9 results about "Zircon" patented technology

The present application relates to the technical field of glaze, and particularly relates to a composite zircon white opal frit, a preparation method thereof, super-white glaze using the composite zircon white opal frit and ceramic tile. The raw materials of the composite zircon white opal frit include, in terms of weight parts, quartz 25-40 parts, calcined alumina 5-10 parts, potassium feldspar 20-35 parts, talc 3-10 parts, calcite 5-10 parts, calcium phosphate 5-10 parts, calcined shell 1-5 parts, zirconium boride 7-15 parts, zirconite sand 3-10 parts, kaolin 1-5 parts and zinc oxide 3-10 parts. The raw materials of the composite zircon white opal frit described above can make the composite zircon white opal frit have a high whitening effect; meanwhile, two cooling and holding processes are adopted in the cooling and holding stage, the content of SiO2, P2O5 and MgO in the chemical composition of the composite zircon white opal frit is adjusted, a large amount of fine needle-like MgSiO3 can be generated, and the opalescence and whiteness of the glaze are improved after the obtained composite opal frit is used in the glaze.

This invention discloses a non-stoichiometric sodium iron manganese phosphate cathode material with high phase purity. This sodium iron manganese phosphate cathode material has the following general chemical formula: zMPO4-Na x Fe y Mn a‑y (PO4)2(P2O7) / C, where 3.7≤x≤4.3, 1≤y≤2, 2.92≤a≤3, 0<z≤0.1, and the molar ratio of Na to transition metals Fe and Mn (TM) (Na / TM) is between 1.23 and 1.45, with M being Sc, Y, Ho, or Tb. Through non-stoichiometric design, controllable concentrations of sodium vacancies and interstitial Na are actively introduced into the crystal lattice. + Optimized Na + Transport; then by introducing phosphate MPO4 with zircon-type structure as a diffusion promoter, Mn enrichment is avoided and the formation of NMP impurity phase is reduced, and the phase purity of the material is ≥93%; the synergistic effect of the two greatly improves the capacity and rate performance of the material.

The application relates to the field of investment casting technology, in particular to a silica sol shell and a preparation method thereof. The preparation method comprises the following steps: dipping a mold group into a surface layer coating to perform surface layer coating, and then sprinkling surface layer sand after coating; the surface layer coating comprises surface layer powder, zircon sand and surface layer silica sol; the surface layer powder comprises zirconium powder and fused quartz powder with a mass ratio of 1:0.42-2.34; the mass ratio of the zirconium powder and the zircon sand is 1:0.1-0.2; and the mass ratio of the surface layer powder and the surface layer silica sol is 2.78-3.5:1; dipping the surface layer of the shell into a back layer coating to perform back layer coating, and then sprinkling back layer sand on the surface of the back layer coating after coating; the back layer coating comprises back layer powder and back layer silica sol; the back layer powder comprises kaolin powder and quartz powder with a mass ratio of 1:1.5-1.7; and the mass ratio of the back layer powder and the back layer silica sol is 1:0.9-1.1; and the cost is remarkably reduced when the silica sol shell is prepared by the method.

The present application relates to the technical field of building ceramics, and discloses a zircon white fused block and a preparation method and application thereof, wherein, according to weight parts, the raw materials of the zircon white fused block include kaolin 12-20 parts, zirconium silicate powder 8-15 parts, quartz 30-42 parts, zinc oxide 3-8 parts, calcium phosphate salt 3-8 parts and fluxing components 20-42 parts. The zircon white fused block is rich in a large amount of microcrystalline zirconium oxide, and the zircon white fused block has excellent chemical temperature resistance and a refractive index significantly higher than that of a glass phase, so that a strong reflection and scattering effect is formed in a glaze surface; by introducing the zircon white fused block with high whiteness and high opalescence into a glaze system, the whiteness and opalescence of the fired glaze surface can be more effectively improved.

This invention discloses an ultrathin sintered stone slab, its preparation process, and its application, belonging to the field of building material manufacturing technology. The process includes: wet co-milling spodumene and zircon in an aqueous medium containing a cationic additive to obtain spodumene-zircon composite micropowder; mixing the spodumene-zircon composite micropowder into a bottom layer powder and a top layer powder, and adding a plastic binder to the bottom, core, and top layers; laying the bottom, core, and top layers powder to form an initial powder layer; sequentially subjecting the initial powder layer to low-pressure venting, medium-pressure stress equalization, and high-pressure superimposed high-frequency micro-vibration compaction, with buffering treatment applied to the edges of the powder layer during compaction; drying the green blank after pressure release and demolding, sintering it in a high-temperature range, and cooling it to obtain the finished product; eliminating the stress difference within the green blank, enabling the finished sintered stone slab to maintain high strength while possessing cold bending characteristics with a large radius of curvature at room temperature, thus solving the technical problems of brittle fracture, poor flatness, and insufficient weather resistance in ultrathin sintered stone slabs.

The present application relates to a kind of coal gangue glazed tile and its preparation method, the coal gangue glazed tile includes brick and glaze, the brick according to percentage by weight, including coal gangue 55-60%, red mud 25-30%, kaolinite 10-15%, talcum powder 1-3%, sintering aid 0.1-0.3%;The glaze according to percentage by weight, including 18-20% calcined coal gangue, 25-30% quartz, 20-25% zirconium quartz, 8-10% calcite, 13-15% boric acid, 4-6% borax.The coal gangue glazed tile prepared in the present application uses a large amount of coal gangue as raw material, can effectively utilize the large amount of coal gangue produced in coal production, reduces the pollution of coal gangue to environment;The coal gangue glazed tile produced has excellent breaking strength, glaze crack resistance, pollution resistance and wear resistance;Meanwhile, red mud and talcum powder are used as sulfur-fixing agent, the combustible sulfur in coal gangue can be solidified, effectively reduce the emission of sulfur-containing waste gas, reduce production cost and pollution.

The application provides a refractory material and a preparation method and application thereof and a heat treatment device, wherein the first raw material for preparing the refractory material comprises, in percentage by mass, 23.5%-67.5% of fused zirconia, 10%-20% of zircon mullite, 0%-12% of zirconia, 19%-31% of a stabilizer, 3%-21% of a material containing an aluminum element and 0%-4.5% of an auxiliary agent; the fused zirconia comprises millimeter-level first fused zirconia and micron-level second fused zirconia; through the interaction formed by the specific raw material composition and proportion, the application solves the problem that the refractory material still maintains excellent compressive strength and thermal shock resistance while reducing the apparent porosity and improving the corrosion resistance and other performances, avoids the risk that the refractory material is cracked and cracked during the firing process, and further improves the general range of the refractory material, improves the use effect of the refractory material in a specific application scenario, and better improves the quality of the product.

This invention belongs to the field of isotope geochronology, specifically relating to a laser ablation fractionation method and system for analyzing the U-Pb age, trace elements, and Hf isotopes of zircon. This invention employs wet plasma technology to improve the uranium detection sensitivity of Q-ICP-MS and ensure the consistency of thorium / uranium fractionation behavior, reducing the difficulty of Q-ICP-MS setup. A gas path connection design with different inner diameters replaces the micro diaphragm pump, achieving stable transmission of unequal amounts of aerosol to two mass spectrometers, reducing experimental costs and improving instrument setup efficiency. The acquired data is converted into a time series, and a multi-external standard correction scheme is used to achieve automated and accurate LASS analysis. This invention utilizes LASS technology to conveniently and accurately determine the U-Pb geochronology, trace element, and Hf isotopic composition of zircon simultaneously, which is beneficial for expanding the application of zircon in geological research.