883 results about "Zirconium oxychloride" patented technology

A method of making sodium zirconium carbonate is described which involves forming a mixture of zirconium oxychloride with soda ash and then heating at a sufficient temperature and for a sufficient time to form the sodium zirconium carbonate. Subsequent washing and filtration steps can further form parts of this process. A novel sodium zirconium carbonate is further described which contains from about 2 wt % to about 5 wt % Na<+>; from about 44 wt % to about 50 wt % ZrO2; from about 12 wt % to about 18 wt % CO3<2->; and from about 32 wt % to about 35 wt % H2O.

Zirconium phosphate particles are synthesized by providing a solution of zirconium oxychloride in an aqueous solvent, adding at least one low molecular weight, oxygen containing, monofunctional, organic additive to the solution, and combining this solution with heated phosphoric acid or a phosphoric acid salt to obtain zirconium phosphate particles by sol gel precipitation.

Zirconium phosphate particles are synthesized by providing a solution of zirconium oxychloride in an aqueous solvent, adding at least one oxygen-containing additive to the solution, the oxygen-containing additive being selected to form a complex with zirconium ions in the solution of zirconium oxychloride and thereby reduce hydration of the zirconium ions, and combining this solution with phosphoric acid or a phosphoric acid salt to obtain zirconium phosphate particles by sol gel precipitation.

A process for preparing high-performance continuous fibre of zirconium oxide includes such steps as synthesizing acetylacetone-zirconium polymer as precursor from acetylacetone and zirconium oxychloride as main materials, dissolving in methanol to obtain the spinning solution, drying spinning to obtain continuous fibre of precursor, heat treating in a multifunctional sintering furnace by special atmosphere and high-temp. airflow spraying for stretching. Its advantages are high tensile strength (over 2.6 GPa) and long length up to several kilometers.

The invention relates to crosslinked acid sand fracturing acid liquor, comprising the following components in percentage by weight: 0.7% of thickening agent, 1.5% of cross-linking agent, 1.5% of corrosion inhibitor, 0.5% of surfactant, 0.15% of stabilizing agent, 20% of hydrochloric acid and 75.65% of water, wherein the thickening agent consists of the following components by weight percent: 6.61% of methacrylamidoethyltrimethylamine hydrochloride, 3.22% of acrylamide, 1.25% of acrylic acid, 9.52% of 2-acrylamide-2-methylpropanesulfonic acid, 6.15% of sodium hydroxide and 73.25% of deionized water; and the cross-linking agent consists of the following components in percentage by weight: 1% of zirconium oxychloride, 80% of formaldehyde and 19% of glyoxal. The crosslinked acid sand fracturing acid liquor can be cross-linked in 20% hydrochloric acid, the temperature resistance reaches 100 DEG C, the constant of reaction rate of acid-rock is 1.3744*10-6 (mol/cm<3>)(1-m)*(cm/s), and the viscosity of the gel-breaking liquid is less than 10 mPa.s.

A process to produce stabilized zirconia from a solution of zirconium salt and a stabilizing agent. The zirconium salt may include zirconium oxysulfate, zirconium oxychloride, zirconium oxynitrate, zirconium nitrate, and other water-soluble zirconium salts. The stabilizing agent may include calcium, magnesium, yttrium salts of oxides and rare earth oxides. The process is conducted by evaporation of the solution above the boiling point of the solution but below the temperature where there is significant crystal growth. The evaporation step is followed by calcination to produce the desired nano-sized structure. Further processing by sintering may be applied to produce solid structures or by milling and classification to produce material for thermal spray coating.

The invention discloses a preparation method of a nanoscale zirconium phosphate silver-carrying composite inorganic antimicrobial agent. The preparation method comprises the following steps of 1, a nanoscale zirconium phosphate carrier preparation step specifically comprising that enough sodium dihydrogen phosphate aqueous solution is added into zirconium oxychloride aqueous solution to undergo areaction to produce nanoscale zirconium phosphate carriers, 2, an ultrafiltration step specifically comprising that the nanoscale zirconium phosphate carriers obtained from the step 1 are added into an ultrafilter membrane system for ultrafiltration and when a result of a detection adopting silver ions shows that there is not chloride ions in filtrate, the ultrafiltration is completed, 3, an antimicrobial metal ion adsorption and displacement step specifically comprising that nanoscale zirconium phosphate carrier sol precipitates are dissolved in pure water and then antimicrobial metal ion aqueous solution is added into the nanoscale zirconium phosphate carrier sol precipitate aqueous solution to undergo complete adsorption and displacement reactions, and 4, an inorganic antimicrobial powder preparation step specifically comprising that reaction products obtained from the step 3 are filtered by a pump and washed to form filter cakes and the filter cakes is dried by an oven, crushed slightly and calcined to form finished products. The preparation method removes an inorganic salt by-product from a zirconium phosphate synthesis process through adopting an ultrafilter membrane thus enables zirconium phosphate carriers to be utilized directly for adsorption and displacement of metal ions without high-temperature calcination.

