32 results about "Zirconium disulfide" patented technology

The invention relates to a preparation method of zirconium dioxide powder, comprising the following steps: A. dissolving zirconium oxychloride into deionized water, and controlling mass ratio of the zirconium oxychloride and the deionized water to be 4:(21-35); B. dropwise adding ammonia water into mixed solution in the step A, and controlling mole ratio of the ammonia water and the zirconium oxychloride to be (1.8-3.7):1; C. carrying out washing, pressing and filtering or centrifugal separation on zirconium hydroxide hydrogel in the step B to obtain zirconium hydroxide gel; D. drying the zirconium hydroxide gel of the step C to obtain zirconium hydroxide, and calcining the zirconium hydroxide to obtain zirconium dioxide; E. mixing the zirconium dioxide in the step D with grinding medium and water and carrying out wet grinding on the mixture; and F. drying the zirconium dioxide slurry in the step E to prepare the zirconium dioxide powder. The zirconium dioxide powder product produced by the method has good particle monodispersity, complete particle form, concentrating distribution of particle size, high purity and controllable particle size and can realize low cost when in large-scale production of the zirconium dioxide.

The invention provides an iron disulfide/carbon nano tube composite material of a neural network structure and a preparation method thereof. The preparation method comprises the following steps of adding a carbon nano tube into mixed liquor of ethylene glycol and N,N'-dimethylformamide, and carrying out ultrasonic treatment to obtain carbon nano tube uniformly dispersed mixed liquor; adding ferrous sulfate, sublimed sulfur and urea into the mixed liquor, sufficiently agitating an obtained mixture, and then transferring the mixture into a hydrothermal reaction kettle to carry out a reaction; centrifugally separating a deposit, washing the deposit by using deionized water and alcohol, and then carrying out vacuum drying to obtain the iron disulfide/carbon nano tube composite material which is of the neural network structure. The iron disulfide/carbon nano tube composite material is of a three-dimensional neural network structure which is formed by mutually connecting neurons for which an iron disulfide particle is used as a neuron cell and the carbon nano tube is used as a prominence, wherein the diameter of the iron disulfide particle is not more than 200nm. The neural network structure can be used for improving the electric conductivity of a material; meanwhile, the volume expansion of iron disulfide in charging and discharging processes is buffered through the mechanical property of the carbon nano tube; besides, the wettability of an electrolyte on the material can be also improved through the three-dimensional structure of a neutral network and the nano size of the iron disulfide; the cyclical stability of an iron disulfide material as a sodium-ion negative electrode is greatly improved.

The invention belongs to the technical field of 3D (Three Dimensional) printing and in particular relates to ceramic slurry and a preparation method of zirconium dioxide-based composite ceramic. The ceramic slurry provided by the invention is prepared from the following components: 30 to 90 parts of zirconium oxide-based composite powder, 10 to 70 parts of light-cured resin and 0.1 to 5 parts of aphotoinitiator, wherein the zirconium oxide-based composite powder is prepared from the following raw materials: 3Y-TZP powder and rare earth oxide powder; rare earth oxide comprises one or more of Cr2O3, Er2O3, Co3O4, Fe2O3, Pr6O11 and MnO2. By controlling the types and adding amounts of the rare earth oxide in the zirconium oxide-based composite powder, obtained zirconium oxide-based compositeceramic has a uniform pink, red, blue, green or yellow color from a single zirconium white color and can be applied to preparation of zirconium dioxide ceramic with various colors, so that the increasing individualized requirements of people are met.

The invention discloses a glass inner container for the electric cooker which is made of silica dioxide, aluminum oxide, zirconium dioxide and boric oxide, wherein the silica dioxide is the basic raw material, the weight percentage of the raw material is that the silica dioxide is of 70-80%, the aluminum oxide is of 1-3%, the zirconium dioxide is of 3-8% and the boric oxide is of 10-20%. The producing method of the glass inner container for the electric cooker is that A: the raw material is prepared proportionally; B: the prepared raw material is mixed evenly by a mixing machine; C: the raw material which is mixed evenly is sent into the dissolution pool and is heated to the temperature of 1400-1600 DEG C, thus forming glass liquid; D: the glass liquid is sent into the working pool to carry out depositing and filtering disposal; E: the glass liquid is sent to the formed press mold and is produced into an end product. The glass inner container produced by the adopted art is thermostable, beautiful in appearance, convenient in cleaning, and the glass product meets the demand of the human and the current society for different aspect of the product such as health, environment protection and so on.

