26results about "Antimony oxides/hydroxides/oxyacids" patented technology

The invention discloses a Ti / IrO2-SnO2-SbO2 gradient active coating anode with low cost and high stability and a preparation process of the Ti / IrO2-SnO2-SbO2 gradient active coating anode. The gradient active coating is characterized in that the gradient active coating is composed of 3-5 layers, the total thickness is 5-15 microns, the thickness of each layer is 1-5 microns, the molar percentage content of iridium in a bottom layer is 0-5%, the sum of the molar percentage content of tin and antimony is 95-100%, the molar percentage content of iridium in a surface layer is 10-20%, the sum of the molar percentage content of tin and antimony is 80-90%, and the thickness of each layer is 1-5 microns. The molar percentage content of iridium from the bottom layer to the surface layer is sequentially increased from 2% to 10%, the molar percentage content of tin and antimony is sequentially reduced from 2% to 10%, and the total iridium loading amount in the gradient active coating is 0.05-0.2 mg / cm < 2 >. The preparation method comprises the three steps of titanium substrate pretreatment, precursor salt alcohol solution preparation and gradient active coating preparation. By adopting a gradient coating mode, the thermal stress between the coating and the titanium substrate in the preparation process is remarkably reduced, the consumption of noble metal is reduced, the oxygen evolution activity of the anode is improved, and the service life of the anode is prolonged. The method is simple to operate and low in cost, and has remarkable industrialization advantages.

The invention discloses a modified solid-state electrolyte and a preparation method and application thereof, and relates to the field of solid-state batteries, in 300 crystal face grain size distribution of the modified solid-state electrolyte, Kn90 = (Ln90-Ln10) / Ln50, and Kn90 is more than or equal to 0.5 and less than or equal to 1.7; wherein Ln10 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 10%, and Ln50 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 50%; ln90 is the corresponding grain size when the volume distribution cumulative percentage of the 300 crystal face sub-grain size Ln of the modified solid electrolyte reaches 90%. According to the invention, the modified solid electrolyte has excellent ionic conductivity, good air stability, interface stability to metal lithium and relatively high oxidation potential stability.

The invention discloses a preparation method and application of a nano heat-insulating metal oxide composite coating. The preparation method comprises the following steps: preparing a nano ATO crystal of which the surface contains silicon hydroxyl; preparing polymerizable ATO (antimony tin oxide) nano particles; and uniformly mixing the polymerizable ATO nano particles, the silane modified nano silicon dioxide, the self-emulsifying polyurethane emulsion and the auxiliary agent to obtain the required coating. Nanometer ATO crystallization and surface silicon hydroxyl modification are synchronously completed in a hydrothermal environment, and the problem of uneven coating caused by traditional two-step modification is solved; after the high-temperature reaction, cold ethanol is used for realizing shock cooling to stop crystal growth, so that the problem of thermodynamic instability of the nanocrystalline is solved; the interfacial compatibility is improved by introducing a vinyl-containing siloxane monomer; by compounding the polymerizable ATO nano particles, the silane modified nano silicon dioxide, the self-emulsifying polyurethane emulsion and the auxiliaries, a stable topological structure connected by covalent bonds is constructed, and the aging resistance, the heat insulation property and the adhesive force of the coating are remarkably improved.

The present application belongs to the field of metallurgy, and relates to a method for producing antimony white by directly oxidizing crude antimony, comprising the following steps: S1, mixing crude antimony with crude antimony alloy, and reacting under an oxygen-containing atmosphere, to obtain oxidized slag and a melt after the reaction is completed; S2, adjusting the temperature of the melt, and then introducing compressed air to react, to produce antimony trioxide-containing flue gas, and to obtain antimony oxide slag after the reaction is completed. The present application makes full use of impurities such as sodium sulfide, sodium hydroxide and sodium thiosulfate contained in crude antimony, and innovatively uses these components for arsenic removal reaction, which not only avoids the cumbersome steps of adding various auxiliary materials in the traditional process, but also enables the original sodium sulfide, sodium hydroxide and sodium thiosulfate in the crude antimony to fully play a synergistic role, showing excellent performance in arsenic removal effect, thus simplifying the process flow, significantly reducing the production cost, and realizing the dual improvement of economic benefit and process efficiency.

