36 results about "Aluminum hydrate" patented technology

The invention provides eutectic aqueous aluminum ion battery electrolyte as well as a preparation method and application thereof, and relates to the technical field of aluminum ion batteries. According to the invention, the eutectic aqueous aluminum ion battery electrolyte is prepared by solid-solid mixing and dissolving of aluminum metal salt and eutectic substances; the aluminum metal salt is selected from at least one of aluminum chloride hexahydrate, aluminum perchlorate nonahydrate, aluminum nitrate nonahydrate and aluminum sulfate octadecahydrate; the eutectic substance is an organic small molecule compound containing amino and ester groups. By screening hydrated aluminum metal salt and eutecticevaporate substances and regulating and controlling the proportion, the prepared electrolyte is applied to aqueous aluminum ion batteries, such as symmetrical batteries and total batteries, and shows excellent performance. According to the electrolyte, the stability of the aluminum ion battery can be improved, a solvation structure dominated by anions is formed, and meanwhile, a compact anion-rich solid electrolyte interface layer is formed on the surface of an aluminum negative electrode to protect the aluminum negative electrode. The problem that an existing water-based aluminum ion battery negative electrode is poor in stability is solved.

The invention relates to a recycling method of chemical polishing waste liquid, which comprises the following steps: (1) carrying out first pH regulation treatment on the chemical polishing waste liquid containing phosphate radicals, sulfate radicals, aluminum ions and + 3 valent iron ions to obtain aluminum mud and aluminum-removed liquid; (2) sequentially carrying out second pH regulation treatment, third pH regulation treatment and dealumination treatment on the aluminum mud to obtain a hydrated calcium aluminate product; (3) the aluminum-removed liquid is subjected to phosphorus removal treatment, and first phosphorus mud and phosphorus-removed liquid are obtained; sequentially carrying out fourth pH regulation treatment and first evaporative crystallization treatment on the first phosphorus sludge to obtain a sodium phosphate product; and sequentially carrying out fifth pH regulation treatment and second evaporative crystallization treatment on the dephosphorized liquid to obtain a sodium sulfate product. According to the method disclosed by the invention, phosphorus, sulfur and aluminum in the chemical polishing waste liquid are completely separated by utilizing different solubility of different substances in the solution when the pH value is the same, and a sodium phosphate product, a sodium sulfate product and a hydrated calcium aluminate product are respectively obtained, so that complete recycling of elements in the chemical polishing waste liquid is realized, and no byproduct waste is produced.

A method for making a high alumina hydraulic binder includes hydrating a source of aluminum ions with a source of calcium ions in the presence of water to form a mineral hydrate and then heating the mineral hydrate to form the high alumina hydraulic binder.

The invention discloses a silicon removal agent and application thereof in alkaline vanadium-containing leachate, and the silicon removal agent is obtained through the following steps: taking aluminum-containing silicon removal slag as a raw material, putting the aluminum-containing silicon removal slag into a NaOH solution, continuously stirring, filtering, collecting solids, drying and grinding to obtain the silicon removal agent, wherein the pH (Potential of Hydrogen) value of the NaOH solution is 8.0 to 10.0; the NaOH solution also contains cationic polyacrylamide, and the concentration of the cationic polyacrylamide is 0.1 to 0.3 mg / ml; the stirring temperature is 80 to 95 DEG C, and the temperature is kept for 60 to 120 minutes. Alkaline vanadium-containing leachate obtained through a sodium salt roasting-water leaching process of vanadium-containing raw materials (vanadium slag and the like) is used as a raw material, aluminum salt (aluminum sulfate, sodium metaaluminate and the like) is used as an impurity removal agent, precipitate sodium aluminosilicate hydrate is added, a sodium aluminosilicate porous material is obtained after treatment, and the sodium aluminosilicate porous material can be used as a silicon removal agent and precipitate floc. And removing silicon impurities in the solution under a weakly alkaline condition.

Processes for producing a precipitated aluminum trihydrate (ATH) product from scrap or waste aluminum metal include the steps of contacting the aluminum metal with an activating composition containing gallium and / or indium to form an activated aluminum composition, reacting the activated aluminum composition with water and an ionic salt, a hydroxide, and / or an acid to form hydrogen gas and a first reaction mixture comprising solid ATH and a first solid fraction, isolating the solid ATH and the first solid fraction from the first reaction mixture, contacting the solid ATH and the first solid fraction with an aqueous caustic solution to form a second reaction mixture containing dissolved sodium aluminate, removing a second solid fraction from the second reaction mixture to form a liquor solution, seeding the liquor solution with a seed material to precipitate ATH and form a suspension, isolating precipitated ATH from the suspension and washing the precipitated ATH to form an intermediate ATH product, optionally milling the intermediate ATH product, and drying the intermediate ATH product to form the precipitated ATH product. Concurrently with the production of ATH is the production of molecular hydrogen and significant amounts of heat / energy.