The present invention provides a method for preparing a zirconium oxide refractory fiber. The method adopts zirconium oxychloride, aqueous hydrogen peroxide solution, yttrium chloride or yttrium nitrate as raw material, the inorganic zirconium spinnable glue solution is made by reaction and compression, the gelatinous fiber can be obtained by centrifugal fiber forming, and after heat treating sintering the zirconium oxide refractory fiber which has the following advantages can be obtained: crystal phase composition with square phase and/or cubic phase zirconium oxide, purity up to 99.5% above, diameter around 5 mu m, length approximate continuous, soft and flexible property and without slag including sphere. The using temperature of the fiber is above 1600 DEG C, the material can be used as extreme temperature refractory, heat insulation material, protecting material, ablative material, satellite battery separator material and the like, used for the fields of aerospace, war industry and national defense, atomic energy and the like; the fiber can also be used as the flame-proof heat-insulating material of the extraordinary high-temperature electric furnace with temperature 1600 DEG C to 2200 DEG C, the oil or gas burning furnace and other extraordinary high-temperature heating mechanism, and is used for the fields of ceramic sintering, crystal growth, metal smelting, petroleum cracking, scientific researching and the like. The invention totally adopts the inorganic raw material, has the advantages of low cost, no pollution, simple technique and excellent effect.

The invention relates to a method of preparing full-stable and cubic-phase zirconia crystal fibers, which mainly comprises the following steps: using zirconium oxychloride, acetylacetone and triethylamine as main raw material and using ethanol as diluent solvent to directly react at a temperature of 0 DEG C to 50 DEG C under a stirring condition so as to generate an organic polymer solution comprising zirconium; evaporating the ethanol and using acetone as solvent to dissolve soluble substances and filter and remove an undissolved substance of triethylamine hydrochloride; recycling the acetone, dissolving the obtained products and yttrium salt to the ethanol to prepare a spinning solution which is centrifugally flung at a high speed to obtain organic polymer fibers comprising zirconium; and carrying out heat treatment in a special atmosphere and ultra-high temperature treatment of the organic polymer fibers comprising zirconium. The invention has simple preparation technology and can recycle the solvent, and the prepared crystal fibers have single ingredients, high purity and stable high-temperature performance and can be used in a range from 1700 DEG C to 2150 DEG C for a long time.

The invention relates to an anti-carbon-deposition Ni-based catalyst for hydrogen production by methane steam reforming and a preparation method thereof. By taking lanthanum nitrate, praseodymium nitrate, samarium nitrate, yttrium nitrate, zirconium nitrate, zirconium carbonate, zirconium oxychloride, and the like as precursors and taking ammonia as a precipitant, a pyrochlore composite oxide is prepared through using a coprecipitation method; and then the pyrochlore composite oxide is mixed with alumina by using a mechanical mixing method so as to obtain a pyrochlore alumina composite carrier. Nickel nitrate, nickel chloride, nickel sulfate, nickel oxalate and the like serving as nickel sources are loaded on the pyrochlore alumina composite carrier through direct immersion. The loading capacity of nickel in the catalyst accounts for 5-30% of the weight of the catalyst, the pyrochlore content of the catalyst is 5-50%, and the alumina content of the catalyst is 20-90%. By taking the pyrochlore alumina composite oxide as a carrier, the reaction activity and anti-carbon-deposition performance of the catalyst can be greatly increased; the preparation method of the catalyst is simple; and the catalyst has excellent catalytic activity and stability to methane steam reforming in a stationary bed.

The invention provides a method for comprehensively recovering multiple elements from zirconium oxychloride liquid waste. The method comprises the following steps: (1) removing iron and uranium on zirconium oxychloride; (2) gathering scandium and thorium; (3) preparing a high-purity scandium oxide; and (4) gathering rare earth, zirconium and titanium. According to the method provided by the invention, through reasonable configuration of the recovering order of various elements from the zirconium oxychloride liquid waste, scandium enrichment capable of improving the purity by a subsequent purification method can be obtained just by virtue of a cheap extracting agent; and the adverse effects on purity improvement of the subsequently obtained scandium caused by irremovable zirconium and titanium, and radioactive elements thorium and uranium are avoided.

