215 results about "K feldspar" patented technology

The invention discloses double-layer fancy glaze with chapped ground texture and a preparation method of the double-layer fancy glaze, and relates to the technical field of ceramic glaze. The double-layer fancy glaze is composed of a ground glaze layer and a cover glaze layer. The ground glaze raw materials comprise potassium feldspar, kaolin, calcite, quartz, dolomite, zinc oxide and pigment; the cover glaze raw materials comprise potassium feldspar, waste porcelain powder, blank powder, chinastone, limestone, sepiolite, quartz, zirconium silicate with the particle size D50 being less than or equal to 1.0 mu m and pigment. The preparation method comprises the following steps: respectively carrying out ball milling to prepare ground glaze slip (32-40 baume degrees) and cover glaze slip (51-53 baume degrees); spraying ground glaze on the green body, drying, and then soaking with cover glaze; and finally, sintering at the temperature of 1250-1270 DEG C in a reducing atmosphere. Through the synergistic effect of the sepiolite and other components, the cover glaze has high surface tension, forms a microcrack network during drying, generates controllable glaze shrinkage during firing, forms a three-dimensional chap texture with crack width of 1-5mm and strong curled and raised crack edges, and meanwhile, the ground glaze completely covers a green body, so that the product practicability is ensured.

The invention relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method of the high-temperature-resistant flux-cored wire. The high-temperature-resistant flux-cored wire containing the rare earth elements comprises a welding wire skin and a flux core. The flux core comprises the following raw materials of dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, ferro-aluminum, potassium cryolite, potassium titanate, sodium titanate, fine iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, nitrided ferrochrome, bismuth oxide, auxiliaries and the balance reduced iron powder. The auxiliary agent is a mixture of a zirconium-iron alloy, a titanium-iron alloy and an aluminum-magnesium alloy. A specific alloy auxiliary is introduced into the flux core to protect stable transition of rare earth yttrium, yttrium and multiple components synergistically optimize the weld joint performance, 253MA heat-resistant steel is matched, slag and electric arc regulation and control components and a reasonable process are matched, and the welding quality of the welding wire is improved.

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 a high-Ni alloy flux-cored wire for 9% Ni steel welding, which is prepared by coating a flux core with a nickel-based steel strip, and the flux core comprises the following components in percentage by weight: 18.0-30.0% of metal nickel powder, 5.0-8.0% of metal chromium powder, 5.0-9.0% of metal molybdenum powder, 1-2% of metal tungsten powder, 20.0-30.0% of rutile, 1.0-3.0% of quartz, 2.0-5.0% of albite, 1.0-3.0% of potassium feldspar, 0.5-3.0% of mica, 1.0-4.0% of cryolite, 0.2-0.8% of self-made raw material and the balance of reduced iron powder and inevitable impurities. The flux-cored wire belongs to a hastelloy system and is particularly suitable for welding of horizontal position welding and vertical position welding of the marine LNG storage tank, the mechanical performance of cladding metal of the flux-cored wire can reach 50 J or above at the low-temperature impact of-196 DEG C, the tensile strength is larger than 700 MPa, and the flux-cored wire is excellent in crack resistance and comprehensive performance.

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 ceramic high-temperature-resistant materials, and particularly relates to a clay-added waste ceramic-based high-temperature-resistant material as well as a preparation method and application thereof. The waste ceramic-based high-temperature-resistant material added with the clay is prepared by firing waste high-voltage electric porcelain, waste 95 porcelain, the clay, potassium feldspar and silica sol in a mass ratio of (65-75): (10-30): (5-20): (14-16): (7-9). Wherein the particle size of the waste high-voltage electric porcelain is 55 to 65 meshes or 120 to 200 meshes. According to the waste ceramic-based high-temperature-resistant material added with the clay, the solid waste mixing amount is larger than 85 wt%, the breaking strength is 87 MPa, and compared with samples of the same type at the same temperature, the breaking strength is improved by about one time. The clay-added waste ceramic-based high-temperature-resistant material has the triple advantages of high strength, low porosity and slag corrosion resistance, and has wide application prospects in the fields of kiln linings, thermal supports and refractory components in the metallurgy / energy industry.

