7 results about "Borenium ion" patented technology

The invention discloses a production method of a high-efficiency boron-removing ion exchange membrane, which comprises the following steps of: weighing special CH-99 boron ion chelating resin, A-23 strong-base anion exchange resin and modified high-density polyethylene according to a ratio, putting into a high-speed mixing stirrer, uniformly mixing at normal temperature, mixing, cutting into small blocks of materials, and granulating to obtain the high-efficiency boron-removing ion exchange membrane. Feeding into an extruder, and calendering into sheets; according to the production method of the high-efficiency boron-removing ion exchange membrane, the total exchange capacity of the ion exchange membrane made of the boron-removing ion exchange resin reaches 0.8 meq / ml, the equilibrium boron content reaches 5.7 meq / ml, and the boron treatment capacity is improved by 2-3 times compared with that of a common membrane, so that no crystal is generated after most of boron elements are taken out from an electrode water chamber, a runner is ensured to be unblocked, and the service life of the membrane is prolonged. And the preparation method is simple and reasonable, and has the advantages of mild reaction conditions, high yield, low energy consumption, few pollutants and suitability for large-scale production.

The invention provides a boron-zinc double-doped manganese-rich-based positive electrode material coated with a nitrogen-containing carbon material and a preparation method and application thereof, and belongs to the technical field of electrode materials. The preparation method comprises the following steps: mixing a manganese-based ternary hydroxide precursor, a lithium salt and zinc borate, and then carrying out ball milling treatment and calcination treatment to obtain the boron-zinc double-doped manganese-rich-based positive electrode material. And mixing the boron-zinc double-doped manganese-rich-base positive electrode material and a nitrogen-containing organic matter in a solvent, and then carrying out spray drying and carbonization treatment to obtain the nitrogen-containing carbon material coated boron-zinc double-doped manganese-rich-base positive electrode material. Boron ions and zinc ions are embedded into the boron-zinc double-doped manganese-rich-based positive electrode material coated with the nitrogen-containing carbon material, the outside of the boron-zinc double-doped manganese-rich-based positive electrode material coated with the nitrogen-containing carbon material is coated with the nitrogen-containing carbon layer, boron-oxygen chemical bonds in the positive electrode material are stabilized through doping of the boron ions, meanwhile, oxygen loss is prevented, and the interplanar spacing of the material is increased through doping of the zinc ions; and meanwhile, the layered electrode is supported and protected in the charging and discharging process, so that the process of converting the layered material into spinel is inhibited.

The invention discloses a boron isotope-based method for identifying underground water polluted by flowback fluid, and relates to the technical field of environmental protection. The method comprises the following steps: depicting a boron isotope equilibrium fractionation state between a water-containing medium and underground water before pollution; after pollution occurs, when boron ions and boron isotopes in flowback fluid and underground water are only conservatively mixed but not subjected to new equilibrium fractionation, the ratio of the boron isotopes in the mixed liquid is conservative under different pollution intensities; when boric acid in the polluted water body reaches new hydrolysis equilibrium and boron isotope equilibrium fractionation is initiated, the boron concentration and the boron isotope ratio are adsorbed to the water-containing medium through new equilibrium fractionation; according to the isotope conservative binary mixed model, the boron isotope ratio and the boron concentration of the polluted underground water are obtained, a response curve of the boron isotope and the boron concentration of the polluted underground water is constructed, and early pollution is recognized. By establishing the boron isotope quantitative model of the underground water polluted by the flow-back fluid, the accuracy of a pollution result reflecting real field conditions is improved.

This invention relates to the field of metallurgical pelletizing technology, and discloses a method for batching highly reducible pellets based on secondary iron-bearing resources. The method includes the following steps: 80.0 to 84.77 parts by weight of secondary iron-bearing resources, 13.0 to 16.25 parts by weight of iron concentrate, and 1.5 to 2.5 parts by weight of light-calcined magnesia are mixed at high shear to obtain a mixed dry powder; the mixed dry powder is fed into a pelletizer, and a calcium-boron double-crosslinked lignin hydrosol containing 0.73 to 1.25 parts by weight of dry basis components is sprayed to obtain green pellets; the green pellets are then sequentially subjected to hot air flow drying, preheating treatment, and solid-phase roasting to obtain pellets, which are then cooled. In this invention, the hydrosol forms a physical barrier layer at the interface of the light-calcined magnesia particles, slowing down the penetration of free water molecules into the interior and inhibiting the volume expansion caused by magnesia hydration; the residual boron ions from solid-phase roasting decompose into the iron mineral crystals penetrate into the interior, causing lattice distortion and reducing the reduction activation energy.

This invention discloses an iodonium salt photoinitiator and its application in the preparation of treatment-free CTP thermal printing plates. The general formula of the iodonium salt photoinitiator is shown in Formula 1, wherein R1 is a substituted or unsubstituted alkyl or substituted or unsubstituted alkoxy group having 2-9 carbon atoms, and R2, R3, R4, and R5 are independently hydrogen atoms, alkyl groups, halogens, hydroxyl groups, carboxyl groups, amino groups, alkoxy groups, ester groups, nitro groups, and are tetraphenylboron ions, boron tetrafluoride ions, boron hexafluoride ions, phosphorus hexafluoride ions, arsenic hexafluoride ions, tellurium hexafluoride ions, halide ions, perchlorate ions, acetate ions, or trifluorosulfonate ions. The iodonium salt photoinitiator with the structure of this application can be used to prepare treatment-free CTP thermal printing plates, and can improve digital imaging speed and reduce crystals in the precursor of the formed negative lithographic printing plate. At the same time, the prepared treatment-free CTP thermal printing plate has excellent imaging speed and printing durability.

The application discloses a preparation process of a boron adsorption purification filter element for an ultrapure water system, and comprises the following steps: step one, selecting PTFE nanofiber nonwoven felt as a base material; step two, performing plasma pretreatment on the PTFE nanofiber nonwoven felt; step three, placing the activated PTFE nanofiber nonwoven felt in an initiation type chemical vapor deposition device, performing vacuum pumping, selecting GMA, EGDMA and an initiator TBPO to perform initiation type chemical vapor deposition, and depositing a polymer film according to the same gradient pressure to obtain modified PTFE felt; step four, immersing the modified PTFE felt in a 5% NMG solution to perform cyclic immersion; and finally, performing multiple cyclic washing. The preparation process of the boron adsorption purification filter element for the ultrapure water system is very superior in boron removal effect, can make boron ions reach a trace level, and the prepared boron adsorption purification filter element has little TOC dissolution.

The invention relates to boron fluoride mixed gas and application thereof in an ion implantation system, a fluid supply container is filled with mixed gas in sequence, the mixed gas is composed of doped gas and hydrogenated gas, the doped gas is boron fluoride, the volume percentage of the boron fluoride is 90%-95%, the volume percentage of the hydrogenated gas is 5%-10%, and the volume percentage of the doped gas is 5%-10%. By introducing the hydrogenated gas and optimizing the ratio of the hydrogenated gas to boron fluoride, higher and more stable boron ion beam output can be realized under the condition of lower gas flow when the device is applied to an ion implantation system, and the stable operation time is remarkably prolonged.