The present invention provides methods for performing supercritical fluid chromatography comprising loading a sample to be separated by supercritical fluid chromatography onto a stationary phase comprising a spherical, monodisperse, core-shell particulate material comprising a nonporous core and one or more layers of a porous shell material surrounding the core, wherein the particles are sized less than 2 microns; and performing supercritical fluid chromatography to separate the sample.

Provided is a hydrogen isotope adsorbent with differential binding properties and including mesoporous silica doped with fluorine.

Functionalized polymer adsorbents for removing impurities from a feed stream comprising an active pharmaceutical ingredient (API) include particles of functionalized with at least one functional moiety capable of binding one or more contaminants, the polymer being a macroreticular polymer and the functionalized polymer adsorbents having a pore volume of at least 0.65 cm.sup.3/g. Alternatively, the adsorbent can comprise a polymer functionalized with either 2,4,6,-dimercaptotriazine-ethylenedithiol (DMT-EDT) adduct, 2,4,6,-trimercaptotriazine-ethylenedithiol (TMT-EDT) adduct, or a combination thereof, and the polymer can be either a macroreticular polymer or a swellable polymer. The adsorbents can be used in either continuous or batch processes for removing contaminants from an API-containing feed stream wherein the contaminants can include elemental impurities, particularly palladium.

The present invention covers a novel method for creating an adsorbent and the resulting novel adsorbent. The method may be used to remove pollutants/unwanted chemicals from water, air, other gases, biological fluids (such as blood, urine, lipids, protein fluids), and other fluids (such as fuel). The adsorbent may be used to remove heavy metals (for example, lead), organic pollutants, inorganic non-meal pollutants (for example, nitrates and bromates). Accordingly, the current invention has many applications including but not limited to water treatment, wastewater treatment, biomedical fluid treatments, gas cleanup, and fuel (oil, gas) cleanup.

A process is disclosed for the removal of hydrogen sulfide (H.sub.2S) from natural. This process provides for passing a natural gas feedstream comprising H.sub.2S though a regenerable adsorbent media which adsorbs H.sub.2S to provide an H.sub.2S-lean natural gas product and H.sub.2S. The regenerable adsorbent media of the present invention is a tertiary amine functionalized cross-linked macroporous polymeric adsorbent media.

The present invention relates, inter alia, to the use of porous crystalline solids constituted of a metal-organic framework (MOF) for the selective adsorption of aldehyde volatile organic compounds.

The MOF solids of the present invention can be used for the improved purification of dry or humid air, and for the manufacture of regenerable filters for air purification, particularly leak-free regenerable air filters.

Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.

A manufacturing process that includes spray-drying a liquid composition based on liquid residues derived from a chemical extraction of clinker to form a material with a high specific surface area. Also, a material based on clinker residues having a high specific surface area ranging from 200 m.sup.2.g.sup.−1 to 900 m.sup.2.g.sup.−1 and a mesopore size ranging from 2 nm to 50 nm. Further, the use of a material having a high specific surface area for the absorption of pollutants species.

A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.

A material for removing a contaminant, the material including an adsorption material for adsorption of a contaminant and a decomposition material for decomposition of a contaminant, wherein the adsorption material and the decomposition material are complexed with each other, and a contaminant decomposition onset temperature of the decomposition material is equal to or lower than a contaminant desorption onset temperature of the adsorption material.