165 results about "Antimony pentoxide" patented technology

A flame retardant, intumescent pressure sensitive adhesive (PSA) composition for EMI shielding gaskets, tapes, wraps, and the like. The composition is formulated as an admixture of: (a) a PSA component; (b) a halogenated first flame retardant component; (c) a metal-based second flame retardant component; and (d) a filler component of expandable, intercalated graphite particles. In a representative embodiment the PSA component (a) is acrylic-based, the halogenated first flame retardant component (b) is a polybrominated diphenyl compound such as decabromodiphenyl oxide or decabromodiphenyl ether, the metal oxide-based second flame retardant component (c) is antimony oxide, antimony trioxide, or antimony pentoxide, and the filler component (d) is graphite flake.

The invention discloses a novel anti-flaming anti-static electricity polypropylene dedicated material and a preparation method thereof; the dedicated material is prepared by the following raw materials by mass percentage: 40-70 percent of polypropylene resin or polypropylene/ nylon alloy or polypropylene/nylon/PP-g-MAH, 20-40 percent of formulated fire retardant, 4-10 percent of electric-conduction fillers, and 6-15 percent of inorganic fillers; the formulated fire retardant is formulated by several kinds of compound A, compound B, ammonium polyphosphate, tetramethylolmethane, magnesium hydroxide, aluminium hydroxide and tripolycyanamide, the compound A is bromocyclohexane or hexabromocyclododecane, the compound B is antimony trioxide or antimony pentoxide; the inorganic filler adopts montmorillonoid, hydrotalcite, talcum powder or attapulgite clay. The novel anti-flaming anti-static electricity polypropylene dedicated material prepared by the invention has good flame retardant property and good anti-static electricity performance, the mechanical intensity of the material is further improved after the alloy is prepared by adding the nylon, the used raw material has low cost and is environment-protection, and no melt body drops in the anti-flaming process.

The invention discloses a preparation method of 2-chloro-5-tirfluoromethylpyridine. The invention provides a preparation method of 2-chloro-5-tirfluoromethylpyridine, and the preparation method comprises the following steps of: reacting 2-chloro-5-trichloromethylpyridine with hydrogen fluoride in a closed system in the presence of a catalyst to obtain the 2-chloro-5-tirfluoromethylpyridine, wherein the catalyst is antimony trioxide and/or antimony pentoxide. The invention further provides a preparation method of a compound 2, and the preparation method comprises the following steps of: reacting a compound 3 with ammonia in the presence of alkali to obtain the compound 2. The preparation method provided by the invention is cheap and liable to obtain raw materials, low in cost, few in reaction by-products, simple in post treatment, safe to operate, environment-friendly and suitable for large-scale industrial production.

The invention relates to a catalytic cracking metal passivator and a preparation method thereof, in particular to a water-soluble catalytic cracking metal passivator and a preparation method thereof. The metal passivator comprises a nickel passivator and a vanadium passivator, wherein the nickle passivator is antimony pentoxide hydrosol; the vanadium passivator is an organic acid salt aqueous solution of lanthanum or cerium; and in the passivator, the antimony content is 8-30 percent, the lanthanum or cerium content is 0-7 percent, and the rest is water. In the invention, a preparation process of hydrogen peroxide is adopted, so that reaction time is short, external heating is not required, energy is saved, consumption is lowered, and the prepared passivator is convenient to use, has stable property, and can be dissolved mutually and infinitely with water.

The invention relates to a method for processing antimony smelting slag, in particular to a method for comprehensively processing antimony smelting arsenic-alkali slag and preparing colloidal antimony pentoxide. The method mainly comprises four processes including water leaching, acid leaching, hydrolysis and colloid making. The antimony oxide obtained from hydrochloric acid leaching and hydrolyzing adopts the oxidation reflux process to prepare the colloidal antimony pentoxide. In the method, the arsenic-alkali slag is subjected to wet processing, antimony resources are recovered while treating the antimony pollution and the colloidal antimony pentoxide is prepared, thereby realizing the recycling of the resources.

