Patent classifications
B01J20/28069
SPIKE PARTICLES, SUPERFICIALLY POROUS SPIKE PARTICLES, CHROMATOGRAPHIC SEPARATION DEVICES, AND PROCESSES FOR FORMING SPIKE PARTICLES
Spike particles are disclosed including a core and a plurality of spikes attached to and extending from a core surface. The core may be nonporous, superficially porous, or porous. The plurality of spikes may be nonporous or superficially porous. Superficially porous spike particles are disclosed including a porous spike particle shell disposed over a nonporous spike particle. A method for forming the spike particles is disclosed including mixing a dispersed aqueous phase having a plurality of core particles, a water emulsion drop stabilizer, and a catalyst with a continuous oil phase having an organic solvent, polyvinylpyrrolidone, and a silane precursor to form a water-in-oil emulsion system, which is reacted without stirring to form the plurality of chromatographic spike particles. A chromatographic separation device is disclosed including the spike particles, which are randomly packed in the chromatographic separation device and have an external porosity ranging from about 0.4 to about 0.9.
Evaporative emission control articles including activated carbon
A coated substrate (2a, 2b) adapted for hydrocarbon adsorption having at least one surface, and a coating on the at least one surface, the coating comprising particulate carbon and a binder, wherein the particulate carbon has a BET surface area of at least about 1300 m.sup.2/g; and at least one of: (i) a butane affinity of greater than 60% at 5% butane; (ii) a butane affinity of greater than 35% at 0.5% butane; (iii) a micropore volume greater than about 0.2 ml/g and a mesopore volume greater than about 0.5 ml/g. A bleed emission scrubber (1) and an evaporative emission control canister system (30) comprising the coated substrate (2a, 2b) are provided. They can control evaporative hydrocarbon emissions and may provide low diurnal breathing loss (DBL) emissions even under a low purge condition.
Methods for reducing contamination in a biological substance
Provided herein are materials and methods of reducing contamination in a biological substance or treating contamination in a subject by one or more toxins comprising contacting the biological substance with an effective amount of a sorbent capable of sorbing the toxin, wherein the sorbent comprises a plurality of pores ranging from 50 Å to 40,000 Å with a pore volume of 0.5 cc/g to 5.0 cc/g and a size of 0.05 mm to 2 cm and sorbing the toxin. Also provided are kits to reduce contamination by one or more toxins in a biological substance comprising a sorbent capable of sorbing a toxin, wherein the sorbent comprises a plurality of pores ranging from 50 Å to 40,000 Å with a pore volume of 0.5 cc/g to 5.0 cc/g and a size of 0.05 mm to 2 cm and a vessel to store said sorbent when not in use together with packaging for same.
Method for purification of liquid compositions containing at least one sphingolipid
The present invention relates to a method for purification of liquid compositions containing at least one sphingolipid and the use of a specific clay mineral for the purification of such liquid compositions.
TUNABLE, RAPID UPTAKE, AMINOPOLYMER AEROGEL SORBENT FOR DIRECT AIR CAPTURE OF CO2
A primary amine polymer aerogel comprising greater than 5 wt. % of primary amine monomers covalently bound to cross-linking monomers, wherein the primary amine monomers are selected from vinyl amine. A secondary amine polymer aerogel comprising secondary amine monomers covalently bound to cross-linking monomers, the secondary amine monomers being a result of substituting a hydrogen atom from a primary amine polymer aerogel, the primary amine polymer aerogel comprising vinyl amine monomers covalently bound to the cross-linking monomers. A tertiary amine polymer aerogel comprising tertiary amine monomers covalently bound to cross-linking monomers, the tertiary amine monomers being a result of substituting hydrogen atoms from a primary amine polymer aerogel, the primary amine polymer aerogel comprising vinyl amine monomers covalently bound to the cross-linking monomers.
Advanced porous carbonaceous materials and methods to prepare them
The present invention concerns porous carbonaceous particles having pores including micropores and macropores, having a mean diameter, determined by laser diffraction, ranging from 15 to 100 μm and porous carbonaceous monoliths comprising aggregates of said carbonaceous particles.
Hydroxyapatite composite for use in removal of contaminants from effluents and methods of making
A composite comprising a hydroxyapatite and at least one additive which is present during hydroxyapatite synthesis. The additive may be embedded or incorporated into or coated onto the hydroxyapatite. The additive preferably increases the hydroxyapatite porosity, e.g., providing a higher pore volume and/or BET surface area than a hydroxyapatite material without additive. The additive preferably comprises an activated carbon, chitosan, hopcalite, clays, zeolites, sulfur, and/or a metal such as Al, Sn, Ti, Fe, Cu, Zn, Ni, Cu, Zr, La, Ce, in the form of metal, salt, oxide, oxyhydroxide, and/or hydroxide. The hydroxyapatite may be calcium-deficient. The composite is in the form of particles having a D50 of at least 20 μm, a BET surface area of at least 120 m.sup.2/g; and/or a total pore volume of at least 0.3 cm.sup.3/g. An adsorbent material comprising a composite or a blend of composite with a hydroxyapatite without additive, and its use for removal of contaminants such as Hg, Se, As, and/or B from an effluent.
Systems And Methods For Gas Storage And Transportation
Methods of contacting a fluid comprising a light hydrocarbon with a metal-organic framework adsorbent having bis(pyrazolyl) ethanediimine ligands and internal pores; adsorbing the fluid in at least a portion of the internal pores of the metal-organic framework thereby creating an adsorbed fluid; storing the adsorbed fluid in the internal pores of the metal-organic framework; and releasing the adsorbed fluid from the internal pores of the metal-organic framework, wherein the metal-organic framework adsorbent undertakes a reversible phase transition upon adsorbing the fluid. Systems of a metal-organic framework having bis(pyrazolyl) ethanediimine ligands and internal pores, wherein the metal-organic framework undertakes a reversible phase transition upon adsorption and desorption of a light hydrocarbon fluid; wherein the fluid is stored in the internal pores of the metal-organic framework.
Covalent-Organic Framework Materials and Methods of Making Thereof
The present invention provides a covalent-organic framework (COF) body, populations of such bodies, a method for manufacturing a covalent-organic framework (COF) body, and (a) a gas storage system or a gas separation system comprising a gas storage vessel and a population of such COF bodies. The COF body comprises a plurality of primary COF particles, some or all of the primary COF particles being agglomerated as COF agglomerates. The average diameter of the primary COF particles is between nm and 120 nm, and the average diameter of the agglomerates is larger than the average diameter of the primary COF particles and between 15 nm and 250 nm. By careful control over particle size distribution during the formation of the COF material, it is possible (b) to form COF materials into high bulk density shapes and forms which are industrially useful and practical without losing sorbent performance.
Chromatography media and devices
Chromatography devices contain chromatography media and methods of making and methods of using chromatography devices. Chromatography devices enable a more efficient, productive and/or environmentally friendly chromatographic operation due to one or more of the following advantages over conventional chromatographic operations: elimination of a device packing step by the user; elimination of clean-in-place (CIP) steps; elimination of clean-in-place (CIP) steps utilizing sodium hydroxide solution; elimination of any validation steps by the user; and use of a chromatography device comprising biodegradable material. The chromatography media includes porous inorganic particles having a functionalized surface and having a median pore size of at least about 300 Angstroms (A), or at least about 300 A up to about 3000 A. The inorganic particles may have a BET surface area of at least about 20 m2/g, or at least about 25 m2/g, or about 30 m2/g, up to about 2000 m2/g.