19 results about "Sodium metasilicate" patented technology

The present application belongs to the technical field of cleaning supplies, and particularly relates to a high-efficiency blood-stain removing powder and a preparation method thereof. The high-efficiency blood-stain removing powder provided by the present application comprises the following raw materials and mass fractions: 45.0-65.0 parts of sodium percarbonate, 12.0-18.0 parts of an auxiliary agent, 11.0-18.0 parts of an auxiliary cleaning agent, 4.0-7.0 parts of anhydrous sodium metasilicate, 1.0-3.0 parts of a non-ionic surfactant, 1.5-2.5 parts of an enzyme preparation, 0.2-1.0 parts of an antibacterial agent, 1.0-3.0 parts of a thickening agent, and 0.1-0.5 parts of a fragrance; the auxiliary cleaning agent is composed of sodium carbonate and sodium alpha-alkenyl sulfonate at a mass ratio of 8.0-12.0:3.0-6.0. When the high-efficiency blood-stain removing powder of the present application is used, no complex operation is needed, and blood stains can be easily removed through simple soaking, without laborious scrubbing, so that the effect of 'quick cleaning and complete stain removal' is truly achieved.

The application discloses a tundish slag line dry material, and relates to the technical field of tundish refractory materials. The mass percentage of each raw material component in the tundish slag line dry material is as follows: 26-30% of 3-1mm fused magnesite, 22-28% of 1-0mm fused magnesite, 20-27% of 200-mesh fused magnesite, 1.5-2% of trisodium phosphate hexahydrate, 2-2.5% of sodium metasilicate nonahydrate, 1-1.5% of adipic acid, 4-5% of calcium carbonate, 0.3-0.5% of vermiculite, and the rest of 5-3mm fused magnesite. The application adopts a new composite binder system, solves the environmental protection problem of a traditional phenolic resin binder, and significantly improves the medium-temperature and high-temperature strength, corrosion resistance, thermal shock resistance and heat insulation performance of the magnesia dry material through the synergistic effect among the components, so that the overall optimization of the material performance is realized.

The present application relates to the field of chemical material environmental protection technology, and particularly to a method for preparing nine-water and five-water sodium metasilicate from by-product lye in the process of producing zirconium oxychloride by alkali fusion method.The method comprises the following steps: removing zirconium from the by-product lye by once concentration and filtration, then adopting stepwise cooling and temperature control crystallization after twice concentration of the filtrate, and finally obtaining nine-water sodium metasilicate by solid-liquid separation through a scraper type centrifuge and obtaining five-water sodium metasilicate by drying through a vibrating fluidized bed.In the preparation process, no reagent for adjusting modulus is needed, and through specific step-by-step concentration and zirconium removal process, full component utilization of waste liquid is realized.The nine-water and five-water sodium metasilicate products prepared by the method have product indexes meeting the requirements of superior products, and have the characteristics of large crystal particles, less mother liquor entrainment, high whiteness, and low water insoluble substance.The process not only significantly reduces the production cost, but also realizes green preparation of non-phosphorus washing aid and closed circuit circulation of zirconium resources, and has significant economic benefits and environmental protection value.

This invention proposes an environmentally friendly magnesium-aluminum spinel protective agent for high-temperature environments and its preparation method, relating to the field of high-temperature industrial kiln lining protection. The protective agent comprises the following components by mass percentage: 55-70 wt% magnesium-aluminum spinel powder, 8-15 wt% activated alumina micro powder, 5-10 wt% lightly calcined magnesium oxide powder, 5-12 wt% aluminum sol binder, 1-3 wt% high-temperature wetting accelerator, 0.3-1.0 wt% polycarboxylate dispersant, 0.2-0.8 wt% organic cellulose ether thickener, and the balance being deionized water; wherein the particle size distribution of the magnesium-aluminum spinel powder satisfies D50≤10μm and D90≤25μm; the high-temperature wetting accelerator is at least one of calcium borate, sodium metasilicate, or tetrabutyl titanate; the viscosity of the protective agent slurry at 25℃ is 1800-3500 mPa·s. The protective agent can be applied directly to the surface of high-temperature substrates at 800–1350°C without cooling the substrate to medium or low temperatures, thus reducing equipment downtime to 4–6 hours.