The invention discloses ceramic filler powder and a preparation method of porous ceramic, and relates to the technical field of ceramic. According to the invention, the raw material components are reasonably proportioned, and the superfine SiC-coated MgAl-LDH compound is used as an additive to be mixed with kaolin, potassium feldspar, quartz, aluminum oxide, silicon carbide and talc to prepare the ceramic filler powder. On the basis, the prepared ceramic filler powder is mixed with carboxymethyl cellulose, polyvinyl alcohol, water glass, magnesium stearate and water, then the mixture is subjected to filter pressing, vacuum pugging and aging, and then the porous ceramic is prepared through a forming process and a sintering process. The porous ceramic prepared from the ceramic filler powder provided by the invention has better compressive strength and corrosion resistance, is beneficial to expanding the application field of products, and particularly meets the requirements of high-end industries.

This invention provides a method for activating and extracting potassium from potassium feldspar, the method comprising the following steps: (1) ball milling potassium feldspar raw material to obtain pre-activated potassium feldspar powder; the pre-activated potassium feldspar powder is in a near-amorphous state; (2) mixing the pre-activated potassium feldspar powder with an alkaline solution and performing a stirring transformation reaction, followed by a first solid-liquid separation to obtain a transformed solid product; the Si / K molar ratio of the main phase of the transformed solid product does not exceed 2.5; the phase composition of the transformed solid product includes garnet and / or nepheline; (3) mixing the transformed solid product with an acid solution and performing a second solid-liquid separation to obtain a potassium-rich leachate. This invention utilizes a stirring transformation reaction with a mixed alkaline solution to restructure potassium feldspar minerals, increasing the reactivity of potassium, and then dissolving potassium with acid to ultimately obtain a potassium-rich leachate, which is beneficial for further recycling.

This invention discloses a high-strength ceramic valley-peak structured corrugated filler, the raw materials of which include clay, kaolin, potassium feldspar powder, cordierite powder, zirconium dioxide powder, reinforcing granular powder, bauxite, and a binder. The corrugated filler material prepared by the method described in this invention has good strength, making it less prone to breakage during stacking or use, thus improving the usability and durability of the corrugated filler.

The application relates to the technical field of welding materials, and particularly discloses a high-temperature-resistant flux-cored wire containing rare earth elements and a preparation method thereof. The high-temperature-resistant flux-cored wire containing rare earth elements comprises a wire sheath and a core; the core comprises the following raw materials: dehydrated rutile, dehydrated potassium feldspar, zircon sand, metal chromium powder, metal nickel powder, electrolytic manganese, ferrotitanium, aluminiferous iron, potassium cryolite, potassium titanate, sodium titanate, iron powder, yttrium-based iron alloy powder, atomized ferrosilicon, chromium-iron nitride, bismuth oxide, an additive, and the balance of reduced iron powder; the additive is a mixture of zirconium-iron alloy, ferrotitanium alloy and aluminum-magnesium alloy. The application introduces a specific alloy additive into the core to protect the transition of the rare earth yttrium, optimizes the welding performance of the yttrium and multiple components in cooperation, matches the 253MA heat-resistant steel, adjusts the components of the molten slag and the electric arc, and reasonably processes the technology, so that the welding quality of the wire is improved.

The application relates to the technical field of ceramic products, in particular to a preparation process of high-performance ceramic products made of environment-friendly foamed snowflake glaze, which comprises the following steps: wet ball milling 10-15 parts by weight of kaolin, 8-12 parts by weight of aluminum oxide, 4-7 parts by weight of clay and 2-3 parts by weight of potassium feldspar sufficiently, then shaping, and then sintering at a temperature of 500-520 DEG C for 1 h to obtain a bottom base body. The ceramic product is made by heat treatment of the bottom base body matched with the snowflake glaze, the snowflake glaze is made by mixing raw materials such as base glaze, foaming agent and snowflake crystal nucleus agent, the snowflake crystal nucleus agent is preheated by nano titanium dioxide, and then is improved by an auxiliary liquid, the lanthanum oxide, hydroxyapatite, sodium alginate solution and aluminum dihydrogen phosphate in the auxiliary liquid are coordinated with each other, and the heat insulation, skid resistance and antibacterial property of the system are optimized.

