The present invention relates to a carbon block filter for removal of cesium and a method of manufacturing the same. The carbon block includes activated carbon, a binder, and a cesium adsorbent, and is manufactured in which the activated carbon, the binder, and the cesium adsorbent are mixed, heated, and molded or the activated carbon, the binder, and the cesium adsorbent are mixed, molded, and heated. The carbon block filter manufactured thereby removes cesium excellently and maintains water purification performance for long periods of time.

A powdered Iron-Selenide-Oxide sorbent composition, a method of using the sorbent, and a method for producing the sorbent is disclosed for removing mercury vapor from a gaseous stream. The exact ratios of Fe to Se are varied. The method for producing the sorbent comprises the steps of: preparing a base ferrous or ferric oxide (FeO.sub.x) media, conditioning the FeO.sub.x media with a slurry of ferrous selenite (FeSeO.sub.3)/ferrous selenate (FeSeO.sub.4), reducing the FeSeO.sub.3/FeSeO.sub.4 mixture by an elemental iron (Fe.sup.0) powder to incorporate selenide into the slurry, and dewatering and oxidizing the slurry. The sorbent can be used alone (or in combination with a powdered activated carbon material or an inert powdered material) by direct injection into the Hg-containing gas stream, by coating of a filter fabric used in bag house with the sorbent, or by using the sorbent in a packed bed gas stream filtration system.

[Object] To provide a method for producing a water-absorbent resin in powder form or particle form, which has excellent physical properties such as water absorption performance and the like, at high productivity.

[Solution] A method for producing a water-absorbent resin includes: a polymerization step of polymerizing a monomer, which is a raw material of the water-absorbent resin, to obtain a hydrous gel crosslinked polymer dispersed in an organic solvent; and a separation step of separating the organic solvent and the hydrous gel crosslinked polymer. The separation step includes transfer, compression, and discharge of the hydrous gel crosslinked polymer.

The present invention discloses an oxygen absorber composition in the form of an oxygen absorber tablet and a process for the preparation of the oxygen absorber tablet. The oxygen absorber tablet includes composition A and iron powder. Composition A has binding agent, carbon, silica gel, clay, hygroscopic salt and magnesium stearate. The ratio of iron powder to Composition A is determined depending on the target air volume from where the oxygen is to be removed. The tablets are prepared for 30 cc, 100 cc, 250 cc and 500 cc of target air volume. The tablet has an enhanced oxygen absorption amount per unit volume. It absorbs moisture and odour from the available target air volume and helps diminish the hydrogen and carbon dioxide gas generated during oxidation. The tablets are compact, user friendly and are useful to increase the shelf life of pharmaceutical, food and nutraceutical products.

A manufacturing apparatus is an apparatus for manufacturing a water absorption treatment material that is composed of a plurality of grains that bond to each other upon absorbing a liquid, and includes a granulation machine and a pressure application machine. The granulation machine forms a substantially cylindrical granule that constitutes each of the grains by granulating a granulation material. The pressure application machine applies pressure to the granule formed by the granulation machine from a longitudinal direction of the granule so as to reduce the length of the granule.

Disclosed are silica bound zeolite adsorbent particles which possess high volumetric gas adsorption capacity for the adsorption and/or desorption of gases. The adsorbent are highly effective as a gas source in volumetrically constrained applications. The silica-bound zeolite adsorbents possess a relatively high zeolite content simultaneously with a relatively low intra-particle pore volume as compared to the clay bound zeolite aggregates heretofore used as a gas source in volumetrically constrained environments, e.g. instant beverage carbonation processes, devices or systems.

The invention relates to the use of a high performance thermoplastic polymer binder material for immobilizing adsorptive materials, such as activated carbon, in gas storage devices. The use of these binders, especially polyamide binders or polyvinylidene fluoride such as Kyblock? resin, provides for high adsorbent packing density, low fouling solid structure that maximizes the volume of gas to the volume of the storage space.

A method provides a buoyant sheet of compacted water Hyacinth particles having a size of between 1/32 inches and 1/16 inches, and a moisture content 10 percent, and a plurality of dry Hyacinth particles having a size of between 0.001 and 1 inch, and a moisture content 10 percent.

The present disclosure provides for a porous gas sorbent material with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent material of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent material includes a gas adsorbing material and a non-aqueous binder.

The present invention relates to a method of post-synthetic downsizing zeolite-type crystals and/or agglomerates thereof to nanosized particles, and in particular a heating-free and chemical-free method. The present invention also relates to nanosized particles of zeolite-type material capable of being obtained by the method of the invention and to the use of such particles as a catalyst or catalyst support for heterogeneous catalyst, or as molecular sieve, or as a cation exchanger.