30 results about "Sodium fluosilicate" patented technology

The invention relates to the technical field of flux-cored wires. The preparation method comprises the following steps: weighing the following raw materials in parts by weight: 4-6 parts of chromium carbide powder, 7-9 parts of molybdenum powder, 6-8 parts of nickel powder, 10-15 parts of niobium powder, 15-18 parts of tungsten carbide powder, 7-11 parts of a modified titanium carbide agent, 5-8 parts of a blending agent added based on boron and 2-4 parts of 30-mesh natural graphite; 1-2 parts of sodium fluosilicate; 1-2 parts of aluminum powder; and 70-75 parts of iron powder. The flux-cored wire can adapt to complex service environments of parts such as rollers and continuous casting crystallizers in the metallurgical industry, the service life of the parts subjected to surfacing repair is prolonged, the production efficiency of the parts subjected to surfacing repair is improved, the obtained flux-cored wire achieves balance of high-temperature performance, mechanical performance and low-temperature stability, and the comprehensive applicability of products is improved.

The invention belongs to the technical field of industrial wastewater treatment and resource recovery, and particularly relates to an enhanced treatment method for recovering fluorine resources in semiconductor processing fluorine-containing wastewater. And step-by-step efficient recovery of sodium fluosilicate and calcium fluoride is realized through cooperation of precipitant compounding and pH regulation. The method comprises the following steps: firstly, adding a NaCl-NaHCO3 composite precipitator and sodium fluosilicate seed crystals to induce crystallization and recover hexagonal prism-shaped sodium fluosilicate single crystals; and after filtering, adding a CaCl2-Ca (OH) 2 composite precipitator and calcium fluoride seed crystals into the filtrate to generate large-particle calcium fluoride. And the impurity content in the recovered product respectively reaches the industrial sodium fluosilicate superior product standard and the metallurgical grade calcium fluoride secondary product standard. And the treated wastewater is neutral or weakly alkaline, so that the subsequent mixed treatment with other wastewater is facilitated.

The invention relates to the technical field of geopolymer concrete preparation, in particular to a geopolymer concrete material based on tailings and a preparation method. The geopolymer concrete material based on tailings is prepared from 40 to 60 parts of modified tailings, 20 to 30 parts of modified slag, 10 to 20 parts of activated metakaolin, 5 to 12 parts of quartz sand and a composite exciting agent solution, wherein the liquid-solid ratio of the composite exciting agent solution is 0.3 to 0.4; the preparation method of the composite exciting agent comprises the following steps that sodium fluosilicate, aluminum ammonium sulfate and sodium sesquicarbonate are dissolved in water according to the mass ratio of 3: 2: 1, a mixed solution is obtained and left to stand for 30 min, the composite exciting agent is obtained, and the mass ratio of water to sodium fluosilicate is (20-40): 1. According to the geopolymer concrete material based on the tailings and the preparation method, the problems that in the prior art, the energy consumption of a tailings treatment process is high, and a traditional high-alkali activator easily causes alkali-aggregate reaction are solved.

The invention discloses a colorless medium borosilicate medicinal glass tube and a preparation method thereof, and belongs to the technical field of glass products. The medicinal glass tube comprises the following raw materials in parts by weight: 550-650 parts of quartz sand, 60-70 parts of aluminum hydroxide, 100-250 parts of borax pentahydrate, 5-15 parts of sodium nitrate, 15-30 parts of sodium carbonate, 1-5 parts of sodium fluosilicate, 10-15 parts of calcite, 5-10 parts of barium carbonate, 5-10 parts of potassium carbonate, 10-20 parts of a compound clarifying agent and 400-500 parts of medium borosilicate glass slag. The quartz sand and the borax pentahydrate in a high proportion provide a basis for the high borosilicate glass, the chemical stability of the glass is remarkably improved, the glass can resist acid and alkali erosion and is very suitable for storing various medicines, and in addition, substances such as aluminum hydroxide, calcite, sodium nitrate, sodium carbonate and sodium fluosilicate are added, so that the thermal stability and the mechanical property of a glass product are improved.

