420 results about "Borate salt" patented technology

The invention discloses a series of alkali metal borate compounds and alkali metal borate crystals as well as a preparation method and application thereof, and belongs to the technical field of photoelectric functional crystal materials. The chemical general formula of the series of compounds and crystals thereof is A3RE (B3O6) 2, wherein A is K, Rb, Cs or NH4; rE = Sc and Y, the molecular weight is 355.93-744.48, the series of crystals belong to a trigonal system, the space group is P321, the cell parameters a = b = 10.5237 (13)-135237 (13), and # imgabs0 # Z = 3. The series of alkali metal borate compounds are synthesized by adopting a solid-phase reaction method or a hydrothermal method, and the series of crystals grow by adopting a high-temperature melt method or a hydrothermal method or a solution method. The series of materials can be used for manufacturing second harmonic generators, upper and lower frequency converters, optical parametric oscillators, polarizing prisms and the like.

The invention discloses a porous ceramic filter for liquid magnesium alloy purification and a preparation method thereof, and the porous ceramic filter comprises the following raw materials in percentage by mass: 70-85wt% of ceramic particles, 8-15wt% of multi-element oxide system microcrystalline glass brazing filler metal and the balance of a binder, al2O3-B2O3-SiO2-MgO-CaO multi-element oxide system microcrystalline glass brazing filler metal is adopted, under the condition of air atmosphere high-temperature calcination, a compact reaction layer containing a low-melting-point glass phase, an aluminum oxide phase, a magnesium aluminate spinel phase, a calcium aluminosilicate phase, a borate phase and a silicate phase is generated on the surfaces of ceramic particles of a porous ceramic filter through a chemical reaction; the magnesium alloy filter has high strength and good high-temperature stability, and the problems that the filter loses efficacy and magnesium alloy melt is polluted due to the fact that the filter is eroded by magnesium alloy liquid are effectively solved.

The invention discloses high magnetic induction oriented silicon steel and a production method. The high magnetic induction oriented silicon steel comprises the following components in percentage by weight: 0.032 to 0.065 percent of C, 2.58 to 4.02 percent of Si, 0.014 to 0.036 percent of Als, 0.021 to 0.043 percent of Mn, 0.0015 to 0.014 percent of Nb, 0.0015 to 0.0084 percent of B, 0.0037 to 0.0081 percent of N and 0.004 to 0.015 percent of S. A large amount of B element is added, a proper amount of BN and other congenital inhibitors can be provided, the situation that primary grains are too large is effectively avoided, meanwhile, boron oxide, boric acid and borate are added into the magnesium oxide additive, an acquired inhibitor can be generated with N, an AlN + BN double-inhibitor system is formed, and the stability of magnetic performance is guaranteed; and the temperature is kept at 910-1005 DEG C for 18-25 hours, so that B is fully diffused and forms a new BN inhibitor with N, and the stability of the magnetic performance is effectively improved.

The invention discloses an electrolyte and a battery. The electrolyte comprises a solvent, a lithium salt and an additive, the solvent comprises acetonitrile and carboxylic ester, the additive comprises a first additive, a second additive and a third additive, the first additive is at least one of phosphate, borate, fluorophosphate and fluoborate with a film-forming potential of 1.3-2V, and the third additive is at least one of lithium salt and fluoborate with a film-forming potential of 1.3-2V. The second additive is at least one of a sulfur-containing additive, a boron-containing additive and a phosphorus-containing additive, and the third additive is a negative electrode film-forming additive; and Y is more than 0.025 and less than 60. According to the invention, a solvent system and an interface film forming mechanism of the electrolyte are synergistically regulated and controlled, so that the core problem of violent side reaction between the acetonitrile-based electrolyte and the negative electrode is solved, and meanwhile, the combination of high energy density and ultrafast charging performance is realized. The electrolyte is suitable for high-energy-density, wide-temperature-range and fast-charging type lithium iron phosphate batteries.