The present application relates to the technical field of nano new material preparation, in particular to a kind of antibacterial flame-retardant multifunctional cuprous oxide / sb2o3 nano material and its preparation method.The method of the present application is characterized by using electrostatic adsorption principle, copper oxide is loaded to the surface of sb2o3, and copper atom will partially replace antimony atom, and Cu-O-Sb binding bond is formed by electron transfer, to prepare cuprous oxide / sb2o3 nano material.The cuprous oxide / sb2o3 nano material prepared by the method of the present application has high purity, good dispersibility, stable structure and excellent antibacterial performance, and the detection of escherichia coli and staphylococcus aureus antibacterial rate is all >99%, the flame-retardant effect is remarkable, and the combustion limited oxygen index is increased by about 25%, which can be applied to the fields of textiles, plastic products and coatings, and is suitable for large-scale industrial production and popularization.

The present invention relates to the field of inorganic materials, and specifically to a method for preparing petal-shaped antimony trioxide. The method comprises the following steps: adding an antimony salt to an alcohol solvent, heating the mixture to 40-50°C and stirring the mixture for 30-60 minutes, then adding a morphology control agent and a pH control agent, and finally subjecting the obtained reaction solution to a solvothermal reaction. The precipitate is collected, washed, and dried. The antimony trioxide prepared by the present invention has excellent electrochemical properties, especially good cycle stability. This may be because the special petal-shaped morphology can store more charges and ions, while also providing more transmission channels for the charges and ions, thereby improving the conductivity of the antimony trioxide and slowing down its volume expansion during the charge and discharge process.

The invention provides a lithium cobalt oxide positive electrode material, a preparation method thereof and a lithium ion battery. According to the lithium cobalt oxide positive electrode material, a first coating layer and a second coating layer are sequentially arranged on the surface of a base material, and the first coating layer comprises a Sb2O3-SbFx mixed layer and a Sb < 3 + > and F <-> anion co-doped transition layer which are sequentially arranged from the lithium cobalt oxide base material; the second coating layer comprises a Li1. 3Al0. 3Ti1. 7 (PO4) 3 layer and a Li1. 8Sb0. 8Ti1. 2 (PO4) 3 layer, and an Al2O3 interlayer is arranged between the first coating layer and the second coating layer. And when being used for the lithium ion battery, the lithium ion battery has excellent electrochemical performance and thermal stability, so that the battery still has excellent charge-discharge performance and rate performance in a high-voltage and high-temperature environment, and the requirements of the battery on reliability and performance are met. The invention also provides a preparation method of the lithium cobalt oxide positive electrode material and a lithium ion battery.

A battery cell is provided having a synthetic metal oxide disposed in the anode and / or cathode that is acidic at least on its surface, but not super acidic. [Solution] A battery cell having an anode or cathode comprising an acidified metal oxide ("AMO") material, preferably in the form of monodisperse nanoparticles of 20 nm or less in size, which when suspended in a 5 wt% aqueous solution has a pH of <7 and a Hammett function H0>-12 at least on its surface.

To provide a battery cell which comprises a synthetic metal oxide having acidity except superacidity on at least its surface and arranged within an anode and / or a cathode.SOLUTION: A battery cell has an anode or a cathode, including an acidified metal oxide (AMO) material which has monodisperse nano particle morphology preferably with a size of 20 nm or less, which has a pH level lower than 7 when suspended in a 5-wt% solution, and which has a Hammett function H0 more than -12 on at least its surface.SELECTED DRAWING: Figure 1

The invention discloses a heat-insulating and weather-resistant material, a preparation method and application of the heat-insulating and weather-resistant material to car clothing in the field of polymer composites.The heat-insulating and weather-resistant material comprises a surface layer, a middle layer and a bottom layer and is characterized in that the surface layer is prepared from, by mass, modified acrylic resin; the preparation method comprises the following steps: preparing SiO2 and CeO2 ceramic microspheres; a near-infrared absorbing pigment; a light response repairing microcapsule; the middle layer is prepared from the following raw materials: polyurethane / polycarbonate alloy; the preparation method comprises the following steps: preparing mullite / Al2O3-SiO2 aerogel; the preparation method comprises the following steps: modifying montmorillonite Sb2O3; the bottom layer raw material comprises a carbon nanotube / graphene heterojunction; the invention relates to an epoxy-acrylic hybrid resin. When the prepared material is applied to the car cover, the heat insulation temperature difference of 25 DEG C or above, efficient flame retardance and good weather resistance can be achieved, and the bottleneck that a traditional material is single in function and unbalanced in performance is broken through.