The invention relates to the technical field of microcrystalline plates, in particular to an industrial microcrystalline plate manufactured from graphite tailings and a manufacturing method, the industrial microcrystalline plate is prepared from the following raw material components in percentage by mass: 62-70% of graphite tailings, 6-10% of quartz sand, 6.0-7.0% of sodium carbonate, 5-7% of limestone, 2-2.8% of dolomite, 3-4% of sodium fluosilicate, 1.5-2% of sodium nitrate and 0.1-0.2% of cerium oxide. By analyzing the components of the graphite tailings and adopting a specific formula combination, the graphite tailings are manufactured into the microcrystalline plate with excellent industrial wear resistance and corrosion resistance, so that the problems that the microcrystalline plate manufactured by the existing formula is poor in wear resistance and poor in corrosion resistance are solved. The wear-resistant lining is not applicable to gangue bins, coal storage bunkers, dumper rooms and coal preparation plant equipment in the coal industry.

The present application belongs to the technical field of wastewater treatment, and specifically discloses a method for removing fluorine and COD from copper smelting process wastewater after sulfuration, which comprises the following steps: first, calculating the amount of potassium permanganate required for the reaction of fluorine and sodium silicate in the copper smelting process wastewater after sulfuration; then, adding the potassium permanganate into the copper smelting process wastewater after sulfuration for heating and stirring to obtain a mixed solution; then, adding a coagulant into the mixed solution for mixing and stirring to obtain a flocculation solution; finally, filtering the flocculation solution to obtain a precipitate containing nickel and a purified solution. The introduction of potassium permanganate promotes the transformation of sodium silicofluoride, and the fluorine-containing compounds are removed from the system in the form of precipitation. The newly generated sodium permanganate can effectively degrade the COD in the wastewater, improve the fluorine removal efficiency and depth, and also help to degrade the COD to a certain extent, thereby reducing the wastewater treatment cost.

The application discloses a combined depressor for recovering scheelite from ultra-low-grade tungsten-molybdenum associated ore and a method, the combined depressor comprising sodium humate, sodium mercaptoacetate, ammonium citrate, sodium pyrophosphate, sodium fluosilicate and lead nitrate, and the six kinds of substances are configured into the combined depressor in a proportion of 1:1:(2-5):(1-5):(1-3):(2-5). The application aims at recovering scheelite from low-grade refractory ore, improves the separation effect of scheelite and gangue minerals, improves the scheelite recovery rate and the concentrate grade, and improves the economic benefit.

The invention discloses an inhibitor for flotation of complex associated fluorite as well as a preparation method and application of the inhibitor. The inhibitor for the flotation of the complex associated fluorite is characterized by being prepared from the following components in percentage by mass: 30-60% of a calcium inhibitor; 30-60% of a silicon inhibitor; 10%-20% of a synergist; wherein the calcium inhibitor is selected from one or more of organic phosphoric acid compounds and polycarboxylic acid compounds; the silicon inhibitor is selected from one or more of water glass, sodium hexametaphosphate and sodium fluosilicate; the synergist is selected from aluminum salt. The silicon-calcium synchronous inhibitor achieves efficient flotation separation under the low-alkali roughing condition, has the advantages of being simple in process, low in energy consumption, stable in production index and the like, and is suitable for industrial production.

The invention relates to the technical field of industrial wastewater resourceful treatment, and provides a glass thinning etching waste liquid and waste residue resourceful method which comprises the following steps: treating glass thinning etching waste liquid by adopting a sodium chloride precipitation method to obtain first filter residue and first filtrate; neutralizing the glass thinning etching waste residues with ammonia water to obtain second filter residues and second filtrate; adding the second filter residue into the first filtrate, adding a part of the second filtrate, and stirring for reaction to obtain a third filter residue and a third filtrate; adding sodium fluosilicate seed crystals and sodium chloride into the third filtrate, and reacting to obtain fourth filter residues and fourth filtrate; lime is added into the fourth filtrate to adjust the pH value to be 11 or above, meanwhile, a modified flocculant accounting for 1-5% of the mass of the fourth filtrate is added, and a fifth filter residue and a fifth filtrate are obtained through a reaction; synergistic recycling of the glass thinning etching waste liquid and waste residues can be achieved, and particularly step-by-step recycling of the glass thinning etching waste residues can be achieved.

