This disclosure describes a composite filter aid containing a structured composite material formed by agglomerating an mineral with a protein-adsorbing binder, in which structured composite material includes a particle of the protein-adsorbing binder bonded to a plurality of particles of the mineral, and a permeability of the structured composite material is greater than permeabilities of both of the mineral and the protein-adsorbing binder. Also disclosed herein are processes for making composite filter aids and filtering methods using the composite filter aids.

Apparatuses and methods for extracting desired chemical species from input flows in a modular unit.

The present invention describes the process of preparing ceramic materials for absorption of acidic gases, mainly carbon dioxide, in exhaust systems and/or present indoors. Ceramic materials are formed by a mixture of alkali carbonate with alkaline earth metal oxide/hydroxide associated with a binding component, but non-limiting. The alkali carbonate comprises sodium, potassium carbonate, or a mixture of both. The alkaline earth metal oxide/hydroxide may be formed from magnesium oxide or magnesium hydroxide as well as calcium oxide and/or calcium hydroxide.

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.

A system that uses single or multiple elements arranged in a single unit or multiple arrays for the extraction, purification, and concentration of lithium and other constituents from a brine that can be constructed in a mobile unit.

Graphite oxide, graphene oxide and/or graphene-containing composites for use in a filter assemblies and methods of making the same are described. Fluid treatment systems using a filter assembly having graphite oxide, graphene oxide and/or graphene-containing composites are also described. The filter assemblies and systems described herein can be used to purify contaminated fluids including water, aqueous solutions, a gas or mixture of gases, or any combination thereof. The graphite oxide, graphene oxide and/or graphene-containing composites can also have one or more of a zeolite, a boron nitride, a rare earth element, and an ionic salt incorporated therein for specific uses and desired properties.

A diatomite product and method of using such is disclosed. The diatomite product may comprise sodium flux-calcined diatomite, wherein the diatomite product has a crystalline silica content of less than about 1 wt %, and the diatomite product has a permeability between 0.8 darcy and about 30 darcy. In some embodiments, the diatomite product may be in particulate or powdered form. This disclosure also concerns flux-calcined silica products containing low or non-detectable levels of crystalline silica. Some of these products can be further characterized by high permeabilities and a measurable content of opal-C, a hydrated form of silicon dioxide.

Products (4) comprising a physical component (6) and Silica Documentation (8), and methods of preparing such products (4) are disclosed. In some embodiments, the physical component (6) may be powdered or in particulate form. The physical component (6) includes diatomite. In such products (4), a crystalline silica content of the physical component (6) by weight is greater as measured according to Traditional Methods than as measured according to a method that differentiates between opal-C and cristobalite. The Silica Documentation (8) discloses the crystalline silica content present in the physical component (6) as measured according to the method that differentiates between opal-C and cristobalite. The method of preparing the product (4) may include analyzing the physical component (6) for crystalline silica content using an LH Method to determine cristobalite content and preparing Silica Documentation (8) based on the results of the LH Method.

A highly selective carbon monoxide adsorbent and a method of preparing the highly selective carbon monoxide adsorbent are provided. The highly selective carbon monoxide adsorbent includes a boehmite or pseudo-boehmite in which a copper compound is dispersed.

A moisture-absorbing sheet including a hygroscopic molded article containing a resin component and a hygroscopic agent, wherein (1) calcium oxide-based particles having a specific surface area of 0.5 m.sup.2/g to 20 m.sup.2/g and an average particle diameter of 0.5 m to 50 m are included as the hygroscopic agent; (2) a fibrillated fluororesin is included as the resin component; and (3) the sheet has: (a) a weight increase ratio of 1% or less after being allowed to stand for 2 hours in an atmosphere at a temperature of 20 C. and a relative humidity of 65%; and (b) a weight increase ratio of 5% or more after being allowed to further stand for 36 hours after being allowed to stand for 36 hours in an atmosphere at a temperature of 20 C. and a relative humidity of 65%.