Abstract:
A method for the production of a composition comprising a metal containing compound, a silica containing material, a promoter, and alumina is disclosed. The composition can then be utilized in a process for the removal of sulfur from a hydrocarbon stream.
Abstract:
A Ccomposition comprising one or more metal hydroxy salts and a matrix, binder or carrier material, wherein the metal hydroxy salt is a compound comprising (a) as metal either (i) one or more divalent metals, at least one of them being selected from the group consisting of Ni, Co, Ca, Zn, Mg, Fe, and Mn, or (ii) one or more trivalent metal(s), (b) framework hydroxide, and (c) a replaceable anion. This composition has various catalytic applications.
Abstract:
An anion absorbent comprising sintered clay of porous structure and a rare earth compound supported on the sintered clay. The anion absorbent is produced by a production method of an anion absorbent comprising a mixing step of mixing clay with an additive for making the clay porous, a sintering step of sintering a mixture obtained in the mixing step, and a supporting step of supporting a rare earth compound on the clay before the mixing step and/or on a sintered matter after the sintering step. A water treatment method comprising a step of bringing the anion absorbent into contact with water to be treated at a predetermined pH so as to absorb and thus remove anions in the water to be treated, and a step of bringing the absorbent, which absorbed anions, into contact with solution having pH, which is different from the aforementioned predetermined pH, so as to desorb anions from the absorbent.
Abstract:
Rare earth metal compounds, particularly lanthanum, cerium, and yttrium, are formed as porous particles and are effective in binding metals, metal ions, and phosphate. A method of making the particles and a method of using the particles is disclosed. The particles may be used in the gastrointestinal tract or the bloodstream to remove phosphate or to treat hyperphosphatemia in mammals. The particles may also be used to remove metals from fluids such as water.
Abstract:
A particulate filter device comprises a particulate filter comprising a substrate having a redox active material disposed thereon, wherein the redox active material is a solid solution capable of transformation between a stable reduced form and a stable oxidized form, and is capable of generating an exotherm under re-oxidizing conditions; and a housing disposed around the substrate.
Abstract:
A composition comprising a metal oxide and a promoter, wherein at least a portion of the promoter is present as a reduced valence promoter, and methods of preparing such composition are disclosed. The thus-obtained composition is employed in a desulfurization zone to remove sulfur from a hydrocarbon stream.
Abstract:
Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or metal hydroxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide or metal hydroxide nanocrystals can be pressed into pellets for use when a powder is not feasible. Preferred metal oxides for the methods include MgO, SrO, BaO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, SiO2, ZnO, Ag2O, nullCe(NO3)3nullCu(NO3)2nullTiO2, Mg(OH)2, Ca(OH)2, Al(OH)3, Sr(OH)2, Ba(OH)2, Fe(OH)3, Cu(OH)3, Ni(OH)2, Co(OH)2, Zn(OH)2, AgOH, and mixtures thereof.
Abstract translation:提供了用于破坏生物制剂如毒素和细菌的组合物和方法,其中待破坏的物质与细碎的金属氧化物或氢氧化物纳米晶体接触。 在各种实施方案中,金属氧化物或金属氢氧化物纳米晶体在其表面上具有稳定的反应性原子,吸附在其表面上的物质或用第二金属氧化物涂覆。 当粉末不可行时,可以将期望的金属氧化物或金属氢氧化物纳米晶体压制成颗粒使用。 优选的金属氧化物包括MgO,SrO,BaO,CaO,TiO2,ZrO2,FeO,V2O3,V2O5,Mn2O3,Fe2O3,NiO,CuO,Al2O3,SiO2,ZnO,Ag2O,[Ce(NO3) NO 3)2] TiO 2,Mg(OH)2,Ca(OH)2,Al(OH)3,Sr(OH)2,Ba(OH)2,Fe(OH)3,Cu(OH) OH)2,Co(OH)2,Zn(OH)2,AgOH及其混合物。
Abstract:
Compositions and methods for destroying biological agents such as toxins and bacteria are provided wherein the substance to be destroyed is contacted with finely divided metal oxide or hydroxide nanocrystals. In various embodiments, the metal oxide or metal hydroxide nanocrystals have reactive atoms stabilized on their surfaces, species adsorbed on their surfaces, or are coated with a second metal oxide. The desired metal oxide or metal hydroxide nanocrystals can be pressed into pellets for use when a powder is not feasible. Preferred metal oxides for the methods include MgO, SrO, BaO, CaO, TiO2, ZrO2, FeO, V2O3, V2O5, Mn2O3, Fe2O3, NiO, CuO, Al2O3, SiO2, ZnO, Ag2O, [Ce(NO3)3—Cu(NO3)2]TiO2, Mg(OH)2, Ca(OH)2, Al(OH)3, Sr(OH)2, Ba(OH)2, Fe(OH)3, Cu(OH)3, Ni(OH)2, Co(OH)2, Zn(OH)2, AgOH, and mixtures thereof.
Abstract:
Supported perovskite-type oxides are described. The perovskite-type oxides have the general formula of AxAnullxnullByBnullynullO3-null, wherein A is an ion of a metal of Group IIIa or IIIb of the periodic table of elements or mixtures thereof; Anull is an ion of a metal of Groups Ia or IIa of the periodic table or mixtures thereof; B and Bnull are ions of a d-block transition metal of the periodic table or mixtures thereof; x, xnull, y and ynull vary from 0 to 1; 0.95
Abstract:
A material and method for removal of environmental oxyanions (and especially phosphates), the material comprising a substrate such as a clay modified with complexing elements selected from Group IIIB, Group IVB, and lanthanide elements (or a mixture of such elements). The resultant modified substrate can bind oxyanions and make them unavailable for utilisation in the environment; in the case of phosphates, by algae and the like. The method includes forming a capping of material at the sediment/water interface, applying the material in the form of pellets at the sediment/water interface, or injecting the pellets into the sediment.