The invention relates to viologen-anthraquinone composite electrochromic liquid and a preparation method thereof, the viologen-anthraquinone composite electrochromic liquid comprises 1.2-2.5 parts by mole of viologen salt, 0.8-1.5 parts by mole of anthraquinone derivative and 8-12 parts by mole of electrolyte; the viologen salt is ethyl viologen tetrafluoroborate or heptyl viologen tetrafluoroborate or octyl viologen tetrafluoroborate; the anthraquinone derivative is 1-ethylamino-4-hydroxy anthraquinone or acid blue 43; the preparation method comprises the following steps: preparing an electrolyte solution; adding purple refined salt and anthraquinone derivatives according to the formula; fully dissolving the electrochromic material to form uniform and transparent initial liquid; and degassing the initial liquid to remove oxygen dissolved in the initial liquid. The electrochromic liquid has the advantages that after the purple refined salt and the anthraquinone derivative are added into the dissolving solution according to the proportion of the formula, the two color-changing materials are jointly dissolved in the electrolyte, and when the two color-changing materials are reduced at the same time, spectrum superposition absorbed by the two color-changing materials can cover the whole visible region, so that black and white switching of the electrochromic liquid is realized, and the use effect is good.

The present application relates to the field of fine chemical industry, and particularly to a preparation method of sodium tetrafluoroborate; the present application uses hydrofluoric acid, boric acid and soda to prepare sodium tetrafluoroborate; the present application uses evaporation, polar organic solvent dissolution, separation, modified polytetrafluoroethylene membrane fine filter filtration, cooling crystallization and the like to purify sodium tetrafluoroborate; the present application uses a polytetrafluoroethylene membrane filter core, vinyl guanidine, sodium acrylate, 1-allyl-3-ethyl imidazole tetrafluoroborate, an initiator and deionized water to prepare a modified polytetrafluoroethylene membrane filter core; the modified polytetrafluoroethylene membrane filter core prepared by the present application can effectively improve the purity of sodium tetrafluoroborate; the present application has the characteristics of low cost, simple process, low toxicity and environmental friendliness; the present application has mild reaction conditions in the preparation process, is easy to operate, has low energy consumption and high product purity.

An electrolyte, a battery cell, a battery and an electrical apparatus, belonging to the technical field of batteries. Fluorophosphate and / or borate is added into an electrolyte containing a low-viscosity solvent, and due to low LUMO energy levels, the fluorophosphate and the borate readily accept electrons and undergo reduction after being added into the electrolyte, so as to form a stable SEI film on the surface of a negative electrode active material, thus blocking contact between the low-viscosity solvent and the surface of the negative electrode active material, reducing the reduction of the low-viscosity solvent, and inhibiting further side reactions on the negative electrode sheet side. Meanwhile, the fluorophosphate and the borate can be combined with metal ions on the surface of a positive electrode active material to form ionic bonds, such that the phenomenon of surface overdelithiation of the positive electrode active material is reduced, thus effectively reducing structural damage to the positive electrode active material, and reducing side reactions between the electrolyte and the positive electrode sheet side. Reducing side reactions between electrolytes and both the negative electrode sheet side and the positive electrode sheet side is conductive to the service life of batteries.

The invention relates to the technical field of thermal insulation materials, in particular to a high-temperature-resistant aerogel composite material and a preparation method thereof. The high-temperature-resistant aerogel composite material is prepared from the following components in parts by weight: 15 to 35 parts of reinforced fiber matrix, 43 to 65 parts of silicon-aluminum-zirconium ternary aerogel network, 3 to 12 parts of functional nano filler, 2 to 8 parts of zinc borate flame-retardant component and 0.5 to 2 parts of surface hydrophobic modified layer. Wherein the reinforced fiber matrix is composed of aluminum silicate fibers, silicon carbide fibers and aluminum oxide nanofibers; the molar ratio of silicon to aluminum to zirconium in the silicon-aluminum-zirconium ternary aerogel network is 5: 2: 1; the functional nanofiller comprises aluminum oxide nanoparticles, titanium oxide nanoparticles, carbon nanotubes and boron nitride nanosheets; the zinc borate flame-retardant component is zinc borate; the surface hydrophobic modification layer comprises an inner methyltrimethoxysilane modification layer and an outer hexamethyldisilazane modification layer. The high temperature resistance and thermal shock resistance of the material are remarkably improved, a low-energy-consumption preparation process is adopted, and the material has excellent comprehensive performance.

