Abstract:
The present invention provides an oxygen absorbing agent composition comprising a compound (A) having two or more tetralin rings, and a transition metal catalyst.
Abstract:
A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which is a mesoporous organosilica material. The organosilica material is a polymer of at least one monomer of Formula [Z1OZ2 SiCh2]3(i), where Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silic-on atom of another monomer and Z2 represents a hydroxyl group, a C1-C4alkoxy group, a C1-C6 salkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
Abstract:
Procedure for the magnetization of different inorganic surfaces, whether natural or synthetic, such as aluminosilicates, both synthetic and natural (natural zeolites, synthetic zeolites, alumina, allophane, among others) that give magnetic properties to those surfaces. Objectives of the present application are also the above mentioned surfaces, magnetized, and their different uses.
Abstract:
A multilayer nonporous oxygen absorbing structure that resists delamination, e.g., humidity induced delamination, including a first layer having a first continuous polymer phase, a first water insoluble, dispersed, polyether resin phase in the first continuous polymer phase, and a water activated oxygen absorber, and a second layer having a second continuous polymer phase, bonded to the first layer.
Abstract:
A process for producing an oxygen absorbing agent includes treating an alloy with an aqueous solution of an acid or an alkali, the alloy including at least one transition metal selected from the group consisting of manganese, iron, platinum, and copper group metals and at least one metal selected from the group consisting of aluminum, zinc, tin, lead, magnesium, and silicon to elute and remove at least a part of the component; and subjecting the alloy obtained by removing at least a part of the component in the alloy to treatment with an aqueous solution of a salt of an inorganic acid or a salt of an organic acid that can form a salt with the transition metal as the component, to form a metal salt in at least a part of the surface of the alloy.
Abstract:
A dolomite-based material having a high specific surface area of the present invention is half-fired dolomite in which a content of a residual CaMg(CO3)2 phase in the half-fired dolomite, which is analyzed using a Rietveld method by means of powder X-ray diffraction, is 0.4δ×δ35.4 (wt %), and, when the content of the residual CaMg(CO3)2 phase in the fired-dolomite is maintained at 0.4δ×δ35.4 (wt %), the dolomite-based material maintains quality of having a high specific surface area.
Abstract:
The present invention relates to a radioactive cesium adsorbent, a method for producing the same, and a method for decontaminating the environment from radioactive cesium with the adsorbent. The radioactive cesium adsorbent of the present invention includes a hydrophilic fiber substrate supporting a Prussian blue analog, in particular, Prussian blue, and the Prussian blue analog is immobilized in the inside of the fibers.
Abstract:
A biodegradable iron-crosslinked alginate is useful as a remediation agent for environmental contaminants such as phosphate. When charged with phosphate, or other nutrients, the iron-functionalized alginate can be used as an agricultural fertilizer.
Abstract:
A magnetic hydrotalcite composite which is useful in fields such as wastewater treatment, ultraviolet absorption, electromagnetic wave absorption and acid gas absorption, and a production method thereof.The magnetic hydrotalcite composite comprises an inner layer and an outer layer, in which the inner layer is made of a hydrotalcite compound and the outer layer is made of a ferrite compound.
Abstract:
Adsorbent materials including a porous material support and about 0.5 wt. % to about 30 wt. % of a Group 8 metal ion are provide herein. Methods of making the adsorbent material and processes of using the adsorbent material, e.g., for heteroatom species separation, are also provided herein.