The invention relates to the field of glass products, and particularly discloses a light-weight glass bottle formula and a processing technology thereof. The formula of the light-weight glass bottle comprises 17.3%-19.1% of quartz sand, 4.6%-5.0% of sodium carbonate, 2.9%-3.2% of calcite, 5.0%-5.5% of potassium feldspar, 0.70%-0.85% of a clarifying agent, 0.23%-0.28% of chromium powder, 0.39%-0.47% of mirabilite, 0.009%-0.011% of carbon powder and 63.8%-70.5% of glass particles, wherein the glass particles are particles with the particle size of 5 mm to 20 mm, and the particles are prepared by smashing recycled colorless glass waste and removing impurities. The light-weight glass bottle formula provided by the invention has the advantage of synchronously ensuring the internal pressure strength and the mechanical impact strength of the glass bottle on the premise of realizing the light weight of the glass bottle.

The application discloses a steel plate enamel medium-temperature cobalt-nickel ground glaze free of fluorinated salt and nitrate, a preparation method and application thereof, and belongs to the technical field of enamel. The ground glaze is prepared according to specific mass proportions of quartz, zero-water borax, soda ash, potassium carbonate, calcium carbonate, potassium feldspar, copper oxide, iron oxide and recovered ternary battery positive material iron oxide. The preparation comprises raw material mixing, smelting at 1260±10 DEG C under a pure oxygen environment, and rapid cooling after wire drawing detection of a molten state. The ground glaze completely avoids the use of fluorinated salt and nitrate, eliminates fluorine emission and environmental protection equipment blockage problems from the source, the fluorine content of the product is not detected, and the product meets the limit value requirements of the EU REACH regulation. Meanwhile, by introducing the recovered ternary battery material, the adhesion of the ground glaze is obviously enhanced, the synergistic effect between components is strengthened, other performances are promoted, and resource recycling and cost reduction are realized.

The invention discloses an aluminum oxide proppant and a preparation process thereof, and belongs to the technical field of ceramic fillers. The aluminum oxide proppant is prepared from the following raw materials in parts by mass: 55-72 parts of bauxite; 15 to 25 parts of calcined kaolin; 5 to 10 parts of potassium feldspar; 0.3 to 0.9 part of manganese dioxide; 0.1 to 0.4 part of titanium dioxide; 4-8 parts of a reinforcing agent; the reinforcing agent is formed by mixing co-fired zirconium-based premixed powder and carbonate. The preparation method comprises the following steps: performing conventional wet-process ball-milling to form slurry, performing spray granulation, rolling and forming, performing segmented firing and granulating. According to the scheme, a stable secondary phase is generated in situ between aluminum oxide frameworks in the sintering process, stable zirconium dispersion distribution is achieved, densification and grain boundary stabilization are achieved with low addition amount, the breakage rate under the specified pressure grade is reduced, the acid dissolution rate under the mixed acid condition is reduced, and the product granularity and sphericity are stable.

The application relates to the technical field of ceramic glazes, and particularly discloses a high-stain-resistant ceramic glaze as well as a preparation method and application thereof. The high-stain-resistant ceramic glaze comprises the following raw materials in parts by weight: 30-40 parts of potassium feldspar, 15-25 parts of quartz, 5-15 parts of talc, 7-13 parts of calcium carbonate, 12-18 parts of kaolin, 6-8 parts of a stain-resistant agent, 0.4-0.7 parts of a fluorosilane-based functional material and 0.3-0.5 parts of sodium hexametaphosphate. The stain-resistant agent is expanded kaolin loaded with nano-zinc oxide or expanded kaolin loaded with nano-zinc oxide-rare earth oxide. The application fills glaze layer pores with expanded kaolin loaded with nano-zinc oxide to block the penetration of dirt, and the nano-zinc oxide cooperates with the fluorosilane-based functional material to form a low-surface-energy hydrophobic coating on the glaze surface to reduce dirt adhesion. The kaolin guarantees the uniform dispersion of functional components, and the potassium feldspar and quartz basic components are combined to construct a dense and stable glaze layer, so that the high-stain-resistant performance of the glaze is finally achieved.

