75 results about "Zirconium compounds" patented technology

The invention discloses a polyamide composite material as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The invention provides a polyamide composite material. The polyamide composite material comprises the following components in parts by weight: 30-60 parts of polyamide resin, 12-32 parts of a brominated flame retardant, 4-12 parts of organic phosphinate, 0.1-1 part of a zirconium compound, 0-50 parts of glass fibers, 0-3 parts of an antioxidant and 0-3 parts of a lubricant, and the particle size D50 of the zirconium compound is 0.08-2 [mu] m. According to the antimony-free halogen-containing flame-retardant polyamide composite material provided by the invention, a traditional bromine-antimony flame-retardant system is synergistically replaced by the organic phosphinate and the zirconium compound, and the prepared polyamide composite material has excellent mechanical properties, flame retardance and thermal decomposition stability.

According to one aspect of the present invention, a method for preparing a zirconium-doped ternary positive electrode material is provided, comprising the following steps: S1. According to the stoichiometric ratio of each element in the zirconium-doped ternary positive electrode material, a first precursor is prepared by a first coprecipitation reaction using a soluble nickel salt, a soluble cobalt salt and a soluble salt containing the M element, wherein the first precursor contains nickel element, cobalt element and M element, wherein the M element includes at least one of manganese element and aluminum element; S2. A zirconium-containing compound is deposited on the surface of the first precursor by a second coprecipitation reaction to obtain a second precursor; S3. According to the stoichiometric ratio of each element in the zirconium-doped ternary positive electrode material, the second precursor is mixed with a lithium source to obtain a third precursor, and the third precursor is calcined by a high-temperature solid phase method to obtain the zirconium-doped ternary positive electrode material.

Provided is a hard coating film for foldable displays that does not form creases or cracks in the folding portion, and that is also excellent in reducing iridescent colors (interference mottling) caused by fine cracks in an easy-to-adhere resin layer or other layers. The hard coating film for foldable displays contains a polyester film having a thickness of 10 to 80 μm, an easy-to-adhere resin layer, and a hard coating layer, the easy-to-adhere resin layer and the hard coating layer being stacked in this order on at least one surface of the polyester film, wherein the easy-to-adhere resin layer is a cured product of a composition containing at least one compound selected from the group consisting of titanium compounds and zirconium compounds and a polyester resin, and the polyester film having the easy-to-adhere resin layer stacked thereon but not yet having the hard coating layer stacked thereon satisfies characteristics within specific ranges.

The invention relates to the technical field of cable materials, and particularly discloses a low-smoke halogen-free flame-retardant cable material and a preparation method thereof. The low-smoke halogen-free flame-retardant cable material is prepared from 100 parts of polyolefin blended resin, 10 to 20 parts of polyphenyl ether, 3 to 8 parts of glycidyl methacrylate grafted POE, 1 to 3 parts of hyperbranched polyesteramide, 50 to 80 parts of a flame retardant, 5 to 15 parts of silicone powder, 0.5 to 1.5 parts of an antioxidant and 0.05 to 0.2 part of an organic zirconium compound. The preparation method comprises the following steps: uniformly mixing the raw materials to obtain a mixture; and adding the mixture into a twin-screw extruder, carrying out melt extrusion by the twin-screw extruder, cooling, granulating, and drying to obtain the low-smoke halogen-free flame-retardant cable material. The mechanical property and temperature resistance of the low-smoke halogen-free flame-retardant cable material can be improved.

The invention discloses a method for preparing high-zirconium-content silicon carbide from lignite, and relates to a preparation method of high-zirconium-content silicon carbide. The invention aims to solve the problems of non-uniform product distribution and poor performance improvement effect caused by the fact that zirconium compounds are introduced by adding the zirconium compounds into existing silicon carbide in the later period. The method comprises the following steps: 1, preparing a zirconic acid organic matter solution; 2, uniformly mixing a silicon source and lignite powder, adding the mixture into the zirconic acid organic matter solution, quickly adding deionized water, and stirring and reacting at room temperature; 3, high-temperature calcination; 4, removing carbon; and 5, grinding, sieving and carrying out ultrasonic treatment. The method is used for preparing the high-zirconium-content silicon carbide from the lignite.

The application relates to the technical field of textiles, and particularly discloses a plastic fiber deodorizing master batch and a preparation method thereof.A plastic fiber deodorizing master batch, according to mass percentage, raw materials include 50-87% plastic chips, 5-20% zinc oxide, 5-20% zirconium compound composite powder and 3-10% composite dispersant, the zirconium compound composite powder includes zirconium hydroxide and layered zirconium phosphate.The plastic fiber deodorizing master batch can efficiently adsorb and decompose various odors such as ammonia, acetic acid, isoamyl acid and nonenal, has a wider deodorization spectrum, a higher elimination rate and stronger deodorization durability.

