Abstract: A catalytic cracking catalyst contains 10-70 wt % of a cracking active component, 10-60 wt % of a binder and 10-70 wt % of a clay. The cracking active component has 5-100 wt % of a first Y-type molecular sieve and 0-95 wt % of a second molecular sieve. The first Y-type molecular sieve is a modified molecular sieve based on the crystal modification of kaolin and has the sodium oxide content of less than 2 wt %. The process for preparing the catalyst includes the steps of vigorously mixing and stirring a cracking active component comprising a modified molecular sieve based on the crystal modification of kaolin, a binder and a clay with water; spray drying; washing; filtering; and drying. The catalyst is used in the catalytic cracking reaction of heavy oils, and has a good coke selectivity, as well as a higher heavy oil conversion rate.

Abstract: Methods for making an intercalated layered film, intercalated layered films, and devices that include the intercalated layered films. In the method, in a first step, a suspension of a dispersed two-dimensional compound in a fluid is filtered through a filtration medium to provide a layered film of the two-dimensional compound on the filtration medium, and in a second step, filtering a solution of an intercalant in a solvent through the layered film of the two-dimensional compound on the filtration medium to provide the intercalated layered film.

Abstract: A method can be employed to regulate and stably operate a steam reforming system that is operated by steam reforming, that has a capacity utilization level that can be regulated, and that comprises a steam reformer, a hydrogenating and desulfurizing unit that is positioned upstream of the steam reformer and is configured for feedstock desulfurization, and a firing unit of the steam reformer. According to the method, a mandated capacity utilization level for the steam reforming system is established with automated regulation of the following continuously monitored parameter ratios: a hydrogen-to-feedstock ratio in the hydrogenating and desulfurizing unit, a steam-to-carbon ratio in the steam reformer, and a fuel-to-air ratio in the firing unit of the steam reformer.

Abstract: A reactor system, which is active in pyrolyzing methane at effective conditions, comprising a molten salt medium and a reaction vessel, the molten salt being contained within the reaction vessel using various methods of catalyst distribution within the vessel such that when methane passes through the vessel, it comes into contact with said catalyst causing a pyrolysis reaction thereby producing molecular hydrogen with reduced carbon dioxide emissions. The catalyst may be placed within the reaction vessel either as suspended particles or in a structured packed form.

Abstract: A catalyst is provided for fuel reformation with its preparation method. The catalyst is an oxide catalyst of nickel (Ni), lanthanum (La), and cerium (Ce); and is loaded on a honeycomb support substrate. The catalyst comprises an oxide layer of Ni and La; and an oxide layer of Ce between the honeycomb support substrate and the oxide layer of Ni and La. The oxide layer of Ni and La comprises a 10˜20 weight percent (wt %) of Ni and a 1˜20 wt % of rare earth element La. The oxide layer of Ce comprises a 1˜20 wt % of rare earth element Ce. The present invention is applied to solid oxide fuel cell (SOFC) for enhancing the methane conversion rate, heightening the reliability and durability of long-term operation, and improving the energy use efficiency.

Abstract: A hydrocarbon reforming catalyst used for forming a synthetic gas containing hydrogen and carbon monoxide from a hydrocarbon-based gas, the hydrocarbon reforming catalyst containing a complex oxide having a perovskite structure, wherein the complex oxide has a crystal phase containing SrZrO3 as a primary component and contains Ru.

Abstract: Provided is a composition for catalyst production which is used in the production of a catalyst for gas phase catalytic oxidation reaction or a catalyst for gas phase catalytic ammoxidation reaction, wherein the composition for catalyst production is an aqueous solution containing a niobium compound and hydrogen peroxide and optionally containing an organic acid, a molar ratio (organic acid/Nb) of a concentration of the organic acid to a Nb concentration is 0.00 or more and 2.00 or less, and a molar ratio (hydrogen peroxide/Nb) of a concentration of the hydrogen peroxide to a Nb concentration is 0.01 or more and 50 or less.

Abstract: Disclosed is a method of synthesizing a molecular sieve of MWW framework type, and molecular sieves so synthesized. The method comprises preparing a synthesis mixture for forming a molecular sieve of MWW framework type, said synthesis mixture comprising water, a silicon source, a source of a trivalent element X, a potassium cation source, a structure directing agent R, and a source of another alkali metal cation M.

Abstract: The present invention discloses a method for the separation of radionuclides from an aqueous radioactive waste solution, the method comprising: receiving of an aqueous radioactive waste solution, adding at least one zirconium salt to the aqueous radioactive waste solution, changing the pH of the radioactive waste solution to obtain a precipitate P, and separating the precipitate P from the radioactive waste solution. The present invention also discloses the use of zirconium salts, preferably zirconium oxychloride, zirconium nitrate or a zirconium oxynitrate or any mixture thereof, for the treatment of aqueous radioactive waste solution, preferably acidic or alkaline intermediate or low level radioactive waste solution, preferably an acidic intermediate and/or low level radioactive waste solution.

Abstract: There is provided with a carbon dioxide treating method capable of suppressing a decrease in the content of a hydrocarbon contained in natural gas before and after removal of carbon dioxide. A method for treating carbon dioxide contained in natural gas comprises: preparing an aqueous dispersion containing magnesium hydroxide and acetonitrile; bringing the aqueous dispersion and the natural gas into contact with each other; and making the magnesium hydroxide and the carbon dioxide react with each other, wherein the aqueous dispersion further contains metal hydroxides, and the metal hydroxides include barium hydroxide, zinc hydroxide, sodium hydroxide, and calcium hydroxide.