The application belongs to the technical field of lithium ion batteries, and particularly relates to a kind of antimony modified lithium cobalt oxide material and its preparation method and application.The antimony modified lithium cobalt oxide material provided by the application comprises layered lithium cobalt oxide and an antimony layer wrapped on the surface of the layered lithium cobalt oxide;The antimony layer comprises an antimony oxide compound.The application adopts an antimony layer to wrap lithium cobalt oxide, enhances the interface stability of lithium cobalt oxide, makes it have good structural stability at high voltage, and has excellent cycle stability and rate performance as a positive electrode material.

The invention discloses an ethylene glycol antimony production waste residue recovery method based on a water washing and acid leaching method, and relates to the technical field of chemical production waste residue treatment and resource recovery, and the method comprises the following steps: mixing waste residues with deionized water to obtain a first mixture, adding a surfactant, stirring, screening, and carrying out solid-liquid separation to obtain solid waste residues and a water washing solution, distilling water washing liquid to recover ethylene glycol; mixing the solid waste residues with acid liquor to obtain a second mixture, and performing solid-liquid separation after stirring reaction to obtain antimony-containing pickle liquor and acid leaching residues; neutralizing the antimony-containing pickle liquor to generate antimony trioxide precipitate, and separating and drying to obtain high-purity antimony trioxide; the acid leaching residues are washed and then circulated to the acid leaching step or innocent treatment according to the antimony content, and the waste liquid is recycled after acid liquid and water are recycled. By optimizing the washing and acid leaching processes, the recovery efficiency of antimony and ethylene glycol is remarkably improved; the waste liquid is recycled after being recovered and treated, so that the generation of wastes is reduced, and the environmental pollution risk is reduced.

To provide a battery cell comprising an AMO material capable of improving a device in the capacity, cycle characteristics and life.SOLUTION: A battery cell comprises an acidified metal oxide ("AMO") material, preferably in monodispersed nanoparticulate form 20 nm or less in size, having a pH less than 7 when suspended in a 5-wt.% aqueous solution and a Hammett function H0 greater than -12, at least on its surface.SELECTED DRAWING: Figure 1

The present invention relates to the field of new energy industries, specifically to ultrathin antimony oxide nanoribbons, their preparation method, and applications. First, high-intensity point ultrasound is used to reduce the size of antimony powder particles to below 20 nm by controlling the ultrasound conditions. Second, a mild hydrothermal synthesis method is used to prepare aggregates of Sb2O3 nanoribbons by controlling the hydrothermal temperature. The final step includes exfoliation, separation and purification, and freeze-drying to obtain a powder material of ultrathin Sb2O3 nanoribbons. The Sb2O3 nanoribbons prepared by the present invention exhibit high quality, good dispersibility, high yield, and a high degree of oxidation, overcoming the technical drawbacks of prior art methods, such as relatively poor sample quality and low yield of Sb2O3 nanoribbons. The Sb2O3 nanoribbon-based sodium ion battery anode material prepared by the present invention exhibits excellent charge-discharge capacity, cycle stability, and rate performance.

The present invention relates to the field of inorganic materials, and in particular to a method for preparing clustered antimony trioxide. The method comprises the following steps: adding antimony trichloride to an organic solvent consisting of ethanol and n-butanol, adding a surfactant and mixing, dropping deionized water, and adjusting the pH of the system to 1-2 to obtain a mixed solution. The mixed solution is transferred to a polytetrafluoroethylene-lined autoclave, sealed, heated to 120-150°C, and reacted for 5-10 hours. After returning to room temperature, the pH of the reaction solution is adjusted to 8-9 with an alkaline solution, stirred for 10-60 minutes, and then the precipitate is collected, washed, and dried. The clustered antimony trioxide prepared by the present invention is used as an active material and can significantly improve the electrochemical performance of a lithium-ion battery.

The invention relates to the field of inorganic materials, in particular to a preparation method of antimony trioxide nanoparticles, which specifically comprises the following steps: uniformly mixing antimony sulfide ore with inorganic fused salt, transition metal oxide and a carbon material, grinding into powder, pressing the powder into blocks, smelting to obtain molten liquid, separating crude antimony from the molten liquid, dissolving the crude antimony with hydrochloric acid, and drying to obtain the antimony trioxide nanoparticles. Adding high-purity antimony powder, stirring and reacting to obtain an antimony trichloride crude solution, filtering the antimony trichloride crude solution, adding ammonia water and ionic liquid into the obtained filtrate, stirring and reacting, collecting a product, and drying. The inorganic molten salt contains metal fluoride, and antimony trioxide prepared by the method not only has a cubic crystal form, but also has a nano size, and is higher in economic added value and wider in application prospect.

