140 results about "Strontium carbonate" patented technology

The invention relates to the technical field of glazes, and particularly discloses an antifouling glaze with a snow velvet effect and a preparation method thereof. The glaze comprises the following raw materials in parts by weight: 35-45 parts of quartz stone, 4-6 parts of zinc oxide, 7-8 parts of strontium carbonate, 4-5 parts of barium carbonate, 7-9 parts of calcite, 8-10 parts of talc, 5-8 parts of kaolin, 0.01-0.1 part of titanium dioxide and 1-5 parts of a microcapsule repairing agent. According to the glaze, a large number of fine willemite crystals can be separated out, so that a flickering crystal flower effect is generated, and a glass phase between the crystals is very compact, so that the unification of a visual effect and an antifouling function is realized. Even if the surface is scrubbed to generate scratches, the surface can be recovered through self-repairing, so that the antifouling effect is further improved.

The invention provides a self-repairing hydrated salt phase change microcapsule as well as a preparation method and application thereof, and belongs to the field of phase change materials. The preparation method comprises the following steps: preparing a hydrated salt phase change material and sorbitol into eutectic melt by adopting a melting method; strontium carbonate, sorbitol grafted nano titanium dioxide, SiO2-coated silicone rubber microspheres, hollow Al2O3 microspheres, tannic acid microcapsules, alpha-zirconium phosphate, melamine polyphosphate, diethyl aluminum hypophosphite, carboxylated multi-walled carbon nanotubes, polydopamine modified boron nitride nanosheets and hydrophilic fumed silica are added into the eutectic melt, and blending is performed to obtain a core material; The preparation method comprises the following steps: adding strontium carbonate, sorbitol grafted nano titanium dioxide, SiO2-coated silicone rubber microspheres, hollow Al2O3 microspheres, tannic acid microcapsules, alpha-zirconium phosphate, melamine polyphosphate, diethyl aluminum hypophosphite, carboxylated multi-walled carbon nanotubes, polydopamine modified boron nitride nanosheets and hydrophilic fumed silica into the eutectic melt; bio-based polyurethane-polyurea is used as a shell material, the core material is coated in the shell to prepare the microcapsule, and the temperature of the coating operation is not higher than the phase change temperature of the hydrated salt phase change material; the surface is coated with a super-hydrophobic coating. According to the invention, a solid filler system is constructed, and a low-temperature preparation process is combined, so that the phase-change microcapsule with high performance, high reliability and high safety is developed.

The invention belongs to the technical field of ceramics, and particularly relates to a three-dimensional effect glaze, a three-dimensional effect ceramic tile and a preparation method thereof. The three-dimensional effect glaze is composed of honeycomb ground glaze and honeycomb effect glaze; the honeycomb ground glaze comprises the following mineral components in percentage by mass: 20%-30% of quartz, 5%-10% of kaolin, 12%-18% of albite, 7%-15% of calcite, 2%-7% of wollastonite, 12%-17% of calcined talc, 15%-25% of calcined zinc oxide, 2%-6% of titanium dioxide, 2%-4% of glass powder, 1%-3% of strontium carbonate and 1%-5% of dolomite. The glaze with the honeycomb effect comprises the following mineral components in percentage by mass: 5%-15% of quartz, 5%-10% of kaolin, 40%-55% of albite, 2%-6% of barium ice feldspar, 2%-10% of calcite, 7%-15% of calcined talc, 1%-4% of calcined zinc oxide, 7%-15% of red mud and 3%-5% of coal gangue. The novel effect glaze is developed, the glaze surface is flat and smooth, meanwhile, the ground glaze is pushed to the surface through the gas phase disturbance effect, and the effect glaze sinks and wraps the ground glaze in a three-dimensional honeycomb shape.

The invention relates to a base metal high-voltage multilayer ceramic dielectric capacitor and a preparation method, the base metal high-voltage multilayer ceramic dielectric capacitor is formed by stacking and firing dielectric layers, and each dielectric layer comprises a dielectric layer and an electrode printed on the dielectric layer. The dielectric layer comprises the following raw materials: a BMYT main matrix, an NN material, magnesium oxide, manganous-manganic oxide, zirconium dioxide, calcium carbonate, strontium carbonate and rare earth oxide; through the raw material composition and the preparation method of the ceramic dielectric capacitor, the prepared ceramic dielectric capacitor has excellent performances of high dielectric constant, high voltage resistance, stable dielectric-temperature characteristic curve, low loss, high insulation resistance, long-term high-voltage reliability and the like under the condition of high dielectric thickness (30 microns before firing).