The application relates to the field of petroleum chemical industry and discloses a filling material for waste oil and gas pipelines and a preparation method and a filling process thereof. The filling material comprises the following components and mass parts: fly ash 80-100 parts, cement 5-15 parts, water 120-150 parts, sodium metasilicate 0.1-1.5 parts, modified PVA glue liquid 0.5-10 parts, retarder 0.1-0.5 parts and expanding agent 5-15 parts. The filling material provided by the application only uses a very low mass part of cement, uses a large amount of fly ash, has better environmental friendliness, is lower in cost, has high fluidity, has long initial setting time, is particularly suitable for long-distance oil and gas pipelines, has good strength and solidity after solidification, can realize permanent solidification, has good stability, has a simple and easy-to-implement preparation method and is high in filling efficiency.

The application discloses polymer-based anti-cracking concrete and a preparation method thereof, and relates to the technical field of concrete. In the preparation of the polymer-based anti-cracking concrete, acrylic acid is grafted on the surface of pretreated polypropylene particles to prepare modified polypropylene particles; sodium alginate is used to coat sodium metasilicate to prepare self-repairing microcapsules; 3-glycidyl ether oxypropyl trimethoxysilane is hydrolyzed and grafted on the surface of silicon dioxide to prepare modified silicon dioxide; the modified polypropylene particles, basalt fibers and polyacrylonitrile fibers are mixed to prepare a solid functional component; and cement, slag powder, silica fume, an expanding agent, the solid functional component, the modified silicon dioxide, a water reducing agent, an air entraining agent, deionized water, river sand, crushed stone and pre-wetted self-repairing microcapsules are mixed to prepare the polymer-based anti-cracking concrete. The polymer-based anti-cracking concrete prepared by the application has excellent anti-cracking, anti-freezing and thawing and self-repairing properties.

A powder mixture capable of easily forming a geopolymer solidified body at a site and of producing a geopolymer solidified body having high strength. The geopolymer solidified body is made to be formed by adding water or with water and aggregate to a powder mixture obtained by mixing an active filler and an alkali powder, thus a geopolymer solidified body can be formed by bringing the powder mixture previously prepared into a site and mixing the powder mixture with water or with water and aggregate at the site. Further, any one of a powder of sodium metasilicate, a powder of sodium metasilicate and sodium hydroxide, and a powder of sodium metasilicate and potassium hydroxide is made to be used as an alkali powder of the powder mixture, and therefore geopolymer concrete having high strength can be formed.

The application relates to a rapid-forming geopolymer concrete prefabricated component and a preparation method thereof. The technical scheme is as follows: 125-150 parts by mass of sodium metasilicate is mixed with 200-235 parts by mass of water to obtain a solution; the solution is stirred until it is clear, and is cooled to 5-15 DEG C to obtain an alkali activator; the alkali activator is mixed with 225-285 parts by mass of metakaolin, 60-120 parts by mass of fly ash, 400-600 parts by mass of fine aggregate and 550-850 parts by mass of coarse aggregate, is stirred, is poured, and is shaped for 10-30 min; demolding is carried out, and maintenance is carried out at normal temperature for 2-7 days to obtain the rapid-forming geopolymer concrete prefabricated component. The application has the characteristics of high solid waste resource utilization rate, short forming time, low maintenance cost and high mold flow efficiency, can be directly operated on a construction site and can be rapidly and continuously produced, and the prepared rapid-forming geopolymer concrete prefabricated component has early compressive strength.

The application discloses a kind of nano imbibition displacement particles, including nanometer silica skeleton and carboxyl group connected on nanometer silica skeleton.The application also discloses the preparation method of nano imbibition displacement particles, comprising the following steps: (1), sulfuric acid solution is added to sodium metasilicate solution, and first reaction liquid is obtained after reaction;(2), C-based modifier is added to the first reaction liquid, and second reaction liquid is obtained after reaction;(3), the second reaction liquid is heated to reaction temperature, and third reaction liquid is obtained after grafting reaction;(4), the third reaction solution is filtered, washed, and dried to obtain nano imbibition displacement particles.The application also discloses the application of the above-mentioned nano imbibition displacement particles as oil displacement agent in the oil exploitation of low-permeability oilfield.The nano imbibition displacement particles prepared by the application have strong controllability and stability, and can improve the recovery efficiency of crude oil;In addition, the preparation method is simple, environment-friendly and low in cost.