The invention relates to the technical field of material chemistry, in particular to a method for preparing a zirconium boride ceramic precursor. A preparation method of zirconium diboride ceramic precursor adopts the following steps: step 1: raw material; step 2: synthesis of zirconium-containing polymer PZS; step 3: preparation of ZrB2 ceramic precursor. In the present invention, zirconium oxychloride, acetylacetone and o-hydroxybenzyl alcohol undergo polycondensation reaction under alkaline conditions to generate a zirconium-containing polymer, and the polymer is blended with boric acid in a solution to obtain a ZrB2 ceramic precursor. The ceramic precursor prepared by this method can form a homogeneous impregnation solution, has a high ceramic conversion rate, meets the requirements of the PIP process, and has broad application prospects in the construction of ZrB2 ceramic modified C/C composites.

The invention belongs to the technical field of a catalyst, and discloses a dehydrogenation catalyst and a preparation method thereof. A composite oxide formed by zinc modified zirconium dioxide and active aluminum oxide is used as a carrier; Pt is used as a major active ingredient; ingredients selected from one or several elements from potassium, magnesium, tin, lanthanum, cerium, ferrum, cobaltand nickel are used as auxiliary active ingredients; Pt nano particle sol is used as steeping liquid for steeping the composite oxide carrier formed by zinc modified zirconium dioxide and active aluminum oxide; the steeped composite oxide carrier formed by zinc modified zirconium dioxide and active aluminum oxide is subjected to drying, baking and reduction to obtain the dehydrogenation catalyst;the aggregation of Pt at high temperature can be obviously reduced; Pt is uniformly distributed in the composite oxide carrier; the active ingredient Pt has large specific surface; the dehydrogenationcatalyst is applied to reaction of preparing propylene through propane dehydrogenation; high propylene selectivity is maintained; meanwhile, the propane conversion rate is obviously improved; the high-temperature stability of the catalyst is also obviously improved.

The invention discloses a large-area zirconium disulfide film and an atomic layer deposition preparation method thereof. A zirconium precursor and a sulfur precursor are alternatively introduced intoa reaction cavity, and self-limitation chemical reaction is generated on a substrate surface to grow the large-area zirconium disulfide film. The preparation process comprises 10-5000 growth cycles, and each growth cycle comprises four steps: 1) introducing the zirconium precursor into the reaction cavity of an atomic layer deposition system through pules, and adsorbing the zirconium precursor onto the substrate surface; 2) introducing high-purity nitrogen gas into the reaction cavity of the atomic layer deposition system through pulses to clean excessive zirconium precursor and reaction byproducts; 3) introducing the sulfur precursor into the reaction cavity of the atomic layer deposition system through pulses, and enabling the sulfur precursor and the zirconium precursor adsorbed to thesubstrate surface to generate self-limitation chemical reaction to generate a zirconium disulfide atomic layer; and 4) introducing high-purity nitrogen gas into the reaction cavity of the atomic layerdeposition system through pulses to clean excessive zirconium precursor and reaction byproducts. The large-area zirconium disulfide film has the advantages of being precisely controllable in atomic-level thickness, great in area, uniform, and the like.

The invention discloses a tubular titanium dioxide nano composite Sb adsorbent loaded with zirconium dioxide and ferroferric oxide and a preparation method and application thereof. the preparation method comprises the following steps of: (1) preparing a nano titanium dioxide pipe from TiO2 nano particles by using an alkaline hydrothermal method; (2) preparing zirconium chloride stock solution andstock solution containing ferric chloride and ferrous chloride respectively; (3) loading ZrO2 and Fe3O4 on the nano titanium dioxide tube to prepare the ZrO2 and Fe3O4 loaded tubular TiO2 nano composite Sb adsorbent, which is marked as ZrO2@Fe3O4@TiO2NTs. The adsorbent can adsorb Sb (III) and Sb (V) in a water body at the same time, the adsorbent with unit mass has high Sb adsorption efficiency, the separation of the adsorbent and the water body can be simply achieved under the action of a magnetic field, and the recovery efficiency of the adsorbent is high.