The present invention provides a surface-treated aluminum material that exhibits excellent corrosion resistance to corrosive gases and plasma, and can suppress the occurrence of cracks even when the temperature rises, as well as a method for manufacturing the same and a component for a plasma processing apparatus. [Solution] The surface-treated aluminum material 1 comprises a base material 2 made of aluminum or an aluminum alloy, and a protective film 3 formed on the base material. The protective film 3 consists of an aluminum oxide and comprises a first layer 31 covering the base material 2, and a second layer 32 containing aluminum hydrate oxide and covering the first layer 31. When the aluminum material 1 is subjected to a high-temperature cycle test under specific conditions, the number of cracks formed in the protective film 3 per unit area is A. HC It is within a specific range.

Processes for preparing high-purity aluminum oxide include providing an aluminum feedstock, reacting the aluminum feedstock with one or more acids to form a hydrated aluminum salt solution, and calcining the hydrated aluminum salt to form an aluminum oxide powder. Other processes for preparing high-purity aluminum oxide include providing an aluminum feedstock and reacting it with one or more acids to form a first hydrated aluminum salt solution, precipitating hydrated aluminum salt from the first hydrated aluminum salt solution to produce a mixture of precipitated hydrated aluminum salt crystals and a mother liquor, separating precipitated hydrated aluminum salt crystals from the mother liquor, dissolving the hydrated aluminum salt crystals in a solvent to form a second hydrated aluminum salt solution, and calcining hydrated aluminum salt of the second hydrated aluminum salt solution to form an aluminum oxide powder. Also described herein are various furnaces for preparing high-purity aluminum oxide.

An aluminium hydroxide hydrogel for agriculture is provided. The aluminium hydroxide hydrogel includes aluminium polyhydrate and water.

The present invention provides: a metal organic structure which includes an amorphous phase and has gas adsorption / desorption hysteresis ability; and a production method for preparing the metal organic structure by aqueous synthesis. This metal organic structure is composed of a metal hydrate and an organic ligand that can be bidentately coordinated with the metal hydrate, the metal organic structure being characterized in that the metal hydrate is either a zirconium hydrate, an aluminum hydrate, or a zinc hydrate, and that the metal organic structure includes an amorphous phase, and also has gas adsorption / desorption hysteresis ability.

A method for the manufacture of a high alumina hydraulic binder comprising hydrating a source of aluminium ions with a source of calcium ions in the presence of water to form mineral hydrates and subsequently heating said mineral hydrates to form said high alumina hydraulic binder.

A thermally conductive composition may include a polymer matrix; and a multimodal filler composition in the weight percentage (wt%) of the thermally conductive composition in the range of 60 to 95 wt%, comprising a first thermally conductive filler being aluminum trihydrate (ATH) having a D50 particle size in the range of 0.1 [mu] m to 10 [mu] m, a second thermally conductive filler being ATH having a D50 in the range of 10 [mu] m to 100 [mu] m, a third thermally conductive filler being aluminum trihydrate (ATH) having a D50 particle size in the range of 0.1 to 10 [mu] m, and a fourth thermally conductive filler being aluminum trihydrate (ATH) having a D50 particle size in the range of 0.1 to 10 [mu] m. Wherein the first thermally conductive filler and the second thermally conductive filler account for the weight percentage (wt%) of the multimodal filler composition in the range of 40 wt% to 90 wt%; and a third thermally conductive filler which is alumina having a D50 in the range of from 5 [mu] m to 100 [mu] m, in a weight percentage of from 10% to 60% by weight.

The present invention relates to a thermoplastic coating for medium-voltage cables, specifically designed to improve both their sliding properties and fire resistance. This innovative coating solution addresses the technical problem of fire spread in the event of ignition near or on the cable, while minimizing the time and effort required for cable installation. The invention utilizes a unique formulation of PVC compounds, incorporating non-halogenated alkyl aryl flame-retardant plasticizers, along with a combination of flame retardants such as magnesium hydroxide (MDH), aluminum trihydrate (ATH), and sepiolite-based flame retardants. Additionally, high-energy light stabilizers (HALS) are included to protect the cable from degradation over time. The overall result is a coating that provides effective fire resistance, reduces friction, and significantly simplifies installation. The system works by preventing the spread of fire and ensuring that cables can be easily inserted into electrical conduits, even in challenging environments.

