137 results about "Zirconium oxychloride octahydrate" patented technology

A preparation method of an yttria-stabilized zirconia tetragonal nano powder with high specific surface area. The method is characterized by comprising the following steps: (1) respectively weighing zirconium oxychloride octahydrate?and an yttrium raw material according to a stoichiometric ratio of zirconium and yttrium in (Y2O3)x(ZrO2) 1-2x (0.005<=x<=0.150), according to the amount of a target product, converting the yttrium raw material into an yttrium nitrate solution by dissolving, and then completely dissolving the zirconium oxychloride octahydrate; (2) respectively adding a soluble salt and organic fuel to the solution obtained in the step (1), heating for dissolving, continuing heating and concentrating to a sticky state, igniting in a heating furnace chamber at 400-1000 DEG C, and taking out the powder after complete combustion; and (3) washing, filtering and drying the powder obtained in the step (2). The invention effectively solves the problems of serious particle sintering agglomeration and small specific area in the process of solution combustion for synthesis of zirconium oxide; the powder has specific surface area as high as 378 m<2> / g and particle size about 2.8 nm; and the materials are more accessible and cheaper, so as to facilitate industrialized preparation.

The invention discloses a preparation method of a graphene/zirconium oxide nano-grade composite lubricating material. The method comprises the following steps: a graphite oxide solution is subjected to ultrasonic treatment for 1-2h, such that a uniformly dispersed graphene oxide suspension liquid with thickness of 1-2 layers is obtained; the suspension liquid is diluted with ultrapure water; zirconium oxychloride octahydrate is dissolved in ultrapure water, such that a zirconium oxychloride solution is prepared; the diluted graphene oxide suspension liquid is mixed with the zirconium oxychloride solution, and the mixture is uniformly mixed by stirring; the mixture is subjected to ultrasonic treatment for 10-30min; hydrazine hydrate is added into the mixed liquid, and a reaction is carried out under a hydrothermal condition, wherein a reaction temperature is 150-220 DEG C and a reaction time is 18-24h; a black solid product obtained after the reaction is repeatedly washed with ultrapure water, and is subjected to freeze drying for 6-12h, such that the graphene/zirconium oxide nano-grade composite lubricating material with zirconium oxide nano-particles uniformly distributed on graphene surface is obtained. The preparation method provided by the invention has the advantages of simple process, easy operation, low cost, high product purity, and the like.

The invention provides a preparation method of a graphene modified temperature-indicating thermal barrier coating. The preparation method comprises steps as follows: S1, zirconium oxychloride octahydrate is dissolved in deionized water; S2, solid powder of yttrium oxide, europium oxide and neodymium oxide is dissolved in diluted hydrochloric acid; S3, graphene oxide is dispersed in absolute ethanol; S4, the two solutions obtained in S2 and S3 are mixed; S5, the mixed solution in S1 and the solution obtained in S4 are stirred and mixed with a polyethylene glycol dispersant; S6, an ammonium hydroxide reaction base solution with PH being 10 is prepared and heated, and yttria-stabilized zirconia precursor sol is obtained; S7, graphene modified Nd<3+>/Eu<3+> yttria-stabilized zirconia sol containing no Cl- is obtained; S8, the graphene modified temperature-indicating thermal barrier coating is obtained through liquid-phase plasma spraying. The problems of burning loss, blowing loss and agglomeration of nano-scale graphene in preparation of a coating with the hot spraying technique are avoided.

The invention discloses an application of zirconium dioxide microspheres prepared by using a microchannel injection auxiliary method to adsorptive enrichment of organophosphorus pesticide. According to the application, the zirconium dioxide microspheres are obtained by forming a support substance by taking a chitosan material as an intermediate product, taking zirconium oxychloride octahydrate, acetic acid and sodium hydroxide as raw materials and adopting a microchannel auxiliary method under the room temperature. Each zirconium dioxide microsphere is of a mesoporous structure and can be used for carrying out adsorptive enrichment on the organophosphorus pesticide within a shorter time and is free of secondary pollution; and the zirconium dioxide microspheres subjected to adsorption are easy to be successfully separated from a solution so as to carry out effective desorption on the pesticide, so that detection of pesticide residues in vegetables, such as brassicae chinensis and cucumbers are successfully achieved. The application disclosed by the invention has the advantages of capability of obtaining raw materials easily, simple process, environmental friendliness and low cost; and the zirconium dioxide microspheres are large in adsorbing capacity to multiple organophosphorus pesticides and good in separating effect and the like, not only can be used for environment detection of a trace amount of residues of organophosphorus pesticides of agricultural produces, but also can be used for adsorptive treatment to waste liquor of organophosphorus pesticides and accords with the demands of practical production.

