85 results about "SODIUM METAPHOSPHATE" patented technology

The invention belongs to the technical field of fine chemical engineering, and discloses hydroxypropyl crosslinked starch as well as a preparation method and application thereof. The preparation method of the hydroxypropyl crosslinked starch comprises the following steps: mixing starch and water to prepare starch milk; adding sodium phytate and urea; adding sodium sulfate and sodium hydroxide after cooling; adding epoxypropane for reaction; and adding sodium trimetaphosphate to react to prepare the hydroxypropyl crosslinked starch. The hydroxypropyl crosslinked starch prepared by the preparation method disclosed by the invention has excellent shear resistance, acid resistance and oxidation resistance.

The invention discloses a formaldehyde-free composite board for a cabinet and a preparation method of the formaldehyde-free composite board, and relates to the technical field of artificial board manufacturing. The preparation method of the formaldehyde-free composite board for the cabinet comprises the following steps: mixing high amylose with a choline chloride / urea deep eutectic solution, stirring, adding concentrated hydrochloric acid for reaction, adjusting the pH value, and adding ammonium persulfate to obtain pretreated oxidized starch; methacrylic acid dehydrated glyceride is added into the pretreated oxidized starch for a grafting reaction, then modified polyvinyl alcohol is added for blending, sodium metaphosphate is added for crosslinking, finally, heating and curing are conducted, modified titanium dioxide nanoparticles are added, and the formaldehyde-free starch adhesive is obtained. The wood shavings and the formaldehyde-free starch adhesive are mixed, and a core material is obtained; and arranging the core material between the formaldehyde-free veneers, and carrying out hot press molding to obtain the formaldehyde-free composite board. The formaldehyde-free composite board for the cabinet has excellent mechanical strength, bonding performance and water resistance.

The invention discloses a fluoride-free strong-acid-free reverse flotation method for extracting a high-purity quartz sand flotation product from granite pegmatite, and belongs to the technical field of mineral flotation. The method comprises the following steps: carrying out graded crushing and ore grinding on granite pegmatite to obtain slurry to be treated; carrying out wet magnetic separation on the to-be-treated slurry to obtain ore pulp after magnetic separation and magnetic-containing minerals; the pH value of the ore pulp is not adjusted, reverse flotation is carried out in the presence of a quartz mixed inhibitor, and a feldspar product and a quartz product are obtained; the quartz mixed inhibitor is a combination of a component A and a component B, wherein the component A is selected from at least one of sodium metasilicate, sodium tripolyphosphate, sodium hexametaphosphate, carboxymethyl cellulose and salinized water glass; the component B is selected from at least one of guar gum, Arabic gum, sodium humate and citric acid. The method is free of fluorine and strong acid, green and efficient, and is a method for preparing high-purity quartz sand from pegmatite with high industrial application feasibility.

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.

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.

The application discloses a kind of adsorptive control materials for tunnel hole slag stone powder and application.The adsorptive control material is mixed by surface active component, complex component, anti-mud component three components according to 3-7:1:0.5-5 mass ratio;The surface active component is one or more of dodecyltrimethylammonium chloride, dodecyl dimethyl benzyl ammonium chloride, didodecyltrimethylammonium chloride;The complex component is one or more of sodium silicate, sodium hexametaphosphate;The anti-mud component is one or more of polyethylene glycol, β-cyclodextrin, dimethyl diallyl ammonium chloride.The adsorptive control material can improve the adsorption of tunnel hole slag stone powder, ensure the working performance of concrete.

The invention relates to the technical field of tobacco processing, in particular to a method for inhibiting oxidative discoloration of a colorant for colored cigarette paper, and aims to solve the problem that when water-soluble azo acid dyes (such as lemon yellow and sunset yellow) coexist with a citrate combustion improver, synergistic degradation is easy to occur under illumination and high-temperature processing conditions to cause discoloration. Sodium hexametaphosphate with the mass being 0.5%-10% of that of dye is introduced into a coloring system to serve as a stabilizer. Sodium hexametaphosphate not only can chelate metal ions in a system, but also can effectively block free radical chain reaction caused by citrate, and reduce direct attack of alkali metal ions on dye chromophores, so that efficient color protection is realized through an ion isolation-free radical quenching dual mechanism. Experiments show that dye conversion can be remarkably inhibited, the inhibition rate can reach 85% or above under the optimal addition amount, and the batch color difference problem of colored cigarette paper is fundamentally solved.

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.

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.

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.