The present invention relates to the technical field of cable preparation, and in particular to a low-temperature-resistant, flame-retardant, and UV-resistant PVC cable sheath composition, a preparation method thereof, and a cable. The composition is based on polyvinyl chloride, supplemented with a chlorinated polyethylene elastomer, an environmentally friendly plasticizer, and a calcium-zinc stabilizer, and introduces nano-magnesium hydroxide, zinc stannate, passivated zinc borate, sodium tungstate, and modified montmorillonite to form a multi-component synergistic flame retardant system, which significantly improves the flame retardancy, low smoke properties, and thermal stability of the material. At the same time, through the synergy of ultraviolet absorbers and antioxidants, the weather resistance and service life of the material are enhanced. The prepared cable sheath material has excellent low-temperature flexibility, flame retardant and smoke suppression properties, and ultraviolet aging resistance, and is suitable for high-performance cable applications in harsh environments.

The invention provides a polymer electrolyte, a secondary battery and a preparation method of the polymer electrolyte and the secondary battery. The non-aqueous electrolyte comprises an organic solvent, an electrolyte salt, a borate derivative with the mass fraction of 0.1%-15%, a sulfonyl-containing cross-linking agent A with the mass fraction of 0.1%-4%, a cross-linking agent B at least containing three carbon-carbon double bonds and an initiator, the mass ratio of the cross-linking agent B to the cross-linking agent A is (1-100): 1, the mass fraction of the borate derivative is 0.1%-15%, the mass fraction of the sulfonyl-containing cross-linking agent A is 0.1%-4%, and the mass fraction of the initiator is 0.1%-1%. The mass ratio of the sum of the mass of the borate derivative, the cross-linking agent A and the cross-linking agent B to the mass of the initiator is (1000-20): 1. The polymer electrolyte provided by the invention has high ionic conductivity, can improve the safety performance of a battery in a high proportion state, and can maintain good cycle performance at the same time.

The invention discloses 5-hydroxymethylfurfural and a preparation method thereof, and belongs to the technical field of chemical engineering. The preparation method comprises the following steps: reacting a homogeneous aqueous solution containing fructose, inorganic salt and an acid catalyst in a multi-kettle series reactor to obtain the 5-hydroxymethylfurfural, the inorganic salt is selected from at least one of halogen compounds, borides, silicate, aluminate, phosphate and borate; the acidic catalyst comprises at least one of water-soluble acids. The specific inorganic salt and the specific acid catalyst are added and can play a synergistic role, the reaction is carried out under multi-kettle series connection, the backmixing degree of the reaction materials in the reactor is maximized, side reactions can be effectively controlled, black rot is avoided, the reaction production efficiency and conversion rate are effectively improved, the reaction selectivity is improved, and the method is suitable for industrial production. And the equipment maintenance and labor cost is greatly reduced.

The invention discloses a refining impurity cleaning and removing process for secondary copper, which comprises the following steps: (a) pretreatment melting: melting a secondary copper raw material to form copper liquid, and controlling the temperature to be 1150-1250 DEG C; (b) oxidizing and slagging: introducing oxygen-containing gas into the copper liquid for 20-40 minutes to oxidize impurity elements to form scum; according to the refining impurity cleaning and removing process for the secondary copper, As and Sn are converted into high-valence oxides through oxidation, then a low-melting-point borate slag system is formed through borax in the composite flux, and efficient trapping of impurities is achieved. The mass transfer process is enhanced, flux agglomeration is avoided, and the impurity removal rate is increased by 30% or above. The borax / calcium fluoride combination significantly reduces the melting point of the slag system (actually measured lt; and the lead and tin removal efficiency is improved.

