Provided are titanium oxide fine particles which are excellent in transparency and are less photocatalytically active while maintaining a high refractive index, a dispersion of such fine particles, and a method for producing such a dispersion. The method for producing a dispersion of iron-containing rutile titanium oxide fine particles including a step (1) of neutralizing an aqueous metal mineral acid salt solution containing Ti and Fe in Fe.sub.2O.sub.3/(TiO.sub.2+Fe.sub.2O.sub.3)=0.001 to 0.010 to form an iron-containing hydrous titanic acid; a step (2) of adding an aqueous hydrogen peroxide solution to form an aqueous solution of iron-containing peroxotitanic acid having an average particle size of 15 to 50 nm; a step (3) of adding a tin compound so as to satisfy TiO.sub.2/SnO.sub.2=6 to 16; a step (4) of adding a sol of silica-based fine particles which contain Si and a metal element M in SiO.sub.2/MO.sub.x/2=99.9/0.1 to 80/20, the addition being made so as to satisfy SiO.sub.2/(oxides of the other elements)=0.08 to 0.22; and a step (5) of hydrothermally treating the solution obtained in the step (4).

In an aspect, a multiphase ferrite comprises a Co.sub.2W phase that is optionally doped with Ru; a CFO phase having the formula Me.sub.r“Co.sub.1−rFe.sub.2+zO.sub.4, wherein Me” is at least one of Ni, Zn, or Mg, r is 0 to 0.5, and z is −0.5 to 6 0.5; and a CoRu-BaM phase having the formula BaCo.sub.x+yRu.sub.yFe.sub.12−(2/3)x−2yO.sub.19, wherein x is 0 to 2, y is 0.01 to 2; and the Ba can be partially replaced by at least one of Sr or Ca. In another aspect, a composite can comprise a polymer and the multiphase ferrite. In yet another aspect, a method of making a multiphase ferrite can comprise mixing and grinding a CoRu-BaM phase ferrite and a CFO phase ferrite to form a mixture; and sintering the mixture in an oxygen atmosphere to form the multiphase ferrite.

The present invention pertains to an Al—Mg—Si-based aluminum alloy plate comprising, by mass, 0.20-1.50% of Mg, 0.30-2.00% of Si, and 0.005-0.500% of Sn, the balance being Al and unavoidable impurities, wherein the aluminum alloy plate is characterized in having a structure in which, from among all crystallized substances having a circle-equivalent diameter within the range of 0.3-20 μm as measured using a 500×-magnification SEM, crystallized substances containing Sn identified by an X-ray spectrometer have an average number density in the range of 10 per mm.sup.2 to 2,000 per mm.sup.2, the proportion of the aforementioned average number density of the crystallized substances containing Sn in relation to the average number density of all crystallized substances having the circle-equivalent diameter being within the range of 0.3-20 μm is 70% or above. With this aluminum alloy plate, it is possible to improve filiform corrosion resistance without inhibiting moldability or BH properties after room-temperature aging.

The present disclosure relates to oxidized carbon nanoparticles, and a method for producing same. The oxidized carbon nanoparticles are nano-sized spherical particles of oxidized carbon have a C/O atomic ratio from X-ray photoelectron spectroscopy (XPS) of 1 to 9, and the largest fraction of oxygen thereof from XPS is observed in a C—O(OH) bind. The oxidized carbon nanoparticles have better physical properties than typical carbon materials such as graphite or carbon black, and the producing process thereof is economical and environmentally-friendly. Further, the oxidized carbon nanoparticles may be applied as a filling material of an organic/inorganic composite, and when applied as such, is environmentally-friendly, economical, exhibits excellent dispersion properties, and may be immediately used without post-processing, such as functionalization.

A new family of crystalline microporous metalloalumino(gallo)phosphosilicate molecular sieves has been synthesized and are designated high charge density (HCD) MeAPSOs. These metalloalumino(gallo)phosphosilicate are represented by the empirical formula of:

R.sup.p+.sub.rA.sup.+.sub.mM.sup.2+.sub.wE.sub.xPSi.sub.yO.sub.z

where A is an alkali metal such as potassium, R is at least one quaternary ammonium cation such as ethyltrimethylammonium, M is a divalent metal such as Zn and E is a trivalent framework element such as aluminum or gallium. This family of metalloalumino(gallo)phosphosilicate materials are stabilized by combinations of alkali and quaternary ammonium cations, enabling unique, high charge density compositions. The HCD MeAPSO family of materials have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.

Disclosed herein are modified zeolites and methods for making modified zeolites. In one or more embodiments disclosed herein, a modified zeolite may include a microporous framework including a plurality of micropores having diameters of less than or equal to 2 nm. The microporous framework includes at least silicon atoms and oxygen atoms. The modified zeolite may further include organometallic moieties each bonded to bridging oxygen atoms. The organometallic moieties include a hafnium atom. The hafnium atom is bonded to a bridging oxygen atom, and bridging oxygen atom bridges the hafnium atom of the organometallic moiety and a silicon atom of the microporous framework.

The present invention relates to the synthesis of molecular sieves of the STT and ITE framework types using, as structure directing agent Q, [L(DETA)2].sup.2+ cation or [L(TEPA)].sup.2+ cation, or a mixture thereof, where L is a divalent metal cation comprising at least one of Ni, Co and Mn and DETA is diethylene triamine and TEPA is tetraethylene pentamine.

The present invention relates to a method of reducing a metal oxide comprising the steps of preparing a mixture by mixing a metal oxide and a metal hydride (step 1) and reducing the mixture by heat treatment (step 2) and a method of producing a photocatalyst using the same, and The method of reducing a metal oxide of the present invention can easily reduce such metal oxides as TiO.sub.2, ZrO.sub.2, V.sub.2O.sub.3, and Fe.sub.2O.sub.3.

The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.

The present invention is directed to a process for producing an aqueous suspension of precipitated calcium carbonate, wherein a milk of lime is prepared by mixing water, a calcium oxide containing material, and a precipitation enhancer, and subsequently, the milk of lime is carbonated to form an aqueous suspension of precipitated calcium carbonate.