B01J20/18

Composite adsorbents and method of making them

A composition for making composite adsorbents from a mixture of geopolymer, zeolite and activated carbon wherein a geopolymer material, a carbonaceous material, and an alkali activating agent are the components of the mixture. The alkali activating agent to carbonaceous material solid mass ratio is at least 0.25:1, respectively. A process for producing shaped composite adsorbents from the composition is done using conventional means such as mixing, shaping, extrusion and other methods. Alkali activation is used to convert the carbonaceous material to activated carbon, followed by hydrothermal treatment to convert the geopolymer material to zeolites. Shaped composite adsorbents fabricated from the composition of the instant invention are used for adsorption, purification, or other separation applications of liquids and gases.

Composite adsorbents and method of making them

A composition for making composite adsorbents from a mixture of geopolymer, zeolite and activated carbon wherein a geopolymer material, a carbonaceous material, and an alkali activating agent are the components of the mixture. The alkali activating agent to carbonaceous material solid mass ratio is at least 0.25:1, respectively. A process for producing shaped composite adsorbents from the composition is done using conventional means such as mixing, shaping, extrusion and other methods. Alkali activation is used to convert the carbonaceous material to activated carbon, followed by hydrothermal treatment to convert the geopolymer material to zeolites. Shaped composite adsorbents fabricated from the composition of the instant invention are used for adsorption, purification, or other separation applications of liquids and gases.

Litter compositions
11622531 · 2023-04-11 · ·

Provided herein are compositions and methods comprising a fragrance and from about 0.5 weight % to about 5.0 weight % of a granular malodor adsorbent which can be used to eliminate malodor in animal waste. The granular malodor absorbent can be granular molecular sieves or granulated activated carbon and has a pore size from about 0.4 nm to about 2.0 nm and a total surface area from about 100 m.sup.2/g to about 1500 m.sup.2/g.

Litter compositions
11622531 · 2023-04-11 · ·

Provided herein are compositions and methods comprising a fragrance and from about 0.5 weight % to about 5.0 weight % of a granular malodor adsorbent which can be used to eliminate malodor in animal waste. The granular malodor absorbent can be granular molecular sieves or granulated activated carbon and has a pore size from about 0.4 nm to about 2.0 nm and a total surface area from about 100 m.sup.2/g to about 1500 m.sup.2/g.

SOLID MATERIAL HAVING AN OPEN MULTIPLE POROSITY, COMPRISING A GEOPOLYMER AND SOLID PARTICLES, AND METHOD FOR THE PREPARATION THEREOF

Solid material having an open multiple and at least partially interconnected porosity, comprising an inorganic matrix made of a microporous and mesoporous geopolymer, in which at least partially interconnected open macropores delimited by sides or walls made of microporous and mesoporous geopolymer are defined, and particles of at least one solid compound different from the geopolymer being distributed in the macropores and/or in the sides or walls. Method for preparing said material. Method for separating at least one metal or metalloid cation from a liquid medium containing it, wherein said liquid medium is placed in contact with the material.

SOLID MATERIAL HAVING AN OPEN MULTIPLE POROSITY, COMPRISING A GEOPOLYMER AND SOLID PARTICLES, AND METHOD FOR THE PREPARATION THEREOF

Solid material having an open multiple and at least partially interconnected porosity, comprising an inorganic matrix made of a microporous and mesoporous geopolymer, in which at least partially interconnected open macropores delimited by sides or walls made of microporous and mesoporous geopolymer are defined, and particles of at least one solid compound different from the geopolymer being distributed in the macropores and/or in the sides or walls. Method for preparing said material. Method for separating at least one metal or metalloid cation from a liquid medium containing it, wherein said liquid medium is placed in contact with the material.

ALUMINOSILICATE STRUCTURE BODY HAVING NOVEL STRUCTURE AND SKEIN-SHAPED MORPHOLOGY, METHOD FOR PREPARING SAME, AND HPLC COLUMN FILLED WITH SAME AS STATIC BED

The present inventive concept relates to an aluminosilicate structure body with a novel crystal structure and, more specifically, to an aluminosilicate structure body having a novel crystal structure and a skein-shaped morphology, a method for preparing the same, and an HPLC column filled with the same as a stationary phase. The aluminosilicate structure body according to the present inventive concept has a novel crystal structure and a skein-shaped morphology, and thus has a specific surface area increased to up to 300 m.sup.2/g so as to improve separation ability; and does not undergo a structural change with pH changes, and thus can be usefully used in a wider range of pH conditions than existing silica gel which has been conventionally used as a stationary phase for HPLC columns.

ALUMINOSILICATE STRUCTURE BODY HAVING NOVEL STRUCTURE AND SKEIN-SHAPED MORPHOLOGY, METHOD FOR PREPARING SAME, AND HPLC COLUMN FILLED WITH SAME AS STATIC BED

The present inventive concept relates to an aluminosilicate structure body with a novel crystal structure and, more specifically, to an aluminosilicate structure body having a novel crystal structure and a skein-shaped morphology, a method for preparing the same, and an HPLC column filled with the same as a stationary phase. The aluminosilicate structure body according to the present inventive concept has a novel crystal structure and a skein-shaped morphology, and thus has a specific surface area increased to up to 300 m.sup.2/g so as to improve separation ability; and does not undergo a structural change with pH changes, and thus can be usefully used in a wider range of pH conditions than existing silica gel which has been conventionally used as a stationary phase for HPLC columns.

Air purifiers
11648329 · 2023-05-16 · ·

In certain exemplary embodiments, an air purifier comprises a housing defining an enclosure and having an air entrance and an air exit; a particulate filter; a NCCO filter material configured to adsorb and decompose at least one gaseous pollutant; an AOG configured to generate at least one oxidant; an oxidant remover configured to remove at least one oxidant; a fan unit configured to generate airflow from the air entrance to the air exit; wherein the particulate filter, the NCCO filter material, the AOG, the oxidant remover and the fan unit are positioned within the enclosure such that during operation, a flow of air passes from the air entrance to the air exit through the particulate filter and the NCCO filter material along a direction of the flow of air. In certain embodiments, the air purifier may ensure safety to users while efficiency in removing contaminants can be greatly improved.

Air purifiers
11648329 · 2023-05-16 · ·

In certain exemplary embodiments, an air purifier comprises a housing defining an enclosure and having an air entrance and an air exit; a particulate filter; a NCCO filter material configured to adsorb and decompose at least one gaseous pollutant; an AOG configured to generate at least one oxidant; an oxidant remover configured to remove at least one oxidant; a fan unit configured to generate airflow from the air entrance to the air exit; wherein the particulate filter, the NCCO filter material, the AOG, the oxidant remover and the fan unit are positioned within the enclosure such that during operation, a flow of air passes from the air entrance to the air exit through the particulate filter and the NCCO filter material along a direction of the flow of air. In certain embodiments, the air purifier may ensure safety to users while efficiency in removing contaminants can be greatly improved.