The invention discloses application of 2-aminoethoxy diphenyl borate (2-APB) in preparation of a medicine for improving endometrial receptivity and treating diseases related to the endometrial receptivity, and belongs to the technical field of biological medicine. A large number of experiments prove that 2-APB specifically activates a TRPM6 channel, enhances calcium ion influx and activates a calcium-dependent CaM-CaMKII-Ecadherin signal axis, so that expression of receptivity markers (such as E-cadherin and ICAM-1) is up-regulated, and endometrial receptivity is improved. The problems of poor targeting property and high toxicity of the traditional calcium ion carrier are solved, and a safe and effective treatment strategy is provided for a patient suffering from repeated implantation failure (RIF).

The present disclosure provides a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte of the present disclosure includes a lithium salt, an organic solvent, and an additive. The additive includes a cyclic borate-based compound so as to prevent the decomposition of the non-aqueous electrolyte of the lithium secondary battery in a high-power environment that could lead to negative electrode degradation, or to further improve low-temperature high-rate discharging characteristics, high-temperature stability, overcharging prevention, and high-temperature battery expansion suppression effects

The application discloses a kind of flame-retardant TPU composite material and preparation method thereof, belong to the field of plastic processing.It is with melamine, phenyl boronic acid as raw material preparation melamine phenyl borate, and with magnesium-aluminum layered double hydroxide compounding, using melt blending, extrusion molding method prepares a kind of flame-retardant TPU composite material.The obtained flame-retardant TPU composite material has excellent mechanical properties, thermal stability and flame-retardant performance, it can realize surface rapidly carbonization when burning test, with strong smoke suppression effect, and can realize rapid off-fire self-extinguishing.

A borate compound-containing composition soluble in hydrocarbon solvents. A composition containing base A, or a compound having a total carbon number of not less than 8 and represented by the formula (5):wherein R and R′ are each independently an optionally substituted C1-30 alkyl group, an optionally substituted C3-15 cycloalkyl group, or an optionally substituted C6-14 aryl group; anda borate compound represented by the following formula (1):wherein R1, R2, R3 and R4 are each independently a C6-14 aryl group substituted by one or more fluorine atoms or fluoro C1-4 alkyl groups; and[A-H]+ is a base A-derived cation. A method for producing a polymer, by polymerizing at least one kind of monomer selected from the group consisting of olefins and dienes by using the composition A as a cocatalyst.

The invention discloses a low-smoke flame-retardant cold-resistant wear-resistant TPE (thermoplastic elastomer) cable composite material as well as a preparation method and application thereof, and relates to the technical field of cable materials. The TPE cable composite material comprises the following components: SEBS, polypropylene, an ethylene-vinyl acetate copolymer, a compatilizer, a composite flame retardant, an inorganic filler and an irradiation crosslinking auxiliary agent, and the composite flame retardant comprises a hydroxide flame retardant and a carbon-forming flame retardant; the inorganic filler comprises silane modified glass flakes and borate whiskers. The TPE cable composite material disclosed by the invention has high dielectric strength, high tear resistance and high flexibility, and the specific inorganic filler and the composite halogen-free flame retardant are added, so that the material can balance the cold resistance, wear resistance and low smoke density.

A method for treating a metal surface in a surface preparation system. The method includes providing a treatment composition comprising amine borate, an organic corrosion inhibitor, and at least one surfactant, applying the treatment composition to a surface of the metal in the surface preparation system, and forming a protective anti-corrosion film on the surface of the metal.

The present invention relates to a sulfide-based solid electrolyte containing lithium (Li), phosphorus (P), sulfur (S), boron (B), and a plurality of halogen elements and having an argyrodite-type crystal structure, wherein the sulfide-based solid electrolyte satisfies formula 1. [Formula 1] 3.6 ≤ (CxB) / A ≤ 5.5 In formula 1, A is Dmax measured by a laser diffraction and particle size distribution measurement method, B is D50, and C is an elastic modulus measured using an atomic force microscope (AFM).

