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159 results about "Sodium polymetaphosphate" patented technology

Sodium hexametaphosphate (SHMP) is a hexamer of composition (NaPO3)6. Sodium hexametaphosphate of commerce is typically a mixture of polymeric metaphosphates, of which the hexamer is one, and is usually the compound referred to by this name. It is more correctly termed sodium polymetaphosphate.

Inorganic normal-temperature rapid-hardening coal-rock mass reinforcing and filling material

The invention discloses an inorganic normal-temperature rapid-hardening coal-rock mass reinforcing and filling material, and relates to the technical field of mine reinforcement. The material comprises a liquid A and a liquid B, the liquid A is prepared from cement, fly ash, magnetic nano silicon dioxide, citric acid and a layered bimetal oxide-sodium hexametaphosphate compound; and the liquid B comprises water glass, superfine limestone and water. During use, the liquid A and the liquid B are mixed according to the volume ratio of 1: 1 and injected into a target area, and a 1.5 Tesla magnetic field is applied at the initial stage of grouting until the grout is initially set. Through the synergistic effect of the compound protection dispersing agent, the magnetic particles and an external magnetic field, the technical problems that an existing material is unstable in performance due to temperature change, nanoparticles are prone to agglomeration, and magnetic response is attenuated in an alkaline environment are effectively solved; the technical effects of rapid solidification, high strength and excellent durability in high-temperature, low-temperature and complex mine environments are achieved.
Owner:XUZHOU ANYUN MINING TECH

Molybdenum-aluminum-niobium etching solution for TFT-LCD and preparation method of molybdenum-aluminum-niobium etching solution

The invention relates to the technical field of etching solutions, and discloses a molybdenum-aluminum-niobium etching solution for a TFT-LCD (Thin Film Transistor Liquid Crystal Display), which comprises the following components in percentage by mass: 50 to 60 percent of phosphoric acid, 3 to 8 percent of nitric acid, 5 to 10 percent of glacial acetic acid, 1 to 5 percent of aluminum nitrate, 0.1 to 0.5 percent of diphenyl thiourea, 1 to 5 percent of etidronic acid, 3.0 to 5.0 percent of sodium hexametaphosphate, 0.1 to 0.2 percent of fatty alcohol-polyoxyethylene ether, 0.5 to 0.8 percent of amino trimethylene phosphonic acid and the balance of ultrapure water. The invention further discloses a preparation method of the molybdenum-aluminum-niobium etching solution. According to the invention, a phosphorus nitrate vinegar system, a composite additive, a novel corrosion inhibitor, a metal ion chelating agent and a surfactant matched with the etching liquid are adopted, so that the molybdenum-aluminum-niobium multi-layer composite metal film can be simultaneously etched at one time; the etching solution has the advantages of being uniform in etching, capable of inhibiting Mo / Nb etching, high in selectivity, controllable in etching rate, free of residues, long in service life, high in stability and the like.
Owner:SUZHOU BOYANG CHEM

Lithium cross-linked synanthrin, preparation method thereof and application of lithiated cross-linked synanthrin in organic / inorganic composite solid electrolyte

The invention discloses lithiated cross-linked synanthrin, a preparation method thereof and application of the lithiated cross-linked synanthrin in an organic / inorganic composite solid electrolyte, and relates to the technical field of polymers and solid electrolytes. The lithiated cross-linked synanthrin provided by the invention is prepared by taking sodium hexametaphosphate and the like as a cross-linking agent to cross-link synanthrin and then adding lithium salt to lithiate the cross-linked synanthrin in an ion exchange manner, so that the stability of an organic / inorganic interface in an organic / inorganic composite solid electrolyte can be improved; the composite strength of the organic electrolyte and the inorganic electrolyte is improved, and meanwhile, the three-dimensional cross-linked structure can introduce an additional lithium ion transmission channel into an electrolyte matrix. Based on this, the composite electrolyte prepared by the invention can have significantly improved ionic conductivity and a wider electrochemical window.
Owner:GANJIANG INNOVATION ACAD CHINESE ACAD OF SCI

Layered silicate gangue inhibitor for fine copper ore flotation and preparation method thereof