The invention relates to the technical field of building ceramics, in particular to waxy antifouling matte glaze and a preparation method and application thereof.The waxy antifouling matte glaze is prepared from, by mass, 7-10 parts of kaolin, 6-15 parts of calcined kaolin, 4-8 parts of quartz, 20-30 parts of potassium feldspar, 5-15 parts of albite, 5-10 parts of wollastonite, 1-5 parts of zinc oxide, 5-10 parts of strontium carbonate, 5-12 parts of barium carbonate and 10-20 parts of crystalline frit; the crystalline frit is prepared from the following raw materials in parts by mass: 25 to 35 parts of kaolin, 3 to 8 parts of calcined aluminum oxide, 20 to 35 parts of calcite, 0.5 to 3 parts of dolomite, 5 to 10 parts of zinc oxide, 25 to 35 parts of potassium feldspar, 0.5 to 3 parts of barium carbonate and 1 to 5 parts of anorthite powder. The waxy antifouling matte glaze provided by the invention not only has antifouling performance, but also has high hardness and high wear resistance on the premise of having matte texture and waxy silky hand feeling, so as to overcome the defects in the prior art.

The invention relates to the technical field of building glazed tiles, in particular to an antibacterial glazed tile and a preparation method thereof.The antibacterial glazed tile comprises a green body layer and an antibacterial glaze layer which are sequentially arranged from bottom to top; wherein the antibacterial glaze layer is obtained by calcining antibacterial glaze; the antibacterial glaze is prepared from the following raw materials: high-temperature antibacterial frit, calcined kaolin, corundum, quartz, dolomite, calcined talc, strontium carbonate, wollastonite, potassium feldspar and albite; the high-temperature antibacterial frit is prepared from the following raw materials: zirconium silicate, a silver antibacterial agent, calcined aluminum oxide, calcined talc, quartz, wollastonite, kaolin, calcium phosphate, potassium feldspar, albite, boric acid and lithium carbonate. According to the antibacterial glazed tile and the preparation method thereof provided by the invention, the formula of the antibacterial glaze is optimized, so that the antistatic property and the corrosion resistance can be improved on the premise of ensuring the antibacterial property of the antibacterial glazed tile.

The invention belongs to the technical field of magnetic material preparation, and particularly relates to a production process of high-performance rare earth permanent magnetic ferrite magnetic powder. The process comprises the following steps: preparing iron oxide red and auxiliary materials, wherein the auxiliary materials comprise calcium carbonate, strontium carbonate, lanthanum oxide and cobalt oxide; mixing the raw materials in proportion, and then carrying out dry ball-milling densification to obtain a mixed material; the obtained mixture is subjected to steam treatment, the water content of the mixture reaches 2%-5%, then curing is conducted, the curing time is at least 30 min, and the curing process is completed in the auger transfer process; pelletizing is performed; pre-sintering is performed; and coarsely crushing and sieving the pre-sintered material to obtain the rare earth permanent magnetic ferrite magnetic powder. Through steam pretreatment and curing, the strength and thermal stability of the ball material are remarkably improved, the ball material is kept complete and good in fluidity in the kiln, and the consistency and the qualified rate of products are improved.

The application belongs to the technical field of magnetic material preparation, and particularly relates to a production process of high-performance rare earth permanent ferrite magnetic powder. The process comprises the following steps: preparing iron red and auxiliary materials, wherein the auxiliary materials comprise calcium carbonate, strontium carbonate, lanthanum oxide and cobalt oxide; mixing raw materials in proportion, then performing dry ball milling to obtain mixed materials; performing steam treatment on the obtained mixed materials to make the water content of the mixed materials reach 2-5%, then performing ripening, and the ripening time is at least 30 min, and the ripening process is completed in the screw conveyor; balling; pre-sintering; performing coarse crushing on the pre-sintered materials and sieving to obtain rare earth permanent ferrite magnetic powder. Through steam pretreatment and ripening, the strength and thermal stability of the ball materials are significantly improved, the ball materials remain complete in the kiln, the flowability is good, and the consistency and qualified rate of the product are improved.