A preparation method of a new type of environment-friendly natural latex product. The method comprises the following steps: S1, preparation of a sodium salt solution of shellac resin; S2, adding potassium pyrophosphate, potassium oleate, potassium ricinoleate and sulfur dispersion into natural latex, and stirring and aging to obtain a mixture A; S3, adding calcium salt aggregates of shellac resin and a rubber deodorant into the mixture A, stirring uniformly, immediately transferring the mixed glue liquid into a foaming machine to perform foaming, injecting zinc oxide dispersion and sodium fluosilicate dispersion during the foaming process, and injecting the foamed latex mixture into a pillow mold to enter a steaming oven for vulcanization; and S4, washing and vacuum drying the semi-finished product of the latex product, and completing the production. The method is convenient to process and reliable in environmental protection.

The invention relates to a semiconductor industry ammonium sulfate solid recycling method, which comprises: (1) mixing a sodium-containing ammonium sulfate solid and an ammonium sulfate solution at a temperature of 60-85 DEG C to obtain a saturated ammonium sulfate solution at a temperature of 60-85 DEG C; (2) carrying out cooling crystallization on the saturated ammonium sulfate solution, and carrying out solid-liquid separation to obtain refined ammonium sulfate and a first mother solution; (3) adjusting the pH value of the first mother liquor to be alkaline, and performing heavy metal impurity removal to obtain impurities and second mother liquor; and recycling the second mother liquor according to the sodium content in the second mother liquor. According to the method provided by the invention, a high-purity ammonium sulfate product can be obtained; and the discharge of mother liquor can be reduced, a sodium fluosilicate byproduct can be produced, the utilization rate of resources is improved, and the economic requirement and the environmental protection requirement are both considered.

The invention belongs to the technical field of building material production, and discloses high-performance long-distance pumping concrete and a preparation method thereof. According to the ratio calculated according to the specification, the concrete components are obtained through orthogonal regression calculation. The concrete components comprise 290 to 360 parts of cement, 690 to 730 parts of sand, 1000 to 1050 parts of broken stone, 140 to 210 parts of mineral admixture, 4.3 to 5.5 parts of water reducing agent and 152 to 163 parts of water. A compound admixture prepared from sodium gluconate, cane sugar, sodium hexametaphosphate, boric acid, sodium fluosilicate and glycerol is added into concrete, so that the concrete has excellent flowability, slump retaining property and mechanical property, the long-distance pumping performance is remarkably improved, and the problem of pipe blockage is effectively solved.

The invention provides an additive for improving the activity of a concrete mineral admixture, and belongs to the technical field of concrete.The additive is prepared from flue gas desulfurization gypsum, sodium metaaluminate, ferric oxide, calcium hydroxide, sodium methyl silicate, magnesium fluosilicate, sodium fluosilicate, an iron-aluminum bimetallic complex, nano-silica, calcium lignosulphonate and the like as raw materials. The components are compounded according to a specific ratio for use, and the additive prepared by a special preparation method has a very good active synergistic effect, effectively improves the activity of the components such as the fly ash and the slag powder, improves indexes such as material workability and strength, and can support mixing of the components such as the fly ash and the slag powder in a large ratio to prepare a high-performance concrete material.