The application discloses a layered silicate gangue inhibitor for fine-grained copper ore flotation and a preparation method thereof. The inhibitor is composed of the following components: modified polysaccharide organic polymer 15-30%, sodium hexametaphosphate 10-30%, acrylic acid 7-15%, acrylamide 1-5%, ammonium persulfate 2-5%, hydroxyethylidene diphosphonic acid 5-15%, aluminum sulfate 2-5%, and deionized water in a residual amount. The preparation method comprises the following steps: mixing modified polysaccharide and deionized water according to a mass ratio of 1:1-1:2 to prepare solution A; polymerizing acrylic acid and acrylamide to prepare solution B; mixing solution A and solution B, and adding a formula amount of sodium hexametaphosphate to react; then adding a formula amount of hydroxyethylidene diphosphonic acid and a formula amount of aluminum sulfate to carry out complex adjustment; and finally, aging, filtering and obtaining the product. The inhibitor has a strong selective inhibiting effect on talc, phlogopite and other layered silicate gangues, can significantly improve the copper concentrate grade and recovery rate, has a small dosage, is non-toxic and environment-friendly, and can be biodegraded.
Owner:NORTHWEST RES INST OF MINING & METALLURGY INST

High-flow self-compacting fluidified soil and its preparation process

The present application relates to the field of fluidized solidified soil, and discloses a kind of high-flow self-compacting fluidized solidified soil and its preparation process, including dry base engineering slag soil, mixing water, sodium hexametaphosphate, L (+) -tartaric acid, composite cementitious material, warm rubber dry powder and isoamyl alcohol polyoxyethylene ether polycarboxylic acid water reducing agent are made.The composite cementitious material is premixed with warm rubber dry powder;Slag soil is mixed with water and sodium hexametaphosphate to disperse internal mud group;Under continuous stirring, add tartaric acid aqueous solution, control the drop amount by using real-time monitoring of liquid phase pH value and closed-loop mechanism of tartaric acid consumption ratio, neutralize alkaline and inhibit early hydration heat release of cementitious material;Finally, add powder and water reducing agent for secondary stirring, and discharge and pour when liquid phase pH value jumps.The present application overcomes the hydration out of control caused by the fluctuation of different slag components through chemical synergy and dynamic feeding feedback of multiple components, avoids settlement stratification and bleeding, and ensures the stable development of high-flow state and later mechanical strength of slurry.
Owner:JIANGSU RUI AOPU ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Low-thermal-conductivity multilayer composite magnesio-hercynite brick and preparation method thereof

ActiveCN119100758BEpoxyAl powder
This invention belongs to the field of refractory materials technology, specifically relating to a low thermal conductivity multilayer composite magnesium-iron-aluminum spinel brick and its preparation method. This invention uses 4-ethoxyphenylboronic acid as a modifier to introduce borate ester groups onto the surface of phenolic resin hollow microspheres, obtaining borate ester-modified phenolic resin hollow microspheres. An epoxy-based silicone resin is prepared using organosilicon resin and epoxy silane. Then, the epoxy-based silicone resin is used to modify alkaline silica sol, introducing organic polymers onto the particle surface to obtain modified silica sol. The modified silica sol is then mixed with sodium hexametaphosphate to obtain a composite binder. This invention combines high-purity magnesia, fused magnesia, fused iron-aluminum spinel, α-Al₂O₃ micropowder, metallic iron powder, metallic aluminum powder, a composite binder, and borate ester-modified phenolic resin hollow microspheres to prepare a multilayer composite magnesium-iron-aluminum spinel brick with low thermal conductivity, excellent mechanical properties, high-temperature resistance, and corrosion resistance.
Owner:ZHENGZHOU RUITAI REFRACTORY MATERIALS TECH CO LTD

High-strength anti-stripping industrial kiln castable and preparation method thereof

