16 results about "Aluminum Acetate" patented technology

The invention discloses a carbon-coated ferric sodium pyrophosphate positive electrode material and a preparation method, the carbon-coated ferric sodium pyrophosphate positive electrode material comprises a Na source, a Fe source, aluminum acetate and a P. The carbon-coated ferric sodium pyrophosphate prepared by the invention is used as the positive electrode material of a sodium ion battery, the electric conductivity of the battery is obviously improved, the discharge capacity is obviously improved, and the service life of the battery is prolonged. The rate capability and the low-temperature performance of the battery are greatly improved, the gel enables the material to form a layer of three-dimensional carbon conductive network during sintering, the layer of three-dimensional carbon conductive network improves the conductivity of the material, the in-situ coated carbon layer well inhibits the growth of primary particles, the transmission distance of sodium ions is reduced, and the performance of the battery is improved. The secondary carbon coating is characterized in that a small amount of uniform fluidized bed vapor deposition (CVD) is carried out on the basis of the primary carbon coating, the surface of the material is coated with a layer of nanoscale conductive carbon film again, relatively good temperature treatment is adopted, and the graphitization degree of the coated carbon layer is high, so that the electronic conductivity of the material is improved.

The invention relates to Al2O3 / C powder as well as a preparation method and application thereof, and belongs to the field of ceramic powder preparation. The invention relates to a preparation method of Al2O3 / C powder, which comprises the following steps: by taking aluminum acetate as a raw material, acrylamide as an organic monomer, N, N '-methylenebisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, forming polymer gel with a three-dimensional network structure through a sol-gel method, and drying to obtain dry gel powder; and pyrolyzing the dry gel powder in nitrogen to obtain Al2O3 / C powder with a porous structure characteristic. According to the invention, acrylamide is utilized to form gel with a three-dimensional network structure, Al < 3 + > is trapped in pores of the gel structure, so that an aluminum source and a carbon source are uniformly distributed on a molecular level, and growth of Al2O3 particles is effectively inhibited by utilizing an isolation effect of C and combining a rapid heating process, so that the diffusion distance of a substance for forming AlN is greatly shortened, and the preparation process is simplified. According to the method, rapid formation of AlN is promoted, the reaction time is effectively shortened, the efficiency is improved, and the obtained pure-phase AlN powder is small in particle size.

The invention relates to a Pd / F-Al2O3 catalyst with strong metal-carrier interaction and a preparation method and application thereof in the technical field of selective catalytic reduction, a catalytic material comprises an active component and a carrier material, the active component is Pd, the carrier material is F-Al2O3 rich in F center and AlV center, and the mass fraction of the active component is 0.5 wt.%. A carrier F-Al2O3 is prepared through high-temperature treatment of basic aluminum acetate in an argon atmosphere, Pd active components are loaded on the surface of the carrier by adopting an initial wet impregnation method, and the efficient catalytic material for nitrous oxide-ammonia gas selective catalytic reduction reaction is finally prepared after centrifugation, drying and calcination in an air atmosphere. The prepared catalytic material has the advantages of being high in metal-carrier interaction, good in active component dispersity and simple in preparation process, the T90 temperature required by the catalytic efficiency reaching 90% is reduced by 30% compared with that of a traditional Pd / Al2O3 catalyst, the wide industrial application prospect is achieved, and upgrading and optimization of the nitrogen oxide pollution control technology are promoted.

The present invention provides a kind of fine washing phosphorus-free degreasing powder for aluminum-iron-zinc co-trough, and is made up of the following ingredients by weight percentage: lithium tartrate 10-13%, lithium salicylate 13-15%, lithium laurate 10-13%, aluminum acrylate 5-8%, aluminum acetate 15-20%, 2-phenoxy-2-phenylethanol 10-12%, cocamidopropyl betaine 8-10%, dodecyl betaine 8-10%, and surplus is sodium bicarbonate.The fine washing phosphorus-free degreasing powder of the present invention cleans materials such as aluminum-iron-zinc by ultrasonic or drum mode, and after cleaning, the dyne pen test of aluminum-iron-zinc surface is all greater than 44mN / m, and aluminum-zinc material is bright white as new, without excessive corrosion phenomenon, and has good performance matching with coating.

A polyester resin, such as polyethylene terephthalate and a copolymer thereof, that is produced by using a polymerization catalyst containing an aluminum compound, such as an aluminum acetate, and a phosphorus compound, such as a 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid dialkyl ester, that can reduce a catalyst cost, for which polymerization activity is high, and in which there is less catalyst-derived foreign matter. The polyester resin contains an aluminum compound and a phosphorus compound used as a catalyst, and the amount of aluminum atom contained in the polyester resin is 9 to 20 ppm, the amount of phosphorus atom contained in the polyester resin is 13 to 31 ppm, a mole ratio of the phosphorus atom to the aluminum atom in the polyester resin is 1.32 to 1.80.