To provide a method for producing a reduction catalyst precursor that exhibits high activity without using a stabilizing agent, such as a rare earth element, and without generating a large amount of NOx during calcination.SOLUTION: A method for producing a reduction catalyst material includes: a neutralization step of neutralizing a nickel-containing compound, a zirconium-containing compound, and an alkali carbonate in the presence of a sulfate ion; a step of filtering and water-washing the product obtained in the neutralization step to remove a water-soluble component; and a step of heat-treating the product after the removal step. The content of Na2O in the oxide obtained by the heat treatment step is 1.0 mass% or less, and the content of SO3 is 0.5 mass% or less.SELECTED DRAWING: None

The application discloses a high-nickel positive electrode material and a preparation method and application thereof, and belongs to the technical field of new energy sources. x Co y M z M´ w O2 and a porous base material and a gap-filling substance, wherein 0.80<=x<=0.98, 0.02<=y<=0.20, 0<=z<=0.06, 0<w<=0.02; x+y+z+w=1; M is at least one of Mn and Al, M´ is at least one of Y, Sr, La, B, Mg and Ti; the gap-filling substance exists in the inside of the pores and comprises a sintered product derived from an additive B, the additive B comprises a zirconium-containing compound and at least one of a tungsten-containing compound, an antimony-containing compound and a bismuth-containing compound. The high-nickel positive electrode material has excellent long cycle performance and rate performance. The application further provides a preparation method and application of the high-nickel positive electrode material.

The invention relates to the field of extraction of uranium from seawater and new materials, and particularly provides a bis-naphthyl anthracene compound, a synthesis method of the bis-naphthyl anthracene compound and application of the bis-naphthyl anthracene compound to preparation of uranium extraction MOF (30-Zr) from seawater, and the prepared bis-naphthyl anthracene compound is 4-[10-(4-carboxyl naphthalene-1-yl) anthracene-9-yl] naphthalene-1-formic acid (H2NAN). The MOF (30-Zr) with ultrahigh stability is synthesized by taking H2NAN as a ligand and a zirconium-containing compound through a one-pot method, so that the stability of the material is ensured, the material has very high uranium adsorption capacity, and a new direction is provided for using the MOF as a material for extracting uranium from seawater.

The invention discloses a composite ceramic material as well as a preparation method and application thereof. The composite ceramic material comprises an inner core and a shell layer, the shell layer coats at least part of the surface of the inner core; the inner core is prepared from raw materials including aluminum oxide, first YSZ ceramic and second YSZ ceramic; the shell layer is prepared from raw materials including a zirconium compound and a first binder. The first YSZ ceramic with the high yttrium content and the second YSZ ceramic with the low yttrium content are matched, a toughening synergistic mechanism combining a metastable region with non-uniform grain boundary Y enrichment is constructed, and compared with a traditional uniform doping method, the forming effect of the composite ceramic material can be remarkably improved; the fracture toughness and the bending strength are effectively improved on the premise that the sintering density and the hardness are not obviously influenced; and moreover, by forming the core-shell structure, the microstructure can be optimized, and synergistic improvement of strength and toughness is macroscopically realized.

The invention discloses an N-alkanoyl alkylamide hafnium / zirconium mixed complex as well as a preparation method and application thereof. Under the protection of inert gas, quantitative N-alkanoyl alkylamide and a tetra (diamine) hafnium / zirconium compound are added into an anhydrous solvent; adding an anhydrous solvent, reacting for a period of time, filtering, and removing the solvent and byproducts from the filtrate by reduced pressure distillation to obtain a white solid; and recrystallizing and sublimating the white solid to obtain the target metal complex. The precursor of the complex is a mononuclear compound formed by the ligand with large steric hindrance, and has good volatility and appropriate thermal stability, the synthesized product has small pollution to the substrate, the synthesis method is simple and convenient, the process operation is simple, the yield is high, the cost is low, and the complex has good application value in the field of preparation of high-K materials.

The present application belongs to the technical field of semiconductors, and particularly relates to a zirconium compound, a precursor composition containing the same, a thin film and a preparation method thereof. The zirconium compound has a chemical formula shown in formula 1, wherein R1, R2, R3 and R4 are each independently selected from one of H, methyl, ethyl or propyl. In the present application, nucleophilic substitution occurs between a pyrrole alkali metal salt and zirconium tetrachloride, and then the zirconium compound containing a cyclopentadiene and a pyrrole group is formed by reacting with cyclopentadiene. Compared with (cyclopentadienyl)tris(dimethylamino)zirconium, the zirconium compound has excellent thermal stability and excellent reactivity and volatility, which is helpful to form a high-purity low-impurity and uniform thin film, and greatly improves the quality of the thin film.