The invention relates to an environment friendly microwave medium ceramic substrate which is mainly used for the circuits of microwave and millimeter wave satellite communication products, military radar products, electronic navigation products, microwave safety monitoring products, and the like. The substrate is prepared by adopting the following steps of: directly mixing ceramic microcrystal powder with polytetrafluoroethylene (PTFE) powder, PTFE emulsion, glass fiber powder, liquid-state epoxy resin and PVA (Polyvinylalcohol) solution raw material and micro flame-retardant additive raw materials: brominated resin, antimony pentoxide (Sb2O5) and bismuth trioxide (Bi2O3); carrying out blooming, primary drying, laminating, finish rolling, two-surface or two-way continuous sizing, redrying, two-surface or two-way continuous copper foil coating, tailoring and high-pressure lamination; then vacuumizing and curing for 50-60min at low temperature of 170-200 DEG C. The invention does not contain Nb heavy metal components and has good properties of microwave high frequency band low dielectric Epsilonr, low loss tan delta, high signal transmission efficiency and high stability and the advantages of simple process and low sintering temperature and can be cofired with a silver electrode.

The invention provides a process for preparing antimony pentoxide ethanol dispersion comprising, charging antimony trioxide and dispersion stabilizer into ethanol, oxidizing antimony trioxide into antimony pentoxide by hydrogen dioxide, preparing the outcome yield with content of antimony pentoxide over 5% through reaction solution concentration and dewatering. The dispersion stabilizer is tertiary amine formed by straight chain groups, and anhydrous alcohol is used as dewatering agent.

The invention discloses an EVA (ethylene-vinyl acetate) elastomer sheath material for wind power generation torsion-resistant flexible cables and a preparation method thereof. The EVA elastomer sheath material for wind power generation torsion-resistant flexible cables comprises the following components in parts by weight: 60-70 parts of EVA, 30-40 parts of CPE (chlorinated polyethylene), 20-25 parts of acetylene smoke, 10-15 parts of modified nano SiO2, 30-50 parts of talcum powder, 5-10 parts of antimony pentoxide, 1-2 parts of polytrimethyldihydroquinoline, 10-15 parts of dicyclohexyl phthalate, 2-3 parts of lead stearate, 3-5 parts of disalt-base lead phthalate, 1-2 parts of vinyltriethoxysilane and 6-8 parts of DCP (dicumyl peroxide). The sheath material disclosed by the invention has the advantages of excellent physical and mechanical properties, favorable high/low temperature resistance, favorable oil resistance, favorable solvent resistance, favorable wear resistance, favorable ozone resistance, favorable aging resistance, favorable flame retardancy, low smoke, high flexibility, torsion resistance and the like, is very durable, environment-friendly and pollution-free, and can completely satisfy the requirements for wind power generation flexible cables.

The invention relates to a method for processing antimony smelting slag, in particular to a method for comprehensively processing antimony smelting arsenic-alkali slag and preparing colloidal antimony pentoxide. The method mainly comprises three processes including water leaching, acid leaching and hydrolysis. The colloidal antimony pentoxide is prepared by an oxidation-hydrolysis method. In the method, the arsenic-alkali slag is subjected to wet processing, antimony resources are recovered while treating the antimony pollution and the colloidal antimony pentoxide is prepared, thereby realizing the recycling of the resources.

The invention relates to a process for producing diantimony pentoxide having a high oxidation purity.

A process for producing an aqueous sol of diantimony pentoxide, which comprises mixing diantimony trioxide (Sb₂O₃) and an aqueous hydrogen peroxide solution in an aqueous medium, and after the temperature has reached from 50 to 80° C., reacting the diantimony trioxide with the aqueous hydrogen peroxide solution while keeping the reaction temperature at a level not higher by at least 10° C. than a desired set temperature in the temperature range, to thereby obtain a sol having dispersed in the aqueous medium diantimony pentoxide particles which have a primary particle size of from 2 to 50 nm and which have a diantimony trioxide/diantimony pentoxide weight ratio of not higher than 5 wt %.

The invention relates to modified zirconia fine particles, substrate with hard coat film and coating solution for forming hard coat film. The modified zirconia fine particles are zirconia fine particles having their surfaces coated with antimony pentoxide and/or silica, and having their surface potentials in a range of -120 to -10 mV, as measured by the following conditions: condition (1): a solid content concentration of 1% by weight in a dispersion solution of the modified zirconia fine particles; and conditions (2): a pH in a range of 2 to 13 in a dispersion solution of the modified zirconia fine particles.