The present application relates to the technical field of glaze, and particularly relates to a composite zircon white opal frit, a preparation method thereof, super-white glaze using the composite zircon white opal frit and ceramic tile. The raw materials of the composite zircon white opal frit include, in terms of weight parts, quartz 25-40 parts, calcined alumina 5-10 parts, potassium feldspar 20-35 parts, talc 3-10 parts, calcite 5-10 parts, calcium phosphate 5-10 parts, calcined shell 1-5 parts, zirconium boride 7-15 parts, zirconite sand 3-10 parts, kaolin 1-5 parts and zinc oxide 3-10 parts. The raw materials of the composite zircon white opal frit described above can make the composite zircon white opal frit have a high whitening effect; meanwhile, two cooling and holding processes are adopted in the cooling and holding stage, the content of SiO2, P2O5 and MgO in the chemical composition of the composite zircon white opal frit is adjusted, a large amount of fine needle-like MgSiO3 can be generated, and the opalescence and whiteness of the glaze are improved after the obtained composite opal frit is used in the glaze.

The application discloses a steel plate enamel high-temperature acid-resistant ground enamel free of fluorinated salt and nitrate, a preparation method and application thereof, and belongs to the technical field of enamel. The ground enamel is composed of quartz, titanium white powder, zero-water borax, soda ash, potassium carbonate, calcium carbonate, potassium feldspar, lithium carbonate, copper oxide, iron oxide and recycled ternary battery positive material according to specific mass proportions. The preparation comprises the steps of raw material mixing, high-temperature smelting under pure oxygen condition, wire drawing detection and rapid cooling. The ground enamel is completely free of fluorinated salt and nitrate, avoids fluorine emission and environmental protection equipment blockage problems from the source, the fluorine content of the product is not detected through detection, and the product meets the requirements of the EU REACH regulation. Meanwhile, by introducing the recycled ternary battery material, the adhesion of the ground enamel is obviously enhanced, the synergistic effect between components is strengthened, other performances are promoted, and resource recycling and cost reduction are realized.

The application relates to the field of ceramics, and particularly provides a ceramic glaze capable of releasing negative ions and a preparation method thereof. The ceramic glaze comprises the following components in parts by weight: kaolin 7-9 parts by weight, a negative ion initiator 1-3 parts by weight, potassium feldspar 15-25 parts by weight, quartz 6-9 parts by weight, and a modified porous mixture 3-5 parts by weight. The ceramic glaze is applied to the surface of a ceramic tile, the added negative ion initiator can efficiently initiate the release of negative ions by the glaze, the modified porous mixture has the functions of adsorbing harmful gases and enhancing the negative ion reaction, and the two are compounded, so that the air can be effectively purified, the air quality is improved, and the environmental protection concept of the present age is met.

This invention relates to the field of welding materials technology, and proposes a stainless steel flux-cored welding wire and its preparation method. The stainless steel flux-cored welding wire consists of a flux core and an outer sheath covering the surface of the flux core. The flux core is composed of the following raw materials in weight percentages: rutile 8%~12%, fluorite 4%~6%, cryolite 1%~2%, potassium feldspar 0.1%~0.3%, zircon sand 0.1%~0.5%, metallic aluminum 0.2%~0.4%, metallic magnesium 0.3%~0.6%, metallic silicon 0.5%~1.0%, calcium carbonate 0.5%~1.5%, with the balance being iron powder. The weight percentages must satisfy (rutile + fluorite) / (metallic aluminum + metallic magnesium + metallic silicon) = 9~12. This technical solution solves the problem of insufficient porosity resistance in welds formed by stainless steel flux-cored welding wires in related technologies.

The invention discloses antique ceramic mulberry purple black glaze and a preparation method thereof, and belongs to the technical field of ceramic glaze. The glaze comprises the following components in percentage by mass: basic glaze (40-50% of potassium feldspar, 20-30% of quartz, 10-15% of kaolin and 5-10% of calcite), a composite color former (3-6% of ferric oxide, 2-4% of manganese oxide and 0.1-0.5% of cobalt oxide) and an antique additive (2-5% of bone ash and 1-3% of plant ash). The preparation method comprises the steps of raw material crushing, wet ball milling, glazing, segmented firing and the like. The antique glaze with mulberry fruit characteristic purple black gradient tone and natural silver crystal spots is successfully prepared through the synergistic effect of an iron-manganese-cobalt composite color development system, in combination with regulation and control of natural additives on the microstructure of the glaze, and by adopting a segmented firing process of firstly oxidizing, then reducing and controlling slow cooling. The glaze surface is simple and natural in texture, unique in color development, rich in layer, good in sintering stability and high in yield, and can meet the requirements of art ceramics and archaized artware on high-quality characteristic black glaze.

