53 results about "Titanium(III) oxide" patented technology

The invention relates to Group 1 metal / porous metal oxide compositions comprising porous metal oxide selected from porous titanium oxide and porous alumina and an alkali metal or an alkali metal alloy. The compositions of the inventions are described as Stage 0 and I materials. These materials differ in their preparation and chemical reactivity. Each successive stage may be prepared directly using the methods described below or from an earlier stage material. Stage 0 materials may, for example, be prepared using liquid alloys of Na and K which are rapidly absorbed by porous metal oxide under isothermal conditions, preferably at or just above room temperature, to form loose black powders that retain much of the reducing ability of the parent metals. When the low melting Group 1 metals are absorbed into the porous metal oxide at about 150° C., an exothermic reaction produces Stage I material, loose black powders that are stable in dry air. Further heating forms higher stage materials of unknown composition. It is believed that Stage I higher materials represent reductions of the porous metal oxide after absorption of the Group 1 metal. Preferred Group 1 metal / porous metal oxide compositions of the invention are those containing sodium, potassium, or sodium-potassium alloys with sodium and sodium-potassium alloys being most preferred. Each stage of the Group 1 metal / porous metal oxide composition of the invention may be used as a reducing agent reacting with a number of reducible organic materials in the same manner known for alkali metals and their alloys.

The invention relates to a titanium oxide / tungsten oxide nano-composite film on the surface of metallic titanium, preparation and an application. The metallic titanium is cleaned and etched, then the metallic titanium is impregnated in an oxidation liquid containing peroxotungstic acid sol and hydrogen peroxide and is kept for a period of time at a certain temperature, a titanic acid and peroxotungstic acid containing nano-film formed through crystal in-situ growth and deposition is obtained, and finally, the titanium oxide / tungsten oxide nano-composite film on the surface of the metallic titanium is obtained through calcination; the film mainly comprises a titanium dioxide and tungsten trioxide compound with a nanobelt structure, the nanobelt width is in a range from 10 nm to 150 nm, and the length is in a range from 0.5 mu m to 20 mu m; the mass percentage of titanium oxide is in a range from 1% to 99.5%, and titanium oxide mainly adopts a rutile or anatase crystalline phase; the mass percentage of tungsten oxide is in a range from 0.5%-99%, and tungsten oxide mainly adopts a hexagonal or monoclinic crystal phase. Compared with the prior art, the preparation is simple and easy and is suitable for large-scale industrial production; the prepared titanic oxide film has important application value in the related fields of photoelectrocatalysis, metal corrosion prevention, electrochemical sensing and the like.

The invention relates to a method for preparing an anti-oxidation coating on the surface of carbon fibers, comprising the following steps: 1) adding polycarbosilane to xylene, stirring and dissolving to prepare a precursor solution; 2) placing carbon fibers in the precursor obtained in step 1) step 1 immersion in the body solution, followed by curing treatment at 185 ° C for 2 hours to obtain a preform; 3) the preform obtained in step 2) was placed in a xylene solution dissolved in tetraethyl orthosilicate and boric acid for immersion treatment, and then at 150 ℃ curing treatment for 1 hour; 4) pyrolyzing the preform obtained in step 3). This method prepares silicon carbide / titanium oxide + boron oxide coating on the surface of carbon fiber. During the cracking process, titanium oxide and boron oxide fill the cracks and gaps of silicon carbide. At the same time, the diffusion rate of oxygen in titanium oxide and boron oxide is very low, which greatly improves oxidation resistance of carbon fibers.

The optical recording medium of the invention comprises a recording layer and at least one mixed dielectric layer. The mixed dielectric layer contains cerium oxide and an additive compound. The additive compound is at least one compound selected from among aluminum oxide, chromium oxide, iron oxide, manganese oxide, niobium oxide, magnesium oxide, zinc oxide, titanium oxide, yttrium oxide, tantalum oxide, antimony oxide, zirconium oxide, bismuth oxide and magnesium fluoride. The optical recording medium has a high storage reliability and satisfactory recording / reading characteristics.

The invention relates to a method for preparing a titanium sesquioxide material. The method is characterized in that a preparation process uses titanium dioxide and graphite as basic raw materials and carries out the preparation by a hot reduction reaction. The method for preparing the titanium sesquioxide material of the invention uses titanium dioxide and graphite as basic raw materials and carries out the preparation by a high temperature thermal reduction method. The titanium sesquioxide is prepared directly by a one-step carbothermic process, so as to save technological steps and reduce usage of a restorable harmful substance titanium tetrachloride. Therefore, the method reduces cost as well as mitigates environmental pollution.

