In producing titanium oxide containing rutile-type crystals by adding hydrochloric acid to an aqueous dispersion of an alkali metal titanate, sulfurous acid, disulfurous acid, sulfuric acid or a salt thereof is added. Thus, there is provided a titanium oxide powder which is doped with bivalent sulfur atoms (S.sup.2−) and in which a ratio (I.sub.A/I.sub.R) of a peak intensity (I.sub.A) of anatase-type crystals to a peak intensity (I.sub.R) of rutile-type crystals as measured by X-ray diffractometry is 0.1 or less. Moreover, a cosmetic is provided by dispersing the titanium oxide powder in a dispersion medium. Thus, bluish color derived from Rayleigh scattering is negated, providing a dispersion, particularly a cosmetic, with excellent transparency and color tone.

The present development is a process for the preparation of nanowire synthesis, coatings and uses thereof. Lithium titanate (LTO) nanowires are synthesized using a continuous hydrocarbon/plasma flame process technology combined with the dry impregnation method. The resulting LTO nanowires can be used as electro active anode materials for lithium ion batteries. The coating parameters, such as thickness, porosity of the film, packing density, and viscosity are controlled using the length of the nanowires, calendaring pressure, and slurry composition.

The present development is a process for the preparation of nanowire synthesis, coatings and uses thereof. Lithium titanate (LTO) nanowires are synthesized using a continuous hydrocarbon/plasma flame process technology combined with the dry impregnation method. The resulting LTO nanowires can be used as electro active anode materials for lithium ion batteries. The coating parameters, such as thickness, porosity of the film, packing density, and viscosity are controlled using the length of the nanowires, calendaring pressure, and slurry composition.

A pigmentary particulate material selected from the group consisting of titanium dioxide, doped titanium dioxide, and a mixture of titanium dioxide and doped titanium dioxide. The pigmentary particulate material has a mean crystal size of from 0.3 to 0.5 microns, a crystal size distribution such that ≥40 wt.-% of the pigmentary particulate material has a crystal size of from 0.3 to 0.5 microns, and a ratio of a mean particle size to the mean crystal size of ≤1.25.

An array of transition metal tubular architectures, where the transition metal tubular architectures are comprised of a transition metal oxide, sulfide, or selenide, and wherein transition metal tubular architectures are less than 100 nm in length. The transition metal tubular architectures can be at least partially crystalline. Within the array of transition metal tubular architectures, at least 80% of the transition metal tubular architectures can be less than 100 nm in length.

An array of transition metal tubular architectures, where the transition metal tubular architectures are comprised of a transition metal oxide, sulfide, or selenide, and wherein transition metal tubular architectures are less than 100 nm in length. The transition metal tubular architectures can be at least partially crystalline. Within the array of transition metal tubular architectures, at least 80% of the transition metal tubular architectures can be less than 100 nm in length.

The present disclosure broadly relates to a process for recovering vanadium, iron, titanium and silica values from vanadiferous feedstocks. More specifically, but not exclusively, the present disclosure relates to a metallurgical process in which vanadium, iron, titanium and silica values are recovered from vanadiferous feedstocks such as vanadiferous titanomagnetite, iron ores, vanadium slags and industrial wastes and by-products containing vanadium. The process broadly comprises digesting the vanadiferous feedstocks into sulfuric acid thereby producing a sulfation cake; dissolving the sulfation cake and separating insoluble solids thereby producing a pregnant solution; reducing the pregnant solution thereby producing a reduced pregnant solution; and crystallizing ferrous sulfate hydrates from the reduced pregnant solution, producing an iron depleted reduced solution. The process further comprises removing titanium compounds from the iron depleted reduced solution thereby producing a vanadium-rich pregnant solution; concentrating vanadium and recovering vanadium products and/or a vanadium electrolyte.

The present disclosure broadly relates to a process for recovering vanadium, iron, titanium and silica values from vanadiferous feedstocks. More specifically, but not exclusively, the present disclosure relates to a metallurgical process in which vanadium, iron, titanium and silica values are recovered from vanadiferous feedstocks such as vanadiferous titanomagnetite, iron ores, vanadium slags and industrial wastes and by-products containing vanadium. The process broadly comprises digesting the vanadiferous feedstocks into sulfuric acid thereby producing a sulfation cake; dissolving the sulfation cake and separating insoluble solids thereby producing a pregnant solution; reducing the pregnant solution thereby producing a reduced pregnant solution; and crystallizing ferrous sulfate hydrates from the reduced pregnant solution, producing an iron depleted reduced solution. The process further comprises removing titanium compounds from the iron depleted reduced solution thereby producing a vanadium-rich pregnant solution; concentrating vanadium and recovering vanadium products and/or a vanadium electrolyte.

Porous metal oxide microspheres are prepared via a process comprising forming a liquid solution or dispersion of polydisperse polymer nanoparticles and a metal oxide; forming liquid droplets from the solution or dispersion; drying the liquid droplets to provide polymer template microspheres comprising polymer nanospheres and metal oxide; and removing the polymer nanospheres from the template microspheres to provide the porous metal oxide microspheres. The porous microspheres exhibit saturated colors and are suitable as colorants for a variety of end-uses.

A hydroximic acid-metal hydroxide coordination complex and preparation and application thereof are disclosed. The hydroximic acid-metal hydroxide coordination complex is formed by a coordination of hydroximic acid with divalent or higher valent metal ions under an alkaline condition. The hydroximic acid-metal hydroxide coordination complex has a strong selectivity and a strong collection ability for metal oxide minerals such as tungsten-containing minerals, ilmenite, rutile, cassiterite, and rare earth. The preparation method is simple and low in costs, and is beneficial to industrialized production.