The invention discloses a borate-based near-infrared luminescent material as well as a preparation method and application thereof, and belongs to the technical field of near-infrared luminescent materials. The chemical general formula of the borate-based near-infrared luminescent material disclosed by the invention is Y1-xGa3 (BO3) 4: xEr < 3 + >, and x is more than or equal to 0.05 and less than or equal to 0.25. By regulating the doping proportion of the Er < 3 + > component, the light-emitting peak position and the light-emitting efficiency are finely regulated; a rare earth ion Er < 3 + > is doped in a Y1-xGa3 (BO3) 4: xEr < 3 + > compound to form a luminescent material with a new component, the excitation peak value of the luminescent material is 365 nm ultraviolet light and 980 nm near-infrared light, the emission wavelength is within the range of 1400-1700 nm, the luminescent material can be well matched with an ultraviolet light chip, and the technical problem that the existing fluorescent powder is difficult to realize near-infrared band luminescence is solved.

There is provided an on-press development type lithographic printing plate precursor including a support, and an image-recording layer provided on the support, in which the image-recording layer contains (1) or (2).(1) a borate compound represented by Formula (1) and an electron-accepting polymerization initiator(2) a borate compound represented by Formula (1a)in Formula (1) and Formula (1a), R1, R2, R3, and R4 each independently represent a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkynyl group, and R1, R2, R3, and R4 may each independently have a ring structure. Provided that at least one of R1, R2, R3, or R4 is different from the other. M+ represents a cation. Ma+ represents an iodonium cation.

The present disclosure relates to a method of forming electrical signal sensor. The method includes the following operations. An oxidoreductase and an amphiphilic molecule are dissolved into a solvent to form a solution, in which the amphiphilic molecule includes alkyl sulfuric acid, alkyl sulfate, alkyl sulfonic acid, alkyl sulfonate, alkyl ammonium, alkyl ammonium salt, alkyl phosphoric acid, alkyl phosphate, alkyl carboxylic acid, alkyl carboxylate, alkylboronic acid, alkylborate, or combinations thereof. The solution is coated on an electrode layer. The solution is dried.

A method of making a mineral foam comprising: (a) providing an aqueous cementitious slurry comprising a cementitious binder, a foam stabilizer, and a coagulation control agent; and (b) foaming the cementitious slurry; wherein the coagulation control agent comprises (i) an alpha-hydroxymonocarboxylic acid or a salt thereof and (ii) a source of oxyanions selected from the group consisting of a borate source and a carbonate source. An accelerator selected from the group consisting of an aluminum ion source, an aluminate source, and a silicate source may be added to the cement-based slurry. The method allows for the calcination of clay cement using ordinary Portland cement or limestone without compromising the final strength of the mineral foam.

The invention discloses a preparation method and application of a pydiflumetofen intermediate, and the method comprises the following step: in the presence of cuprous oxide or cuprous salt and acid, synthesizing 2, 4, 6-trichlorobenzene diazonium fluoroborate and isopropenyl acetate into the pydiflumetofen intermediate of formula I, according to the invention, 2, 4, 6-trichloroaniline which is cheap and easy to obtain is used as a raw material to improve a Meerwein arylation reaction method, and finally industrial cheap and mass production of the intermediate I is realized.

The present invention relates to a gel-type polymer electrolyte, a lithium metal battery comprising same, and a method for manufacturing same and, more specifically, comprises: an organic solvent; a lithium salt; an additive; and a crosslinked polymer, wherein a current collector includes an organic phosphate, the lithium salt includes at least one of a borate-based lithium salt and a fluorine-based lithium salt, and the organic phosphate is a low-molecular compound having a molecular weight (Mw) of 100-400 g / mol and is dispersed in the organic solvent.