The invention discloses application of zirconium-porphyrin metal-organic frameworks (MOFs) as fluorescent probes to the detection of hydrogen phosphate ions. The zirconium-porphyrin MOFs are made by making 5,10,15,20-tetra(4-carboxylphenyl)porphyrin, benzoic acid and zirconium oxychloride react through a solvothermal method. In comparison with the prior art, according to the application, the zirconium-porphyrin MOFs are used as the fluorescent probes to detect phosphates; not only does the application have the advantages of being simple in method, being quick and being convenient to operate, but also Zr-O nodes in the zirconium-porphyrin MOFs have quite strong affinity interactions with the hydrogen phosphate ions; moreover, the zirconium-porphyrin MOFs have favorable dispersity in an aqueous solution and are easily recovered; thus, the detection on the hydrogen phosphate ions in the aqueous solution is realized.

The present invention relates to a high-purity ultrafine zirconium diboride powder material and its preparation method. It is characterized by that the described powder material contains zirconium oxychloride, boron carbide powder and active carbon powder, their mole ratio is ZrOcl2:B4C:C=1:0.4-0.8:1.4-1.8. Its preparation method includes the following steps: firstly, mixing boron carbide powder, active carbon powder and water according to mixing ratio, regulating pH value to obtain mixed suspension; dissolving zirconium oxychloride in deionized water to obtain the zirconium oxychloride solution; mixing the above-mentioned suspension and zirconium oxychloride solution, adding ammonia water, making the zirconium oxychloride be fully hydrolyzed and precipitated; making suspension undergo the processes of solid-liquor separation, waster-washing, removing NH4+ and Cl-, drying and sieving; then placing the powder material into a vacuum furnace to make reaction synthesis, its synthesis temperature is 1500-1600 deg.C, heat-insulating for 0.5-4 h; grinding powder and sieving so as to obtain the invented powder material.

The present invention discloses a method for preparing zirconium oxide sol. Said method includes the following steps: using zirconium oxychloride as precursor body, using hydrogen peroxide as hydrolysis accelerating agent, utilizing strong oxidative property of hydrogen peroxide to make chlorine ions be reduced into chlorine gas and make said chlorine gas be overflowed so as to obtain the colloid whose particle size distribution is narrow. Said invention makes the zirconium oxychloride be dissolved in a proper quantity of mixed solution formed from alcohol, water and surfactant, uniformly mixes and stirs them, and selects proper surfactant, and utilizes a simple technological process to prepare high-purity and stable zirconium oxide sole whose particle size can be controlled and particle size distribution is narrow.

The invention discloses a method for preparing a ZrO2-CeO2/CNTs composite nanotube by a hydrothermal method, which is a method for preparing a composite carbon nano tube based on nanoscale cerium oxide, nanoscale zirconia and a carbon nano tube. The preparation method comprises the steps of: sequentially adding the carbon nano tube, a surface active agent, zirconium oxychloride, cerous nitrate and deionized water which serve as raw materials according to stoichiometric ratio; performing ultrasonic dispersion to uniformly mix the raw materials; dripping ammonia water into the mixed raw materials until the pH value is 9.5; and performing hydro-thermal treatment to prepare a product, wherein the tube diameter of the prepared ZrO2-CeO2/CNTs composite nanotube is between 50 and 80 nanometers, and a specific surface area reaches 70-150 m<2>/g; and the ZrO2-CeO2/CNTs composite nanotube exists in the form of complete solid solution of a square/cubic system, the crystallinity reaches over 75 percent, and the ZrO2-CeO2/CNTs composite nanotube is uniform in loading and has no agglomeration phenomenon. The method has the advantages of simple process, no need of high-temperature calcination, low energy consumption and the like.

The invention discloses a preparation method of nanometer yttrium stabilized zirconia powder. The preparation method comprises mixing zirconium oxychloride, yttrium oxide and deionized water accordingto a mass ratio of (50-60): (0.8-1): (10-12), heating the mixture to 90-110 DEG C, carrying out heat preservation for 1-3h, adding plant gum into the mixture, then adding at least one of ethylenediaminetetraacetic acid or citric acid into the mixture, carrying out stirring for 3-5h to obtain a colloidal solution, adding an ammonia solution into the colloidal solution along with stirring for 8-10huntil pH of 10.0-11.0 so that white precipitates are produced, standing the white precipitates for aging for 24-48h, washing and filtering the precipitates, carrying out spray drying and fluid energymilling to obtain precursor powder, and calcining the precursor powder at 450-600 DEG C for 5-7h to obtain the nanometer yttrium stabilized zirconia powder. The zirconia powder has a high sintering shrinkage rate, high sintering density, good strength, good performances, small particle size and narrow distribution.

