72results about How to "Reduce alkali metal content" patented technology

The process for preparing tubular titanium oxide particles comprises subjecting a water dispersion sol, which is obtained by dispersing (i) titanium oxide particles and / or (ii) titanium oxide type composite oxide particles comprising titanium oxide and an oxide other than titanium oxide in water, said particles having an average particle diameter of 2 to 100 nm, to hydrothermal treatment in the presence of an alkali metal hydroxide. After the hydrothermal treatment, reduction treatment (including nitriding treatment) may be carried out. The tubular titanium oxide particles obtained in this process are useful as catalysts, catalyst carriers, adsorbents, photocatalysts, decorative materials, optical materials and photoelectric conversion materials. Especially when the particles are used for semiconductor films for photovoltaic cells or photocatalysts, prominently excellent effects are exhibited.

A binder for an electric double layer capacitor electrode, which includes a copolymer (A) including monomer units derived from at least one compound (a) represented by the following general formula (1): CH2═CR1—COOR2 (1) wherein R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group or a cycloalkyl group, the glass transition temperature obtained by homopolymerizing the compound (a) being less than 0° C., and monomer units derived from at least one compound (b) selected from acrylic acid alkyl esters, methacrylic acid alkyl esters, aromatic vinyl compounds, and α,β-unsaturated nitrile compounds, the glass transition temperature obtained by homopolymerizing the compound (b) being 0° C. or higher, wherein the total content of the monomer units derived from the compound (a) and those derived from the compound (b) is 90% or more by weight per 100% of the whole copolymer (A), and the glass transition temperature of the copolymer (A) is 10° C. or lower, which binder is excellent in smoothness, crack resistance and binding properties.

The invention belongs to the technical field of blast furnace ironmaking, and particularly discloses a method for carrying out blast furnace blowing on biomass hydrothermal carbon. The method solves the problem that an optimal utilization method of biomass resources in blast furnace blowing process. The method can also be used for heat treatment of waste plastics, waste rubbers and other municipalcombustible solid waste water to prepare the hydrothermal carbon and the method can be efficiently applied to determination of a blast furnace blowing scheme. Under the condition that the influencesof biomass hydrothermal carbonization treatment, biomass hydrothermal carbon powder preparing, conveying and blowing on blast furnace smelting key process parameters are considered, the optimal utilization method for carrying out blast furnace blowing on biomass hydrothermal carbon is formed. According to the method, the system is analyzed by aiming at different biomass hydrothermal carbon, important assessment index of the blast furnace smelting downstream behavior is adopted, and the safe and efficient blast furnace blowing on the biomass hydrothermal carbon is realized, so that the comprehensive utilization efficiency of biomass resources is improved, and the emission of CO2 produced by the ironmaking is reduced.

Fire resistant glazings having improved properties comprising a silicate based interlayer which contains from 35% to 43% by weight of water may be produced using a cast in place process. The amount of water in the interlayer is reduced by concentrating the silicate solution or by introducing silica in the form of a silica sol. Preferably a mixture of an aqueous sol and an organosol is used. Polyhydroxy compounds and saccharides may be incorporated into the interlayer to improve the properties thereof and to reduce the water content. The silicate based formulations are pourable and can be used in a cast in place production process and subsequently cured to form an optically clear interlayer.

The invention discloses a novel glass fiber vacuum insulation panel core. The vacuum insulation panel core is made of low-boron glass cellucotton which has the boric mass percentage of less than 0.5% and the diameter of 0.5-1.0 micrometer. The invention further discloses a preparation method of the vacuum insulation panel core, which comprises the following steps of: (1) selecting the low-boron glass cellucotton, (2) beating and dispersing the selected low-boron glass cellucotton to obtain slurry, (3) diluting the slurry, (4) deslagging the slurry of Step (3) and preparing wet paper in a wet forming manner, (5) dehydrating the wet paper of Step (4); and (6) drying the wet paper of Step (5). The glass fiber air filtration paper has outstanding comprehensive performances; the preparation process is pollution-free; and the service life is long.