ActiveCN121494590BPorositySodium phosphates
The application belongs to the technical field of refractory materials, and particularly relates to high-strength anti-stripping industrial kiln castable and a preparation method thereof. The industrial kiln castable provided by the application comprises white corundum, modified corundum, petalite, composite micropowder, modified micropowder, a binder and sodium hexametaphosphate. The white corundum, the modified corundum and the petalite are used as aggregates of the kiln castable, the composite micropowder and the nano micropowder are added to fill the aggregate gaps, and the porosity of the castable is reduced. The titanium dioxide is used to dope the corundum to form a solid solution, and a silica ceramic layer is coated on the surface of the nano titanium diboride by using a sol-gel method, so that the interface bonding force between the nano titanium diboride and the matrix is strengthened, the rigid reinforcing points are increased, and the high-temperature compressive strength is improved.
Owner:SHANDONG LUMING NEW MATERIALS

A high collar fabric, a post-finishing process thereof and a garment comprising the high collar fabric

This invention relates to a high-necked fabric, its finishing process, and garments containing the high-necked fabric. The finishing process includes the following steps: drying and sieving washed leaves and branches of *Nelumbo nucifera* to obtain dried material; subjecting the dried material to pyrolysis treatment; cooling and grinding to obtain *Nelumbo nucifera* biochar; the raw materials for preparing the finishing reagent, by weight, include 15-25 parts of aqueous polyurethane emulsion, 6-12 parts of *Nelumbo nucifera* biochar, 4-8 parts of hydroxyl silicone oil, 1-3 parts of citric acid, 3-8 parts of nano-titanium dioxide, 2-5 parts of chitosan quaternary ammonium salt, 1-3 parts of silane coupling agent, 1-2 parts of fatty alcohol polyoxyethylene ether, 1-3 parts of sodium hexametaphosphate, 1-5 parts of acetic acid, and 50-60 parts of deionized water. The high-necked fabric of this invention has good abrasion resistance, waterproof performance, and antioxidant properties, and can be used for the collars or cuffs of down garments and sportswear, with broad market application prospects.
Owner:GAOFAN (ZHEJIANG) INFORMATION TECH CO LTD

Copper-molybdenum bulk concentrate flotation separation combined inhibitor and application thereof

The invention discloses a copper-molybdenum bulk concentrate flotation separation combined inhibitor and application thereof, and belongs to the technical field of mineral flotation separation. The combined inhibitor is formed by mixing isomaltose and sodium hexametaphosphate. The method for using the combined inhibitor for flotation separation of the copper-molybdenum bulk concentrate specifically comprises the steps that the copper-molybdenum bulk concentrate is subjected to scrubbing, reagent removal and pulping; a combined inhibitor, a collecting agent and a foaming agent are sequentially added into the ore pulp, primary roughing is conducted, and roughing concentrate and roughing tailings are obtained; the roughing concentrate is subjected to three times of concentration, a combined inhibitor is supplemented in each time of concentration, and copper concentrate is obtained; and the roughing tailings are subjected to two times of scavenging, the collecting agent is supplemented in each time of scavenging, and molybdenum concentrate is obtained. According to the method, the floatability difference of the copper ore and the molybdenum ore is enlarged by inhibiting molybdenum and floating copper, the use of high-toxicity agents can be reduced, meanwhile, copper can be efficiently recycled, the grade of molybdenum concentrate can be guaranteed, and good environmental compatibility and industrial application prospects are achieved.
Owner:KUNMING UNIV OF SCI & TECH

Plastic refractory for LF (ladle furnace) and production method of plastic refractory

The invention discloses an LF refining furnace plastic refractory and a production method thereof, and relates to the technical field of plastic manufacturing. The LF refining furnace plastic refractory is prepared from the following components in parts by weight: 60-75 parts of seawater magnesia particles, 5-8 parts of seawater magnesia ultrafine powder, 5-8 parts of an aluminum sulfate solution, 4-8 parts of acetylated castor oil, 5-8 parts of east mud, 1-3 parts of spodumene, 2.5-3.5 parts of ammonium magnesium phosphate whiskers, 1-2 parts of liquid raw molasses, 2-4 parts of silica fume, 1-2 parts of amino phenolic resin powder, 1-1.5 parts of sodium hexametaphosphate and 0.5-1 part of British glue. According to the plastic refractory for the LF refining furnace, the seawater magnesia particles with specific particle size distribution serve as aggregate, close packing and basic fire resistance of the material are ensured, the seawater magnesia ultrafine powder and the ammonium magnesium phosphate whiskers are matched, the high-temperature breaking strength and toughness of the material are improved, and the final product has excellent plasticity.
Owner:YINGKOU QINGHUA GRP

