A composite sorbent composition comprising a polymeric adsorbent; and an extractant having the formula (I), or hydrate in thereof, wherein X is O or S, A1 and A2 are each independently —C(O)— or —C(R′)(R″)— wherein R′, and R″ are each independently hydrogen, halogen, hydroxyl, cyano, nitro, amino, —CHO, —COOH, C1-12 alkyl, C1-4 alkoxy, C1-4 alkylamino, C1-2 haloalkyl, C1-2 haloalkoxy, C1-12 cycloalkyl, C6-12 aryl, C7-13 arylalkyl, C3-12 heteroaryl, C1-12 heteroalkyl, or C4-12 heteroarylalkyl, Z is a covalent bond, —S—, —O—, —SO2—, —SO—, —P(R)(═O)—, —NR—, -C(O)-, -C(O)NH-, —C(═N—R)—, or —C(R′)(R″)— wherein R, R′, and R″ are each independently hydrogen, halogen, hydroxyl, cyano, nitro, amino, —CHO, —COOH, —C(O)NH2, C1-12 alkyl, C1-12 alkoxy, C1-12 alkylamino, C1-4 haloalkyl, C1-4 haloalkoxy, C4-12 cycloalkyl, C6-12 aryl, C7-13 arylalkyl, C3-12 heterocycloalkyl, C3-12 heteroaryl, C1-12 heteroalkyl, or C4-12 heteroarylalkyl, and R1 and R2 are each independently hydrogen, halogen, hydroxyl, cyano, nitro, amino, or a substituted or unsubstituted monovalent C1-40 hydrocarbon.

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A metal trap for an FCC catalyst include pre-formed microspheres impregnated with a salt of calcium and/or magnesium and an organic acid salt of a rare earth element.

The present invention relates to superabsorbent polymer and a method for preparing the same. According to the method for preparing superabsorbent polymer of the present invention, superabsorbent polymer having improved rewet property and absorption speed can be provided.

An adsorbent composition, adsorbent apparatus, and gas purification process using the absorbent composition are provided for the removal of hydrogen sulfide from a gas containing at least hydrogen sulfide as an impurity. The adsorbent composition includes a combination of at least one carbon material, at least one clay material, and at least one metal oxide. In particular, the combination of carbon material(s), clay material(s) and metal oxide(s) provide for effective removal of hydrogen sulfide from a gas at a reduced cost.

A composite particle is described herein. The composite particle can contain a seed particle of an agricultural treatment material and a shell disposed on the seed particle, wherein the shell comprises a clay.

An organic light emitting display device may include a filling part filling a space between a second substrate and an organic light emitting diode, and a dam structure disposed in a non-display area and surrounding the filling part. At least one of the dam structure and the filling part includes a getter. The getter of the present disclosure is composed of magnesium oxide particles whose surfaces are modified into a first surface modification part made of an amino silane-based compound and a second surface modification part bound to the first surface modification part and made of a compound containing an acrylate group and a methacrylate group. Accordingly, it is possible to provide an organic light emitting display device that has high transparency and of which optical properties and durability are improved by minimizing permeation of water and oxygen.

An apparatus for encapsulating a material includes a first channel in fluid communication with a source of a material for encapsulation, at least one second channel in fluid communication with a source of a photopolymerizable compound, and at least one third channel in fluid communication with a source of an encapsulating fluid. Flow of the photopolymerizable compound into the first channel produces sheath flow in the first channel such that the material is within the polymerizable compound. Addition of the encapsulating fluid produces encapsulation precursors. Upon irradiation via a UV-radiation source, the photopolymerizable compound in the encapsulation precursor forms a polymer shell encapsulating the material for encapsulation. Materials such as nanoparticle organic hybrid materials (NOHMs) and a metal-organic frameworks (MOFs) can be thus encapsulated as carbon sequestration micro particles, as the polymer shell is permeable by gases such as carbon dioxide but selectively rejects other compounds such as water.

The present invention relates to a radionuclide adsorbent, which includes a hollow space (specifically, an area which is entirely empty or in which transition metal oxide particles are present); and a transition metal-ferrocyanide shell (specifically, a transition metal-ferrocyanide shell having a structure in which a plurality of two-dimensional nano flakes overlap or a transition metal-ferrocyanide shell having a structure in which a plurality of three-dimensional nano polyhedrons agglomerate) formed on the space surface, a preparation method thereof, and a method of removing a radionuclide using the same.

The present invention relates to a process for the manufacture of microporous carbon materials to perform selective separations of nitrogen in gas mixtures such as hydrogen sulfide, carbon dioxide, methane and C.sub.2, C.sub.3 and C.sub.4.sup.+ hydrocarbons, with high efficiency, shaped of microspheres or cylinders from copolymers of poly (vinylidene chloride-co-methyl acrylate) with density of 1.3 to 1.85 g/cm.sup.3 or poly (vinylidene chloride-co-vinyl chloride) with density of 1.3 to 1.85 g/cm.sup.3, using two stages. The first stage consists of a surface passivation of the material by chemical attack in a highly alkaline alcohol solution, with the aim of effecting a precarbonization on the surface of the copolymer that during the pyrolysis process is not deformed and gradually develops microporosity. The material of the first stage presents, in the layer, percentages between 55% to 85% carbon, between 5% to 20% oxygen, and between 10% to 40% chlorine. The interior of the material presents lower percentages of carbon, between 30% to 65%, oxygen in the amount of between 2% to 6%, and chlorine in the amount of between 30% to 60%. The second stage consists of the gradual pyrolysis of the passivated copolymer, with the aim of developing microporosity and high surface area values; as well as during the melting and gas dehydrohalogenation stages thereof, the deformation of the material is avoided. The morphology of the copolymers are microspheres of 125 to 225 micrometers, or cylinders of 4 mm in height and 3 mm in diameter, which after pyrolysis reduce its size by 35% with respect to the initial one. The material of the second stage, which is already microporous carbon material, presents in the layer percentages between 90% to 100% carbon and between 10% to 0% oxygen.

The present invention generally relates to a composite material. In particular, the present invention relates to a composite material comprising a mixture of a plurality of metal particles and a porous silica particle, wherein said metal particles are disposed within the pores of the porous silica particle. The present invention also provides a method for preparing the composite material used as an oxygen scavenger.