The application relates to a three-dimensional hollow network structure boron nitride, and a main process of a preparation method thereof is as follows: taking citric acid, sodium borate and strontium carbonate as raw materials, a boron-containing precursor is obtained through a sol-gel method; then, the boron-containing precursor is pre-nitridated under a nitrogen-containing atmosphere to obtain a pre-nitridation product; next, the pre-nitridation product is uniformly mixed with ammonium borate and ammonium chloride through ball milling, and then is placed into a high-pressure reaction kettle to react, so that the three-dimensional hollow network structure boron nitride is obtained. The three-dimensional hollow network structure boron nitride prepared by the application has a connected network structure formed by multiple cavity units, has high purity, provides a new idea for preparation of a hollow boron nitride structure, and has a good application prospect in the fields of gas adsorption, water pollution treatment, hydrogen storage and a drug carrier.

An active cathode material for a chloride-ion battery according to the present invention is a strontium ruthenium oxide with a layered perovskite structure. A process for producing an active cathode material according to the present invention comprises (a) preparing a raw material mixture by mixing strontium carbonate and ruthenium oxide, (b) pelletizing the raw material mixture into pellets, and (c) firing the pellets. A cathode composite material for a chloride-ion battery according to the present invention comprises the active cathode material according to the present invention. The chloride-ion battery according to the present invention comprises a layer of active cathode material, and the layer of active cathode material contains the cathode composite material according to the present invention.

The invention belongs to the technical field of biochemical engineering, and relates to a method for separating and purifying pyrroloquinoline quinone in fermentation liquor by using soluble strontium salt. Performing membrane filtration on the PQQ-containing fermentation liquor to remove solid particles and macromolecular impurities with the molecular weight of not less than 10,000 Daltons in the fermentation liquor; adding a strontium salt solution into the filtrate subjected to membrane filtration, and reacting to generate an organic strontium precipitate; strontium salt adopted in the strontium salt solution is water-soluble strontium salt; adding the organic strontium precipitate into the carbonate solution, adjusting the pH value of the solution to be alkaline to convert the organic strontium precipitate into strontium carbonate precipitate, and then carrying out solid-liquid separation to obtain a separation solution containing pyrroloquinoline quinone anions; and adjusting the pH acidity of the separation solution containing the pyrroloquinoline quinone anions, and filtering to obtain the pyrroloquinoline quinone. The method is completely based on a water phase system, separation and purification of PQQ in the fermentation liquor are achieved through precipitation conversion water phase extraction, the separation and purification process is simplified, and the cost is reduced.

The invention relates to the technical field of zinc hydrometallurgy, and discloses a method for rapidly determining the content of calcium, iron and barium in strontium carbonate by using ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectrometry), a strontium carbonate sample is directly dissolved by using dilute nitric acid, filtration is not needed, and the pretreatment process is simplified; meanwhile, by optimizing instrument parameters and analysis wavelength of ICP-AES, rapid, synchronous and accurate determination of three impurity elements of calcium, iron and barium is realized. The method is easy and convenient to operate, high in analysis speed, good in precision and high in accuracy, can meet the requirement for rapid monitoring of the strontium carbonate raw material quality in the zinc hydrometallurgy industry, and provides reliable technical support for optimizing lead removal process parameters, improving the cathode zinc quality and reducing the production cost.

This invention discloses a slab with a crystalline effect. The slab includes a blank layer, on the surface of which a glaze modifier is applied to form a glaze modifier layer. The glaze modifier comprises the following raw materials in parts by weight: 5-8 parts potassium feldspar, 4-7 parts calcined talc, 3-5 parts modified translucent stone agent, 3-5 parts calcium oxide, 2-4 parts barium oxide, 1-3 parts cobalt oxide, and 2-4 parts strontium carbonate modifier. The slab with a crystalline effect of this invention is formed by applying the glaze modifier. The glaze modifier uses potassium feldspar, calcined talc, calcium oxide, barium oxide, and cobalt oxide as a matrix. By adding strontium carbonate modifier and modified translucent stone agent, the two are synergistically enhanced, improving the crystalline effect of the product and increasing its stain resistance and easy-to-clean properties. Simultaneously, the product exhibits significant improvements in scrub resistance and alkali corrosion resistance.