The invention relates to the technical field of building materials and solid waste resource utilization, and discloses an industrial solid waste synergistic utilization dry-mixed mortar preparation method, which comprises Bayer process red mud, undisturbed phosphogypsum, sodium fluosilicate, light calcined magnesia, ordinary Portland cement, fine aggregate and an additive. The preparation method adopts a unique step-by-step mechanochemical ball milling process: S1, co-grinding the red mud and sodium fluosilicate, etching the surface of the red mud in a targeted manner, and curing free alkali; s2, adding ardealite and light calcined magnesia, continuously grinding, and inducing dephosphorization passivation and lattice reconstruction by utilizing fluorine ion migration to prepare modified composite gelling powder; and S3, mixing with other components. Through chemical regulation and control of a time sequence, the problems of saltpetering of the red mud and delayed coagulation of the ardealite are effectively solved, efficient synergistic utilization of two large solid wastes is realized, and the obtained mortar has excellent mechanical properties, volume stability and water resistance.

The application relates to a system for preparing white carbon black and co-producing sodium fluoride by using sodium fluosilicate as raw material and a use method thereof, relates to the technical field of white carbon black, and particularly relates to a system for preparing white carbon black and co-producing sodium fluoride by using sodium fluosilicate as raw material and a use method thereof. The application successfully solves the disadvantages of high-temperature conditions, high requirements for equipment and high device prices in conventional gas-phase white carbon black production under the premise of outputting high-quality white carbon black, solves the problem that low-cost waste sodium fluosilicate cannot be efficiently utilized in the phosphate fertilizer industry, simultaneously provides a new process route and system for continuous production of white carbon black by using the precipitation method, provides a new optional way for resource utilization of fluorine and silicon, has positive significance and role for improving comprehensive utilization of fluorine and silicon resources, protecting the environment, improving benefits, developing more high-value-added products and promoting the development of fluorine chemical industry.

The application discloses a method for producing high-quality machine-made sandstone by using waste glass, and belongs to the technical field of building materials, and comprises the following steps: (1) crushing waste glass to obtain waste glass powder; (2) adding an alkali solution into the waste glass powder, mixing, stirring and reacting at a temperature of 65-85 DEG C for 3-5 hours to obtain a reaction product; and (3) uniformly mixing machine-made sandstone and sodium fluosilicate, then adding the mixture into the reaction product, continuously stirring, and continuously feeding carbon dioxide gas into the container until the liquid in the container is completely absorbed. The waste glass powder is reacted with the alkali solution to obtain water glass, and the water glass is solidified and coated on the surface of the machine-made sandstone, so that the strength and surface smoothness of the machine-made sandstone are improved. Moreover, the particle size distribution of the waste glass powder is reasonably designed, the graded glass particles with the corner part removed are mixed into the machine-made sand as aggregate, and the overall grading distribution of the mixed machine-made sand is improved.

The utility model relates to the technical field of production equipment, and particularly discloses sodium fluosilicate drying equipment which comprises an outer tank body and a drying tank arranged in the outer tank body, the outer tank body and the drying tank are both spherical, a cavity is formed between the outer tank body and the drying tank, and a discharging opening penetrating through the bottom of the outer tank body is formed in the bottom end of the drying tank. A feed port penetrating through the top of the outer tank body is formed in the top end of the drying tank, and the discharge port and the sphere center of the drying tank are coaxially arranged. Wet sodium fluosilicate materials are poured into the drying tank through the feeding port to be dried, after drying is completed, the discharging port is opened, the drying tank is spherical, the discharging port is located at the lowest position of the bottom end of the drying tank, and the dried materials can be automatically poured out from the discharging port under the action of gravity; and the phenomenon that dried materials stored at the end cannot flow to a discharging opening to be poured out is avoided, and the discharging treatment time and the labor cost are saved.

The invention discloses a marble 3D printing consumable capable of improving strength and a preparation method. The marble 3D printing consumable capable of improving strength comprises the following components in parts by weight: PLA, marble powder, a compatilizer, a nucleating agent, a lubricant, an antioxidant, modified TPU and sodium fluosilicate. Wherein the modified TPU comprises the following components in parts by weight: TPU, sodium silicate and aluminum chloride hexahydrate. Sodium silicate and aluminum chloride hexahydrate are wrapped by TPU, and during actual printing, the TPU is melted by the temperature of a nozzle to release sodium silicate and aluminum chloride hexahydrate, and hardness is enhanced under the combined action of the TPU and water. The artificial marble has the beneficial effects that the strength can be improved while the visual effect of marble can be simulated.

