51 results about "Antimony compounds" patented technology

Methods for preparing catalysts for oxidative dehydrogenation (ODH) of alkanes such as ethane are provided. An exemplary method includes forming a slurry including metal oxides; one or more of a bismuth compound, an antimony compound, and a tellurium compound; a reducing agent; and water; and heating the slurry to form the catalyst. The metal oxides include an oxide of molybdenum and an oxide of vanadium. The bismuth compound includes bismuth oxide, bismuth hydroxide, or a bismuth carbonate. The antimony compound includes an oxide of antimony, an antimony acetate, or an antimony ethoxide. The tellurium compound includes tellurium dioxide. The reducing agent includes molybdenum dioxide and may further include vanadium dioxide. The methods use all inorganic reagents, with no build up COx pressure observed during the hydrothermal synthesis.

This invention belongs to the field of vanadium redox flow batteries, specifically relating to a vanadium redox flow battery precursor, a vanadium redox flow battery, and a method for preparing the same. The vanadium redox flow battery precursor of this invention includes a positive electrode electrolyte precursor and a negative electrode electrolyte precursor; the positive electrode electrolyte precursor includes vanadium ions, an inorganic acid, a positive electrode side reaction inhibitor precursor, and a solvent; wherein the positive electrode side reaction inhibitor precursor is aniline; the inorganic acid includes hydrochloric acid; the negative electrode electrolyte precursor includes vanadium ions, an inorganic acid, a negative electrode side reaction inhibitor precursor, and a solvent; wherein the negative electrode side reaction inhibitor precursor is a metal compound; the metal compound is selected from one or more of tin compounds, bismuth compounds, and antimony compounds; the inorganic acid includes hydrochloric acid.

Provided is a method for producing an alkali-free glass substrate having a small number of pinholes. The method is a method for continuously producing an alkali-free glass substrate of the SiO2-Al2O3-RO (RO represents one or more of MgO, CaO, BaO, SrO, and ZnO) system, which includes a step of preparing a raw batch material containing a tin compound and substantially not containing an arsenic compound and an antimony compound; a step of electrically melting the prepared raw batch material in a melting furnace capable of performing electric heating using an electrode; and a step of forming the molten glass into a plate shape by a down-draw method, and the obtained glass has a β-OH value of 0.05 / mm or more and a number of metallic pinholes of 20 / t or less.

The application discloses a high-nickel positive electrode material and a preparation method and application thereof, and belongs to the technical field of new energy sources. x Co y M z M´ w O2 and a porous base material and a gap-filling substance, wherein 0.80<=x<=0.98, 0.02<=y<=0.20, 0<=z<=0.06, 0<w<=0.02; x+y+z+w=1; M is at least one of Mn and Al, M´ is at least one of Y, Sr, La, B, Mg and Ti; the gap-filling substance exists in the inside of the pores and comprises a sintered product derived from an additive B, the additive B comprises a zirconium-containing compound and at least one of a tungsten-containing compound, an antimony-containing compound and a bismuth-containing compound. The high-nickel positive electrode material has excellent long cycle performance and rate performance. The application further provides a preparation method and application of the high-nickel positive electrode material.

Provided are a composition for depositing an antimony-containing thin film including a novel antimony compound which may be useful as a precursor of an antimony-containing thin film and a method for manufacturing an antimony-containing thin film using the same.

A flame-retardant resin composition according to the present invention comprises: 40-90 wt% of a recycled polypropylene resin (A), 1-25 wt% of a bromine-based flame retardant (B), 1-15 wt% of an antimony (C), 0.1-10 wt% of a hydrotalcite (D), 0.01-3 wt% of a triazine-based compound (E), 0.01-3 wt% of a sulfur-based antioxidant (F), and 0.01-3 wt% of a phosphorus-based antioxidant (G). The bromine-based flame retardant (B) contains at least one of 2,2-bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]propane and bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]sulfone. The phosphorus-based antioxidant (G) is a diphosphate-based compound.

