15 results about "Titanium ion" patented technology

This invention relates to the field of water pollution remediation technology, specifically providing an iron-titanium co-loaded resin material, its preparation method, and its application. The preparation method of the iron-titanium co-loaded resin material includes the following steps: preparing an Fe-loaded resin intermediate by shaking and soaking a sulfonic acid-based cation exchange resin with an iron ion solution; preparing an iron-titanium composite modified resin intermediate by shaking and soaking the Fe-loaded resin intermediate with a titanium ion solution; and stirring the iron-titanium composite modified resin intermediate with a mixed treatment solution containing sodium persulfate and sodium hydroxide, washing until neutral, and drying to obtain a composite resin material co-loaded with iron oxide and titanium oxide. This iron-titanium co-loaded resin material can significantly reduce manganese ion concentration when applied to groundwater purification and can be used in in-situ groundwater remediation projects.

The present application relates to the technical field of inorganic non-metallic refractory material preparation, in particular to a homogeneous sintering process of high-calcium and low-iron dolomite sand for refractory; comprising the steps of preparing anhydrous homogeneous modified sol, light-burning dolomite grafting treatment, pre-sintering activation and isostatic pressing forming homogeneous sintering; the technical principle is to use organic multi-tooth chelating groups to ensure homogeneous distribution of tetravalent zirconium ion / tetravalent titanium ion precursor, to generate high-melting-point continuous network phase to wrap calcium oxide at high temperature in situ, and to combine with rare earth ion solid solution to produce lattice defects to reduce sintering activation energy; the present application overcomes the defects of physical addition of burn-promoting agents to reduce high-temperature performance and easy loss of surface coating, uses in-situ wrapping of grain boundaries and defect burn-promoting mechanism to solve the problems of difficult densification and easy hydration of the material, realizes high densification, and effectively improves the anti-hydration, anti-thermal shock and anti-slag erosion capacity.

This invention belongs to the technical field of battery material analysis, and discloses a sample digestion method for determining the titanium content in carbon-coated lithium iron phosphate and a method for determining the titanium content therein. The sample digestion method provided by this invention uses concentrated sulfuric acid, perchloric acid, and ammonium sulfate as the first digestion reagents. The carbon-degradation-oxidation-decomposition of carbon-coated lithium iron phosphate is achieved at a high temperature of 200℃~350℃. Concentrated hydrochloric acid is used as the second digestion reagent to achieve complexation-stabilization of titanium ions, thereby achieving complete digestion of carbon-coated lithium iron phosphate. This yields a clear, transparent digestion solution with stable titanium ions, which can be directly used for quantitative analysis of titanium. This method has the advantages of simple operation, short processing time, and high processing efficiency, and has excellent application prospects for accurate and industrialized batch detection of titanium content in this complex matrix battery material, carbon-coated lithium iron phosphate.

This invention discloses a piezoelectric ceramic and its application. The piezoelectric ceramic uses barium titanate as a matrix and significantly improves piezoelectric performance and thermal stability by replacing some titanium ions with zirconium and tin ions. The piezoelectric ceramic adopts a lead-free formula, which is in line with the development trend of green and environmentally friendly products.

The present application relates to a kind of system and method for preparing low-valence titanium ion-rich molten salt for electrolytic refining titanium by microwave heating continuously, it relates to non-ferrous metallurgy and molten salt electrochemistry field.The system includes microwave heating gasification module, microwave multiphase reaction furnace and electrolytic refining module;Microwave heating gasification module includes multiphase reaction furnace body, titanium sponge reduction bed layer, NaCl-KCl molten salt, microwave energy system, bottom gas distributor and inclined overflow;Bottom gas distributor includes gas inlet plate, guide vane and micron porous medium layer.The system of the present application is used to solve the problems of high energy consumption and poor mass transfer, realize the efficient conversion of TiCl4 to low-valence titanium compound, and continuously output molten salt containing TiCl2 and TiCl3.

This invention provides a supercrystalline composite ion nitriding anti-corrosion metal pot, belonging to the technical field of metal pots. It includes a metal pot body and a handle connected to the pot body, with a detachable connection between them. The metal pot body includes a metal substrate layer. At least a portion of the outer and inner surfaces of the metal substrate layer are provided with a honeycomb structure layer obtained by plasma etching. A supercrystalline composite ion wear-resistant protective layer is provided on the honeycomb structure layer. This supercrystalline composite ion wear-resistant protective layer is formed by nitrogen atoms and titanium atoms penetrating into the pot surface and diffusing inwards. This invention reduces light cooking wear, extends the lifespan of the pot, and the integration of titanium ions into the crystal lattice optimizes the structure, enhances resistance to external forces, forms a corrosion-resistant barrier, resists water vapor, salt, and acid / alkali corrosion, ensures food safety and cooking stability, and significantly improves the performance of the pot, thus possessing certain practical value.

This application relates to the field of lithium-ion battery solid electrolyte material preparation technology, and particularly to a LATP solid electrolyte material with high stability to lithium metal anode and its preparation method. The material includes an LATP matrix; an organic coating layer covering the surface of the LATP matrix, wherein the organic coating layer is a bonding layer formed by grafting an organic coating layer with oxidizing functional groups onto a coupling agent, the thickness of which is 3-50 nm, accounting for 0.3%-5% of the total mass of the LATP solid electrolyte material. The organic compounds with oxidizing functional groups are selected from nitro compounds, nitroso compounds, or N-oxides. These functional groups inhibit the reduction of titanium ions in LATP through reversible redox reactions, significantly improving the interfacial stability between LATP and the lithium metal anode. The material preparation method of this application is simple, low-cost, and can effectively extend the cycle life of lithium metal batteries.