The invention provides a hydrated calcium aluminate phosphorus adsorption material with high adsorption performance and a preparation method thereof, and belongs to the technical field of adsorption materials. A preparation method of a hydrated calcium aluminate phosphorus adsorption material with high adsorption performance comprises the following steps: providing calcium carbonate and aluminum oxide, uniformly mixing the calcium carbonate and the aluminum oxide according to a molar ratio of 1: 1, calcining, cooling and grinding to obtain a powder material; mixing the powder material with carbon dioxide-free ultrapure water, oscillating, separating out a solid material, drying, and grinding to obtain hydrated calcium aluminate powder; the hydrated calcium aluminate powder is subjected to thermal modification, the thermal modification temperature is 120-600 DEG C, heat preservation is conducted for 1-2 h, natural cooling is conducted, and a product is obtained. The material prepared by the invention has remarkable phosphorus adsorption capacity and adsorption rate, and can be used for adsorbing and recycling phosphorus in phosphorus-containing wastewater.

Processes for producing a precipitated aluminum trihydrate (ATH) product from scrap or waste aluminum metal include the steps of contacting the aluminum metal with an aqueous caustic solution to form hydrogen (H2) gas and a reaction mixture containing dissolved sodium aluminate, removing a solid fraction from the reaction mixture to form a liquor solution, seeding the liquor solution with a seed material to precipitate ATH and form a suspension, isolating solid ATH from the suspension and washing the solid ATH to form an intermediate ATH product, optionally milling the intermediate ATH product, and drying the intermediate ATH product to form the precipitated ATH product. Concurrently with the production of ATH is the production of molecular hydrogen and significant amounts of heat / energy.

The present disclosure provides a battery pack container assembly containing a reagent mixture. A battery pack assembly includes a container assembly containing a reagent mixture. The container assembly is configured to release the reagent mixture in response to a thermal event proximate the container assembly. The reagent mixture may include sodium silicate particles, one or more ceramic-based beads, alumina microparticles, melamine poly (zinc phosphate), and aluminum trihydrate.

The invention discloses application of a lauryl amine intercalation alpha-phase zirconium phosphate nanosheet, and belongs to the technical field of functional material preparation. Alpha-phase zirconium phosphate nanosheets are synthesized by using zirconium aluminum oxide octahydrate, phosphoric acid and hydrogen fluoride as raw materials through a direct precipitation method, and the alpha-phase zirconium phosphate nanosheets are intercalated by using lauryl amine; and dispensing the dispersion liquid of the product on an interdigital electrode to obtain the corresponding humidity sensor. Compared with a pure alpha-phase zirconium phosphate nanosheet, the alpha-phase zirconium phosphate nanosheet has the advantages that the property response value is increased from-38% to-79.9%, and the response is increased by about 2.1 times. The humidity sensor based on the dodecylamine intercalation alpha-phase zirconium phosphate nanosheet is excellent in response linearity, and the determination coefficient reaches 0.988.

A combined cycle energy harvesting device and aluminum smelter system. The energy harvesting device consumes an aluminum anode to produce aluminum hydrate. The aluminum smelter converts the aluminum hydrate to an aluminum anode for re-use by the energy harvesting device.

The present invention relates to a thermoplastic coating for medium-voltage cables, specifically designed to improve both their sliding properties and fire resistance. This innovative coating solution addresses the technical problem of fire spread in the event of ignition near or on the cable, while minimizing the time and effort required for cable installation. The invention utilizes a unique formulation of PVC compounds, incorporating non-halogenated alkyl aryl flame-retardant plasticizers, along with a combination of flame retardants such as magnesium hydroxide (MDH), aluminum trihydrate (ATH), and sepiolite-based flame retardants. Additionally, high-energy light stabilizers (HALS) are included to protect the cable from degradation over time. The overall result is a coating that provides effective fire resistance, reduces friction, and significantly simplifies installation. The system works by preventing the spread of fire and ensuring that cables can be easily inserted into electrical conduits, even in challenging environments.

The present disclosure relates to a reflective particulate composition comprising: a reflective pigment material comprising kaolin clay; aluminum trihydrate (ATH); and a hardening additive. The present disclosure also relates to a building material comprising the reflective particulate composition. The present disclosure also relates to a method of making the reflective particulate composition.