The invention discloses preparation of an antimony pentoxide/silicon dioxide/carbon cloth flexible material and an application thereof as a negative electrode of a sodium-ion battery, which comprisesthe following steps: grinding silicon dioxide, adding the silicon dioxide into deionized water for dissolution to obtain a solution A; adding antimony trichloride into the ethanol solution for dissolution to obtain an antimony trichloride solution, and adding a sodium hydroxide aqueous solution into the antimony trichloride solution to adjust the pH value of the antimony trichloride solution to obtain a solution B; adding the solution A into the solution B and stirring to obtain a solution C; impregnating the activated carbon cloth in the solution C, transferring the solution C and the carboncloth into a reaction kettle for hydrothermal reaction, cooling the carbon cloth to room temperature, moving out the carbon cloth, and cleaning and drying the carbon cloth to obtain the antimony pentoxide/silicon dioxide/carbon cloth flexible sodium ion battery negative electrode material. The method is simple to operate and low in cost, and the silicon material can be applied to the negative electrode material of the sodium-ion battery.

Provided is a method of producing a glass, including, in order to obtain an excellent refining effect: preparing a raw glass batch including: an antimony compound containing pentavalent antimony; and an oxidizing agent (a cerium oxide, a sulfate, a nitrate); and melting the raw glass batch. In preparing the raw glass batch, it is preferable that the antimony compound be premixed with the oxidizing agent. When the nitrate is used as the oxidizing agent, the raw glass batch is prepared so as to include the antimony compound in an amount of more than 0.5 parts by mass and at most 3 parts by mass, in terms of an amount of antimony pentoxide, per 100 parts by mass of a base glass composition expressed in terms of an amount of an oxide.

The invention relates to colloidal antimony oxide powder low in volatility at high temperature and a preparing method thereof. The colloidal antimony oxide powder is made by 1, performing reduction, to be specific, adjusting pH value of antimony pentoxide hydrosol to 7.0 to 8.0 via alkali metal hydroxide, and adding reducing agent to allow partial reduction to obtain antimony oxide sol; 2, removing alkali metal ions, to be specific, removing the alkali metal ions in the antimony oxide sol by ion exchange; 3, performing drying, to be specific, drying the antimony oxide sol with the alkali metal ions removed, to obtain the colloidal antimony oxide powder low in volatility at high temperature. The colloidal antimony oxide powder has lower crystal water content than common colloidal antimony pentoxide powder, the high-temperature burning loss rate of the colloidal antimony pentoxide powder made by the conventional methods is decreased from 16% to 6% below, and high-temperature heating performance is excellent; when heated to 400 DEG C, the colloidal antimony oxide powder never carbonizes or blackens and has stable white appearance; the preparation process is easy to control and has no three wastes.

The invention discloses an antimony carbon negative electrode material of a sodium ion battery, a preparation therefor and an application method thereof, and relates to the technical field of sodium ion battery negative electrode materials. The preparation method comprises the following steps: dissolving a carbon source in a methanol solution, adding nano antimony pentoxide colloidal solution, anduniformly stirring; spray drying at a high temperature and collecting powder to obtain a precursor material; and performing high-temperature calcination on the precursor material in a 5% of mixture of argon and hydrogen to obtain a carbon layer coated antimony carbon negative electrode material. The preparation method of the antimony negative electrode material of a sodium ion battery is simple,rapid and safe, and meets a requirement of green synthesis. Electrochemical test shows that the new carbon layer coated antimony carbon negative electrode material can effectively alleviate the problem of volume of the electrode material getting bigger during a charging and discharging process of the battery, so that the sodium ion battery can maintain a high specific capacity. In particular, theantimony negative electrode material is extremely useful for sodium ion batteries. According to the antimony carbon negative electrode material of a sodium ion battery, the preparation therefor and the application method thereof, a solid technical material basis for developing an energy storage battery system with abundant resources and low cost, and high capacity and high stability is provided.

The invention relates to the field of paint compositions and particularly relates to electric heating paint. The electric heating paint is prepared from the following raw materials in percentage by weight: 40-60% of metal oxides, 5-2% of nonmetal oxides, 5-20% of organic semiconductor materials and 5-20% of high-molecular polymer; the metal oxides consist of the following raw materials in percentage by weight: 20-40% of tin dioxide, 5-20% of antimony pentoxide, 5-10% of cobaltosic oxide, 5-35% of aluminium oxide, 5-15% of zinc oxide, 5-10% of barium oxide, 5-10% of yttrium oxide, 0-20% of zirconium oxide and 5-10% of lithium oxide; the nonmetal oxides consist of the following raw materials in percentage by weight: 10-30% of boron oxide, 30-50% of silicon dioxide and 20-40% of tellurium dioxide; the organic semiconductor materials consist of the following raw materials in percentage by weight: 10-90% of polyaniline and 10-90% of polypyrrole; and the high-molecular polymer consists of the following raw materials in percentage by weight: 10-90% of poly(propionitrile) and 10-90% of polyamide.