N-acetylneuraminic acid fermentation method capable of reducing fermentation byproducts

The invention relates to an N-acetylneuraminic acid fermentation method capable of reducing fermentation byproducts, and belongs to the technical field of fermentation. Escherichia coli is used as a chassis strain for fermentation synthesis of N-acetylneuraminic acid, sodium hexametaphosphate is added in the fermentation process to reduce generation of byproducts in the synthesis process of N-acetylneuraminic acid, and fermentation conditions are further optimized to improve the synthesis yield of N-acetylneuraminic acid. According to the fermentation method, the N-acetylneuraminic acid can be efficiently synthesized, the yield of the N-acetylneuraminic acid is increased, meanwhile, by-products difficult to separate are reduced, and a technical basis is provided for subsequent fermentation amplification and industrial production of the N-acetylneuraminic acid.
Owner:嘉兴未来食品研究院 +1

A method for preparing kaolin with high whiteness at high yield by using coal gangue

This invention discloses a method for preparing high-whiteness kaolin using coal gangue with high yield, belonging to the field of high-value utilization technology of solid waste. The method involves crushing coal gangue, mixing and grinding it with oligosaccharides and water to obtain a slurry. The slurry is then filtered and dried to obtain powder. The powder is calcined and then vibrated to obtain more powder. Water is added to the powder to form a slurry, and sodium hydroxide, sodium hexametaphosphate, and sodium lignosulfonate are added sequentially under strong stirring to obtain another slurry. The slurry is then subjected to magnetic separation to remove iron and calcined in air to obtain kaolin. This method achieves high-yield purification of kaolin, with a yield exceeding 90%, and reduces the Fe content in the kaolin to below 0.25%, achieving a calcined whiteness of over 96%. The process is also simple and suitable for industrial production.
Owner:CENT SOUTH UNIV

A composite disinfectant and a method for preparing the same

The application belongs to the technical field of disinfection, and discloses a composite disinfectant and a preparation method thereof. The disinfectant is composed of potassium hydrogen persulfate, urea peroxide, sodium percarbonate, sodium hexametaphosphate, sodium citrate, ethylenediaminetetraacetic acid disodium, sulfamic acid, sodium dodecyl benzene sulfonate, fatty alcohol polyoxyethylene ether, cocamidopropyl betaine, nano manganese dioxide, nano silicon dioxide, nano zinc oxide, sodium carboxymethyl cellulose, polyethylene glycol 6000, amaranth red, sodium chloride and a residual amount of anhydrous sodium sulfate, and is prepared through a feeding, mixing and granulating process. The application is suitable for disinfection in multiple scenes, has high safety and a simple preparation process, and is suitable for large-scale industrial production.
Owner:HUBEI JINGRUI TIANHENG BIOTECHNOLOGY CO LTD

Highly stain-resistant ceramic glaze and preparation method and application thereof

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.
Owner:NGY COLOUR WUHAN

A process for the catalytic preparation of D-mannose

The method for catalytically preparing D-mannose provided in the application can effectively reduce the amount of by-products glucose and fructose, and greatly improve the conversion rate of D-mannose. Specifically, the engineering bacteria expressing isoamylase gene and the engineering bacteria expressing alpha-glucan phosphorylase gene, glucose phosphomutase gene, bifunctional enzyme glucose phosphate isomerase / mannose 6-phosphate isomerase gene and mannose 6-phosphate phosphatase gene are used, starch or starch derivatives are used as substrates, phosphate buffer solution and Mg 2+ A preliminary catalytic system is constructed, and after the reaction is completed, there are unreacted substrates and maltodextrin in the reaction system, the saccharifying enzyme can hydrolyze the unreacted substrates and maltodextrin into glucose, the polyphosphate glucose kinase can convert all the glucose into phosphorylated glucose with the assistance of sodium hexametaphosphate, and then D-mannose is generated, thereby improving the yield and removing the by-products in the system.
Owner:BINZHOU SANYUAN BIOLOGICAL TECH

Nano-silver sustained-release particles, preparation method and self-cleaning mask atomizer