The invention discloses a method for introducing a magnetic flux pinning center into a Bi2212 superconducting wire. The method comprises the following steps: 1, mixing strontium carbonate, calcium carbonate, copper and an M compound, and then mixing with nitric acid to react; 2, performing spray pyrolysis to obtain doped second-phase raw powder, and mixing the doped second-phase raw powder with Bi2212 powder; 3, carrying out one-step heat treatment to obtain Bi2212 phase forming powder containing a doped second phase; 4, tubing and drawing to obtain a multi-core Bi2212 wire rod; and 5, heat treatment. Nano-scale doping elements are dispersed on the surface of a micro-nano-scale hollow microspherical alkaline earth cuprate carrier and then introduced into a Bi2212 wire, so that AEC participates in a reaction in the recrystallization process to generate Bi2212 crystal grains, a nano-scale second phase is carried to enter the Bi2212 crystal grains, the second phase is prevented from appearing at a crystal boundary and abnormally growing, a magnetic flux pinning center is effectively introduced, and the magnetic flux pinning efficiency is improved. The current-carrying performance of the Bi2212 superconducting wire in a magnetic field is improved, and the Bi2212 superconducting wire is suitable for the field of superconducting wires.

The present application relates to the technical field of building ceramics, and particularly relates to a hydrophilic self-cleaning glaze, a hydrophilic self-cleaning ceramic tile and a preparation method thereof, which comprises the following raw materials: zeolite, quartz, calcite, strontium carbonate, barium carbonate, diatomite, kaolin, borax and aluminum phosphate. The hydrophilic self-cleaning glaze provided by the present application can not only realize excellent and persistent hydrophilic self-cleaning property under the premise of reducing production cost, but also is beneficial to ensuring high permeability, high hardness and high wear resistance, and solves the technical problems of poor persistence of hydrophilic self-cleaning property and high production cost in the prior art.

The invention discloses a composite refining agent for efficient aluminum melt purification and a use method of the composite refining agent, and belongs to the technical field of aluminum smelting purification. The invention relates to a composite refining agent for efficiently purifying an aluminum melt. The composite refining agent is prepared from the following components in percentage by weight: 40-60% of anhydrous magnesium chloride; 20%-35% of potassium chloride; 5%-12% of strontium carbonate; 3%-8% of rare earth lanthanum chloride; 5%-15% of nanoscale carbon coated diatomite; and 2%-5% of anhydrous boric anhydride. According to the method, a matched and developed stepped partition refining process is combined, synchronous completion of degassing and deslagging, Si phase modification, alpha-Al refining and Fe phase neutralization is achieved, the technological process is remarkably simplified, the production efficiency is improved, the risk of secondary pollution of melt caused by multiple times of treatment is reduced, the hydrogen content and the slag inclusion content of secondary aluminum refined through the product are remarkably reduced, and the production cost is reduced. The microscopic structure is comprehensively improved, and the performance can be close to or even reach the level of primary aluminum.

The utility model relates to the field of strontium sulfate purification, in particular to a device for conveniently purifying strontium sulfate. The utility model provides a device for conveniently purifying strontium sulfate, which can directly filter and evaporate and crystallize the strontium sulfate after stirring and dissolving the strontium sulfate, realizes the integration of dissolving, filtering and evaporative crystallization, does not need to replace equipment for treatment, reduces the purification cost, improves the purification efficiency and is convenient to use. A device for conveniently purifying strontium sulfate comprises an outer frame, a sealing door and the like, and the left rear part of the outer frame is rotatably connected with the sealing door. According to the utility model, strontium carbonate and a dissolving agent flow into the dissolving pipe to be stirred and dissolved, and are filtered by the filter paper, so that liquid drips into the crystallization barrel, and the liquid is heated by the heater to be evaporated and crystallized, so that strontium sulfate can be directly filtered and evaporated and crystallized to be purified after being stirred and dissolved, and the integration of dissolving, filtering and evaporative crystallization is realized; equipment replacement for treatment is not needed, the purification cost is reduced, the purification efficiency is improved, and use is convenient.