The invention discloses a method for preparing zirconium oxide by electrolyzing zirconium-containing reaction liquid, belongs to the technical field of inorganic chemical engineering, and mainly aims at efficiently preparing high-purity zirconium oxide in an environment-friendly and low-cost manner. According to the main technical scheme, the method for preparing zirconium oxide through electrolysis of the zirconium-containing reaction liquid comprises the steps that the zirconium-containing reaction liquid is prepared from a zirconium compound to serve as an anode solution, then an electrolyte solution with the same volume as the zirconium compound is prepared to serve as a cathode solution, and the zirconium-containing reaction liquid is injected into an anode chamber of an electrolytic cell; injecting the electrolyte solution into a cathode chamber of the electrolytic cell; the electrolytic cell is heated, so that the temperature of the solution in the electrolytic cell is increased to a preset temperature; under the condition of keeping the preset temperature, inserting an electrode plate into the electrolytic bath and electrifying; and after the reaction is finished, an electrolysis product in the cathode chamber is calcined.

To provide a better cBN-based composite that has improved properties for cutting or machining difficult-to-cut materials.SOLUTION: A cubic boron nitride (cBN)-based composite includes about 30-65 vol.% of cBN, about 3-30 vol.% of zirconium (Zr)-containing compounds, about 0-10 vol.% cobalt-tungsten-boride (CoxWyBz), about 2-30 vol.% of aluminum oxide (Al2O3), about 0.5-10 vol.% of tungsten boride, and less than or equal to about 5 vol.% of aluminum nitride (AlN).SELECTED DRAWING: None

To develop a niobate sol with varied index of refraction, and to develop a novel niobate sol applicable to battery materials.SOLUTION: It is a dispersed sol containing dispersed particles that include core particles and modifiers that modify the surface of the core particles, where the core particles contain niobic acid, the modifiers contain zirconium components, and a molar ratio of ZrO2 / Nb2O5 is in the range of 0.01 to 0.15, known as zirconium-modified niobic acid sol. The zirconium-modified niobate sol can be produced through a process consisting of (1) a first step of mixing a niobate sol with a pH of 7 or higher and a zirconium compound, and (2) a second step of heating.SELECTED DRAWING: None

The application discloses a preparation method of DL-tartaric acid, which uses maleic anhydride as raw material, uses WO3-SiO2-ZrO2 solid acid as a catalyst, and is prepared through catalytic oxidation reaction under the condition of an oxidant. The catalyst is prepared through the following steps: mixing and dissolving a tungsten-containing compound and a zirconium-containing compound; adding silica sol, a surfactant and a precipitant to form a gel, and then performing filtration, washing and calcination to obtain the catalyst. Since the active species and the carrier in the catalyst have strong interaction, the recycling rate of the catalyst is high, so that the residual amount of heavy metal tungsten in the prepared tartaric acid crystal is effectively reduced, the DL-tartaric acid yield is still high during recycling, the production cost of the tartaric acid is reduced, and the catalyst is suitable for large-scale production.

The invention provides a method for preparing a high-compaction high-performance sodium vanadium phosphate positive electrode material by mixing and sintering two sodium vanadium phosphate materials with different particle sizes and morphologies in proportion. An organic complexing agent and ethylene glycol are added in the preparation process of the first sodium vanadium phosphate material, and a stable complex is formed between the organic complexing agent and metal ions through the strong ionization complexing effect of the organic complexing agent, so that particles are agglomerated. Sintering at high temperature to obtain a first vanadium sodium phosphate material which is large in particle, irregular in morphology, loose and porous; a zirconium-containing compound is added during preparation of the second sodium vanadium phosphate material, the zirconium-containing compound is uniformly fused in material particles of the slurry through grinding, and sintering inhibits growth of the particles and enables the particles to be densely gathered, so that the compaction density of the material is improved, and the second sodium vanadium phosphate material which is coated with metal zirconium ions and has small and dense particles is obtained; two sodium vanadium phosphate materials are mixed and are mutually filled and permeated in secondary sintering, so that the compaction density and the overall performance of the materials are improved.

