Sorptive gas separation processes employing chemisorbents or amine doped sorbents are provided for separating a first component from a multi-component fluid mixture, or specifically for separating carbon dioxide from a combustion gas stream. The sorptive gas separation process comprises a sorbing step where during a first period of the sorbing step a first portion of a first product stream is recovered comprising a second component such as a nitrogen component, and during a second period of the sorbing step a second portion of a first product stream is recovered comprising a third component such as a water component.

The invention relates to devices, systems, and methods for recharging zirconium phosphate and/or zirconium oxide in reusable sorbent modules. The devices, systems, and methods provide for precision recharging of the zirconium phosphate and/or zirconium oxide to avoid the need of excess recharge solutions. The devices systems and methods also provide for calculation of the volumes of recharge solution needed for fully recharging the zirconium phosphate and zirconium oxide modules.

The invention relates to a method for removing polyfluorinated organic compounds from water by means of an adsorbent and to the regeneration of the latter. According to the invention, at least one zeolite is used as an adsorbent, which is brought into contact with the water and is then regenerated by wet-chemical oxidation, wherein the oxidation is carried out by means of UV irradiation and/or at a pH in the range from pH 2.5-7.5.

An adsorbent for a target compound can include porous carbon particles having pores with a predominant pore size less than 10 nm, and magnetic nanoparticles (MNP) nucleated on the carbon surface and within the pores of carbon particles to provide a carbon magnetic nanoparticle adsorbent (C-MNA). A method for removing target compounds with an adsorbent, a system for removing contaminants from a liquid, and a method for adsorbing target compounds from a fluid are also disclosed.

A polymeric polysulfide is disclosed. The polymeric polysulfide is formed by reacting a fatty acid composition comprising at least one unsaturated fatty acid or derivative thereof with sulfur, at a weight ratio between 9:1 and 1:9, under inverse vulcanisation conditions to produce a polymeric polysulfide wherein at least 50% of the fatty acids or derivatives thereof in the fatty acid composition are unsaturated.

The invention relates to systems and methods for recharging sorbent materials and other rechargeable dialysis components. The systems and methods include rechargers, flow paths, and related components for connecting multiple rechargers together to sharing infrastructure and resources. The rechargeable dialysis components can include zirconium phosphate, zirconium oxide, and other sorbent cartridge materials including any combination thereof or any other rechargeable component of a dialysis system. Additionally, a single-use cartridge or a multi-use cartridge can be used in the present invention.

Beads of materials such as activated alumina, zeolite and silica gel, are used as chloride salt absorbers. The beads are mixed with high-salt gypsum. After mixing for a short time, the mixtures are dried, and the beads and the powder are separated by using a sieve or other physical separation device resulting in a low-salt gypsum which can be used as a gypsum source to make gypsum wallboard.

The invention relates to devices, systems, and methods for mixing one or more solutions to generate a recharge solution having specified concentrations of a sodium salt and acid for recharging and disinfecting zirconium phosphate in reusable sorbent modules. The devices, systems, and methods can generate a recharge solution by a sorbent recharger that is introduced through the sorbent module to recharge and to disinfect the zirconium phosphate.

Systems and methods for generating a brine solution using a canister for recharging zirconium phosphate in a reusable sorbent module are provided. The canister can include salt and have an inlet and an outlet. The inlet can extend upwardly into an interior of the canister above solid sodium chloride and sodium acetate. Water can be added to dissolve the salts in the canister and the resulting solution can be collected as a brine solution for use in recharging the zirconium phosphate.

A method for producing .sup.225Ac solution includes steps (I) to (III): a step (I) of passing a solution containing .sup.226Ra and .sup.225Ac through a solid-phase extraction agent (a) that contains a compound represented by formula (A) so as to cause the solid-phase extraction agent (a) to retain .sup.225Ac; a step (II) of passing a liquid containing an eluate, which is obtained by eluting the retained .sup.225Ac from the solid-phase extraction agent (a), through a solid-phase extraction agent (b) that contains a compound represented by formula (B) so as to cause the solid-phase extraction agent (b) to retain .sup.225Ac; and a step (III) of eluting the retained .sup.225Ac from the solid-phase extraction agent (b) to obtain an .sup.225Ac solution.

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