To provide a thermoplastic resin composition that can produce molded articles with excellent extrusion moldability, flexibility, flame retardancy, and dielectric breakdown properties. [Solution] A thermoplastic resin composition comprising (A) 100 parts by mass of polybutylene (terephthalate / dodecadioate) copolymer having a melt mass flow rate of 3.0 g / 10 min or less, measured at a temperature of 250°C and a load of 1000 g in accordance with ISO 1133, (B) 10 to 20 parts by mass of a flame retardant having a benzene ring in its side chain, and (C) 3 to 8 parts by mass of an antimony compound.

The invention discloses a zero-dimensional inorganic metal halide luminescent material as well as a preparation method and application thereof, and belongs to the technical field of photoluminescent materials. The chemical formula of the material is K3SbCl6, the crystal structure of the material is composed of isolated [SbCl6] 3-octahedron and K < + > ions, and typical 0D structural characteristics are shown; k3SbCl6 can emit bright yellow fluorescence under the excitation of ultraviolet light, and shows excellent optical properties, including a remarkable broadband emission characteristic and an ultra-high photoluminescence quantum yield close to 100%. The material is synthesized by adopting a room-temperature solid-state interface diffusion method, a potassium-containing compound and an antimony-containing compound are in close contact under a room-temperature condition, and efficient synthesis of K3SbCl6 can be realized by utilizing an interface diffusion reaction between the potassium-containing compound and the antimony-containing compound; the method does not need harsh synthesis conditions such as high temperature and high pressure, significantly reduces the process complexity and energy consumption, and has good industrial application prospects.

The application provides a phosphorus-nitrogen rare earth compound and a rare earth flame-retardant fabric, which comprises a flame-retardant coating primer and a flame-retardant coating top glue, wherein the flame-retardant coating primer is made of raw materials including the following components in parts by weight: polyurethane emulsion 30-35 parts, the phosphorus-nitrogen rare earth compound of claim 1 15-50 parts, decabromodiphenyl ethane 5-25 parts, N,N-dimethylformamide 20-30 parts, a bridging agent 1-3 parts, a crosslinking agent 1-1.5 parts, and a promoter 0.2-1.5 parts. The phosphorus-nitrogen rare earth compound has excellent synergistic flame-retardant performance, can replace halogen and antimony-containing compounds in a flame-retardant system, reduces the generation of smoke and harmful gases, and has strong structural stability to the para-position structure of hydroxyphenyl phosphoric acid in the form of ion state under specific reaction conditions, and the specific triazine ring structure of melamine can effectively improve the thermal stability of the fabric.

The invention discloses high-activity ethylene glycol antimony waste liquid filtering equipment, and relates to the field of chemical waste liquid filtering equipment.The high-activity ethylene glycol antimony waste liquid filtering equipment comprises a box body and a rotationally-arranged separation kettle, a heating piece and a main filter screen are arranged in the separation kettle, a functional opening is formed in the side wall of the separation kettle, a feeding box is arranged above the box body, and a functional pipe is vertically arranged on the outer side of the separation kettle; one end of the functional pipe is communicated with the functional port, and the other end of the functional pipe is freely arranged; an air entraining pipe is arranged above the box body, the top end of the air entraining pipe is communicated with a negative pressure pump, and the bottom end of the air entraining pipe is communicated with the functional pipe; and a residue collecting drawer is arranged below the box body and is matched with the functional pipe. According to the scheme, through the arrangement of the heating piece, the functional pipe and the negative pressure pump, under the adjustment of negative pressure and temperature rise, ethylene glycol in waste and antimony are promoted to generate esterification reaction, ethylene glycol antimony is formed after cooling, the separated ethylene glycol antimony is filtered out and collected, and through the design of a rotating structure, mother liquor can be repeatedly used; therefore, the content of antimony-containing compounds used in the waste liquid is greatly reduced.