The invention discloses a preparation method of low-temperature adaptive antimony trioxide, and relates to the technical field of antimony trioxide preparation, and the preparation method comprises the following steps: heating and melting a metal ladder to form antimony liquid; adding a nano auxiliary material into the antimony liquid, wherein the nano auxiliary material comprises at least one of nano zinc oxide, nano cerium oxide and nano titanium oxide; blowing in an oxygen-containing atmosphere for oxidation reaction to generate antimony trioxide steam; cooling the antimony trioxide steam to 15-80 DEG C to generate antimony trioxide powder; and collecting the powder and carrying out post-treatment. By introducing the nano auxiliary material and utilizing the high specific surface area and catalytic activity of the nano auxiliary material, the oxidation reaction activation energy is reduced, the reaction temperature of a traditional process is reduced, the energy consumption is reduced, and the thermal wear of equipment is reduced. And a functional coating is formed on the surfaces of the antimony trioxide particles through a nano auxiliary material, so that the dispersity in a low-temperature environment is remarkably improved, and the defect that antimony trioxide produced by a traditional process is easy to agglomerate at a low temperature is overcome.

The invention relates to the field of synthesis of nano materials, in particular to composite nano powder as well as a preparation method and application thereof. Aiming at the problems that ATO powder in the prior art has high infrared blocking rate, but only can unidirectionally adjust infrared light and is high in cost, and VO2 can intelligently adjust infrared light and is low in cost and relatively low in infrared blocking rate and the like, the invention provides the composite nano powder integrating the advantages of the ATO powder and the VO2 powder. The film prepared from the composite nano powder provided by the invention not only can realize high infrared rejection rate, but also can adjust infrared light in two directions, the preparation cost is low, and low-cost preparation of the high-performance intelligent temperature control film can be realized. Compared with existing ATO powder or heat insulation powder commonly used in the market, the cost is greatly reduced, and the heat insulation powder can be widely applied to the fields of building glass curtain walls, automobile films, agricultural films and the like.

The invention belongs to the technical field of metallurgy, and relates to a method for producing antimony white by directly oxidizing crude antimony, which comprises the following steps: S1, mixing crude antimony with crude antimony alloy, reacting in an oxygen-containing atmosphere, and obtaining oxidizing slag and melt after the reaction is finished; and S2, the temperature of the melt is adjusted, then compressed air is introduced for a reaction, flue gas containing antimony trioxide is generated, and antimony oxide slag is obtained after the reaction is finished. According to the method, sodium sulfide, sodium hydroxide, sodium thiosulfate and other impurity components contained in crude antimony are fully utilized, and the components are innovatively utilized for arsenic removal reaction, so that the tedious step of adding various auxiliary materials in the traditional process is avoided; and the original sodium sulfide, sodium hydroxide and sodium thiosulfate in the crude antimony can fully exert a synergistic effect, so that the arsenic removal agent shows excellent performance in the arsenic removal effect, the process flow is simplified, the production cost is also remarkably reduced, and the economic benefit and the process efficiency are both improved.

The present application relates to a kind of methods for recovering tellurium from lead anode slime, and the method is specifically: lead anode slime is mixed with reducing agent and slagging agent, the mixture is put into a horizontal converter for smelting and impurity removal, by controlling smelting time and temperature, the output waste slag is poured out, and a crude antimony alloy containing gold, silver, antimony, tellurium, lead and other elements is produced; the crude antimony alloy is added with a collector in a deslagging pot, so that the tellurium element enters the antimony alkali slag to separate from gold, silver, lead and other elements; the collected antimony alkali slag is deeply deslagged, and the deslagged antimony alkali slag is put into a silver separation furnace for high-temperature smelting, the molten material is blown and slagged by adding a mixed slagging agent, and more than 40% tellurium slag is produced, which is transferred to a tellurium electrodeposition process for finished tellurium ingot production. The present application improves the recovery rate of tellurium in lead anode slime, ensures the efficient recovery of gold, silver and other precious metals, and has the advantages of clear process, simple process, low cost and the like.

The invention relates to the field of inorganic materials, in particular to an antimony trioxide material and application thereof.The antimony trioxide material is composed of an internal cavity and a shell layer, and the internal cavity is prepared by taking hyperbranched polymethyl methacrylate coated sulfur as a template agent. The material can be widely popularized as a secondary battery negative electrode material.