The invention discloses a Sn-Zr/SBA-15 mesoporous molecular sieve catalyst, and a preparation method and application thereof. The Sn-Zr/SBA-15 mesoporous molecular sieve catalyst is prepared from a polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, stannic chloride pentahydrate, zirconium oxychloride octahydrate and ethyl orthosilicate through hydrothermal crystallization consisting of successive step-by-step hydrolysis and mixing under a weakly acidic condition. The prepared Sn-Zr/SBA-15 mesoporous molecular sieve catalyst is used for catalyzing alkylation of phenol and formaldehyde for synthesis of bisphenol F and has high catalytic activity. Sn is effectively doped into SBA-15 without destroying the mesoporous structure of the SBA-15; SnO2 aggregate is prevented from formation and blocking of the channels of the molecular sieve; a weakly acidic aqueous solution solvent is used for synthesis, so the method is green, environment-friendly and low in preparation cost; and the catalyst is easy to separate, recover and reuse.

The invention discloses a preparation method of a Zr/chitosan composite adsorbent for adsorbing Pb<2+> in a water body. The method comprises the following steps: (1) dissolving chitosan in an acetic acid solution, stirring, and carrying out ultrasonic treatment to obtain a chitosan colloid; (2) dissolving zirconium oxychloride octahydrate in deionized water to prepare a zirconium oxychloride solution; (3) mixing the chitosan colloid with the zirconium oxychloride solution, stirring, and carrying out ultrasonic treatment to obtain a uniformly dispersed mixed solution; and (4) finally, adding aldehydes into the mixed solution, stirring, drying and grinding to obtain the Zr/chitosan composite adsorbent. The preparation method disclosed by the invention has the advantages of wide raw material sources, low cost and simple preparation technique, and can be easily industrialized and popularized. The composite adsorbent has favorable adsorption effects on Pb<2+> in the water body.

The invention discloses a platinum-ruthenium bimetal loaded zirconia nanotube composite material and a preparation method thereof and application in a thermocatalytic treatment of toluene. A SBA-15-OHmolecular sieve is taken as a template, zirconium oxychloride octahydrate is taken as a metal precursor, and a zirconia nanotube material is prepared through aging, calcination and etching; a certainamount of zirconia is taken as a carrier, and a certain amount of metal precursors such as chloroplatinic acid and ruthenium trichloride are added, and through ultrasonic stirring, a solvent is stirred for thermal evaporation and hydrogen reduction calcination is carried out to obtain a certain proportion of the platinum-ruthenium bimetal loaded zirconia nanotube composite material. The platinum-ruthenium bimetal loaded zirconia nanotube composite material synthesized through a series of steps has a good thermal catalytic effect on toluene gas, complete catalysis of low-concentration tolueneat a lower temperature can be achieved, and great research significance and certain application prospects for solving the toluene pollution gas in the air environment are achieved

The invention relates to the technical field of zirconium phosphate and preparation thereof, particularly to micron-scale lamellar zirconium phosphate and a preparation method thereof, wherein the zirconium phosphate is alpha-Zr(HPO4)2.H2O, and the average particle size of the alpha-Zr(HPO4)2.H2O is 1.0-2.0 [mu]m. The preparation method comprises: adding zirconium oxychloride octahydrate to deionized water, stirring, adding a fluoride salt, stirring, adding phosphoric acid or/and phosphate, stirring, carrying out a reaction, carrying out thermal insulation standing, carrying out suction filtering, washing, and drying to obtain the micron-scale lamellar zirconium phosphate. According to the present invention, the disadvantages of use of a lot of concentrated phosphoric acid or strong corrosive hydrofluoric acid, high reaction temperature, long reaction time, harsh reaction conditions and the like of the zirconium phosphate preparation technology in the prior art are solved, and the method using the fluoride salt as the reaction catalyst is provided, and has advantages of low reaction temperature, short time, short cycle and wide application range.

The invention discloses a porous material adsorbent and a preparation method and application thereof. The preparation method comprises the steps of dissolving 1,3,5-benzenetricarboxylic acid and zirconium oxychloride octahydrate in a mixed solvent of formic acid and N,N-dimethylformamide (DMF), conducting heating to obtain white precipitate, and conducting washing to obtain a porous material; and dissolving the porous material into an ethylene diamine tetraacetic acid (EDTA) disodium solution, and conducting heating, filtering and washing to obtain the EDTA modified MOF-808 with the carboxyl functional group. The MOF-808-EDTA porous adsorbent disclosed by the invention can be used for efficiently removing perfluoroalkyl substances in water, wherein the perfluoroalkyl substances mainly comprise perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). Meanwhile, heavy metal ion pollutants, mainly heavy metal ions such as Hg<2+>, As<2+>, Cd<2+> and Pb<2+>, in water can be efficiently removed, so that the water quality of drinking water meets the set standard and requirement of domestic drinking water.