A method of forming a solid-state electrolyte powder includes the following steps. A zirconium compound layer is formed on an inner surface of a container. A precursor mixture is placed on the zirconium compound layer. The precursor mixture includes a first salt group and a second salt group. The first salt group includes zirconium source compound, lanthanum source compound, aluminum source compound, titanium source compound, tantalum source compound, or combinations thereof. The second salt group includes lithium source compound. An aerobic sintering process is performed to form the solid-state electrolyte powder.

The application belongs to the technical field of inorganic materials, and particularly relates to a preparation method of sodium zirconium cyclosilicate ZS-9 and application thereof. The preparation method comprises the following steps: reacting a silicon salt, an alkali and a zirconium-containing compound, adjusting pH, and filtering, so as to obtain the sodium zirconium cyclosilicate ZS-9, wherein the molar ratio of the silicon salt, the alkali and the zirconium-containing compound is 3.8-4.2:4-4.5:1. The preparation method of the sodium zirconium cyclosilicate ZS-9 is relatively mild in reaction condition, does not need special high-pressure reaction equipment, and is easy to realize industrialization. Compared with the prior art, the obtained sodium zirconium cyclosilicate ZS-9 has higher purity, yield and potassium ion exchange capacity.

The invention relates to a glaze material with stable color after coloring and sintering for the surface of sanitary ceramics, and belongs to the technical field of ceramics, the glaze material comprises a zirconium compound, vanadium zirconium blue, a metal oxide, wollastonite, carboxymethyl cellulose, sodium tripolyphosphate and deionized water; the zirconium compound comprises neodymium zirconate, zirconium phosphate and zirconium silicate; the metal oxide comprises zinc oxide. Neodymium zirconate selected in the invention can absorb light with a specific wavelength, is adjustable in color and is not easy to decompose at a high temperature; the vanadium zirconium blue is excellent in high-temperature stability and good in compatibility with zirconium silicate; zirconium phosphate can chelate transition metal ions, namely vanadium ions, in vanadium zirconium blue, and charge transfer and color generation are stabilized. Zirconium silicate can wrap coloring ions in a system and reduce migration of the coloring ions in the glaze; therefore, the four components are combined, so that the glaze has color stability effectively. In addition, zirconium silicate, zinc oxide and wollastonite can synergistically improve the smoothness of the glaze from different aspects, and the appearance attractiveness of sanitary ceramics using the glaze is improved.

The invention discloses a preparation method of a high-optical-purity (S)-indoxacarb intermediate, which comprises the following steps: reacting a compound # imgabs0 # as shown in the specification with a zirconium-containing compound in a solvent at a certain temperature by taking a structure shown in L1 as a chiral ligand to generate a chiral Zr-Salan complex solution system; and then adding 5-chloro-1-indanone-2-methyl formate (2) and an oxidizing agent into the solution, and carrying out an asymmetric hydroxylation reaction, so as to obtain the (S)-5-chloro-2, 3-dihydro-2-hydroxy-1-oxo-1H-indene-2-carboxylic acid methyl ester (1). According to the method, the chiral Zr-Salan complex is used as the catalyst, and non-polar solvents such as petroleum ether are selected, so that a product with high photochemical purity can be efficiently generated in the reaction at room temperature without an anhydrous condition, the product can be purified only by filtration, and the catalytic system can be recycled for more than three times.

The application belongs to the field of silver catalysts, and relates to a composite alpha-alumina carrier for a silver catalyst for ethylene oxidation to produce ethylene oxide, a preparation method of the composite alpha-alumina carrier, the silver catalyst and application. The composite alpha-alumina carrier comprises an alpha-alumina carrier and a porous alumina film containing zirconium coated outside the alpha-alumina carrier. The preparation method of the composite alpha-alumina carrier comprises the following steps: (1) dissolving an aluminum-containing compound, a pore-forming agent and a zirconium-containing compound in water, and preparing a solution after stirring; the pore-forming agent is urea, hexanediamine, sucrose or starch; (2) immersing the alpha-Al2O3 carrier in the solution obtained in step (1), and performing drying and calcination after leaching, to obtain the composite alpha-alumina carrier coated with a porous alumina film containing zirconium on the outer surface. The silver catalyst prepared from the alpha-alumina carrier of the application shows good reactivity and selectivity in the process of ethylene oxidation to produce ethylene oxide.

A method for manufacturing an oxide-base solid electrolyte of a lithium battery includes the steps of: placing a zirconium-contained compound and a lanthanum-contained compound into a first ball mill for grinding and then performing an oil bath assisted vacuum concentration and a first stage sintering operation to obtain a zirconium lanthanum compound; placing the zirconium lanthanum compound, a lithium-contained compound, a gallium-contained compound, an aluminum-contained compound and a further lanthanum-contained compound into a second ball mill for grinding and then performing another oil bath assisted vacuum concentration and a second stage sintering operation to obtain a plurality of modified LLZO agglomerates; and placing the modified LLZO agglomerates into a jet mill and a wet grinding mill for grinding and then performing a water bath assisted vacuum concentration to obtain a plurality of modified LLZO powders.