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 relates to an yttrium zirconium composite nano-ceramic powder in the field of ultrafine ceramic and preparation method thereof. The components and molar percentage contents of the composite nano-ceramic powder are as follows: 5% to 8% of yttrium oxide and 92% to 95% of zirconium oxide; the preparation method includes the following steps: zirconium oxychloride is dissolved in ethanol, and then yttrium oxide is added at the temperature of 60 DEG C to 80 DEG C; cooling, sodium bicarbonate or potassium bicarbonate solution is added, acrylic ester is then added, ultrasonic washing is carried out for 20 to 30 minutes, and reaction is carried out after putting in a high pressure reaction pot; the power is taken out after the reaction is finished, and then washed, so that the yttrium zirconium composite nano-ceramic powder is obtained. The invention has simple preparation method and low cost, and industrialization production is easily realized; the yttrium zirconium composite nano-ceramic powder in the invention has the characteristics of good toughness and easy sintering; and the yttrium zirconium composite nano-ceramic powder in the invention rarely has crystal imperfection.

The invention discloses a preparation method of marble composite polishing powder and application of the preparation method in a polishing process of marble production and refurbishment. The method comprises dissolving 5%-18% of zirconium oxychloride in water, adding 50%-65% of aluminum oxide, adding 10%-22% of stannic oxide, adding 2%-8% of silicon dioxide, stirring to be slurry, adding 10%-25% of urea, conducting heating reaction, solid-liquid separation, drying and roasting, mixing with lead powder according to the proportion of 10-25:1, and then obtaining the marble composite polishing powder. The preparation process is simple, preparation methods are easy to control, production cost is low, and industrial production is easy to achieve. The preparation method is used for a marble polishing procedure, the marble composite polishing powder has good polishing effects, glossiness can achieve more than 98 degrees, scratches are fewer, evenness is high, and using amount of the powder is less.

The invention relates to a resin-based composite adsorbent for synchronously and deeply remove phosphorus and fluorine in water and a preparation method thereof. The preparation method includes: weighing resin, adding the resin into a prepared titanium tetrachloride-hydrochloric acid-anhydrous alcohol solution, stirring in constant-temperature water bath, filtering, drying, adding a prepared NaCl+NaOH solution, stirring, filtering, cleaning, rinsing, and drying; weighing zirconium oxychloride, adding into a a hydrochloric acid-alcohol-water solution, adding the resin which is dried to constant weight, stirring in water bath, filtering, drying, adding into a NaOH solution, stirring, filtering out, washing with water to neutral, using a NaCl solution and alcohol for rinsing, filtering, and drying to constant weight to obtain the resin-based composite adsorbent. A carrier of the adsorbent is macroporous anion exchange resin with quaternary ammonium functional group, and nanoparticles of titanium oxide and zirconium oxide are distributed on the surface and in pores of the carrier; the composite adsorbent has the advantages of high adsorption capacity, high selectivity and capability of synchronously removing phosphorus and fluorine and can be applied in deep phosphorus and fluorine removing treatment of drinking water and industrial wastewater.

The invention relates to a method for preparing boron carbon zirconium materials by liquid phase method, which belongs to the field of structural ceramics. By using carbothermal reduction as the basic principle and adopting zirconium oxychloride, boric acid and phenolic resin as the main materials, the method comprises the steps as follows: the phenolic resin is mixed with zirconia sol which is formed by titration of ammonia; then gel is formed by the titration of the ammonia; finally ball milling is carried out; after drying, screening and heat treatment, the ultrafine boron carbon zirconium materials can be obtained. The boron carbon zirconium materials which are prepared by the invention, with product granularity smaller than 200nm and excellent molding and sintering performance, can be applied to fields such as electron materials and refractory materials.

The invention relates to a preparation method for a dental coloring zirconia blank. The method comprises the following steps of: preparing coloring zirconia powder by taking soluble rare-earth salt as a coloring agent, soluble yttrium salt as a stabilizing agent and zirconium oxychloride as a raw material; molding in the manner of dry pressing, direct isostatic pressing, and combined dry pressing and isostatic pressing; and placing a molded blank into a sintering furnace for pre-sintering, thereby obtaining the dental coloring zirconia blank. The coloring zirconia repairing material provided by the invention is high in strength and excellent in light-transmitting property; the introducing of the coloring agent has minimal influence on the performance of the zirconia; the preparation process is simple and is easily controlled; the cost is low; and the industrialization is easily realized.