The application discloses a steel plate enamel low-temperature nickel underglaze without fluorinated salt and nitrate, a preparation method and application thereof, and belongs to the technical field of enamel. The underglaze is prepared from quartz, zero-water borax, soda ash, potassium carbonate, calcium carbonate, potassium feldspar, sodium feldspar, recycled ternary battery positive material and antimony oxide according to specific mass proportions. The preparation comprises raw material mixing, smelting at 1230±10 DEG C under a pure oxygen environment, and rapid cooling after wire drawing detection of the smelting state. The underglaze completely avoids the use of fluorinated salt and nitrate, eliminates the problems of fluoride emission and environmental protection equipment blockage from the source, the fluorine content of the product is not detected, and the limit value requirement of the EU REACH regulation is met. Meanwhile, by introducing the recycled ternary battery positive material, the adhesion of the underglaze is obviously enhanced, the synergistic effect between components is strengthened, other performances are promoted, and resource recycling and cost reduction are realized.

The invention relates to a high-wear-resistance and scratch-resistance frosted glaze slip, a preparation method and a ceramic, and the high-wear-resistance and scratch-resistance frosted glaze slip is applied to a ceramic green body to be fired to form a high-wear-resistance and scratch-resistance frosted glaze ceramic. Comprising the following components: 4.7-10 parts of frit, 29-42 parts of potassium feldspar, 6-12 parts of kaolin, 10-17 parts of modified kaolin, 14-22 parts of first quartz sand, 14-22 parts of a fluxing agent, 7-11 parts of a thermal expansion stabilizer, 6.3-10 parts of a metal powder additive, 6-8 parts of an opacifier and 1-3 parts of a coloring agent. According to the frosted glaze, the surface gloss is considered, the wear resistance and the scratch resistance are remarkably improved, and the compactness is greatly improved, so that the anti-pollution performance can be improved, the problems that the traditional frosted glaze is poor in wear resistance and is easy to scratch when being used in a daily severe environment are solved, and the comprehensive performance is improved.

The jade velvet glaze is prepared from the following raw materials in parts by weight: 20 to 30 parts of modified quartz body, 5 to 15 parts of yttrium oxide complex, 7 to 11 parts of potassium feldspar, 5 to 7 parts of albite, 4 to 6 parts of calcined talc and 3 to 5 parts of kaolin. According to the invention, four different degrees of bright and matte effects on the surface of the ceramic product are successfully realized by precisely regulating and controlling the glazing mode, the glaze layer thickness, the green body surface treatment, the firing temperature, the firing time and other process parameters, and rich decoration choices are provided for consumers.

The application discloses a steel plate enamel high-temperature cobalt-nickel ground glaze free of fluorinated salt and nitrate, a preparation method and application thereof, and belongs to the technical field of enamel. The ground glaze is prepared from quartz, zero-water borax, soda ash, potassium carbonate, trisodium phosphate, potassium feldspar, iron oxide and recycled ternary battery positive electrode material according to specific mass proportions. The preparation comprises raw material mixing, smelting at 1290±10 DEG C under a pure oxygen environment, and rapid cooling after wire drawing detection of the smelting state. The ground glaze completely avoids the use of fluorinated salt and nitrate, eliminates the problems of fluoride emission and environmental protection equipment blockage from the source, the fluorine content of the product is not detected, and the product meets the limit value requirements of the EU REACH regulation. Meanwhile, by introducing the recycled ternary battery material, the adhesion of the ground glaze is obviously enhanced, the synergistic effect between components is strengthened, other performances are promoted, and resource recycling and cost reduction are realized.

This invention discloses a wear-resistant electrical porcelain glaze and its preparation method, belonging to the technical field of electrical porcelain insulators. The method includes the following steps: S1, adding graphene oxide and a surfactant to deionized water, stirring, ultrasonically dispersing for 10-12 hours, centrifuging, collecting the precipitate, and drying to obtain modified graphene oxide; the surfactant modifies the graphene oxide to improve its water dispersibility, allowing it to be uniformly dispersed in water without easily agglomerating or precipitating; S2, thoroughly mixing dried potassium feldspar, sodium feldspar, kaolin, quartz powder, calcined talc, ball clay, barium titanate, modified graphene oxide, and a dispersant by weight to obtain a mixture; S3, adding the mixture to a ball mill for ball milling, iron removal, and aging to obtain the wear-resistant electrical porcelain glaze. The wear-resistant electrical porcelain glaze provided by this invention has excellent wear resistance, and the preparation method is simple and easy to operate, showing good application and promotion prospects.