The invention relates to the field of concrete accelerators, and discloses a novel alcohol amine series high-aluminum fluoride-free chloride-free alkali-free accelerator and a preparation process thereof, and the accelerator is composed of the following components by weight: 42-48% of high-aluminum aluminum sulfate; 6%-10% of ferrous sulfate; 3%-4% of N-methyldiethanolamine; 4%-5% of diethanol amine; 0.8%-1.2% of citric acid; 1.5%-2.5% of sodium fluosilicate; 0.1%-0.3% of nano silicon dioxide; 1%-2% of triisopropanolamine; nano aluminum oxide; 0.2% to 0.4%; and the balance of deionized water. The mass content of aluminum oxide in the high-aluminum aluminum sulfate is 17.5%-18.5%. According to the preparation method disclosed by the invention, the accelerator with ultrahigh storage stability, coagulation accelerating effect, excellent mechanical strength and uniform batch height is obtained by virtue of synergistic stabilization of complex alcohol amine and nano silicon dioxide and combination of microwave activation and a two-step process.

The invention relates to a cement-based capillary crystalline waterproof material as well as a preparation method and application thereof. The cement-based permeable crystallization type waterproof material is prepared from 20 to 50 parts of cement, 3 to 8 parts of calcium formate, 2 to 10 parts of sodium methylsilanolate, 1 to 5 parts of sodium fluosilicate, 1 to 3 parts of magnesium lithium silicate, 0.5 to 0.8 part of tartaric acid, 1 to 5 parts of sodium glutamate diacetate, 0.5 to 2 parts of methyl acrylate, 0.1 to 1 part of expanding agent, 0.1 to 0.5 part of sodium bentonite and 0.1 to 0.5 part of polycarboxylate superplasticizer. The cement-based permeable crystallization type waterproof material provided by the invention is internally doped in concrete, has the advantages of low doping amount, high waterproof repairing efficiency and the like, can improve the strength and durability of the concrete, can realize the same service life as the concrete, and achieves the self-repairing purpose of permanent waterproofing.

The invention belongs to the technical field of solid waste resource utilization, and particularly relates to a black steel slag microcrystalline plate and a preparation method thereof. The black steel slag microcrystalline plate is prepared from the following raw materials in percentage by mass: 48 to 52 percent of steel slag, 33 to 37 percent of bottom slag, 8.5 to 10.5 percent of sodium carbonate, 0.5 to 1 percent of sodium sulfide, 3 to 3.5 percent of sodium fluosilicate, 0.6 to 0.8 percent of barium titanate, 0.04 to 0.06 percent of porous graphene microflowers, 0.2 to 0.3 percent of cerium fluoride, 0.6 to 0.8 percent of sodium pyrophosphate and 0.02 to 0.03 percent of color complementing agent. According to the black steel slag microcrystal plate and the preparation method thereof, the solid waste absorption amount and the product additional value are remarkably improved, a brand new scheme is provided for low-cost green manufacturing of the black microcrystal plate through the technical path of color control with waste, and the black steel slag microcrystal plate and the preparation method thereof have remarkable environmental benefits and industrialization prospects.

The application discloses a kind of low melting point flux for glass, by weight percentage, including the following components: SiO2 30~40%, Bi2O3 3~10%, R2O 15~25%, ZnO 10~15%, ZrO2 6~12%, B2O3 3~10%, TiO2 3~10%, Al2O3 2~6%, F 1~4%, rare earth oxide 1~3%; wherein, R2O is the basic oxide selected from Na2O, K2O and Li2O;Rare earth oxide is Y2O3 and / or La2O3;F is introduced by one or more of sodium fluosilicate, sodium fluoride, aluminum fluoride or calcium fluoride. The fast firing temperature of the low melting point flux can be as low as 590~600℃, and can be better applied to the surface of overglaze color opaque glass tableware, forming a protective film with high transparency, good color development, strong adhesion, good alkali resistance, maintaining the original color of pigment color, while significantly improving the resistance of overglaze color opaque glass tableware to dishwasher, greatly reducing the lead and cadmium leaching amount of overglaze color pigment.