A cathode active material for a chloride-ion battery according to the present disclosure is a strontium ruthenium oxide having a layered perovskite structure. A method for producing a cathode active material according to the present disclosure includes (a) preparing a raw material mixture by mixing strontium carbonate and ruthenium oxide, (b) pelletizing the raw material mixture into pellets, and (c) firing the pellets. A cathode composite material for a chloride-ion battery according to the present disclosure includes the cathode active material according to the present disclosure. The chloride-ion battery according to the present disclosure includes a cathode active material layer, and also the cathode active material layer contains the cathode composite material according to the present disclosure.

The invention relates to the technical field of permanent magnetic ferrite materials, and discloses a high-performance permanent magnetic ferrite material with both high residual magnetism and high coercive force and a preparation method thereof.The main crystalline phase of permanent magnetic ferrite is M-type ferrite, raw materials are matched according to the mass percent, ferric oxide accounts for 84-88 wt%, strontium carbonate accounts for 12-16 wt%, and 1-1.5 wt% of SiO2 is added; the preparation method comprises the following steps: calculating the weight of iron oxide and strontium carbonate according to the mass percentage, calculating the weight of SiO2 according to the total weight, and uniformly mixing; pre-sintering, cooling and crushing to obtain a pre-sintered material; adding the pre-sintered material into a ball mill, adding distilled water and a secondary additive, and performing wet grinding to obtain slurry; orientation molding: carrying out compression molding on the slurry under an orientation magnetic field to obtain a green body; and sintering the green body, and cooling to room temperature to obtain the permanent magnetic ferrite. By optimizing the ratio of the composite alkaline earth metal and cooperatively doping Co and rare earth elements, the magnetic performance is improved.

This invention relates to the field of architectural ceramics technology, and discloses a non-slip, stain-resistant matte antique-style tile and its preparation method, including: A. preparing the body layer; B. applying the base glaze; C. applying the non-slip and stain-resistant matte glaze; D. firing. The anti-slip and anti-fouling matte glaze includes anti-fouling matte glaze and anti-slip dry granules. The anti-fouling matte glaze is composed of 7-10 parts kaolin, 5-10 parts calcined kaolin, 4-8 parts quartz, 20-30 parts potassium feldspar, 8-15 parts sodium feldspar, 5-10 parts calcined talc, 1-3 parts zinc oxide, 2-5 parts strontium carbonate, and 20-30 parts anti-fouling and wear-resistant frit. The chemical composition of the anti-slip dry granules includes 38-42% SiO2, 20-24% Al2O3, 18-20% CaO, 0.5-2% MgO, 3-4.5% K2O, 0.2-1% Na2O, 8-10% ZnO, 1-2.5% BaO, and 1-2.5% B2O3. This solution can balance gloss, stain resistance, hardness, wear resistance, color development, and anti-slip properties under existing firing conditions, thereby improving consumer satisfaction.

The invention relates to permanent magnetic ferrite magnetic powder as well as a preparation method and application thereof. The method comprises the following steps: proportioning an iron source and a strontium carbonate raw material, and carrying out mixing, pre-sintering and crushing to prepare the permanent magnetic ferrite magnetic powder, the strontium carbonate raw material meets the following combination characteristics: the mass percentage of SrCO3 is 95.0-97.5%; the mass percent of SiO2 is 0.5 to 2.5 percent; the average particle size is 3-8 microns; and the particles of the strontium carbonate raw material have spindle-shaped, olive-shaped or spheroidal macroscopic morphology, and the ratio c / a of the axial length c to the diagonal spacing a of the particles is less than 3. According to the method, the strontium carbonate raw material with specific coarse particles and high silicon dioxide content is adopted, so that the technical problems of non-uniform raw material mixing and abnormal grain growth in the sintering process are solved.