The invention relates to the technical field of glass production auxiliaries, and discloses a clarifying agent for producing photovoltaic glass and a preparation method thereof.The clarifying agent is prepared from, by weight, 10-20 parts of sodium nitrate, 40-70 parts of sodium sulfate, 1-5 parts of antimony compound and 5-15 parts of recycled powder; the recycled powder comprises the optical glass polishing waste powder subjected to recycling treatment. The optical glass polishing waste powder is used for preparing the photovoltaic glass clarifying agent, and the problems that existing polishing waste powder is difficult to economically recycle, rare earth resources are wasted, and the rare earth raw material cost of the glass clarifying agent is high are effectively solved.

The invention discloses a double-layer electrocatalyst prepared based on a pulse electrodeposition method and a preparation method and application of the double-layer electrocatalyst. The preparation method comprises the steps that a cut titanium felt is sequentially subjected to ultrasonic water washing, alkali washing and acid washing; dissolving a tin-containing and antimony-containing compound and a carbon source in a deep eutectic solvent formed by mixing choline chloride and ethylene glycol to prepare an intermediate layer electro-deposition solution; dissolving a tin-containing compound, an antimony-containing compound, a nickel-containing compound, a ruthenium-containing compound and a neodymium-containing compound into a deep eutectic solvent to prepare an outer-layer electro-deposition solution; and taking two graphite electrodes as anodes and the pretreated titanium felt as a cathode, carrying out pulse electrodeposition in the middle layer electrodeposition liquid, drying and roasting the obtained electrocatalyst, and repeating the electrodeposition step in the outer layer electrodeposition liquid to obtain the electrocatalyst. The pulse electrodeposition method is adopted, bidirectional pulse alternate deposition is adopted, meanwhile, the strategy of introducing the middle layer is adopted, a compact and uniform electrocatalyst layer is formed, and the electrocatalyst has high Faraday efficiency when sodium hypochlorite is produced through electrocatalysis and is low in energy consumption and cost.

The invention belongs to the technical field of semiconductor material characterization, and relates to an antimonide material carrier concentration detection method. The method comprises the following steps: growing a first antimony-containing compound material layer on a conductive gallium antimonide substrate; performing an electrochemical capacitance-voltage test on the first antimony-containing compound material layer to obtain a first carrier concentration value; growing a second antimony-containing compound material layer on the semi-insulating gallium arsenide substrate; performing a Hall effect test on the second antimony-containing compound material layer to obtain a second carrier concentration value; obtaining a carrier concentration correction factor based on the ratio of the second carrier concentration value to the first carrier concentration value; growing an antimony-containing compound material layer on one side, far away from the substrate, of the first antimony-containing compound material layer and / or the second antimony-containing compound material layer, and performing electrochemical capacitance-voltage test on each antimony-containing compound material layer to obtain a corresponding carrier concentration value; and obtaining the carrier concentration of each antimony-containing compound material layer based on the carrier concentration value and the carrier concentration correction factor.

This invention discloses a catalyst for the chlorofluorination of 1,1,1,3-tetrachloropropane to prepare 2-chloro-3,3,3-trifluoropropylene, the catalyst being designated M. x O y / Fe p O q -MgF2, in which Fe p O q -MgF2 as support, Fe p O q It is a mixture of Fe2O3 and Fe3O4, M x O y M is the active component. x O y It consists of one or more of Al2O3, CuO, ZnO, and La2O3. The catalyst preparation method includes: adding a polyamine to an aqueous solution of a soluble magnesium salt at 30℃~60℃ with stirring, then adding hydrofluoric acid dropwise, and continuing stirring for 10min~60min after the addition is complete; adding a soluble iron salt to the above solution, and continuing stirring for 30min~90min; adding ammonia dropwise to adjust the pH to 8~10, and continuing stirring for 60min~180min; filtering, washing the filter cake with deionized water until the pH of the filtrate is ~7, drying at 80℃~120℃, and calcining at 200℃~260℃ to obtain the supported Fe. p O q The precursor salt of the active component is loaded onto a support using an impregnation method, dried at 80℃~120℃, and calcined at 260℃~320℃ to obtain the desired catalyst. The catalyst in this invention does not involve chromium or antimony compounds, and exhibits high selectivity and yield for 2-chloro-3,3,3-trifluoropropylene, making it valuable for industrial applications.

