0420115A1 Packing material for liquid chromatography
04/03/1991EP0419581A1 Method for intercalating organic-swelled layered metal chalcogenide with a polymeric chalcogenide by plural treatments with polymeric chalcogenide precursor
04/02/1991US5004716 Synthetic stevensite and process for preparation thereof
03/1991
03/30/1991WO1991004943A2 Zeolite aggregates and catalysts
03/30/1991CA2026249A1 Method for eluting adsorbed gold from carbon
03/30/1991CA2025487A1 Hplc avidin monomer affinity resin
03/28/1991DE4029557A1 Liq. chromatography column appts. and systems - esp. for sepn. and analysis of haemoglobin forms
03/28/1991DE3935953A1 Treating kieselguhr slurry for filter use
03/28/1991DE3935952A1 Treating kieselguhr slurry for filter use
03/27/1991EP0419358A1 Process for the preparation of disilane