The application discloses a kind of composite antibacterial antiviral agent and preparation method, protective glaze, ceramic tile and preparation method, it is related to ceramic tile technical field.The preparation method of the composite antibacterial antiviral agent of the present application includes the following steps: after mixing silicon dioxide, aluminum oxide, copper carbonate, strontium carbonate, boron oxide, soda ash and nickel hydroxide, melt under reducing atmosphere, obtain melt, after melt is quenched by water, dried and broken, obtain green antibacterial antiviral frit;Mix copper carbonate, calcined zinc oxide, silver-loaded zirconium phosphate and calcined alumina to obtain red antibacterial antiviral agent;Green antibacterial antiviral frit and red antibacterial antiviral agent are mixed to obtain composite antibacterial antiviral agent.The composite antibacterial antiviral agent with good antibacterial antiviral effect and without affecting the original color of ceramic tile can be prepared, which is suitable for ceramic tile field, and solves the problem that materials with good antiviral effect easily affect the original decorative color of ceramic tile.

The application relates to the technical field of permanent magnet ferrite pre-sintering material, and discloses a preparation method and application of high-tapping-density permanent magnet ferrite pre-sintering material. The preparation method of the pre-sintering material comprises the following steps: mixing raw materials of pre-sintering material including strontium carbonate and iron red, ball-milling the pre-sintering material with water to obtain a ball-milling slurry, and then drying and removing water; ball-milling and vibrating the material after drying and removing water at a holding temperature of 80-200 DEG C for 30 min-2 h to crush and obtain a powder; and pre-sintering the obtained powder to obtain a pre-sintering material. Compared with the prior art that the pre-sintering material is processed into material balls and then pre-sintered, the preparation method of the application further carries out vibration milling treatment on the ball-milling slurry after drying under certain holding conditions, realizes preliminary ferritization, and then pre-sintering. The obtained pre-sintering material has high tapping density, the ferritization reaction is sufficient, and the remanence and maximum magnetic energy product of the prepared permanent magnet ferrite can be improved.

The invention discloses a display shell capable of generating a yellow smoke effect, which consists of a spherical shell body filled with explosives and effect powder and a paper cup seat loaded with propellant powder, and further comprises an ignition lead and a blasting fuse. According to the display shell provided by the invention, through the three-section synergistic effect of the effect powder, the explosive and the propellant powder, stable generation and high-altitude release of yellow smoke are realized. The effect drug takes 3, 6-diamino-10-methyl acridine hydrochloride as a color development core and is supplemented by a barium nitrate / strontium carbonate composite oxidant system; the explosive triggers the effect explosive to release through a high-heat reaction of aluminum powder-barium nitrate; the propellant ensures that the display shell is accurately lifted off through high-energy output of potassium perchlorate-magnesium aluminum alloy. The three formulas form synergy in three aspects of energy transfer, oxidant complementation and combustion regulation, so that the yellow smoke has the advantages of stable color development, uniform diffusion and long duration.

The application discloses a sagger for sintering of sodium ion battery positive electrode materials and a preparation method thereof, and relates to the technical field of sagger preparation. The sagger for sintering of sodium ion battery positive electrode materials prepared by the application comprises a base layer and a surface coating slurry, the base layer is obtained by mixing and pressing mullite, alumina, cordierite and modified refractory material, the surface coating slurry is obtained by mixing strontium carbonate, modified alumina, silicon carbide and silicon nitride, the base layer is immersed in the surface coating slurry, and then drying and high-temperature sintering are performed to obtain the sagger for sintering of sodium ion battery positive electrode materials. The sagger for sintering of sodium ion battery positive electrode materials prepared by the application has good mechanical properties and corrosion resistance.

This invention discloses a method for the utilization of gas field water resources, specifically including the following steps: Step 1, gas field water treatment: adjusting the pH value to 11-12. Step 2, filtration: solid-liquid separation to obtain precipitate and treated gas field water. Step 3, electrolysis: the gas field water treated in Step 2 undergoes ion-exchange membrane electrolysis to obtain chlorine and hydrogen gas. Step 4, calcination: calcining the precipitate from Step 2 to constant weight. Step 5, dissolution: dissolving in water after calcination. Step 6, filtration: solid-liquid separation to obtain strontium carbonate precipitate and calcium hydroxide solution. Step 7, CO2 introduction: the calcium hydroxide solution reacts with CO2 to obtain calcium carbonate precipitate. This method achieves effective utilization of gas field water resources.

