Implementations are described herein that include producing waste forms that include an amount of radioactive waste material encapsulated in an amount of polymeric material. The waste form can be produced by heating a mixture that includes the polymeric material and the radioactive waste material. The heated or molten mixture is then subject to a process that applies an amount of pressure to the heated mixture and produces the waste form.

In one aspect, the present invention provides a chromatographic stationary phase material for various different modes of chromatography represented by Formula 1: [X](W).sub.a(Q).sub.b(T).sub.c (Formula 1). X can be a high purity chromatographic core composition having a surface comprising a silica core material, metal oxide core material, an inorganic-organic hybrid material or a group of block copolymers thereof. W can be absent and/or can include hydrogen and/or can include a hydroxyl on the surface of X. Q can be a functional group that minimizes retention variation over time (drift) under chromatographic conditions utilizing low water concentrations. T can include one or more hydrophilic, polar, ionizable, and/or charged functional groups that chromatographically interact with the analyte. Additionally, b and c can be positive numbers, with the ratio 0.05(b/c)100, and a0.

The present invention relates to a super absorbent polymer and a manufacturing method thereof, and more specifically, to a super absorbent polymer having improved porosity and permeability and a manufacturing method thereof.

Selenium nanomaterials and methods of making and using selenium nanomaterials are disclosed herein. In some embodiments, the selenium nanomaterials can advantageously be used, for example, for removing mercury from air and/or water.

The present invention generally relates to compounds, systems, and methods for adsorption of CO.sub.2 onto nanoclusters.

The present invention relates to a fast particulate superabsorbent polymer composition comprising a polymer comprising a neutralized aluminum salt solution applied to the surface of a particulate superabsorbent polymer; wherein an aqueous solution of the neutralized aluminum salt has a pH value from about 5.5 to about 8; and subsequent to subjecting the particulate superabsorbent polymer composition to the Processing Test, the particulate superabsorbent polymer composition has a permeability stability index of from about 0.60 to about 0.99, and a compressibility from 1.30 mm.sup.2/N to about 4 mm.sup.2/N as measured by the Compression Test, and wherein the particulate superabsorbent polymer composition may have a Vortex time of from 25 to 60 seconds and absorbency under load at 0.9 psi of from 15 to 21 g/g.

A method of making clumping deodorizer granules can include applying a clumping agent to a particles containing activated carbon to at least partially coat an outer surface of the particles with a distinct layer comprising the clumping agent. Clumping deodorizer granules can include particles containing activated carbon, and an outer surface of each of the particles is at least partially coated with a distinct layer containing a clumping agent. A method of reducing malodor from animal waste can include adding clumping deodorizer granules to a pet litter in a litter box, the clumping deodorizer granules including particles containing activated carbon, and an outer surface of each of the particles is at least partially coated with a distinct layer containing a clumping agent.

The present disclosure provides a multilayer article. The multilayer article includes a) a microfiltration membrane substrate; b) a first layer directly attached to the first major surface of the microfiltration membrane substrate; and c) a second layer directly attached to the first layer. The first layer includes a first polymeric binder and acid-sintered interconnected first silica nanoparticles arranged to form a continuous three-dimensional porous network. The second layer includes acid-sintered interconnected second silica nanoparticles arranged to form a continuous three-dimensional porous network. The present disclosure also provides a method for forming a multilayer article. The method includes (a) saturating a microfiltration membrane substrate with a liquid; (b) applying a first aqueous coating formulation to at least a portion of a first major surface of the microfiltration membrane substrate to form a coated substrate; (c) sintering the coated substrate, thereby forming a first layer; (d) applying a second aqueous coating formulation to the first major surface of the first layer to form a twice-coated substrate; and (e) sintering the twice-coated substrate.

The present invention provides novel chromatographic materials. e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The chromatographic materials of the invention have controlled porosity and comprise a chromatographic core material and one or more layers of chromatographic surface material which each independently provide an average pore diameter, an average pore volume, or a specific surface area such that the combined layers form a chromatographic material having a predetermined or desired pattern of porosity from the core material to the outermost surface. The materials are useful for HPLC separations, normal-phase selarations, reversed-phase separations, chiral separations, HILIC separations, SFC separations, affinity separations, perfusive separations, partially perfusive separations, and SEC separations.

The present invention relates to a super absorbent polymer having more improved absorbency under pressure and liquid permeability, and a method for producing the same. The super absorbent polymer comprises a base polymer powder including a cross-linked polymer of a monomer containing a water-soluble ethylenically unsaturated compound or its salt; and a surface cross-linked layer that is formed on the base polymer powder and is further cross-linked from the cross-linked polymer, wherein a glass hollow particle having a micron-scale particle size is included on the surface cross-linked layer.