The invention relates to instant modified sodium carboxymethyl cellulose. The modified sodium carboxymethyl cellulose is prepared by mixing the following raw material components in parts by weight: 70-80 parts of sodium carboxymethyl cellulose, 2-5 parts of guar gum, 2-5 parts of starch-based polysaccharide, 0.5-2 parts of polyethylene glycol and 15-30 parts of sodium fluosilicate. Meanwhile, the invention further discloses application of the instant modified sodium carboxymethyl cellulose in mineral separation of non-ferrous metal ores. According to the present invention, the existing carboxymethyl cellulose (CMC) reagent or the existing sodium carboxymethyl cellulose (CMC-Na) reagent can be replaced, the magnesium oxide content in the non-ferrous metal ore beneficiation concentrate can be effectively reduced, and the non-ferrous metal ore beneficiation index can be improved.

The application provides a method for producing microcrystalline glass from phosphogypsum, microcrystalline glass and a phosphogypsum-based mixed raw material. The method for producing microcrystalline glass from phosphogypsum comprises the following steps: obtaining the phosphogypsum-based mixed raw material, wherein the phosphogypsum-based mixed raw material comprises, in terms of mass fraction, 30-45% of phosphogypsum, 20-40% of quartz sand, 5-10% of soda ash, 5-10% of sodium fluosilicate and 5-15% of feldspar; melting and forming the phosphogypsum-based mixed raw material to obtain a glass substrate; and performing heat treatment on the glass substrate to obtain the microcrystalline glass. The application creatively applies the phosphogypsum to the preparation of the microcrystalline glass without desulfurization treatment, significantly simplifies the steps, reduces the energy consumption and cost, and is simple and efficient, and is worth promoting.

The invention relates to a beneficiation method for floatable-reinforced recovery of nickel and cobalt from low-grade nickel-cobalt ore and the like, which comprises the following steps of: sequentially adding a dispersing agent, an inhibitor, a copper sulfate activating agent, a xanthate collecting agent and a collecting foaming agent during flotation under the condition that the grinding fineness is-200 meshes and 72%; and finally, qualified nickel-cobalt concentrate is obtained by adopting a flotation process of four-time roughing, three-time concentration and three-time concentration sweeping. The inhibitor is prepared from sodium carboxymethyl cellulose, guar gum, starch-based polysaccharide, polyethylene glycol and sodium fluosilicate; the dispersing agent is prepared from lignin, sodium tripolyphosphate, sodium humate and sodium silicate; and the collecting foaming agent is composed of tripropylene glycol butyl ether, dialkyl dithiocarbamate, ethyl xanthic acid allyl ester and sulfur nitrogen nitrile ester. The method can effectively reduce the content of magnesium oxide, improve the beneficiation index, and solve the problems that flotation froth is sticky, the flowability is poor, nickel minerals are interfered by gangue mineral covers and the like.

The invention comprises a finishing material formed in a plate shape and composed of at least one of a non-combustible stone panel or ceramic tile; a non-combustible insulation material composed of at least one of mineral wool or glass wool that is adhered to the lower part of the finishing material; and a non-combustible adhesive material that adheres the non-combustible insulation material to the lower part of the finishing material and is composed of 10 to 50 wt% bisphenol A diglycidyl ether, 3 to 8 wt% fluorine silicate, 1 to 10 wt% sodium fluoride silicate, 5 to 20 wt% refractory powder, 10 to 45 wt% calcium carbonate, 3 to 10 wt% titanium oxide, 3 to 10 wt% sodium triphosphate, 0.5 to 4 wt% aluminate coupling agent, 0.1 to 2 wt% dispersant, and 0.1 to 2 wt% leveling agent. Therefore, we provide a non-combustible exterior material that enhances the marketability and usability of building finishing materials by ensuring functionality that satisfies non-combustible or flame-retardant regulations while making it easy to add design diversity and increasing decorative value.