The invention provides an organic conductive coating and a preparation method thereof, wherein the organic conductive coating comprises the following components in parts by weight: 8-15 parts of graphite, 1-6 parts of titanium dioxide, 0.05-0.15 part of antimony trioxide, 0.3-1.2 parts of magnesium oxide, 0.5-1.8 parts of lead oxide, 1-5 parts of titanium sesquioxide, 10-30 parts of alkyd resin, 0.2-0.8 part of silicone oil, 0.05-0.12 part of xylene, 0.1-0.8 part of epoxy resin and 0.3-0.7 part of barium carbonate. The preparation method comprises the following steps: firstly uniformly mixing the graphite, the titanium dioxide, the antimony trioxide, the magnesium oxide, the lead oxide, the titanium sesquioxide and the barium carbonate, then adding the alkyd resin, the epoxy resin and the silicone oil, uniformly stirring, further adding the xylene and uniformly mixing for preparation. The organic conductive coating provided by the invention has high adhesion force of above 98%, which is better than similar products; and furthermore, the electric conductivity is good, and the electric resistance is less than 60 ohm.

The invention discloses a lanthanum-doped titanium trioxide coated co-modified lithium zinc titanate composite material and a preparation method thereof. The molecular formula of the composite material is Li(2-x)LaxZnTi3O8@Ti2O3, wherein x is 0.03-0.05; and the composite material is formed by mixing and sintering lithium salt, a lanthanum source, a zinc source and a titanium source according to the mass ratio: nLi:nLa:nZn:nTi=(2-2.3)-x:x:1:3. The composite material disclosed by the invention is high in specific discharge capacity and good in cycle and rate performance, and the preparation method is simple, convenient, rapid, low in energy consumption, low in cost and environment-friendly; and the prepared composite material can be widely applied to lithium ion batteries and lithium ion capacitor negative electrode materials, and has a relatively good application prospect.

The invention discloses a method for preparing a pure phase bismuth titanate and titanium oxide composite material by using an alcohol heat method. The method comprises the following steps: adding a bismuth nitrate solid in a mixed solvent of glycerin and ethyl alcohol the volume ratios being (0.05-0.2) to 1, fully dissolving the bismuth nitrate solid in the mixed solvent, dropwise adding tetrabutyl titanate in the solution, stirring and carrying out ultrasonic treatment on the solution, transferring the mixed solution in a reaction kettle, arranging the reaction kettle in a 110-150 DEG C constant temperature oven and reacting for 18-24h, cooling, filtering and drying a mixture in the reaction kettle, burning the mixture in a procedure temperature control furnace for 1-3h under 500-600 DEG C, and preparing the pure phase bismuth titanate and titanium oxide composite material. The method provided by the invention has the advantages that the bismuth titanate and titanium oxide composite material with different types and shapes are obtained by controlling, bismuth titanate comprises a pure phase Bi4Ti3O12, Bi2Ti2O7 or Bi2TiO32, and the shape of the composite material comprises a globular shape, a petal shape, a three-dimensional layer shape and a piece shape and the like.

The present invention is one or more processes for producing separable iron and titanium oxides from an ore comprising titanium oxide and iron oxide, comprising: (a) forming agglomerates comprising carbon-based material and the ore, the quantity of carbon of the agglomerates being at least sufficient for forming a ferrous oxide-containing molten slag, at an elevated temperature; (b) introducing the agglomerates onto a bed of carbon-based material in a moving hearth furnace, wherein the carbon-based materials used for both the agglomerates and the bed have a low sulfur content; (c) heating the agglomerates in the moving hearth furnace to a temperature sufficient for liquefying the agglomerates to produce a liquid comprising ferrous oxide-containing slag; (d) metallizing the ferrous oxide of the slag by reaction of the ferrous oxide and the carbon of the carbon bed at a furnace temperature sufficient for maintaining the slag in a liquid state; (e) solidifying the slag after metallization of the ferrous oxide to form a matrix of titanium oxide-rich slag having a plurality of metallic iron granules distributed there through; and (f) separating the metallic iron granules from the slag, the slag comprising greater than 85% titanium dioxide based on the entire weight of the matrix after separation of the metallic iron.

An optical recording medium includes an inorganic recording layer, a first protective layer provided on at least one surface of the inorganic recording layer and containing indium oxide, and a second protective layer provided so as to be adjacent to the first protective layer and containing titanium oxide, zirconium oxide, or tin oxide.