The invention provides a process for preparing antimony pentoxide ethanol dispersion which can be used as special flame retardant, catalyst and surface processing agent, comprising the steps of, dissolving organic acid and dispersion stabilizer into water, charging antimony trioxide, mixing for dispersion, oxidizing antimony trioxide into antimony pentoxide by hydrogen dioxide, carrying out concentration, ageing and concentration to the reaction liquid for producing antimony pentoxide content of over 50%, whose grain size is between 1-20 nm, viscosity is less than 10mPaS, pH=6.0-7.0.

The invention discloses a high-transparency organosilicon heat-conduction pouring sealant for electronic products. The pouring sealant is prepared from a component A and a component B, wherein the component A comprises raw materials in parts by weight as follows: 100 parts of vinyl silicone oil, 8-12 parts of hydrogen-containing silicone oil, 20-40 parts of liquid coumarone-indene resin, 0.3-0.6 parts of 1-methyl-1-butynol, 30-50 parts of inorganic and transparent heat-conduction modified filler, 0.5-1.5 parts of antimony pentoxide and 0.5-1.5 parts of a silane coupling agent; the component Bcomprises raw materials in parts by weight as follows: 15-25 parts of vinyl silicone oil and 0.5-1 part of a platinum catalyst. The pouring sealant is applicable to electronic product machining such as transparent heat-insulation and heat-condition encapsulation of electronic products such as power modules, high-frequency transformers, connectors, sensors, electric heating parts, circuit boards and the like; the pouring sealant has good heat conductivity, transparency and flame retardance, is in a soft rubber form after being cured, is good in impact resistance and high in adhesion force and has excellent insulating, shockproof, dampproof, corona-resistant, electric-leakage-resistant and chemical-media-resistant properties.

The invention provides a zero point self adjustment and calibration method for a catalytic gas sensor. A nano-semiconductor tin dioxide, antimony pentoxide and cerium oxide composite sensitive material is prepared by a chemical coprecipitation method; the sensitive material is formed by aging, solid-liquid separation by centrifugation, deionizing washing, dehydration by organic solvents, vacuum drying, and heat treatment; and the sensitive material is prepared into slurry by glycerin. By coiling technology, a coil with a diameter of 0.2 mm is coiled by a wire with a diameter of 0.018 mm, and is suspendedly welded on a standard two-feet socket. The sensitive slurry is coated on the coil; the coil is heated by ohmic heating to allow the slurry to be burned into a small ball with certain strength; a shell with holes is sealed on the socket by capacitor discharge welding; and a gas sensitive element with a full scale being less than the volume fraction of 10*10-6v/V for liquefied petroleum gas (natural liquefied gas, hydrogen, organic gas) is produced. The gas sensitive element is integrated with the catalytic gas sensor; with the characteristic that the lowest detection limit of the catalytic gas sensor (a volume fraction of 50*10-6 v/V) is much higher than the full scale of the gas sensitive element, when the detection limit of the gas sensitive element is lower than the full scale, the concentration of ambient detected gas is considered to be nearly zero, and the zero point of the sensor is adjusted by a one-chip microcomputer of a conditioning circuit of the catalytic gas sensor; therefore the function of zero point self adjustment and calibration of the catalytic gas sensor is realized; the invention solves the problem of zero point drift during long-term use of the catalytic gas sensor, realizes the self adjustment and calibration function of the self adjustment and calibration, prolongs the alignment calibration period of the self adjustment and calibration.