Abstract: To produce aluminum nitride in the form of a lump that can easily be broken down by light pulverization, which could not be obtained by a conventional combustion synthesis method. A method for producing aluminum nitride powder by a combustion synthesis method using a metallic aluminum powder, characterized in that a powder mixture in which an aluminum nitride powder having an average primary particle diameter of 3 ?m or less as a diluent is mixed with a metallic aluminum powder in a ratio of 150 to 400 parts by mass of the aluminum nitride powder relative to 100 parts by mass of the metallic aluminum powder, is ignited to combust in a nitrogen atmosphere.

Abstract: A method of making a mesoporous zeolite may include combining an initial zeolite with cetyltrimethylammonium bromide to form an initial zeolite mixture. The method may also include adding ammonium hexafluorosilicate and ammonium hydroxide to the initial zeolite mixture to form a treated zeolite mixture. The method may also include heating the treated zeolite mixture to form the mesoporous zeolite.

Abstract: A system for separating a mineral from a clay using a gas injection module includes a solution tank configured to receive a supersaturated solution including at least one mineral. The system also includes a gas injection module in fluid communication with the solution tank and configured to receive at least a portion of the supersaturated solution. The system includes at least one gas injection port in fluid communication with a source of gas and the gas injection module. The gas injection port is configured to inject a gas to the supersaturated solution. During operation of the system, the gas causes at least a portion of the supersaturated solution to crystallize.

Abstract: A method of forming a carbon molecular sieve membrane includes dissolving a halogenated precursor polymer in a solvent, thereby forming a dissolved halogenated precursor polymer. Homogeneously dehydrohalogenating the dissolved halogenated precursor polymer with an organic amine base to form a partially dehydrohalogenated polymer. Forming a thin film from the partially dehydrohalogenated polymer. Pyrolyzing the thin film to form the carbon molecular sieve membrane.

Abstract: The present invention relates to a method of recovering iridium in the form of iridium solutions, metal, oxides or salts from a body, such as a spent catalyst, comprising iridium oxides.

Abstract: The present application relates to a method of preparing magnetite nanoparticles. In particular, it relates to a method of preparing magnetite (Fe3O4) nanoparticles wherein a gas-liquid reaction interface between an ammonia gas (NH3(g)) headspace and an aqueous ferrous (Fe2+) and ferric (Fe3+) iron salts solution is established and without agitation magnetite (Fe3O4) nanoparticles are formed. The present application also includes magnetite nanoparticles prepared by the method and to uses thereof, for example, for extracting one or more analytes from a sample.

Abstract: Silica particles includes a nitrogen-containing compound. The ratio of the integral C of a signal observed at a chemical shift of ?50 ppm or more and ?75 ppm or less in a 29Si solid-state nuclei magnetic resonance (NMR) spectrum of the silica particles, the 29Si solid-state NMR spectrum being obtained by cross polarization/magic angle spinning (CP/MAS), to the integral D of a signal observed at a chemical shift of ?90 ppm or more and ?120 ppm or less in the 29Si solid-state NMR spectrum, that is, C/D, is 0.10 or more and 0.75 or less. The amount X of the nitrogen-containing compound extracted from the silica particles with a mixed solution of ammonia and methanol is 0.1% by mass or more. The amount X of the nitrogen-containing compound extracted and the amount Y of the nitrogen-containing compound extracted from the silica particles with water satisfy Y/X<0.3.

Abstract: In a method for recovering an active metal of a lithium secondary battery, a cathode active material mixture is prepared from a cathode of a lithium secondary battery. A first reductive process using a first reductive reaction gas and a second reductive process using a second reductive reaction gas that has a higher reaction source concentration than that of the first reductive reaction gas are performed sequentially and continuously to convert the cathode active material mixture into a preliminary precursor mixture. A lithium precursor is recovered from the preliminary precursor mixture. A lithium recovery ratio may be increased by a stepwise reduction while preventing an increase of heating value.

Abstract: A hydrocarbon reforming catalyst that is used in production of a synthesis gas containing hydrogen and carbon monoxide from a hydrocarbon-based gas includes a composite oxide having a perovskite structure, wherein the composite oxide has at least one crystal phase among a first crystal phase containing BaZrO3 as a main component and a second crystal phase containing BaCeO3 as a main component, and contains Rh.

Abstract: The present invention relates to a method for recovering lithium from brine, and provides a method for recovering lithium from brine, the method comprising: (a) an impurity removal step of adding a carbonate supply source to brine including lithium, magnesium and calcium to precipitate and remove magnesium and calcium impurities; (b) a pH adjusting step of adding an acid to the brine from which the impurities have been removed, to adjust the pH of the brine; (c) a lithium-aluminum compound recovery step of adding an aluminum supply source to the pH-adjusted brine to recover a lithium-aluminum compound; (d) a lithium sulfate and aluminum oxide formation step of adding the lithium-aluminum compound to a sulfur supply source and calcining same to form lithium sulfate and aluminum oxide; and (e) a lithium sulfate solution yield step of selectively dissolving lithium sulfate from among the formed lithium sulfate and aluminum oxide to yield a lithium sulfate solution.