A system for separating components of a fluid containing at least a first component and a second component includes a device having an inlet for introducing the fluid into the device, a first outlet for directing the first component of the fluid from the device, and a second outlet for directing the second component of the fluid from the device. A material that has a gradient in properties is located in the device between the inlet and the first and second outlets. The material has a first portion with an affinity for the first fluid component and a second portion with an affinity for the second fluid component. The first portion is positioned with relation to the first outlet such that the first component is directed from said device through the first outlet. The second portion is positioned with relation to the second outlet such that the second component is directed from the device through the second outlet.

Compounds and compositions are provided that inhibit histone deacylase activity and which expand renal progenitor cell populations and improve kidney function in a damaged kidney. Methods of use of the compounds and compositions are provided.

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/dlogDHg, 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.

Provided is a process for purifying an aqueous solution, wherein the aqueous solution comprises one or more sugars and additionally comprises furfural, hydroxymethylfurfural, or a mixture thereof; wherein the process comprises passing the aqueous solution through a collection of resin particles; and wherein the resin particles comprise covalently bound acid functional groups.

An object of the present invention is to separate a material to be separated at a low cost and constant accuracy when the material to be separated is separated from a mobile phase containing the material to be separated through the passing of the mobile phase through a stationary phase, even if the mobile phase has a large volume. A separation device characterized in that a separation column provided with a stationary phase having a volume capable of processing the entire volume of a mobile phase containing a material to be separated is provided, the separation column is replaceable, and the usage count of the stationary phase reaches a lifetime count through the processing of one batch.

The invention relates to a method for the chromatographic purification of at least one cannabinoid compound, wherein the method comprises a main purification stage comprising the steps of: injecting an initial mixture comprising the at least one cannabinoid compound and one or more additional compounds onto a main stationary phase comprising silica particles, the silica particles comprising amino and/or diol groups; performing an elution with an elution solution, and collecting one or more elution fractions; and optionally, washing the main stationary phase with a washing solution and collecting one or more washing fractions; at least one of the elution fractions or washing fractions containing the at least one cannabinoid compound purified from the one or more additional compounds.

Systems and methods are provided for converting alkane while generating improved yields of desirable aromatics and/or improved selectivity for forming desired aromatics, such as para-xylene (p-xylene). Aromatics generated during the aromatic formation process can be alkylated to form xylenes with improved yield and/or improved selectivity.

According to the invention, said tissue endoprosthesis comprises an expandable support structure or stent held between an inner tissue structure and an outer coating consisting of a hemocompatible soft synthetic material which impregnates said inner structure through the openings in said support structure.

The present invention relates to a zeolite adsorbent having an external surface area of between 20 m.sup.2.Math.g.sup.1 and 70 m.sup.2.Math.g.sup.1, a mesopore volume (V.sub.meso) of less than or equal to 0.20 cm.sup.3.Math.g.sup.1, and a content of non-zeolite phase (NZP) of less than or equal to 6%, and in which at least one of its dimensions is greater than or equal to 30 m.

The invention also relates to the process for preparing said zeolite materials in agglomerated form and to the uses thereof for gas-phase or liquid-phase separation operations.

Para-xylene is separated from a mixture of C8 aromatics using a simulated moving bed (SMB) adsorption process, wherein a MOF is used as an adsorbent and an alkane or alkene having 7 or less carbon atoms, such as hexane or heptane is used as desorbent. Because of the difference in boiling points of a hexane or heptane desorbent as compared to conventional desorbents such as toluene or para-diethylbenzene, less energy is required to separate hexane or heptane from C8 aromatics by distillation than the energy required to separate toluene or diethylbenzene from C8 aromatics by distillation.