The present application belongs to the technical field of detergent, and particularly relates to a green and environment-friendly multi-effect school uniform special dipping powder composition and application thereof. The green and environment-friendly multi-effect school uniform special dipping powder composition provided by the present application comprises the following components and mass percentages thereof: 30-60% of sodium percarbonate, 5-20% of anhydrous sodium metasilicate, 0.5-8% of non-ionic surfactant, 0.5-8% of zwitterionic surfactant, 0.5-5% of anionic surfactant, 0.2-0.5% of anti-redeposition agent, 0.2-1% of composite chelating agent, 0.6-4% of composite enzyme preparation, 0.05-8% of auxiliary agent, and the rest is sodium carbonate, and the sum of the mass percentages of the above components is 100%. The present application can be used without high-temperature dissolution of more than 60 DEG C or even 80 DEG C, can effectively protect the fabric, prevent the fabric from being damaged, and achieve the protection of the fabric while achieving the strong cleaning of stains, efficient whitening, dry deodorization and prevention of excessive cleaning.

In the present invention, a solidifying material that binds together particles of a brick raw material containing moisture is composed of an aluminum silicate powder, sodium metasilicate nonahydrate, and nanobubble water. The particles of the brick raw material and the solidifying material are uniformly dispersed and kneaded by the action of the nanobubble water, and the resulting kneaded product is pressure-molded and naturally dried to produce an unfired brick.

The application relates to the technical field of well repairing processes, and discloses a high-temperature-resistant and strong-cementing leak-stopping cement system for oil-water wells as well as a preparation method and application thereof. The leak-stopping cement system is composed of a solid component and a liquid component; the solid component contains cement, active alumina, superfine high-purity silica sand, fiber toughening material, graphene oxide and mud cake modifier; the liquid component contains water and additives; the mud cake modifier is composed of sodium metasilicate salt, silicate mineral micro powder and organic resin; the additives include at least one of a retarder, a suspending agent, a dispersant, a fluid loss additive and a defoaming agent; and the fiber toughening material is a calcium carbonate whisker with a needle-like or fibrous structure. The high-temperature-resistant and strong-cementing leak-stopping cement system of the application still has high strength at high temperature, has strong cementing capacity, ensures the stability and reliability of well repairing operations, and is particularly suitable for casing leak-stopping operations of thick oil wells and high-temperature wells.

This invention discloses a nanocomposite phase change antifreeze water-reducing agent and its preparation method, comprising water and the following components in parts by weight: 5-8 parts polycarboxylate superplasticizer mother liquor, 6-10 parts ethylene glycol, 8-10 parts calcium formate, 2-4 parts sodium nitrite, 5-8 parts methanol, 2-5 parts sodium metasilicate, 1-2 parts sodium thiocyanate, 0.3-0.6 parts air-entraining agent, 6-8 parts modified nano titanium dioxide, and 8-10 parts ternary phase change material. This nanocomposite phase change antifreeze water-reducing agent is a composite functional admixture that introduces nanomaterials and phase change materials into traditional antifreeze water-reducing agents. It not only prevents concrete from freezing at low temperatures but also regulates the internal temperature changes of concrete through "phase change" characteristics, thereby improving the durability of concrete under freeze-thaw cycles.

This invention belongs to the field of polymer catalysis technology, and discloses a MeOH-bifunctional zirconium-based heteropolyacid catalytic system, its preparation method, and its application. S1. Prepare aqueous solutions of sodium tungstate and sodium metasilicate. Add hydrochloric acid solution and sodium metasilicate solution to the sodium tungstate aqueous solution, adjust the pH value, let it stand, and then add potassium chloride to obtain SiW-1; S2. Dissolve SiW-1 in deionized water, adjust the pH value, let it stand, and then add potassium chloride to obtain SiW; S3. Dissolve SiW in deionized water, adjust the pH value, add zirconium oxychloride aqueous solution, adjust the pH value again, add cesium chloride, stir, filter to collect the precipitate, grind it into powder, and add the powder to MeOH to obtain the heteropolyacid catalytic system. The heteropolyacid catalytic system of this invention has excellent catalytic effect, is simple to prepare, and can be recycled.

This invention relates to the field of refractory materials for continuous casting, and discloses a carbon-free dry tundish based on an inorganic salt composite binder. The dry tundish consists of aggregate, powder, binder, and additives. By total weight, the binder includes: 1.0-5.5 wt% sodium metasilicate containing water of crystallization, 0.5-2.5 wt% aluminum dihydrogen phosphate, and 0.1-0.8 wt% mineralizer. The aggregate is fused magnesia or sintered magnesia, with a particle size distribution of 15-25% 5-3 mm, 20-30% 3-1 mm, and 15-25% 1-0 mm. The powder is fine fused magnesia powder with a particle size not exceeding 0.088 mm, comprising 20-35% of the powder. Under the catalytic action of the mineralizer, the composite binder undergoes dehydration and condensation to form multinuclear nanoclusters with Al-O-P as bridging bonds. These nanoclusters cross-link to form a three-dimensional network structure, providing early strength at low temperatures. When the temperature rises above 800℃, it transforms into an aluminum-phosphate ceramic phase to achieve high-temperature strength. This invention has the advantages of being completely carbon-free, having excellent strength properties, high baking efficiency, good impermeability, and being environmentally friendly and safe.