Compositions for a cable include a thermoplastic component, an aromatic polycarbodiimide, and a flame retardant system. The flame retardant system is selected from one of the following: (i) melamine polyphosphate and aluminum diethyl phosphinate; and (ii) a melamine cyanurate component, and, optionally aluminum trihydrate. The thermoplastic component may be a polyether block amide or a copolyester thermoplastic elastomer. In aspects of the disclosure, a composition comprises a copolyester thermoplastic elastomer, an aromatic polycarbodiimide, and a flame retardant system. The flame retardant system may be selected from one of the following: (i) melamine polyphosphate and aluminum diethyl phosphinate; and (ii) melamine cyanurate and optionally aluminum trihydrate. An electric vehicle charging cable may include two or more conductors and an outer jacket at least partially surrounding the two or more conductor and being made from the compositions disclosed herein.

In the present disclosure, a manufacturing method of an engineered stone is provided. A raw material is provided, wherein the raw material includes 45.5-80% by weight of glass particle, 15.2-47% by weight of aluminium trihydrate (ATH), 6.5-18% by weight of resin, 0.07-0.28% by weight of curing agent, and 0.05-0.3% by weight of coupling agent. The raw material is mixed and stirred to form a stone intermediate. The stone intermediate is arranged in a mold, and the mold is removed. The stone intermediate is compressed under high pressure and vacuum to form a condensed stone intermediate, wherein the air in the stone intermediate is released. The condensed stone intermediate is cured at elevated temperature to form the engineered stone.

An anti-reflective glass comprises, in sequence, a glass substrate, an anti-reflective film, and a protective layer. The anti-reflective film, starting from the glass substrate side, is constructed in the following order: a low-to-medium refractive index layer with a refractive index of 1.36–1.45 and a thickness of 150–210 nm; a medium refractive index layer with a refractive index of 1.56–1.79 and a thickness of 90–140 nm; a high refractive index layer with a refractive index of 1.75–1.87 and a thickness of 30–50 nm; and a low refractive index layer with a refractive index of 1.27–1.35 and a thickness of 70–75 nm. The high refractive index layer has a higher refractive index than the medium refractive index layer. The refractive index of the aforementioned protective layer is 1.43 to 1.48, and the layer thickness is 20 to 30 nm. The aforementioned high refractive index layer, low refractive index layer, and protective layer contain (A) aluminum hydrate. The average light reflectance of both sides at wavelengths of 380 to 780 nm is less than 0.6%, and the average light transmittance at wavelengths of 380 to 780 nm is more than 98%. This anti-reflective glass has high anti-reflective performance, excellent alkali resistance, and is suitable for the manufacture of anti-reflective tempered glass.

The application provides a eutectic aqueous aluminum ion battery electrolyte and a preparation method and application thereof, and relates to the technical field of aluminum ion batteries.The eutectic aqueous aluminum ion battery electrolyte is prepared by solid-solid mixing of aluminum metal salt and eutectic substance; the aluminum metal salt is selected from at least one of aluminum chloride hexahydrate, aluminum perchlorate nonahydrate, aluminum nitrate nonahydrate and aluminum sulfate octadecahydrate; and the eutectic substance is an organic small-molecule compound containing amino and ester groups. By screening and proportion control of the hydrated aluminum metal salt and the eutectic substance, the prepared electrolyte is applied to an aqueous aluminum ion battery, such as a symmetrical battery and a full battery, and excellent performance is exhibited. The electrolyte can improve the stability of the aluminum ion battery, form an anion-dominated solvation structure, and at the same time, form a dense anion-rich solid electrolyte interface layer on the surface of the aluminum negative electrode to protect the aluminum metal negative electrode. The problem of poor negative electrode stability of the existing aqueous aluminum ion battery is solved.

The invention provides a method for reducing hydrolysis loss in Bayer process aluminum oxide production, and relates to the technical field of aluminum oxide. The method comprises the following steps: carrying out settling separation on ore pulp to generate crude liquid and red mud slurry, carrying out leaf filtration on the crude liquid, then carrying out seed crystal decomposition, carrying out three-stage countercurrent washing on the red mud slurry, stacking the washed red mud for subsequent treatment, and conveying washing liquid to a mother liquor evaporation process; wherein carbon dioxide is introduced into the underflow of the second-stage countercurrent washing for mild and controllable carbonization, so that silicon in the hydrated sodium aluminosilicate is precipitated into the red mud in a silica gel form, the underflow is subjected to centrifugal separation and then overflows and is sent to a mother liquor evaporation process, and the underflow is sent to a third-stage countercurrent washing process. The red mud slurry is mildly and controllably carbonized through carbon dioxide, so that silicon in the hydrated sodium aluminosilicate is precipitated into the red mud in a silica gel form, and the aluminum recovery rate is increased.