The application discloses a kind of nano silver slow-release particles, preparation method and self-cleaning mask atomizer, the nano silver slow-release particles are made of 0.1% to 5% silver powder, 20% to 50% sodium hexametaphosphate, 30% to 50% calcium acetate, 1% to 10% zinc oxide and 10% to 20% polyacrylic acid sodium composition.The nano silver slow-release particles of the application can release silver ions in the nano material in water body, with the advantages of drinking safety, persistent antibacterial and the like.The nano silver slow-release particles are fixed in the mask atomizer, the nano silver slow-release particles can release ppb level concentration of silver ions in water body or liquid, and the silver ion-containing bacteriostatic water body can efficiently clean and bacteriostatic treatment of atomizing cup, mask, atomizing device and connecting piece, and can also be drunk or inhaled by people along with the atomization process.Meanwhile, the bacteriostatic water body does not cause damage to the atomization function of the atomizing device, and the silver ions remaining on the surface after washing the mask atomizer with clean water can also keep the atomizing equipment clean for a long time, and the practicability is better.
Owner:SHENZHEN UNIV

A medicinal and edible compound fruit and vegetable drink

The present application relates to the technical field of food processing, and discloses a kind of medicine food homologous compound fruit and vegetable drinks, the drink is made of the following weight percentage of raw materials: acacia honey 9~11%, roxburgh hawthorn original syrup 2~4%, sea buckthorn original syrup 8~10%, Chinese wolfberry original syrup 6~8%, mulberry original syrup 2~4%, blueberry original syrup 4~6%, arabic gum 0.03~0.15%, sodium hexametaphosphate 0.02~0.04%, high acyl gellan gum 0.05~0.08%, beta-cyclodextrin 0.05~0.30%, and the balance of the system is supplemented with crown pear juice, wherein the acacia honey and the roxburgh hawthorn original syrup are premixed to form a honey fruit pre-complexing liquid. The present application isolates the substrate through pre-complexing and inclusion process, slows down the cross-linking precipitation and oxidation browning of medicine food homologous components, improves the defect of easy stratification of compound fruit and vegetable material liquid, and ensures the structural stability of the drink.

Nanometer tempering agent and preparation method thereof

The application relates to the technical field of ceramicizing agents, in particular to a nano ceramicizing agent and a preparation method thereof. The nano ceramicizing agent is prepared from the following raw materials in parts by weight: 0.5-4 parts of a silane coupling agent, 0.4-4 parts of a titanate coupling agent, 1-10 parts of a zirconium salt, 3-5 parts of an alcohol solvent, 0.5-2 parts of nitric acid or a nitrate, 0.2-2 parts of modified nano clay, 0.01-0.03 parts of sodium hexametaphosphate, 1-5 parts of hydrogen peroxide, 0.1-0.5 parts of sodium lactate, and 60-80 parts of deionized water or tap water. The silane coupling agent and the titanate coupling agent are used as the basis of the ceramicizing agent, a protective film with good protection performance is formed on the metal surface, the zirconium salt chemically reacts with the metal base layer, so that a dense electrochemical protection passivation layer is formed on the metal surface, the adhesion of the film layer is improved, the use of fluorides is reduced through the addition of the modified nano clay, and the environmental protection performance of the product is further improved.
Owner:CHANGZHOU JUNHE TECH

High-dispersity talcum powder and preparation method thereof

The invention belongs to the technical field of talcum powder. The invention provides high-dispersity talcum powder and a preparation method thereof.The preparation method comprises the following steps that S1, zirconium oxide beads are adopted as a grinding medium, the grinding medium and grinding materials are added into a charging barrel of a vertical sand mill, the grinding materials comprise talcum powder raw materials, carboxymethyl cellulose graft copolymers and sodium hexametaphosphate, the rotating speed is adjusted to be 9.5 m / s, the grinding time is 3-12 h, and a mixture is obtained; grinding to obtain ground powder; s2, adding an aqueous dispersion into the ground powder obtained in the S1, and adjusting the rotating speed to 9.5 m / s and the grinding time to 8-36 hours to obtain ground slurry; and S3, drying and crushing the ground slurry obtained in the S1 to obtain the high-dispersity talcum powder. The carboxymethyl cellulose grafted copolymer is added into the grinding material, so that the viscosity of grinding slurry is reduced, and meanwhile, the dispersity of talcum powder particles is improved.
Owner:LIAONING AIHAI TALC CO LTD