The invention discloses a capillary crystalline high-strength magnesium phosphate material for repairing concrete structure cracks and a preparation method of the capillary crystalline high-strength magnesium phosphate material, and belongs to the technical field of repairing and reinforcing of concrete engineering. The high-strength magnesium phosphate material comprises the following raw materials: 40-50% of a magnesium raw material, 10-20% of a phosphate material, 10-20% of a superfine mineral admixture, 20-35% of a high-strength aggregate, 1-5% of a composite retarder, 0.5-4% of a viscosity reducer and 0.5-3% of a capillary crystalline agent. Wherein the composite retarder comprises borax, cane sugar and zinc acetate; the capillary crystalline agent is prepared from polysiloxane, sodium methylsilanolate, sodium fluosilicate and EDTA-4 (Ethylene Diamine Tetraacetic Acid Tetraacetic Acid) sodium. The magnesium phosphate material has the characteristics of controllable setting time, high early strength, no shrinkage of later strength, good adhesive property, low shrinkage rate, excellent impermeability and durability, construction diversity and the like, can play a good role in repairing and strengthening the appearance and the interior of a concrete structure, and has a wide application prospect.

The utility model provides a device for continuously producing sodium fluosilicate by utilizing low-grade fluosilicic acid, which realizes the flowing type continuous production of the produced sodium fluosilicate through a thickener, a scraper centrifuge and a dryer which are arranged in sequence, and meets the requirement that the low-grade fluosilicic acid is continuously converted into a sodium fluosilicate product. In addition, the thickener and the scraper centrifugal machine are communicated to the filter press II, so that mother liquor components are recycled to the salt dissolving tank, and the negative influence of mother liquor wastewater on the environment is reduced.

The invention provides a high-temperature-resistant sealing filling material and a preparation method thereof. The preparation method comprises the following steps: respectively weighing the high-aluminum fine powder, the chromic oxide, the diboron trioxide, the magnesium oxide, the silicon dioxide, the titanium dioxide, the calcium oxide and the zirconium oxide powder in proportion, and uniformly mixing and stirring to obtain the component A high-temperature-resistant powder; weighing sodium fluosilicate, grinding and sieving to obtain a component B; weighing a sodium silicate solution, and hydrolyzing to obtain a component C; the component A, the component B and the component C are mixed according to a certain mass ratio and are rapidly and uniformly stirred to obtain the high-temperature-resistant sealing filling material. The prepared high-temperature-resistant sealing and filling material can be used for filling and sealing of metal and ceramic materials and can resist the high temperature of 1200 DEG C, the thermal weight loss ratio at the temperature of 1200 DEG C is smaller than 0.035%, and the normal-temperature shear strength (aluminum-aluminum) can reach 4.6 MPa.

According to the beneficiation method, through a selective crushing and ore grinding technology, sodium stearate and sodium fluosilicate surfactants are added in the ore grinding stage for flotation separation, the content of chloride ions in flotation phosphate concentrate can be effectively reduced, and the quality of the phosphate concentrate is effectively improved; and in the flotation stage, low-chlorine phosphate concentrate, medium-chlorine middlings and magnesium-removed tailings are finally obtained through roughing, concentration and scavenging. The selective crushing and ore grinding technology-two-stage grading flotation technology adopted by the method has the economic and technical advantages that the separation efficiency is high, the concentrate recovery rate is high, the economical efficiency is good, and the process flow and the reagent system are easy to regulate and control. The method has a good guiding effect on development of middle-low grade chlorine-containing phosphate ore, improvement of the utilization rate of refractory phosphate ore resources, improvement of the economic value of phosphate concentrate through a flotation process and provision of high-value phosphate concentrate.