A battery pack assembly comprising a container assembly containing a mixture of active substances. The container assembly is configured to release the mixture of active substances in response to a heat event in the vicinity of the container assembly. The mixture of active substances may include sodium silicate granules, one or more ceramic-based beads, aluminum oxide particles, melamine poly(zinc phosphate), and aluminum trihydrate.

When a top metal cover of a battery module or battery pack is coated with an addition-curable or moisture-curable ceramizable silicone composition on a side of a cover facing the battery module or individual battery cell, the top metal cover is not coated with a ceramizable silicone composition on a side facing the cover of the battery module or individual battery cell. Metal ion battery modules and battery packs for electric vehicles exhibit substantially reduced heat transfer to areas above the battery modules or battery packs, and an addition-curable or moisture-curable ceramizable silicone composition that is sprayable and thixotropic and contains 50-85% by weight of an aluminum trihydrate-containing filler, the amount is such that the aluminum trihydrate is present in an amount of at least 30 wt% based on the weight of the silicone composition.

The invention discloses a low-carbon magnesium-zirconium-carbon upper nozzle brick and a preparation method thereof, and belongs to the technical field of refractory materials. The upper nozzle brick comprises the following components in percentage by weight: 70%-75% of granular aggregate and 25%-30% of co-grinding powder, and the total percentage is 100%. The granular aggregate comprises the following components in percentage by weight: 25-30% of magnesia particles and 70-75% of fused magnesium-zirconium sand; adding 3-4% of phenolic resin; wherein the co-grinding powder is prepared by uniformly mixing 6%-10% of magnesia powder, 5%-8% of fused magnesium-zirconium sand powder, 3%-5% of metal aluminum powder, 5%-8% of 898 graphite and 1%-3% of silicon carbide powder; the surfaces of the fused magnesium-zirconium sand particles are coated with a coating layer, and the coating layer is provided with a coating layer containing hydrated calcium aluminate and alumina gel. The upper nozzle brick prepared by the method can solve the contradictions that the traditional magnesia-carbon material is poor in thermal shock resistance and the alumina-carbon material is not resistant to high alkalinity erosion, and the comprehensive performance and the service life of the product are remarkably improved while the carbon content is reduced.

A process for calcining aluminum trihydrate (Al2O3. 3H2O) to form alumina (Al2O3) employs an electrical energy source instead of at least a portion of a natural gas energy source to generate heat for use in a calcining furnace. The process may include calcining aluminum trihydrate using at least one electrically heated fluidized bed reactor.

The invention belongs to the technical field of inorganic chemical separation and purification, and particularly relates to a method for removing impurities in a sodium silicate solution. The method comprises the following steps: stirring a sodium silicate solution at a certain temperature for a period of time, adding hydrogen peroxide and a catalyst into the sodium silicate solution, generating a colloid structure, and aging; and finally, carrying out solid-liquid separation to obtain the impurity-removed high-purity sodium silicate solution. The catalyst is ferrous sulfate heptahydrate or zinc nitrate, can effectively excite decomposition of hydrogen peroxide to form high reactive oxygen free radicals and promote selective precipitation of aluminum oxide into hydrated sodium aluminosilicate colloid, SiO2 in a sodium silicate solution is kept in a dissolved state, and the precipitation rate is 0 or extremely low. The method has the advantages of mild reaction conditions, rapid gel forming, stable structure and simple process, is suitable for industrial continuous operation, and is especially suitable for precursor purification treatment in the preparation process of a high-purity silicon material.

The present application relates to the field of catalyst, especially to a MOFs catalyst and its preparation method and application.The method comprises: taking an aluminum-based MOF as a carrier, loading noble metal through an impregnation reduction method, and then performing gas phase reduction; wherein the aluminum-based MOF is synthesized by a hydrothermal method with a precursor and an organic ligand as raw materials, the metal precursor is an aluminum salt or a hydrated aluminum salt, and the organic ligand is selected from one or more of square acid, terephthalic acid, 2-fluoroterephthalic acid, diphenic acid, bipyridine, bipyridine dicarboxylic acid, trimesic acid, pyromellitic acid, and mellitic acid; the noble metal includes a Pd salt.The present application can prepare stable aluminum-based MOFs, obtain a strong interaction catalyst of noble metal and aluminum-based MOFs, the MOFs catalyst has stable properties, excellent performance, good morphology, high activity, and good selectivity for double bonds, and the MOFs catalyst can be recovered by centrifugation and reused multiple times.