High and steep slope soil aggregate modifier based on carbon component and preparation method thereof

The invention provides a high and steep slope soil aggregate modifier based on a carbon component and a preparation method thereof, and belongs to the field of soil improvement and ecological restoration, and the modifier comprises the following raw materials: a granular organic carbon source, a mineral binding organic carbon source, a nanometer and microbial stabilizer and the like. A preparation method of the modifier comprises the following steps: mixing the humic acid, the leaf mold and the pine needle mulch, putting the mixture into a sodium hexametaphosphate solution, reacting, drying, and grinding to obtain the mineral bound organic carbon source; the preparation method comprises the following steps: uniformly mixing a granular organic carbon source, a mineral combined organic carbon source, nano CaCO3, a microbial stabilizer and the like, adding water, fermenting to obtain a fermentation product, drying, and crushing to obtain the modifier. According to the modifier, through the synergistic effect of multiple components, the ecological function of high and steep slope degraded soil is effectively recovered, the aggregate structure stability of the improved soil can be improved, and the long-term stability of aggregates and the organic carbon storage capacity are enhanced.
Owner:BEIJING FORESTRY UNIVERSITY +2

A retarder for magnesium silicate cementing material and a preparation and application method thereof

This invention discloses a retarder for magnesium silicate cementitious materials and its preparation and application methods, belonging to the field of green building materials technology. The retarder of this invention is composed of sodium hexametaphosphate, citric acid, and tartaric acid in a mass ratio of (1-3):(2-4):(0.5-2). The retarder of this invention forms a three-level gradient synergistic retarding effect by using sodium hexametaphosphate to inhibit the rapid dissolution of active magnesium oxide, citric acid to chelate and regulate the magnesium ion concentration in the liquid phase, and tartaric acid to inhibit the nucleation and growth of hydration products, covering the entire hydration process of magnesium silicate cementitious materials. This invention also discloses the preparation and application methods of this retarder. Compared with existing technologies, the retarder of this invention can significantly extend the setting time of magnesium silicate cementitious materials while maximizing the preservation of their mechanical properties and improving slurry fluidity. Furthermore, the raw materials are widely available, the preparation process is simple, and the cost is controllable, showing good prospects for industrial application.
Owner:JIAHUA SPECIAL CEMENT

Food-grade cutting fluid for glass processing and preparation method thereof

The invention relates to the technical field of glass processing, in particular to food-grade cutting fluid for glass processing and a preparation method of the food-grade cutting fluid. The lubricating oil is prepared from the following raw materials in percentage by weight: 50-60% of food-grade base oil, 10-15% of a food-grade lubricant, 3-8% of a food-grade auxiliary stabilizing material and the balance of water, the food-grade auxiliary stabilizing material is composed of a 1, 3-dihydroxy acetone dimer, an emulsion stabilizer, an adsorption stabilizer and an enhancement and protection stabilizer; the emulsion stabilizer is emulsified calcium stearate dispersion liquid and / or sodium polyphosphate; the adsorption stabilizer is a composition of multiple of magnesium trisilicate, food-grade diatomite and food-grade activated clay; the reinforcing and protecting stabilizer is calcium alginate and / or food-grade titanium dioxide, food-grade raw materials are adopted, and the glass cutting agent has a good cutting effect and good quality stability when being used for glass processing.
Owner:DONGGUAN SOLA LUBRICATING OIL TECH CO LTD

High-strength wear-resistant refractory castable and preparation method thereof

The invention relates to a high-strength wear-resistant refractory castable and a preparation method thereof. According to the technical scheme, alpha-activated aluminum oxide micro powder, silicon carbide micro powder, silicon dioxide micro powder and white corundum micro powder are added into a ball milling tank to be subjected to ball milling and screened, and premixed powder with the particle size smaller than 45 micrometers is obtained; the preparation method comprises the following steps: carrying out ball milling on sodium tripolyphosphate, sodium hexametaphosphate, FDN, lithium chloride micro powder and aluminate cement to obtain premixed cement; the preparation method comprises the following steps: adding alumina particles with the particle size of 3-5mm, alumina particles with the particle size of 1-3mm and alumina particles with the particle size of less than 1mm into a stirring pot, and carrying out dry mixing to obtain the premixed aggregate. Adding the premixed cement and the premixed powder into the premixed aggregate, then adding steel fibers, and continuously performing dry mixing to obtain the high-strength wear-resistant refractory castable. The high-strength wear-resistant refractory castable prepared by the invention has the characteristics of high compression strength, excellent high-temperature wear resistance, high medium-temperature strength and controllable hydration process.
Owner:WUHAN UNIV OF SCI & TECH