To provide a carrier for electrophotographic image formation that can prevent a reduction in the resistance and a reduction in the electrification of a carrier even in long-term printing, and can prevent the occurrence of carrier adhesion and background fogging.SOLUTION: A carrier for electrophotographic image formation includes, in a coating layer, conductive spherical inorganic fine particles (A) and conductive acicular inorganic fine particles (B). The conductive spherical inorganic fine particles (A) have a diameter of 0.30 μm or more and 0.90 μm or less. The conductive acicular inorganic fine particles (B) have a long side with a length of 1.30 μm or more and 1.90 μm or less and a short side with a length of 0.05 μm or more and 0.30 μm or less. At least one of the conductive spherical inorganic fine particles (A) and the conductive acicular inorganic fine particles (B) contain tin oxide doped with an antimony compound. The content of the conductive acicular inorganic fine particles (B) included in the coating layer is 20 mass% or more and 40 mass% or less based on the total amount of the conductive spherical inorganic fine particles (A) and the conductive acicular inorganic fine particles (B).SELECTED DRAWING: Figure 2

This invention relates to a low-antimony composite clarifying agent and its preparation method, belonging to the technical field of composite clarifying agents. The clarifying agent consists of a cascaded gas release component, a multi-solid waste synergistic composition, and sodium aluminate. The cascaded gas release component includes low-temperature nitrates, medium-temperature antimony compounds and nitrates, and high-temperature sulfates. The multi-solid waste synergistic composition is a mixture of sodium-calcium-silicon waste glass powder, waste daily-use ceramic powder, and blast furnace slag powder. Sodium aluminate migrates to the bubble interface at high temperatures, enriching aluminum components, and synergistically produces a dual effect of interface regulation and physical stirring with the semi-molten micro-regions of the multi-solid waste synergistic composition. This clarifying agent significantly reduces the amount of antimony used while lowering the ash bubble density to 0.5 bubbles / cm³. 3 With a flexural strength of 95MPa, it achieves a synergistic improvement in efficient degassing and mechanical reinforcement.

The present invention provides a preparation method and application of a high-specific-capacity lead-acid battery positive electrode lead paste. The positive electrode lead paste is prepared from the following components in parts by weight: 980-1040 parts of lead powder, 85-100 parts of dilute sulfuric acid, 105-120 parts of deionized water, 1.5-3 parts of a composite electrode material, 0.8-1.4 parts of an antimony compound, 0.6-1.2 parts of a metal sulfate, 38-44 parts of lead oxide, and 0.7-1.0 parts of polyester fiber. By optimizing the lead paste formula, the conductivity and specific capacitance of the lead paste are improved, thereby extending the cycle life of the battery.

The present invention belongs to the field of lithium ion battery positive electrode materials, and specifically relates to a modified lithium cobalt oxide material and a preparation method thereof. The positive electrode material composition of the present invention is LiCo 1‑x Sb x O2, wherein x = 0.001-0.02. The cathode material provided by the present invention is synthesized by a simple high-temperature solid-phase method, wherein a lithium-containing compound, a cobalt-containing compound and an antimony-containing compound are uniformly mixed and then sintered twice in an air atmosphere in a box furnace. 1‑x Sb x O2 presents uniform spherical particles with excellent fluidity, dispersibility, and processability, facilitating the preparation of cathode slurries and electrode sheet coating, thereby improving electrode quality. Furthermore, the spherical particles have a higher packing density, which contributes to increased energy density in lithium-ion batteries. Electrochemical performance tests have shown that the prepared cathode material exhibits high discharge capacity, excellent rate capability, and cycling performance.