The invention relates to a manufacturing method of white acrylic conductive fiber. The method comprises the following processing steps: (1) drying polyacrylonitrile powder, titanium dioxide, tin dioxide and antimony pentoxide; (2) mixing the titanium dioxide, the tin dioxide, the antimony pentoxide, a coupling reagent, a dispersing agent and the polyacrylonitrile powder to obtain a mixture; (3) mixing the mixture obtained in the step (2) and dimethyl formamide (DMF) in a stirring tank to obtain spinning mixed liquid; (4) carrying out pressurization on the spinning mixed liquid to enable the spinning mixed liquid to be pressed into a spinning kettle from the stirring tank through an intermediate filtering device, adding negative pressure for the spinning mixed liquid in the spinning kettle, and defoaming; (5) carrying out pressurization on the spinning kettle, spinning the spinning mixed liquid by a spinning nozzle, enabling the product to pass through coagulating bath for three times, a stretching device, a drying roller and a winding roller, and finally drying by a drying oven to obtain the white acrylic conductive fiber. The acrylic conductive fiber is good in conductivity (with the volume resistivity of 105-109 omega cm) and light in color, so that the application scope of the acrylic conductive fiber is expanded.

The invention discloses a preparation method of poly-antimonic acid ion exchanger. The method of the invention includes the following steps: 1) antimony trioxide oxidation: antimony trioxide is oxygenated under the presence of oxidants and prepares hydrated antimony pentoxide sol; 2) Oxide aging: aging the prepared hydrated antimony pentoxide sol 1- 30 days under constant temperature of 0 ~ 70 degreeC; 3) drying and exploring in order to form particles: drying the aged hydrated antimony pentoxide sol to poly-antimonic acid solid, putting it into thin nitric acid solution to explore particles and prepares poly-antimonic acid ion exchanger. The invention method has the following advantages: 1. mild preparation conditions and short reaction time; 2. simple installations, low requirements to equipment and easy operation process; 3. preparation process avoids the touch of toxic chemicals; 4. low-cost preparation process, less art operating cost and good adsorption properties of ion exchanger; 5. high selective adsorption capacity of the prepared poly-antimonic acid inorganic ion exchanger to Sr2+.

The invention relates to the technical field of engineering plastics, in particular to a flame-retardant PET heat-conducting material for a heater and a preparation method thereof. The flame-retardant PET heat-conducting material for a heater consists of the following raw materials in parts by weight: 65-75 parts of PET, 15-75 parts of PBT 20 parts, 0.4-0.6 parts of talcum powder, 15-18 parts of zinc oxide, 3-6 parts of magnesium oxide, 8-10 parts of nano-boron nitride, 2-4 parts of nano-silica, 2-4 parts of hollow glass microspheres , 3‑6 parts of titanate coupling agent, 1.5‑2.5 parts of calcium stearate, 1‑2 parts of dioctyl phthalate, 3‑5 parts of colloidal antimony pentoxide, 4‑5 parts of silicone flame retardant 7 parts, 2-3 parts of polytetrafluoroethylene, 3-6 parts of stabilizer, the main steps of the preparation method of the flame-retardant PET heat-conducting material for the heater include weighing and drying, modification treatment, premixing, extrusion granulation, The flame-retardant PET heat-conducting material for heaters in the present invention has excellent thermal conductivity, good insulation, and good flame retardancy and mechanical properties, making its use in heaters safer and more reliable.

The invention discloses a preparation method of a tantalum-doped hydrated antimony pentoxide adsorbing material. The preparation method is characterized by comprising the following steps: preparing 15-18 parts of an SbCl5 hydrochloric acid solution of which the concentration is 0.7-0.8mol/L, adding the SbCl5 hydrochloric acid solution into a polytetrafluoroethylene reaction kettle, adding 0-18 parts of redistilled water, and stirring and mixing; adding 0-18 parts of a TaCl5 ethanol solution of which the concentration is 0.09-0.11mol/L into the solution so as to regulate the molar ratio of Ta to Sb in the solution to be 0-0.18, and stirring and adequately mixing the two solutions; adding 19-21 parts of ammonia water of which the concentration is 8mol/L into the solution, regulating the pH value of the solution to be 1-2, and stirring for 0.5-1 hour; sealing the polytetrafluoroethylene reaction kettle, putting the polytetrafluoroethylene reaction kettle into a programmable drying oven, respectively setting the warming and cooling velocities to be 1 DEG C per minute, carrying out hydro-thermal treatment for 24-48 hours at 160-180 DEG C, taking out the reaction kettle and cooling to the room temperature after the reaction is finished, respectively washing reaction products to be neutral by virtue of distilled water, putting the reaction products into a freezer dryer, and carrying out freeze drying at -40 DEG C, so as to obtain the tantalum-doped hydrated antimony pentoxide adsorbing material.