Petroleum fracturing propping agent prepared from solid waste and preparation method of petroleum fracturing propping agent

The invention discloses a petroleum fracturing proppant prepared from solid waste and a preparation method thereof, and relates to the technical field of petroleum fracturing proppants, and the proppant comprises the following raw materials: accumulated bauxite ore washing slime, fly ash, high-grade bauxite, bentonite, an organic binder, magnesium slag, manganese mineral powder, sodium hexametaphosphate, chromic oxide and the like. According to the invention, the slime generated by washing accumulated bauxite and fly ash are used as main raw materials, a certain amount of high-grade bauxite is added to increase the content of alumina in the material, and the petroleum fracturing propping agent with good performance is prepared on the basis of realizing comprehensive utilization of waste materials. According to the invention, the manufacturing cost of the petroleum fracturing propping agent is reduced, a new thought is provided for recycling solid wastes such as bauxite slime and fly ash, and a low-pollution, low-carbon and economical production process is realized.
Owner:KUNMING METALLURGY COLLEGE

A lightweight wall panel made of furnace bottom slag and its preparation method

PendingCN122301525ACompressive resistanceSlag
This invention relates to the field of building materials technology, and in particular to a lightweight wall panel made from furnace bottom slag and its preparation method. The lightweight wall panel, by weight, comprises the following raw materials: 95-130 parts of slurry A, 15-30 parts of mineral powder, 5-10 parts of light-burned magnesia, 5-15 parts of soda ash, 0.5-1 parts of air-entraining agent, and 0.5-1 parts of foam stabilizer. Slurry A comprises the following raw materials: 90-120 parts of furnace bottom slag, 10-15 parts of light-burned magnesia, 0.5-1 parts of sodium hexametaphosphate, and 1.5-3 parts of water-reducing agent. This invention addresses the problems of current lightweight wall panels made from furnace bottom slag requiring cement, resulting in high costs, and the low density and poor compressive strength of existing lightweight wall panels.
Owner:FOSHAN DONGPENG CERAMIC +3

Low-salt fermented soybean paste production process based on temperature control by section

The application relates to the field of food biotechnology, and discloses a low-salt bean paste production process based on segmented temperature control fermentation, which is made of fava bean koji, water, edible salt, sodium hexametaphosphate, lactococcus lactis nisin, edible alcohol, granulated coarse granular calcium carbonate and glucono-delta-lactone. The production process comprises the following steps: constructing a composite matrix, and first performing buffer-type medium-temperature enzymolysis; then adding a glucono-delta-lactone aqueous solution in a flow manner, utilizing the stoichiometric coupling reaction of the glucono-delta-lactone aqueous solution and the granulated coarse granular calcium carbonate to generate carbon dioxide in situ to construct a micropore structure and regulate the pH value of the system; and finally, connecting a Zygosaccharomyces rouxii to perform low-temperature aroma-producing after-ripening. Through the synergistic effect of the components, the application effectively solves technical problems in the low-salt fermentation process, such as low protein solubility, easy compaction of the matrix and breeding of miscellaneous bacteria, and improves the amino acid nitrogen content and protein hydrolysis rate of the finished product.
Owner:SICHUAN DANDAN PIXIAN BEAN PASTE GRP CO LTD