The application belongs to the field of nanometer functional material preparation, and particularly relates to a titanium vacancy titanium dioxide and a preparation method thereof. The titanium vacancy titanium dioxide comprises the following steps: 1) mixing a titanium source with deionized water to configure a titanium ion solution, and then mixing the titanium ion solution with a metal salt and urea to obtain a precursor solution; 2) adding the precursor solution obtained in step 1) into a reaction kettle to perform a hydrothermal reaction, so as to obtain a metal ion composite titanium dioxide; 3) mixing the metal ion composite titanium dioxide obtained in step 2) with an extractant and a solvent, adding into the solvent, and then putting into a reaction kettle to react, so as to obtain a titanium vacancy titanium dioxide / metal compound composite material; and 4) adding the titanium dioxide / metal sulfide composite material obtained in step 3) into a directional dissolution solution, and then performing a reaction to obtain the titanium vacancy titanium dioxide. By accurately controlling the molar ratio of the doped metal ion and the titanium ion in step 1), the content of the final titanium vacancy can be accurately controlled.

A lithium iron phosphate cathode material with titanium ion-induced heterogeneous construction of lithium iron-titanium lithium and its preparation method, which relates to lithium iron phosphate cathode materials and their preparation methods. It aims to solve the technical problem of low performance of existing modified lithium iron phosphate materials. The structural formula of the material in this invention is: LiFePO4 ·xLiTi2(PO4)3, where 0 < x < 0.011. The preparation method is as follows: First, prepare a lithium titanate precursor through steps such as a sintering aid lithium source, compaction, and presintering, which expands the formation window of lithium titanate and promotes the subsequent in-situ formation of heterogeneous lithium iron phosphate and lithium titanate, forming a well-structured, electrochemically active, and high-ion-conductivity lithium titanate heterogeneous phase. The discharge specific capacities of this material at 0.1C, 1C, and 10C reach 162 mAh / g, 149 mAh / g, and 110 mAh / g respectively, and the capacity retention rate reaches 98.3% after 1000 cycles at 1C. It can be used in the battery field.

The present invention provides a method for producing tissue that can gel a sol-like substrate (viscous mixed liquid) while maintaining its shape, and that can control the orientation of cells contained in the substrate. [Solution] The tissue manufacturing method comprises: step 1, discharging a viscous mixture containing animal cells, heparin, and collagen in a strip from a discharging device; step 2, incubating the viscous mixture discharged in step 1 with an aqueous solution containing metal ions at a concentration of 1.25 mM or higher; and step 3, after incubation, replacing the aqueous solution with a culture medium and culturing the animal cells. The metal ions are one or more metal ions selected from the group consisting of platinum ions, nickel ions, palladium ions, titanium ions, gold ions, copper ions, and zinc ions. The discharging device is equipped with a discharging port for discharging the viscous mixture, and in step 1, the viscous mixture is discharged from the discharging port while changing the horizontal position of the discharging port in a direction that orients the animal cells.

A high-hardness wear-resistant antifriction coating applied to high-speed cutting tools and a preparation method thereof is provided. The coating includes an AlTiMoN upper layer and a Ti interlayer, the specific preparation steps are as follows: selecting Ti target power supply, performing titanium ion cleaning, depositing Ti interlayer, and then selecting Al60Ti30Mo10 target, and depositing AlTiMoN layer. The prepared coating system has high hardness, good bonding force with the substrate, excellent wear-resistant and antifriction performance, and can effectively improve the cutting performance in the cutting process of the turning tools.

This invention relates to the field of materials determination technology, and discloses a method for detecting the titanium content in a titanium-containing reagent and a method for detecting the titanium content in a polyolefin catalyst. The method includes the following steps: (1) under an inert gas protective environment, the titanium-containing reagent is acid-hydrolyzed and reduced to obtain a trivalent titanium ion sample solution; (2) under an inert gas protective environment, ferric ammonium sulfate solution is added dropwise to the sample solution, and the potential is tested using a redox electrode during the addition process. The titration endpoint is determined based on the redox electrode potential threshold, and the titanium content is calculated based on the amount of ferric ammonium sulfate solution added at the titration endpoint. This detection method is green and environmentally friendly, and improves the accuracy of the detection results while reducing the detection cost.

This invention discloses a titanium-doped layered oxide material for the cathode of a sodium-ion battery, its preparation method, and its application. The general chemical formula of the titanium-doped layered oxide material for the cathode of a sodium-ion battery is Na. x Ni (1‑y) / 2 Mn (1‑y) / 2 Ti y O2, 0.7≤x<1, 0.01≤y<0.3; In the titanium-doped sodium-ion battery cathode layered oxide material, titanium ions are tetravalent, manganese ions are trivalent and tetravalent, and nickel ions are divalent; The titanium-doped sodium-ion battery cathode layered oxide material is used as the positive electrode active material for sodium-ion secondary batteries. During the first week of charging, nickel ions change from divalent to tetravalent, and trivalent manganese ions change from trivalent to tetravalent; During the first week of discharging, nickel ions change from tetravalent back to divalent. In the charging and discharging process after the second week, only nickel ions change valence, while manganese and titanium ions do not change valence.

This invention discloses a barium titanate-based piezoelectric ceramic with high temperature stability and its preparation method. The ceramic has the following characteristics: Ba 1‑x Ca x Ti 1‑y Zr y O3, 0.17≤x≤0.19, 0.11≤y≤0.13. The ceramic uses BaTiO3 as the basic research system. By replacing some barium ions with calcium ions and some titanium ions with zirconium ions, the phase transition temperature of barium titanate is adjusted, so that it maintains stable piezoelectric properties over a wider temperature range, i.e., it has high temperature stability. Furthermore, by doping with calcium and zirconium sources to change the morphology and distribution of electric domains, the piezoelectric coefficient of the ceramic is increased.