The application discloses a Sb2O3 nano array-carbon-based composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) soaking a carbon-based material in an antimony salt solution; (2) annealing the carbon-based material after soaking; and (3) performing a hydrothermal reaction on the carbon-based material after annealing in an epitaxial growth solution to obtain a Sb2O3 nano array on the carbon-based material. The epitaxial growth solution contains an antimony source, a template agent and a precipitant. The application improves the electrochemical performance by improving the micro-morphology of the electrode material, and the composite material has good rate performance and cycle stability.

The application relates to a low-temperature ball-milling orthorhombic nanometer antimony trioxide preparation method, which comprises the following steps: drying micron-level cubic antimony trioxide in a vacuum drying box; adding the dried cubic antimony trioxide into a ball mill tank according to a ball-to-material ratio of 30:1, grinding the ball mill tank at a rotating speed of 580r / min-700r / min and a temperature of-80 DEG C--60 DEG C for 8-10h to obtain milled antimony trioxide; and screening the milled antimony trioxide to obtain orthorhombic nanometer antimony trioxide, wherein the mesh number of the screen is 100-400 meshes; the low-temperature ball milling realizes preparation of the orthorhombic nanometer antimony trioxide, the raw material source is rich, the preparation process is simple, the method has the characteristics of green environmental protection and low cost, is suitable for large-scale production, the obtained product has the advantages of narrow particle size distribution, small average particle size and good dispersity, not only has excellent characteristics of nanometer particles, but also has unique optical characteristics, and effectively meets the application of photosensitive materials and semiconductor materials.

The invention discloses hydrophobic flame-retardant antimony pentoxide hydrosol and a preparation process of dry powder of the hydrophobic flame-retardant antimony pentoxide hydrosol, and relates to the technical field of antimony pentoxide processing. The invention discloses a preparation process of hydrophobic flame-retardant antimony pentoxide hydrosol, which comprises the following steps: blending antimony trioxide and water, and adding a compound stabilizer for dispersion reaction to obtain a mixture; heating the mixture to a reflux state, dropwise adding a hydrogen peroxide solution, and carrying out reflux oxidation reaction to obtain hydrophobic flame-retardant antimony pentoxide hydrosol; the compound stabilizer is prepared from 1-hydroxyethylidene-1, 1-diphosphonic acid, a charge control agent and gamma-methacryloxypropyltrimethoxysilane. The prepared composite stabilizer is added into the preparation process of the hydrophobic flame-retardant antimony pentoxide hydrosol, and the prepared hydrophobic flame-retardant antimony pentoxide hydrosol has the characteristic of good hydrophobic flame-retardant performance.

The invention discloses a continuous production method and equipment for preparing antimony pentoxide, and relates to the field of antimony pentoxide colloid production.The equipment comprises a mounting table, and a plurality of reaction bent pipes are fixedly connected to the mounting table. Two raw materials are accurately introduced into the reaction bent pipe and the mixing and heating mechanism in proportion, and the first rotation driving piece drives the transmission pipe and the screw rod to rotate, so that smooth flowing and full stirring and mixing of the raw materials in the reaction bent pipe are realized, and the reaction is promoted. Meanwhile, the heating temperature of the heat supply mechanism is gradually increased from left to right, and the raw materials are fully and uniformly heated, so that byproducts caused by local overheating are avoided, and the reaction purity is ensured. In addition, a second rotation driving piece in the discharging pipe drives the screw rod to convey the mixed raw materials again, continuous and sufficient reaction is achieved, the reaction effect and efficiency are greatly improved, and the product quality is improved.

This invention belongs to the field of antimony white furnace gas phase crystallization technology, specifically an antimony white furnace gas phase cooling crystallization device, including a crystallizer fixedly installed on the antimony white furnace via a flange, and further including: an air inlet and a material outlet opened on the crystallizer; a heat insulation chamber located at the lower end of the crystallizer; two collection plates slidably installed in the heat insulation chamber; a crystallization chamber located at the upper end of the heat insulation plate; a vent pipe installed in the middle of the crystallization chamber; and an air outlet opened on the crystallizer. By setting up the heat insulation plate and the two collection plates, the crystallization chamber and the antimony white furnace are isolated, so that the gas phase in the antimony white furnace cannot directly enter the crystallization chamber, thus ensuring the temperature of the crystallization chamber.