Methods for preparing catalysts for oxidative dehydrogenation (ODH) of alkanes such as ethane are provided An exemplary method includes providing a first mixture including metal oxides; a reducing agent; and one or more of a bismuth compound, an antimony compound, and a tellurium compound; and heating the first mixture to form the catalyst. The first mixture is essentially free of water. The metal oxides include an oxide of molybdenum and an oxide of vanadium. The bismuth compound includes bismuth oxide, bismuth hydroxide, or a bismuth carbonate. The antimony compound includes an oxide of antimony, antimony acetate, or antimony ethoxide. The tellurium compound includes tellurium dioxide.

The invention relates to a thermoplastic composition comprising, based on the weight of the thermoplastic composition, (A) 40 to 60% by weight of a polyester comprising or consisting of polybutylene terephthalate, (B) 10 to 45% by weight of glass fibers, (C) 10 to 20% by weight of a flame retardant composition comprising an antimony compound, an organic bromine flame retardant, a melamine compound and optionally an anti-drip agent, (D) 0 to 20% by weight of a polycarbonate, and (E) 0 to 5.0% by weight of additional components, where the total amount of (A) to (E) is 100% by weight relative to the composition.

For producing a PVC recyclate (6) from PVC-based plastic particles (2) contaminated with phthalates (8), lead compounds, antimony compounds and / or barium compounds (9), the particle size of the plastic particles (2) is adjusted to a range of 1.0 mm to 10 mm and the plastic particles (2) having this particle size are treated with a solvent (5) consisting of at least 75 % by weight of acetone, isopropyl alcohol and / or ethoxypropanol and containing a basic solubilizing aid. By treating with the solvent (5), phthalates (8), lead compounds, antimony compounds and / or barium compounds (9) are extracted from the plastic particles (2) having the stated particle size in an extraction time of not more than 6.0 hours and an extraction temperature of not more than 50 °C, wherein the PVC recyclate (6) remains in the plastic particles (2) after extraction.

The invention belongs to the field of all-vanadium redox flow batteries, and particularly relates to an all-vanadium redox flow battery precursor, an all-vanadium redox flow battery and a preparation method of the all-vanadium redox flow battery. The all-vanadium redox flow battery precursor comprises a positive electrode electrolyte precursor and a negative electrode electrolyte precursor, the positive electrolyte precursor comprises vanadium ions, inorganic acid, a positive side reaction inhibitor precursor and a solvent; wherein the positive side reaction inhibitor precursor is aniline; the inorganic acid contains hydrochloric acid; the negative electrode electrolyte precursor comprises vanadium ions, inorganic acid, a negative electrode side reaction inhibitor precursor and a solvent; wherein the negative electrode side reaction inhibitor precursor is a metal compound; the metal compound is selected from one or more of a tin compound, a bismuth compound and an antimony compound; the inorganic acid comprises hydrochloric acid.

A release film comprising a polyester film substrate and a release layer, wherein a surface layer of the substrate is made of a polyester containing an antimony compound, an alkaline-earth metal compound, and a phosphorus compound, the surface layer has an intrinsic viscosity of 0.55 or greater, the surface layer has an antimony atom content of 120 ppm or less, the surface of the release layer has a surface free energy of 15-25 mJ / m2, the surface of the release layer has a region surface average roughness (Sa) of 7 nm or less and a maximum projection height of 100 nm or less, and the release layer has a thickness of 0.005-1.2 μm, the release layer being formed from a release-layer formation composition containing an ultraviolet-curable compound.

Provided is a release film having a polyester film base material and a release layer, wherein: the surface layer of the base material comprises a polyester containing an antimony compound, an alkaline earth metal compound, and a phosphorus compound; the intrinsic viscosity of the surface layer is 0.55 or more; the antimony atom content of the surface layer is 120 ppm or less; the surface free energy of the surface of the release layer is 18-35 mJ / m2; the thickness of the release layer is 50-1500 nm, the mean roughness (Sa) of an area of the surface of the release layer is 7 nm or less; and the maximum protrusion height is in the range of 100 nm or less.