The invention discloses a high temperature resistant nanometer zirconium boron cross-linking agent and a preparation method thereof. The preparation method of the cross-linking agent is characterizedin that (1) a lauryl sodium sulfate solution and a zirconium oxychloride octahydrate solution are respectively prepared; (2) the zirconium oxychloride octahydrate solution is dropwise added into the lauryl sodium sulfate solution; then, cyclohexane is added; next, the mixed solution is put into a reaction kettle; a sodium hydroxide solution is added; reaction is performed for 24h to obtain a nanometer zirconium dioxide emulsion; (3) glycerol, borax, beta-diketone and triethanolamine are sequentially added into the nanometer zirconium dioxide emulsion; reaction is performed under the conditionthat the pH value is 10, so that the nanometer zirconium boron cross-linking agent is prepared. The nanometer zirconium boron cross-linking agent prepared by the method has excellent temperature resistant and shearing resistant performance; the cost is low; the gel breaking and flowback are easy.

The invention belongs to the technical field of preparation of light high-strength nano materials and relates to a preparation method of a bionic high-strength high-flexibility nano composite fiber. According to the method, with zirconium oxychloride octahydrate as a raw material, firstly, a nano sheet layer material is prepared, and then by using a wet-method spinning technology, the graphene oxide-zirconium oxide high-strength high-flexibility composite material of a shell-based imitation structure and in a nano scale rule array is prepared. The method comprises the specific steps that (1) astandard buffer solution is prepared at the room temperature; (2) a certain amount of graphene oxide and zirconium salt are added into the solution, the mixed solution is evenly stirred, heated and stirred for 3 hours, and an obtained precipitate is centrifuged and washed; (3) a solidification bath is prepared; (4) the obtained precipitate is prepared into a spinning solution with a certain concentration, the spinning solution is injected into the solidification bath, standing is conducted for 0.5-24 hours, and a gel fiber can be obtained; (5) the gel fiber is washed, dried and subjected to thermal treatment to obtain the bionic high-strength high-flexibility nano composite material.

The invention relates to and provides aluminum-zirconium modified zeolite, a preparation method and a method for controlling release of nitrogen and phosphorus in polluted bottom mud . According to the technical scheme, the aluminum-zirconium modified zeolite is characterized by being prepared by combining natural zeolite with anhydrous aluminum trichloride and zirconium oxychloride octahydrate. The aluminum-zirconium modified zeolite comprises the following components in parts by weight: 5 to 15 parts of natural zeolite; 1 to 5 parts of anhydrous aluminum trichloride; 0.4 to 1.6 parts of zirconium oxychloride octahydrate. The aluminum-zirconium modified zeolite perferably comprises the following components in parts by weight: 10 parts of natural zeolite; 3 parts of anhydrous aluminum trichloride; and 1 part of zirconium oxychloride octahydrate. The product is suitable for the field of water environment treatment.

The invention discloses a precursor-conversion-method preparation process of self-dispersion superfine ZrC-SiC ceramic composite powder. Zirconium oxychloride octahydrate and tetraethoxysilane are used as a zirconium source and a silicon source; glucose is adopted as a carbon source and a carbonization product dispersing agent in a pyrolysis process, hydrogen peroxide is adopted as a hydrolysis accelerant and absolute ethyl alcohol and deionized water are adopted as composite solvents, and the process comprises respectively preparing a zirconium precursor solution, a tetraethoxysilane solutionand a glucose solution and uniformly mixing the solutions to obtain a silicon-zirconium precursor solution; and drying the silicon-zirconium precursor solution, and carrying out heat treatment at 1450-1600 DEG C for 1-2 hours under argon atmosphere protection to obtain the ZrC-SiC ceramic powder with favorable dispersity, a narrow particle size distribution range and an average particle size of less than 100 nm. The raw materials are safe and non-toxic, the cost is low, the process is simple, the reaction process is easy to control, the synthesis temperature is low, and the prepared ceramic powder is fine and uniform in particle size, good in dispersity and suitable for large-scale production.

The invention belongs to the field of printing electronics, relates to the inkjet printing preparation process of an oxide film, and particularly relates to a method for improving ink deposition uniformity of inkjet printing. The method comprises the following steps: a printer substrate is kept at 50-60 DEG C, the ink droplet speed is 10m/s, the nozzles are not heated, the ink droplet spacing is 30-40 mum, multi-nozzle inkjet printing is performed on the substrate, and the number of the nozzles is 3-4; annealing is performed for 1h after printing; the ink solvent used in inkjet printing is ethylene glycol and ethylene glycol methyl ether mixed in the volume ratio of 1/2-2/1, and the ink contains polyvinylpyrrolidone equivalent to 3-5% by mass of the solvent and zirconium oxychloride octahydrate with the concentration of 0.1-1.0 M. Compared with the conventional gel template method, the problem of non-uniform deposition of the non-Newtonian fluid ink in the quick drying printing processcan be solved through simple improvement of the printer parameters.