Provided is a metal surface treatment agent which can be sintered at high temperatures and is capable of imparting high corrosion resistance to a metal substrate. A metal surface treatment agent which contains (A) a silicic acid compound, (B) an alkali metal salt other than a silicic acid compound, a vanadium compound and a zirconium compound, (C) a vanadium compound, (D) a zirconium compound and water, and wherein the content of silicon element is 10 mass% or more relative to the total solid content of the metal surface treatment agent. The silicic acid compound (A) is preferably a silicate of an alkali metal.

The invention provides a surface-modified single-crystal ternary positive electrode material and a preparation method and application thereof, the preparation method comprises the following steps: (1) mixing a ternary positive electrode precursor with an acidic chelating etching solution, and carrying out chelating etching treatment to obtain a modified precursor; and (2) mixing the modified precursor with a lithium source, and carrying out sintering treatment to obtain the surface-modified single-crystal ternary positive electrode material, wherein a solute of the acidic chelating etching solution comprises a zirconium-containing chelate and an etching agent. Through a surface zirconium citrate chelating etching process, a zirconium-doped and zirconium compound-coated three-dimensional structure is formed on the surface of the positive electrode material after sintering, and through the chelating dispersion effect of zirconium citrate, a gradient doping mechanism and in-situ interface reconstruction, the problems of residual alkali control, lattice distortion and interface failure of the ultrahigh nickel single crystal material are solved.

A process for producing an oxide-based solid electrolyte for a lithium battery, comprising the following steps: introducing a zirconium-containing compound and a lanthanum-containing compound into a first ball mill for grinding, followed by oil bath-assisted vacuum concentration and a first sintering process to obtain a zirconium-lanthanum compound; introducing the zirconium-lanthanum compound, a lithium-containing compound, a gallium-containing compound, an aluminum-containing compound, and another lanthanum-containing compound into a second ball mill for grinding, followed by further oil bath-assisted vacuum concentration and a second stage of a sintering process to obtain a variety of modified LLZO agglomerates;and the introduction of the modified LLZO agglomerates into a jet mill and a wet mill for grinding and subsequent water bath-assisted vacuum concentration to obtain a variety of modified LLZO powders.

Filter unit (1, 1'), in particular for the fine filtration of fluids and gases, comprising at least one inlet side (2), at least one outlet side (5) and an adsorption body (4) in the form of a shaped body which consists of an adsorption agent (4.1), in particular of grains of activated carbon, a binder (4.2) and a zirconium compound (4.3), wherein the adsorption agent (4.1) is coated with the binder (4.2) and further binds the zirconium compound (4.3) in the shaped body.

The application discloses a synthesis method of high softening point silicon oxide, and belongs to the technical field of silica preparation process. The method adds a small amount of titanium compound and / or zirconium compound in the process of synthesizing quartz sand, and the density and softening point of the synthesized quartz sand are significantly improved. In particular, the quartz sand with the titanium compound and the zirconium compound added simultaneously has more excellent softening point and density.

A hydrosilylation curable textile coating composition comprises: (a) a linear organopolysiloxane polymer having at least two alkenyl and / or alkynyl groups per molecule; (b) a reinforcing filler comprising at least one of fumed silica, precipitated silica, or calcium carbonate; (c) a linear trimethyl terminated polydimethyl methylhydrogen siloxane containing at least two silicon-bonded hydrogen groups per molecule; (d) a hydrosilylation cure catalyst; (e) an organosilicon resin; and (f) an adhesion promoter comprising a mixture and / or reaction product of: (i) one or more alkoxysilanes having an epoxy group in the molecule; (ii) a linear organopolysiloxane oligomer containing at least one alkenyl group and at least one hydroxy or alkoxy group per molecule; and (iii) an organometallic condensation reaction catalyst comprising organoaluminum or organozirconium compounds. Air bags and air bag fabrics can be coated with the hydrosilylation curable textile coating composition, and the resulting air bags and fabrics generally have enhanced scrub resistance.

A method for preventing or reducing knock in a hydrogen fueled combustion engine is described. The method involves lubricating the crankcase of the engine with a lubricating oil composition that includes about 50 to about 3000 ppm of zirconium from one or more zirconium compound, based on total weight of the lubricating oil composition.