The invention provides a production process of ferrous disulfide, and belongs to chemurgy. The following raw materials including sodium disulfide, ammonium disulfide, potassium disulfide, ferrous sulfate, ferrous ammonium sulfate and ferrous chloride are required in a synthesis process. The sodium disulfide, the ammonium disulfide, the potassium disulfide, the ferrous sulfate, the ferrous ammonium sulfate and the ferrous chloride are respectively dissolved into water at the normal temperature of 25 DEG C to be made into a saturated solution; the sodium disulfide, the ammonium disulfide and the potassium disulfide can be sequentially matched with the ferrous sulfate, the ferrous ammonium sulfate and the ferrous chloride, and can also be respectively combined and matched to obtain a ferrous disulfide suspension solution. Vacuum suction filtration, drying and drying are performed, and then, crushing is performed to obtain ferrous disulfide powder. The synthesized ferrous disulfide suspension solution and the ferrous disulfide powder have wide purposes on agriculture; good market prospects are realized; a promotion effect is achieved on promoting the agriculture modernization construction in China; certain economic benefits and social benefits can be achieved on agricultural means of production enterprises and the society.

The invention discloses a preparation method for a ZrS2 two-dimensional semi-conducting material. The preparation method comprises the following steps: step a, obliquely placing two SiO2/Si substrates on a quartz boat A, then placing the quartz boat A and the SiO2/Si substrates into a high-temperature tubular furnace and putting the quartz boat A at the central position of a quartz tube of the high-temperature tubular furnace; step b, spreading zirconium chloride powder in a quartz boat B and putting the quartz boat B in the quartz tube of the high-temperature tubular furnace at a position 12 to 15 cm away from the quartz boat A; step c, putting sulfur boat at a position 12 to 15 cm away from the quartz boat A, wherein the sulfur boat and the quartz boat B are both located at one side of the quartz boat A; and step d, introducing inert gas into the quartz tube at normal temperature for 8 to 15 min to totally evacuate air in the quartz tube, then turning down the flow of the inert gas, heating the high-temperature tubular furnace to 770 to 880 DEG C and then carrying out natural cooling after complete reaction. Thus, the method provided by the invention can prepare the high-quality two-dimensional ZrS2 material by using a normal-pressure physical vapor deposition method.

The invention belongs to the technical field of zirconium carbide nanomaterials and particularly relates to a method of preparing a zirconium carbide nanomaterial with waste plastics. The method comprises the steps of (1) adding zirconium dioxide, waste plastics and metallic lithium into a reactor in a mass ratio of 1:(0.2-1):(2-10); (2) heating the reactor to allow chemical reaction to occur, andcooling after the reaction is over; (3) washing the product, and drying to obtain the zirconium carbide nanomaterial. The waste plastics are used as carbon sources herein; the material origin range is wide; the materials are low in price; conversion of the waste plastics to the zirconium carbide nanomaterial can be achieved herein through one-step chemical reaction; the environmental pollution problem due to waste plastics is solved.

The invention belongs to the technical field of chemical material preparation, and particularly relates to a method for preparing zirconium oxide powder by a hydrothermal method using solid waste zirconium as a raw material. The method comprises the steps that, the solid waste zirconium is alkalized through an alkalization reaction to obtain an alkalized material, the alkalized material is firstlytransformed, then reacted with sulfuric acid to obtain basic zirconium sulfate, and the basic zirconium sulfate is further reacted with sulfuric acid to obtain zirconium sulfate, a zirconium sulfatesolution is prepared from the zirconium sulfate, and zirconium oxide powder is obtained through a hydrothermal reaction. Through a two-step acidification reaction, purity of the zirconium sulfate is higher, the next hydrothermal reaction is benefited, and content of the zirconium oxide in the zirconium oxide powder is increased. According to the method for preparing the zirconium oxide powder by the hydrothermal method using the solid waste zirconium as the raw material, the zirconium oxide powder has small particle size, high purity, good dispersibility, high crystallinity, mild hydrothermalsynthesis conditions and simple process, a problem of disposal of the solid waste zirconium is avoided, and recycling use of the solid waste zirconium is realized.