The present invention relates to a composition for depositing an antimony-containing thin film and a method for manufacturing an antimony-containing thin film by using the same, the composition comprising an antimony compound which can be effectively used as a precursor of an antimony-containing thin film. The antimony compound according to one embodiment is in a liquid state at room temperature, and thus has excellent storability and handling properties and high reactivity, thereby being capable of effectively forming a metal thin film.

The present invention discloses a birefringent crystal and a preparation method thereof, belonging to the field of optical material technology. The chemical formula of the birefringent crystal is SbTeO3F; the space group of the birefringent crystal is P212121; the unit cell parameters are α=90°, β=90°, γ=90°, and Z=4. During preparation, an antimony-containing compound and a tellurium-containing compound are dissolved in a mixed solution, which is then filtered, and the filtrate is allowed to stand at room temperature for 4 to 5 days; the precipitated crystals are then collected and washed to obtain the obtained product. The birefringent crystal preparation process of the present invention is simple and has good repeatability. It can reduce the preparation cost while improving the yield. The obtained birefringent crystal has a large birefringence and can remain stable in both air and water, and has good physical and chemical stability.

The objective of the present invention is to provide a method for producing a gas-phase catalytic oxidation reaction catalyst exhibiting excellent thermal stability and excellent catalytic activity compared with a conventional catalyst. This method for producing a gas-phase catalytic oxidation reaction catalyst comprises a step (X) for obtaining a gas-phase catalytic oxidation reaction catalyst by firing, in a reactor, a composite oxide containing at least Mo, V, and Sb and an antimony-containing compound having a melting point of 375°C or more and less than 450°C, under a gas atmosphere containing water vapor and at a temperature of 400°C or higher.

The purpose of the present invention is to provide a biaxially stretched polyester film for a diffusion film, which has high breaking strength and has a reduced amount of foreign matter.　The present invention relates to a biaxially stretched polyester film for a light diffusion film, the biaxially stretched polyester film being formed of a polyester resin that contains an antimony compound, an alkaline earth metal compound, and a phosphorus compound, wherein the content of the element antimony in the biaxially stretched polyester film is 125 ppm or less, and the limiting viscosity of the biaxially stretched polyester film is 0.55 dl / g or more.

The application discloses a bromine-antimony compound flame retardant as well as a preparation method and application thereof, and relates to the technical field of flame retardant materials.The bromine-antimony compound flame retardant has a structural formula as shown in formula I, wherein R1 is selected from a phenyl group or a phenoxy group, and R3 is selected from a propane group or a sulfonyl group.The bromine-antimony compound flame retardant has excellent flame-retardant effect.

The invention discloses a nitrogen-assisted organic antimony compound Sb-3 and a synthesis method and application thereof.The compound Sb-3 releases non-activated 1-degree / 2-degree alkyl free radicals under the visible light oxidation-reduction condition, and nitrogen atoms in an antimony framework are achieved at the same time through the donor-acceptor effect: (i) the high stability to air and moisture (H-NMR is not changed after the nitrogen-assisted organic antimony compound is exposed for 1.5 years at the room temperature); (ii) the oxidation potential is reduced to + 0.51-+ 0.63 VvsSCE, so that the excited-state photocatalyst (4CzIPN and the like) can realize SET oxidation, and then a C (sp)-Sb bond is broken through an N-Sb electron relay mechanism to generate an alkyl radical. The free radical can be subjected to Giese addition with electron-deficient olefin / alkyne, can be subjected to Ni / photooxidation reduction cross coupling with aryl halide, and can participate in three-component olefin / alkyne-aryl-alkyl conjugate addition, so that high-region and stereoselective synthesis of trisubstituted olefin is realized.