An asbestos free friction material composition and associated brake pad for vehicles including inorganic and / or organic and / or metallic fibers, at least a binder, at least a friction modifier or lubricant, at least a filler or abrasive and at least a soluble salt of barium and / or calcium and / or aluminum and / or silver with percentage between 0.5-10% by weight. Among them barium carbonate, calcium hydroxide, aluminum triacetate and silver acetate are preferably.

The application discloses application of basic aluminum acetate in fluorine removal in water treatment and relates to a new use of the basic aluminum acetate, which is used for fluorine removal in water and wastewater treatment and has a good removal effect. The application solves the shortcomings of other adsorbents, such as complex preparation process, low adsorption capacity, involvement of organic aluminum and high-molecular template reagent, high cost, potential toxicity, slow initial adsorption speed and the like, thereby saving a large amount of time and energy consumption, not being affected by the existing product characteristics and achieving unexpected technical effects. In addition, the current widely used defluorination adsorbent active alumina has the problems of small specific surface area, low adsorption capacity, a theoretical maximum adsorption capacity usually lower than 10 mg / g, narrow application range, poor recyclability, high treatment cost and the like. The basic aluminum acetate has the advantages of small dosage, high fluorine removal rate, wide applicable pH range, large maximum adsorption capacity and a high theoretical value of 27.7 mg / g, and has significant technical progress.

The utility model discloses a solar cell string and a solar cell module, the solar cell string comprises a plurality of back contact solar cells and linear conductive interconnecting pieces for conductively connecting the adjacent back contact solar cells in series, the back surface of each back contact solar cell is provided with a first electrode and a second electrode, and one end, close to the first electrode, of the second electrode is covered with an insulating layer. The end, close to the second electrode, of the first electrode is covered with an insulating layer, the linear conductive interconnection piece comprises an aluminum core, the first electrode is conductively connected with the linear conductive interconnection piece through a conductive connecting layer, and the second electrode is conductively connected with the linear conductive interconnection piece through a conductive connecting layer. The production cost is reduced due to the metal aluminum, and a layer of aluminum oxide film can be formed on the surface of the linear conductive interconnection piece made of the aluminum alloy in a low-oxygen environment. When the aluminum oxide reacts with the hydrolysis product acetic acid in the packaging material, aluminum acetate which is insoluble in water and can absorb water can be generated, so that the reliability of the product is improved.

The invention discloses an anisotropic conductive adhesive film as well as a preparation method and application thereof. The anisotropic conductive adhesive film is prepared from the following raw materials in parts by mass: 25 to 30 parts of polymer matrix; 0.1 to 1 part of crop fiber; 2-3 parts of a conductive filler; 20-40 parts of an insulating filler; 0.0001 to 0.0005 part of a cross-linking agent; the addition amount of aluminum acetate in the Al < 3 + > emulsion is 1-2 parts. The macroscopic reinforced structure of reinforced concrete and the microcosmic coordination bonding mechanism of mussel byssus are combined for the first time and used for designing the anisotropic conductive adhesive film, and long-term stability of a conductive / insulating structure is achieved. The anisotropic conductive adhesive film prepared by the invention not only has remarkable anisotropic conductivity (low resistance (about 1 ohm) in the vertical direction and high resistance (about 1.2 * 10 < 8 > ohm) in the horizontal direction), but also has high tensile strength (-5.2 MPa), high elongation at break (-354%), high stripping force (-900 gf / mm) and good low temperature resistance and self-repairing capability.

An asbestos-free friction material composition and related brake pads for vehicles, comprising organic and / or inorganic and / or metallic fibers, at least a binder, at least a friction modifier or lubricant, at least a filler or abrasive, and at least soluble salts of barium and / or calcium and / or aluminum and / or silver in a proportion of between 0.5 and 10% by weight, of which barium carbonate, calcium hydroxide, aluminum triacetate, and silver acetate are preferred.

Disclosed is a method for producing aluminum hydroxide including a) heating a solution of aluminum hydroxide and organocarboxylic acid, b) filtering the solution to remove insoluble impurities, c) refluxing the filtered solution to form the AOM, d) isolating any produced solid by filtration of supernatant, e) removing unreacted organocarboxylic acid by washing with a solvent, f) removing the solvent from step e) thereby isolating the AOM, g) heating the isolated AOM from step f) whereby aluminum oxide is formed, and h) cooling the aluminum oxide from step g). Also disclosed is a method of producing deuterium gas including reacting a solution of heavy water and aqueous sodium deuteroxide with aluminum, whereby deuterium gas and aluminum deuteroxide are produced.

