C01B39/026

METHODS FOR PRODUCING HIERARCHICAL MESOPOROUS BETA ZEOLITE
20230119837 · 2023-04-20 · ·

A method for producing a hierarchical mesoporous beta includes mixing a beta zeolite with an aqueous metal hydroxide solution and heating the beta zeolite and the aqueous metal hydroxide mixture to produce a desilicated beta zeolite, contacting the desilicated beta zeolite with an ammonium salt solution to produce an intermediate hierarchical mesoporous beta zeolite, and treating the intermediate hierarchical mesoporous beta zeolite with an acidic solution to produce the hierarchical mesoporous beta zeolite. The hierarchical mesoporous beta zeolite includes a molar ratio of silicon to aluminum of greater than 12.5, a total pore volume of greater than or equal to the total pore volume of the intermediate hierarchical mesoporous beta zeolite, and an average mesopore size of greater than or equal to the average mesopore size of the hierarchical mesoporous beta zeolite. The method may also include calcining the intermediate hierarchical mesoporous beta zeolite.

PROCESS FOR THE PRODUCTION OF THE CHA-AFT ZEOLITE INTERGROWTH COE-10 AND USE THEREOF IN HETEROGENEOUS CATALYSIS

A process for the production of a zeolitic material comprising one or more zeolite intergrowth phases of one or more zeolites having a CHA-type framework structure comprising SiO.sub.2 and X.sub.2O.sub.3, and one or more zeolites having an AFT-type framework CT structure comprising SiO.sub.2 and X.sub.2O.sub.3, wherein X is a trivalent element, and wherein said process comprises: (1) preparing a mixture comprising one or more sources for SiO.sub.2, one or more sources for X.sub.2O.sub.3, and seed crystals comprising a zeolitic material, said zeolitic material comprising SiO.sub.2 and X.sub.2O.sub.3 in its framework structure and having a CHA-type framework structure; (2) heating the mixture prepared in (1) for obtaining a zeolitic material comprising one or more zeolite intergrowth phases; and (R) subjecting the zeolitic material obtained in (2) to a procedure for removing at least a portion of X from the framework structure of the zeolitic material.

Method and apparatus for the production of a zeolite particle composition
11628448 · 2023-04-18 ·

The invention provides a method for the production of a zeolite particle composition which has optimized characteristics, such as enhanced adsorption and specific ion exchange properties. A method and an apparatus for producing improved zeolite particle compositions are provided, where the particles are treated with an oxygen-containing gas during micronisation. The zeolite particle compositions can be used in a method for treatment of the human or animal body by therapy and/or prophylaxis, and specifically in a method of treating or preventing conditions of the human or animal body or symptoms of these conditions that are related to heavy metals, endotoxins, exotoxins, and/or bacterial, viral or parasitic intoxications in or of the digestive system, mucosal surfaces or the skin. Also, new zeolite particle compositions can be used as food additive, as filter for purification of water, in packaging materials, or as cosmetic ingredient.

Purification of clinoptilolite

Zeolites for extraction of heavy metals are given enhanced purification in a first method stage and further processed in a second method stage to form liquid and solid phases including swollen clinoptilolite fragments ranging from 200 to 2000 Daltons and formed as liposomes and usable to substantially reduce heavy metal ppm burdens for purposes of safe ingestion by mammals and reduction of heavy metal contaminants of gut, vascular and lymphatic systems of a mammalian host.

FAUJASITE TYPE ZEOLITE AND METHOD FOR PRODUCING SAME

A faujasite-type zeolite has an IR spectrum in which the IR spectrum has an absorption band 1 including surface silanol groups and having a local maximum in a range from 3730 cm.sup.−1 to 3760 cm.sup.−1, and an absorption band 2 including acidic hydroxyl groups and having a local maximum in a range from 3550 cm.sup.−1 to 3700 cm.sup.−1, a ratio (h1/h2) of a peak height (h1) of the absorption band 1 to a peak height (h2) of the absorption band 2 being less than 1.2.

MODIFIED ZEOLITES THAT INCLUDE TITANIUM-CONTAINING ORGANOMETALLIC MOIETIES AND METHODS FOR MAKING SUCH

Disclosed herein are modified zeolites and methods for making modified zeolites. In one or more embodiments disclosed herein, a modified zeolite may include a microporous framework comprising a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework may include at least silicon atoms and oxygen atoms. The modified zeolite may further include organometallic moieties each bonded to bridging oxygen atoms. The organometallic moieties may include a titanium atom. The titanium atom may be bonded to a bridging oxygen atom, and the bridging oxygen atom may bridge the titanium atom of the organometallic moiety and a silicon atom of the microporous framework.

Potassium-merlinoite zeolite, its synthesis and use
11465122 · 2022-10-11 · ·

The present disclosure is directed to a method for making a MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, and processes for the selective separation of carbon dioxide (CO.sub.2) from multi-component feedstreams containing CO.sub.2 using the zeolite.

SYNTHESIS OF FINNED ZEOLITE CRYSTALS

A secondary growth procedure described herein is used to prepare finned zeolites. The finned zeolites possess properties that are distinctly unique compared to crystals of similar size lacking fins. The procedure is amenable to a wide range of zeolite crystal structures.

Functional structural body and method for making functional structural body

A functional structural body that can realize a prolonged life time by suppressing the decrease in function and that can fulfill resource saving without requiring a complicated replacement operation is provided. A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound; and at least one solid acid present in the skeletal body, the skeletal body has channels connecting with each other, and the solid acid is present at least in the channels of the skeletal body.

CLAY NANOPARTICLE PREPARATION FOR INDUSTRIAL APPLICATIONS

A method of enriching nano-bentonite from a raw bentonite composition comprises the steps of mixing the raw bentonite composition with water to produce a bentonite solution, increasing the temperature of the bentonite solution to produce a warm bentonite solution, mixing the warm bentonite solution at a mixing rate to produce a colloidal solution, filtering the colloidal solution with a micro-sieve to produce a filtered colloidal solution, centrifuging the filtered colloidal solution at a centrifuge rate for a centrifuge time to produce a separated colloidal solution, wherein the nano-sized impurities are selected from the group consisting of quartz, feldspar, cristbalite, calcite, iron oxides, magnetite, calcium carbonate, and combinations of the same, and drying the separated colloidal solution to remove water to produce the nano-bentonite.