Antistatic treatment equipment for socks

The utility model discloses anti-static treatment equipment for socks, which relates to the technical field of sock processing and comprises a main body, a plurality of sliding grooves are formed in the top end of the interior of the main body, sliding blocks are connected in the sliding grooves in a sliding manner, and a plurality of sleeving molds are mounted on the bottom surface of each sliding block. A plurality of holes are formed in the surface of each sleeving mold, a liquid spraying device is installed in the middle of the interior of the main body, and nozzles of the liquid spraying device are distributed on the two sides of each sleeving mold. Sodium hexametaphosphate solution flows out of the holes of the sleeving mold so as to infiltrate the whole sock, the sock can be completely infiltrated and the solution can be saved by a diffusion type soaking method starting from the inside, and the softener is sprayed to the surface of the sock by the liquid spraying device, so that the sock is still soft after being treated, and the sock is not damaged. Moreover, the softener can form a layer of protective film to limit electrostatic eliminating components in the socks, so that the durability of the antistatic performance of the socks is improved.
Owner:HAINING YULI SOCKS

Lightweight high-heat-resistance high-wettability lithium battery diaphragm and preparation method thereof

The invention discloses a light-weight lithium battery diaphragm with high heat resistance and high wettability and a preparation method thereof.The light-weight lithium battery diaphragm with high heat resistance and high wettability comprises a base membrane and a coating on the base membrane, and the coating comprises porous aluminum oxide, carboxymethylated nanocellulose, acetylated nanocellulose, polyurethane, sodium hexametaphosphate and ammonium polyacrylate; the porous aluminum oxide, the carboxymethylated nanocellulose, the acetylated nanocellulose, the polyurethane, the sodium hexametaphosphate and the ammonium polyacrylate cooperate to improve the liquid absorption rate, the liquid retention rate, the peel strength, the ionic conductivity, the heat resistance and the wettability of the diaphragm, and meanwhile, the water content of the diaphragm is reduced. The density of the porous aluminum oxide, the carboxymethylated nanocellulose and the acetylated nanocellulose is relatively low, so that the diaphragm is light in weight.
Owner:HEBEI GELLEC NEW ENERGY MATERIAL SCI&TECHNOLOY CO LTD

Construction method and application of super-amphiphilic molecular nanoparticles under high solid condition

The invention discloses a preparation method and application of super-amphiphilic molecular nanoparticles under a high solid condition, and belongs to the technical field of biology. The preparation method comprises the following steps: preparing a high-concentration curcumin-cyclodextrin inclusion compound by combining a heating stirring method with ultrasound; adding the inclusion compound into a high-concentration alkalized sodium caseinate solution, and continuously adding food-grade sodium hydroxide to maintain the pH value of the system; performing ultrasonic treatment on the mixture, acidifying, performing high-pressure homogenization, centrifuging, adding maltodextrin, and performing spray drying to obtain the curcumin nanoparticles. And redissolving the obtained nanoparticles, and adding sodium erythorbate, sodium hexametaphosphate, sucrose and polyglycerol fatty acid ester to obtain the beverage. According to the powder prepared by the method, the content of super-amphiphilic molecule solids is remarkably increased, so that the cost of large-scale spray drying is reduced; the beverage obtained by redissolving has relatively good physical and chemical stability and shelf life.
Owner:OCEAN UNIV OF CHINA +1

Repair material for alumina ceramic fiber refractory product and preparation method thereof

The invention belongs to the field of alumina ceramic fiber refractory materials, and particularly relates to an alumina ceramic fiber product inorganic repairing material and a preparation method thereof. The composite material comprises washed cotton fibers, aluminum oxide, white carbon black, talcum powder, zirconium oxide, boron nitride, sodium hexametaphosphate and an inorganic binder, and the inorganic binder comprises clay mineral powder and thixotropic colloid formed by a silica sol aqueous solution and sodium tripolyphosphate. According to the technical scheme provided by the invention, an inorganic clay raw material is used as a normal-temperature binder, and sodium tripolyphosphate and alkaline silica sol composite colloid are used for replacing inorganic glue of methyl cellulose and a single silica sol aqueous solution, so that on one hand, the phenomena of organic substance volatilization and surface carbonization blackening of the organic binder during low-temperature sintering after repairing can be avoided; and more importantly, the hardness of the sintered repairing material is very close to that of a matrix, so that the phenomena of layering of the repairing material and a product, pulverization and peeling after sintering caused by material hardness difference are avoided.
Owner:XINYANG ZHONGYI HIGH HEAT MATERIAL CO LTD