The invention relates to a semi-coated aluminum positive electrode material, a preparation method thereof and a lithium ion battery, and the preparation method comprises the following steps: mixing a positive electrode material and aluminum acetate, then carrying out heating treatment in an oxygen-containing atmosphere, and cooling to obtain the semi-coated aluminum positive electrode material, the temperature of the heating treatment is 350 DEG C to 450 DEG C. The low atom mobility of aluminum acetate at 350-450 DEG C is utilized, so that aluminum oxide is scattered and densely distributed on the surface of the positive electrode material to achieve a semi-coating effect, and the thickness of an obtained coating layer can reach 100-200 nm. Therefore, compared with a fully-coated aluminum oxide coating, the semi-coated aluminum oxide coating can enable the surface of the positive electrode material to be partially exposed and is beneficial to reducing impedance, so that the energy density and the cycle performance of the lithium ion battery are improved; in addition, the thick aluminum oxide coating is closer to the electrolyte, so that the corrosion of fluoride in the electrolyte can be effectively resisted for a long time, and the stability of the positive electrode material is enhanced.

Method for manufacturing elements for electrical working machines, which are formed with superimposed layers (1) of iron or an iron alloy with soft magnetic properties and in which an electrically insulating layer (2) is arranged between each of the layers (2) formed with iron or with the iron alloy, wherein the layers (1) of iron or the iron alloy each with a suspension formed with iron or with a powder of the iron alloy and an organic binder are formed by screen printing in a predetermined geometry with a predetermined first layer thickness and the electrically insulating layers (2) formed between the layers (1) of iron or the iron alloy formed by screen printing, which are formed with a powder and an organic binder, are formed by screen printing in the specified geometry with a specified second layer thickness, wherein the powder is a hydroxide or acetate selected from magnesium hydroxide, aluminum hydroxide, zirconium hydroxide, magnesium acetate, aluminum acetate and zirconium acetate or a carbonate selected from magnesium carbonate and zirconium carbonate and Following screen printing, the resulting layer stack undergoes a thermal treatment, during which In a first stage, debinding takes place in the temperature range between 100 °C and 800 °C, whereby the respective hydroxide, acetate and / or carbonate is decomposed in the temperature range between 100 °C and 300 °C, and a chemical reaction is carried out in which the respective hydroxide, acetate and / or carbonate is formed into the respective metal oxide with a fine particle size distribution of < 1 µm, and following the first stage, a second stage of thermal treatment is carried out, in which in a reducing atmosphere at a temperature in the range of 1200°C to 1350°C, sintering of the iron or the respective iron alloy is carried out to form layers (1) with corresponding soft magnetic properties and porous electrically insulating layers (2) are obtained.

Provided is a polishing method comprising a polishing step for using a slurry to polish a resin part of a member to be polished, which has the resin part containing a resin material, wherein: the slurry contains abrasive grains having silicon oxide particles and an aluminum component present on the surface of the silicon oxide particles; and the aluminum component includes at least one compound selected from the group consisting of aluminum acetate, aluminum chloride, and derivatives thereof. Also provided is a slurry for polishing a resin part of a member to be polished, which has the resin part containing a resin material, the slurry containing abrasive grains having silicon oxide particles and an aluminum component present on the surface of the silicon oxide particles, wherein the aluminum component includes at least one compound selected from the group consisting of aluminum acetate, aluminum chloride, and derivatives thereof.

The invention relates to the technical field of aerogel materials, in particular to a packaged aerogel composite material and a preparation method thereof, and the preparation method comprises the following steps: (1) loading boric acid into a fiber aerogel composite material to obtain a boron-dry blank, and then dipping aluminum acetate in the boron-dry blank to obtain a modified blank; or, aluminum acetate is soaked into the fiber aerogel composite material to obtain an aluminum-dry blank, and then boric acid is loaded in the aluminum-dry blank to obtain a modified blank; (2) roasting the modified blank to obtain modified aerogel; and (3) coating the modified aerogel with a binder, and then wrapping the modified aerogel with an inorganic packaging film for curing to obtain the packaged aerogel composite material. The packaging aerogel composite material is not prone to powder falling at high temperature, good in heat insulation performance and especially suitable for the field of heat insulation of aerospace.

Disclosed is a method for producing aluminum hydroxide including a) heating a solution of aluminum hydroxide and organocarboxylic acid, b) filtering the solution to remove insoluble impurities, c) refluxing the filtered solution to form the AOM, d) isolating any produced solid by filtration of supernatant, e) removing unreacted organocarboxylic acid by washing with a solvent, f) removing the solvent from step e) thereby isolating the AOM, g) heating the isolated AOM from step f) whereby aluminum oxide is formed, and h) cooling the aluminum oxide from step g). Also disclosed is a method of producing deuterium gas including reacting a solution of heavy water and aqueous sodium deuteroxide with aluminum, whereby deuterium gas and aluminum deuteroxide are produced.