This application relates to the field of cleaning agent technology, specifically disclosing a highly effective kitchen heavy-duty oil stain cleaner and its preparation method. The highly effective kitchen heavy-duty oil stain cleaner comprises the following raw materials in percentages: surfactant A 3%-5%, surfactant B 3%-5%, sodium metasilicate pentahydrate 3%-5%, strong alkali 0.475%-0.525%, and disodium 0.19%-0.21%. The preparation method is as follows: under continuous stirring, surfactant A and surfactant B are added to deionized water, and stirring is maintained until both surfactants are completely dissolved to form a mixed solution. By employing a technical solution of rationally compounded raw materials and synergistic action of surfactants with disinfecting effects, a comprehensive cleaning effect of strong detergency, emulsification, dispersion, and penetration is achieved. Simultaneously, it possesses environmentally friendly, easily degradable, and corrosion-resistant properties against common metals, solving the problems of limited detergency, environmental pollution, or corrosion of utensils.

The application relates to the technical field of grouting materials, and discloses a solid waste grouting material for bridge and tunnel mined-out areas and a preparation method thereof. The solid waste grouting material is prepared by fully mixing steel slag, fly ash, slag, desulfurization gypsum, sodium metasilicate and water at normal temperature, the fluidity of the obtained grouting material is kept below 35S during the grouting process, the 28d uniaxial compressive strength is greater than or equal to 2MPa, and the total production cost of the grouting material is less than or equal to 200 yuan / ton. Only by strictly limiting the mixing ratio of raw materials and the solid water ratio, and by making the proportion of low-price solid waste large enough, can the cost be effectively suppressed to less than or equal to 200 yuan / ton, the fluidity be less than or equal to 35S, the mechanical strength be greater than or equal to 2MPa, and the grouting material have wide use value in bridge mined-out areas.

The application discloses a preparation method of a dispersant for slurry preparation of Russian coal and Australian coal, and belongs to the field of coal processing.The application provides a method for modifying a naphthalene dispersant by using sodium lignosulfonate, sodium metasilicate, sodium silicate and sodium carbonate, wherein naphthalene is sulfonated by concentrated sulfuric acid, then hydrolyzed, and excessive formaldehyde is added for polymerization; after 2-3 hours of polymerization, the temperature is increased to 105 DEG C, and the reaction is continuously carried out for 3-4 hours; sodium hydroxide is added for neutralization to alkaline; after sodium lignosulfonate is added for sufficient reaction, sodium metasilicate, sodium carbonate, sodium silicate and the like are added according to the ash content and ash component characteristics of the Russian coal and the Australian coal to improve the performance. The water coal slurry dispersant synthesized by using the above method adjusts the molecular structures of the naphthalene dispersant and the lignin dispersant, and improves the adsorption performance of the dispersant on the surfaces of the two kinds of coal by using sodium metasilicate, sodium silicate and sodium carbonate, so that the water coal slurry dispersant has better stability and higher slurry concentration than traditional naphthalene additives and lignin additives.

The application provides a platinum catalyst for water electrolysis of a proton exchange membrane and a preparation method and application thereof, and comprises the following steps: S1, adding a sulfuric acid solution into a precipitation container, then adding a sodium metasilicate solution and a hydrochloric acid solution into the precipitation container at a certain precipitation temperature to perform precipitation, keeping warm for a period of time after the addition is completed, and filtering, washing and drying the precipitate to obtain a white carbon black carrier; S2, immersing the obtained white carbon black carrier into an alcohol, adding an alkali solution dropwise to adjust the pH to 7.5-9.0 in the stirring process, and evaporating to dryness to obtain a modified white carbon black carrier; S3, preparing a suspension of the modified white carbon black carrier, adding a platinum source, keeping warm at 80-100 DEG C for 20-40 min, adjusting the pH to 8.0-9.0 with an alkali solution, adding a reducing agent to perform reduction, and filtering, washing and drying, so that the platinum catalyst for water electrolysis of the proton exchange membrane is obtained. The platinum catalyst still has good stability and high catalytic activity under a high current density.