10results about "Antimony oxides/hydroxides/oxyacids" patented technology

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 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.

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 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 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 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.