The potassium feldspar calcining device for the cast iron coating comprises a calcining furnace, the front portion and the rear portion of the calcining furnace are each provided with a material opening, and a base is arranged at the bottom of the calcining furnace; the material cage is movably connected in the calcining furnace and connected with a driving assembly capable of driving the material cage to translate, the material cage is of a box structure, the top and the bottom of the material cage are open, gaps for avoiding the fire-jet heads are formed between the two sides of the material cage and the calcining furnace, and ventilation openings are densely formed in the two sides of the material cage; the two blocking plates are fixedly mounted at the front part and the rear part of the material cage so as to open and close the material opening; the length direction of the first hydraulic cylinder extends in the vertical direction, and the output end of the first hydraulic cylinder faces upwards. By means of the innovative material conveying system and automatic control, the potassium feldspar calcining efficiency is remarkably improved, the problems that in a traditional technology, material loading and unloading are tedious, and continuous production is difficult are solved, and an efficient calcining solution is provided for the cast iron coating industry.

The invention provides a concentrated solar furnace pre-sintered wollastonite tailing ceramic rock plate and a preparation method thereof. The preparation method comprises the following steps: performing crushing and ball milling treatment on wollastonite tailings, putting the wollastonite tailings in a concentrated solar furnace for pre-sintering at the pre-sintering temperature of 700-800 DEG C and the heat preservation time of 10-15 minutes, and cooling to obtain pre-sintered wollastonite tailings; carrying out ball milling treatment to obtain wollastonite powder; mixing and ball-milling with Suzhou kaolin, potassium feldspar, albite, quartz and a light absorbing agent to obtain a blank; performing granulation, aging and compression molding to obtain a green body; the green body is dried and then placed in a concentrating solar furnace to be sintered, the sintering temperature ranges from 920 DEG C to 1000 DEG C, the heat preservation time ranges from 10 min to 15 min, and the ceramic rock plate is obtained after furnace cooling. The solar furnace is used for pre-sintering and activating the wollastonite tailings, then the wollastonite tailings and other raw materials are mixed and sintered, solar energy is used in the whole process, low-temperature rapid sintering is achieved, and it is ensured that the rock plate has high density and high strength.

The present application relates to the field of microbial technology, and particularly relates to a strain of Helman atlantic bacillus and application thereof Atlantibacter hermannii , the classification and naming of which is Helman atlantic bacillus, the preservation unit is China General Microbiological Culture Collection Center, the preservation number is CGMCC No. 36680, and the preservation time is November 19, 2025. The potassium-dissolving strain can activate potassium-containing minerals such as biotite, muscovite and potassium feldspar in soil, release solid potassium therein, and convert the solid potassium into slow-release potassium and readily available potassium for plants to absorb, thereby significantly improving the potassium condition of soil and ensuring long-term supply of potassium nutrients.

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 present application discloses a glaze paste for preparing a kiln glaze surface and a preparation method of the kiln glaze surface. The raw materials of the glaze paste include 42 parts of potassium feldspar, 7 parts of Suzhou soil, 5 parts of quartz, 0-8 parts of calcite, 9 parts of zinc oxide, 6.2 parts of titanium white, 25 parts of frit, 7 parts of barium carbonate, 1.4 parts of copper oxide and 2 parts of cobalt oxide 3 . The present application utilizes the principle that titanium has poor opacifying effect when the calcium content is low, and the reaction produces a glaze surface with kiln effect. When the calcium content is moderate, the glaze surface has good gloss; when the calcium content is low, the glaze surface has poor gloss and is even matt or non-luster, and the color changes to black brown; when the calcium content is high, the glaze surface is green. By controlling the fineness of the glaze paste, the glaze surface firing quality is ensured; by controlling the spraying thickness of the glaze layer, the kiln effect of the glaze surface color is ensured. The thermal stability, microwave oven test and lead and cadmium dissolution amount can all meet the standard of daily tableware.