13 results about "Sodium fluosilicate" patented technology

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 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 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 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 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 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 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.

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.