The invention relates to an adsorbent comprising a zeolite-based phase and a non-zeolite-based phase, said adsorbent having: an outer surface area of less than or equal to 30 m.sup.2.Math.g.sup.−1, preferably less than or equal to 20 m.sup.2.Math.g.sup.−1, a zeolite-based phase comprising at least one zeolite of FAU structure of X type, and a pore diameter distribution, determined by mercury intrusion according to standard ASTM D 4284-83 and expressed by the volume distribution dV/d log DHg, in which DHg is the apparent pore diameter and V is the pore volume, the mode of which is between 100 nm and 250 nm, limits inclusive.

The invention also relates to a process for preparing the said adsorbent and to the uses thereof, especially for separating xylene isomers.

[Object]To provide an adsorbent, an adsorbent sheet, and a carbon/polymer composite for adsorbing a virus having further improved virus adsorption capability. [Solving Means] An adsorbent for adsorbing a virus according to the present invention has a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more. An adsorbent sheet for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more. A carbon/polymer composite for adsorbing a virus according to the present invention includes a porous carbonaceous material having a specific surface area value as measured by the nitrogen BET method of 10 m.sup.2/g or more and a pore volume as measured by the BJH method of 0.1 cm.sup.3/g or more; and a binder.

The present disclosure provides a method for synthesizing fibrous silica nanospheres, the method can include, in sequence, the steps of: a) providing a reaction mixture comprising a silica precursor, a hydrolyzing agent, a template molecule, a cosurfactant and one or more solvents; b) maintaining the reaction mixture under stirring for a length of time; c) heating the reaction mixture to a temperature for a length of time; d) cooling the reaction mixture to obtain a solid, and (e) calcinating the solid to pro duce fibrous silica nanospheres, wherein desirable product characteristics such as particle size, fiber density, surface area, pore volume and pore size can be obtained by controlling one or more parameters of the method. The present disclosure further provides a method for synthesizing fibrous silica nanospheres using conventional heating such as refluxing the reactants in an open reactor, thereby eliminating the need for microwave heating in a closed reactor or the need for any pressure reactors.

The invention relates to zeolitic absorbents based on at least one zeolite with hierarchical porosity, containing barium or barium and potassium, to the uses thereof for separating para-xylene from aromatic fractions containing 8 carbon atoms, and to the method for separating para-xylene from aromatic fractions containing 8 carbon atoms.

An adsorbent consisting of iron oxyhydroxide, having a high adsorption rate and high adsorption efficiency compared with conventional products. The adsorbent particle is an adsorbent particle having a crystal structure of β-iron oxyhydroxide, having an average crystallite diameter of 10 nm or less as measured by X-ray diffraction, wherein 90% or more of volume of adsorbent particle is constituted of granular crystals having crystal particle diameter of 20 nm or less, or columnar crystals having width of 10 nm or less and length of 30 nm or less. The adsorbent particle have at least either of the following characteristics: (A) the adsorbent particle contains metal element other than iron in amount of 0.1 to 20% by mass with respect to iron element, or (B) the adsorbent particle contains sulfur oxoacid ions in an amount of 0.01 to 20% by mass in terms of sulfur element with respect to iron element.

The present invention relates to an absorbent material, the absorbent material comprising: a matrix formed from a fibrous material and one or more polymerised binder reagents. The present invention further relates to a method for producing an absorbent material, the method comprising the steps of: combining a feedstock comprising fibrous material with one or more binder reagents; and introducing the feedstock into an agglomeration apparatus in the presence of a polymerisation activator to produce the absorbent material.

Methods for quantifying an amount of exosomes in subject derived biological fluid and comparing to a control provides for a method of identifying a medical condition. Removing an amount of the exosomes by adsorption and binding of the exosomes to an absorbent material, and administering the reconstituted biological fluid comprising a reduced amount of exosomes back to the subject also provides for a method of treating the identified medical condition.

A method of preparing a porous and permeable adsorption material for a vaporizer utilizes a mixing step; a kneading step; a molding step; a drying step; a first holding step; a calcining step; a second holding step; a forming step; a third holding step; and a producing step. The raw materials include particulates of silicon carbide of 50-85 weight percent, a binder of 1-30 weight percent, a pore forming agent of 5-35 weight percent, and a surfactant of 0.15-7.5 weight percent. Once these raw material components are mixed, then adding water of 5 weight percent to 35 weight percent while kneading to form a wetted mixture of raw materials. The remaining steps describe a molding and heating regimen.

Chromatography media and devices containing chromatography media are disclosed. Methods of making chromatography devices and methods of using chromatography devices containing the chromatography media are also disclosed.

A porous material including alumina, the alumina including alpha-alumina, the porous material including one or more metals selected from Co, Mo, Ni, W and combinations thereof, and the porous material having a BET-surface area of 1-110 m2/g, a total pore volume of 0.50-0.80 ml/g, as measured by mercury intrusion porosimetry, and a pore size distribution (PSD) with at least 30 vol% of the total pore volume being in pores with a radius ≥ 400 Å, suitably pores with a radius ≥ 500 Å, A process for removing impurities such as phosphorous (P) from a feedstock by contacting the feedstock with a guard bed including the above porous material. A guard bed for a hydrotreatment system including the porous material, a hydrotreatment system including a guard bed which includes the porous material and a downstream hydrotreatment section including at least one hydrotreatment catalyst.