This invention belongs to the field of architectural ceramics, specifically disclosing a matte ultra-soft ceramic tile with a digital mold effect and its preparation method. The ceramic tile comprises, from bottom to top, a body, a base glaze layer, an intermediate glaze layer, a pattern layer, a digital micro-engraving ink layer, and a protective glaze layer. The raw materials for preparing the intermediate glaze layer, by weight, include: 20-35 parts of sodium feldspar, 5-10 parts of potassium feldspar, 5-10 parts of wollastonite, 5-15 parts of dolomite, 5-15 parts of washed clay, 5-20 parts of calcined talc, 3-8 parts of calcined kaolin, 2-5 parts of alumina, 10-20 parts of barium carbonate, 1-5 parts of calcined zinc oxide, and 2-5 parts of strontium carbonate. The raw materials for preparing the digital micro-engraving ink layer, by weight, include: 40-50 parts of inorganic materials, 3-8 parts of dispersant, and 40-60 parts of solvent; the inorganic materials contain bismuth vanadate, a low-temperature first glass powder, and a high-temperature second glass powder.

The application belongs to the technical field of electrocatalysis, and particularly relates to a strontium titanate loaded with iridium clusters and a preparation method and application thereof. The strontium titanate loaded with iridium clusters provided by the application comprises: strontium titanate and iridium clusters loaded on the surface of the strontium titanate; components of the iridium clusters comprise iridium single substance and iridium oxide wrapped on the surface of the iridium single substance; the chemical composition of the strontium titanate is SrTiO 3‑x , 0 < x < 0.5; the chemical composition of the iridium oxide is IrO 2‑y , 0 < y < 2; and the strontium carbonate is a cubic octahedral structure. The strontium titanate loaded with iridium clusters not only has excellent electrocatalytic activity, but also has long-term stability, and can be efficiently and stably operated for a long time under the working conditions of PEMWE.

The invention relates to a cerium-lanthanum co-doped and aluminum-introduced modified permanent magnetic strontium ferrite material as well as a preparation method and application thereof, and belongs to the technical field of ferrite permanent magnetic materials. The preparation method comprises the following steps: adding Al2O3 in an amount which is 0.1-0.9 wt% of the theoretical amount of Fe2O3, and replacing Fe2O3 in an equimolar manner, so that the total mole number of cations is kept unchanged, and finally obtaining a stoichiometric formula: Sr < 0.41 > Ce < 0.175 > La < 0.185 > Ca < 0.23 > Fe < 11.8-x > Al < x > Co < 0.2 > O < 19 >. The preparation method comprises the following steps: carrying out ball-milling mixing on rare earth oxide, strontium carbonate, ferric oxide, cobalt oxide, calcium carbonate and aluminum oxide which is added in proportion, drying, pre-sintering, molding, and sintering at high temperature to obtain the permanent magnetic strontium ferrite material. Rare earth is synergistically doped and Al < 3 + > is equimolar to replace Fe < 3 + >, so that lattice distortion is inhibited, a crystal structure is optimized, and meanwhile, the coercive force and the magnetic energy product of the material are effectively improved. The prepared sample has excellent magnetic performance and thermal stability, and is suitable for the high-performance fields of motors, magnetic sensors, permanent magnet devices and the like.

The present disclosure provides a novel positive electrode active material for a chloride ion battery, a method for manufacturing the same, a positive electrode mixture for a chloride ion battery comprising such a positive electrode active material, and a chloride ion battery comprising such a positive electrode mixture. The positive electrode active material for a chloride ion battery according to the present disclosure is strontium ruthenium oxide having a layered perovskite structure. A method for producing a positive electrode active material for a chloride ion battery according to the present disclosure comprises the steps of: (a) preparing a raw material mixture by mixing strontium carbonate and ruthenium oxide; (b) granulating the raw material mixture to form granules; and (c) firing the particles. The positive electrode mixture for a chloride ion battery according to the present disclosure contains the positive electrode active material for a chloride ion battery according to the present disclosure. The chloride ion battery of the present disclosure has a positive electrode active material layer, and the positive electrode active material layer contains the positive electrode mixture for the chloride ion battery of the present disclosure.