The invention discloses a preparation method of nano-zirconium dioxide special for toughening ceramics, belonging to the technical field of inorganic chemical synthesis. The preparation method comprises the steps of firstly mixing polystyrene acrylic acid with dopamine in water under a nitrogen protection condition so as to form a uniform emulsion, complexing dopamine with metal ions in a zirconium oxychloride solution to slowly release the metal ions, introducing air into a flask while dropwise adding ammonia water to generate oxidative polymerization on dopamine under the action of dissolved oxygen in water so as to form a polydopamine network, enabling produced zirconium hydroxide precipitate to be adsorbed to the surface of a polystyrene acrylic acid template by virtue of the formed polydopamine network, carrying out washing to remove impurity ions, drying, and calcining to remove a polystyrene acrylic acid template core and a polydopamine network structure, so as to obtain nano-zirconium dioxide special for the toughening ceramics. The preparation method has the beneficial effects that a preparation process is simple, conditions are controllable, obtained nano-zirconium dioxide is of a uniform shape, and the particle size distribution of nano-zirconium dioxide is relatively narrow.

The invention provides Tm/Ho co-doped disulfide zirconium upconversion fluorescent powder, the chemical general formula of which is ZrS2: xTm<3+>, yHo<3+>, wherein ZrS2 is a substrate, Tm<3+> and Ho<3+> are doping ions, the value range of x is 0.002-0.06 and the value range of y is 0.002-0.04. The fluorescent powder can be excited by long-wave radiation from infrared rays to green light for blue-light short wave emission, so that the deficiencies of blue light materials in the existing luminescent materials can be overcome. The invention further provides a preparation method of the Tm/Ho co-doped disulfide zirconium upconversion fluorescent powder. The method can be used for preparing the Tm/Ho co-doped disulfide zirconium upconversion fluorescent powder which has the advantages of less surface defects, good degree of crystallinity and relatively intact crystal structure. In addition, the invention further provides an application of the Tm/Ho co-doped disulfide zirconium upconversion fluorescent powder in preparation of organic electroluminescence devices.

The invention discloses a gasoline hydrofining catalyst and a preparation method thereof, and the preparation method comprises the following steps: (1) taking pseudo-boehmite and sodium hydroxide, conducting stirring and mixing, and adding silica sol to prepare a carrier A; (2) adding sulfur into the carrier A and nano aluminum powder, and conducting roasting to obtain a carrier B; (3) dipping and roasting zirconium isopropoxide, and introducing carbon disulfide for reaction to prepare a carrier; (4) mixing cobalt nitrate, ammonium heptamolybdate and an auxiliary agent, and conducting dipping and roasting to prepare a catalyst C; and (5) conducting vulcanizing to obtain the catalyst. Pseudo-boehmite and silica sol are taken to prepare the carrier A, the carrier A reacts with sulfur and nano aluminum powder to form a carrier B, zirconium isopropoxide is used as a raw material to prepare zirconium oxide through roasting, then zirconium oxide reacts with carbon disulfide to prepare zirconium disulfide, and the zirconium disulfide is embedded with aluminum ions to prepare the carrier, so that the micropore specific surface area of the prepared carrier can be increased, the electrical property is good, electron transfer is promoted, the reaction activity is improved, and the hydrogenation performance of the prepared catalyst is improved.

The invention provides neodymium-ytterbium codoped zirconium sulfide up-conversion fluorescent powder, with the general chemical formula of Zr<1-x-y>S<2>:xYb<3+>, yNd<3+>, wherein ZrS2 is a matrix, Yb and Nb are doping elements, x ranges from 0.01 to 0.1, and y ranges from 0.004 to 0.06. The fluorescent powder is excited by infrared-green ray long-wave radiation to emit blue short-wave ray and can make up the deficiencies of the blue-ray material in the current luminescent material. The invention further provides a preparation method of the neodymium-ytterbium codoped zirconium sulfide up-conversion fluorescent powder. The preparation method is simple and low in production cost and can be popularized and applied. In addition, the invention further provides applications of the neodymium-ytterbium codoped zirconium sulfide up-conversion fluorescent powder in preparation of an organic electroluminescence device.

The invention provides a production process for producing zirconium sulfate tetrahydrate by using zirconium salts or alkali compounds and sulfuric acid as raw materials. Specifically, zirconium salts or alkali compounds are mixed with water and sulfuric acid in a certain proportion, and after full stirring and grinding, they are completely reacted to produce zirconium sulfate tetrahydrate. The above-mentioned process adopts the method of mixing and reacting zirconium salts or alkali compounds directly with sulfuric acid, which has the characteristics of simple equipment, short process flow, high yield, and no discharge of three wastes. It can be used to produce high-purity zirconium sulfate tetrahydrate and produce zirconium Treatment of zirconium compounds recovered from serial chemical production processes.