The invention discloses borate rare earth-based high-entropy ceramic nanofibers and a preparation method thereof, and relates to the technical field of high-entropy ceramics, and the preparation method comprises the following steps: sequentially adding a spinning aid, rare earth salt and boric acid into a solvent, and uniformly stirring to obtain a spinning solution; performing electrostatic spinning and pre-oxidation on the spinning solution to obtain a pre-oxidized precursor fiber; and placing the pre-oxidized precursor fiber in inert gas, calcining at high temperature, and cooling to obtain the borate rare earth-based high-entropy ceramic nanofiber.

Provided are methods of producing cobalt-based nanoparticles (CoxBy NPs) of a pre-selected diameter. The methods include reducing Co2+ ions with a sodium borohydride (NaBH4) solution having a selected ratio of tetrahydroxyborate (B(OH)4−) to tetrahydroborate (BH4−) based on the pre-selected diameter, where the ratio of B(OH)4− to BH4− is positively correlated with the pre-selected diameter. Also provided are methods of using the CoxBy NPs to produce hollow metal nanospheres (HMNs). Methods of producing CoxBy NP core / metal shell structures are also provided, such methods including combining in an anaerobic galvanic exchange reaction a deaerated solution including CoxBy NP scaffolds and a deaerated solution including a metal. Also provided are methods of producing HMNs from the CoxBy NP core / metal shell structures. Compositions and kits that find use in practicing the methods of the present disclosure and using HMNs produced in accordance with the methods of the present disclosure, are also provided.

The invention discloses a preparation method of a cyanoborate lithium salt derivative, which comprises the following steps: 1, mixing an alcohol compound, a lithium source compound, a boron source compound and trimethylsilyl cyanide in a polar organic solvent, and filtering after complete reaction to obtain a cyanoborate crude product filtrate; the alcohol compound is selected from one of 2, 2, 2-trifluoroethanol, 2, 2-difluoroethanol, 2-fluoroethanol, 3-hydroxypropionitrile, allyl alcohol and propargyl alcohol; the lithium source compound is selected from one of lithium carbonate and lithium hydroxide; the boron source compound is selected from one of boric acid, diboron trioxide and boron tribromide; the reaction temperature is controlled to be 0-120 DEG C; and 2, adding an inert organic solvent into the cyanoborate crude product filtrate for crystallization, and performing vacuum drying to obtain a finished product of the cyanoborate lithium salt. The method has the advantages of high yield and purity, simple process, convenience in operation and low cost, and is extremely suitable for industrial production.

The invention provides 4-methyl-1-pentene and a preparation method of the 4-methyl-1-pentene. The preparation method comprises the following steps: carrying out dimerization reaction on propylene in a reactor of a fixed bed to obtain a dimerization product system; carrying out gas-liquid separation on the dimerization product system to obtain a liquid phase system containing 4-methyl-1-pentene; 4-methyl-1-pentene is obtained through separation from the liquid phase system; the fixed bed reactor is filled with a catalyst, and the catalyst comprises a carrier and alkali metal loaded on the carrier; the carrier is obtained by mixing and molding alkali metal salt, cyclodextrin and derivatives thereof, graphite, a reinforcing agent and water and then roasting; the reinforcing agent is selected from borate and / or silicate. The preparation method can improve the selectivity of 4-methyl-1-pentene and the conversion rate of propylene.

The embodiment of the invention discloses a preparation method of a concentrated lactulose solution. The method comprises the following steps: by taking a lactose solution as a raw material and sodium sulfite as a catalyst, carrying out an isomerization reaction in the presence of alkali, and then sequentially carrying out primary crystallization, primary centrifugal separation, deionization treatment, concentration, secondary crystallization, secondary centrifugal separation, filtration and concentration adjustment to prepare the concentrated lactulose solution. According to the method, a raw material recycling mode of'reaction-separation-circulation 'is adopted, lactose which does not participate in an isomerization reaction is recycled by adopting two-time crystallization centrifugal separation operation, and the lactose is put into the isomerization reaction again, so that the recycling of the raw materials is realized. The method effectively avoids the problem of environmental pollution caused by boric acid or borate as a catalyst, simplifies the process, reduces the cost, has high product purity, and is suitable for industrial large-scale production.