The present application relates to the technical field of lithium ion battery recycling, in particular to a method for stripping lithium ion battery pole piece and application thereof. The method for stripping lithium ion battery pole piece comprises: immersing the pole piece into a mixed solution containing a stripping agent and a stripping aid for reaction, and obtaining the separated active material layer and the current collector layer after a period of time; the stripping agent comprises a carboxylic acid containing at least two carboxyl groups; the stripping aid comprises at least one of sodium fluoride, potassium fluoride, ammonium fluoride, phosphoric acid, sodium phosphate, monosodium phosphate, sodium metaphosphate, potassium phosphate, monopotassium phosphate, potassium metaphosphate, ammonium phosphate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, inositol hexaphosphate and its salt, inositol pentaphosphate and its salt, inositol tetraphosphate and its salt, and inositol triphosphate and its salt. The method can realize the separation of the active material and the current collector, the hydrogen production amount is small during the whole stripping process, the current collector obtained after stripping is intact, the separation time is short, and the separation efficiency is high.

The invention relates to the technical field of dust suppression materials, in particular to a multifunctional dust suppressant suitable for a coal mine and a preparation method and application of the multifunctional dust suppressant. Gastrodia elata polysaccharide and solani gum are used as base materials, the gastrodia elata polysaccharide is subjected to carboxymethylation modification so as to remarkably improve the wettability of the gastrodia elata polysaccharide, sodium trimetaphosphate is used as a cross-linking agent, and stable phosphodiester bonds are formed between carboxymethylated gastrodia elata polysaccharide and solani gum molecules under the alkaline condition; sodium dodecyl benzene sulfonate is compounded, so that the wetting and infiltration capacity of the whole system is further enhanced. Through targeted adjustment of raw material selection and raw material ratio cooperation, the prepared dust suppressant can simultaneously realize high wettability, strong cohesiveness and good water retention, and can rapidly wrap coal dust to form a compact consolidation layer with high mechanical strength, actually, the coal dust settling time is less than 20 seconds, the hardness of the consolidation layer exceeds 80 HA, and the dust suppressant has good dust suppressant performance. The dust suppression efficiency on PM10 reaches 98% or above, and good wind erosion resistance and rain erosion resistance are achieved.

The invention discloses a raw material formula capable of inhibiting bacteria, removing peculiar smell and removing formaldehyde and a preparation method of the raw material formula. The raw material formula comprises the following raw materials in percentage by mass: 12-18% of activated carbon powder, 2-4% of diatomite, 2-4% of nano titanium dioxide phosphate, 1.5-3% of a tea polyphenol extract, 0.5-1.5% of citric acid, 0.5-1.5% of plant essential oil, 1-2% of a surfactant, 0.05-0.1% of sodium metaphosphate, 0.05-0.1% of a thickening agent and the balance of deionized water. According to the raw material formula capable of inhibiting bacteria, removing peculiar smell and removing formaldehyde, a compound system with multiple synergistic effects of efficient adsorption, catalytic degradation, bacteria resistance, mildew resistance, aroma adjustment and the like is adopted, the comprehensive performance of a product is improved, and the raw material formula has multiple functions of inhibiting bacteria, removing peculiar smell, removing formaldehyde and the like, and is stable in performance and long in lasting time.

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.

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.

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.

The application relates to the technical field of admixture composite materials, and particularly discloses a composite admixture for sea silt stratum grouting slurry and a preparation method thereof. The composite admixture for sea silt stratum grouting slurry comprises the following components in parts by weight: water reducing agent 1.5-2 parts; anti-permeation agent 3-5 parts; magnesium oxide 5-8 parts; hydroxypropyl methylcellulose 0.1-0.3 parts; sodium dodecyl benzene sulfonate 0.05-0.15; sodium hexametaphosphate 3-6 parts; and modified polypropylene fiber 0.6-1.2 parts. The modified polypropylene fiber is prepared through the following steps: S1, taking polypropylene fiber raw materials, performing ultrasonic cleaning with acetone, drying, and then sequentially performing immersion in an ethanol solution and a calcium chloride solution, washing with water and drying to obtain pretreated polypropylene fiber; and S2, after coating a silane coupling agent on the surface of the pretreated polypropylene fiber, spraying polyacrylamide and active silicate powder to obtain the modified polypropylene fiber. The composite admixture for sea silt stratum grouting slurry can effectively inhibit the expansion of microcracks under the erosion of a marine environment.

The invention discloses an antioxidant waste magnesium alloy-aqueous solution hydrogen production system and a preparation method thereof, and belongs to the technical field of recycling of hydrogen production materials and waste magnesium alloys. The preparation method comprises the following steps: step 1, putting niobium pentoxide and cerium dioxide into a ball milling tank, and respectively carrying out continuous long-time low-energy ball milling and short-time high-energy ball milling; step 2, calcining the mixed powder to prepare a CeNb2O7 material; step 3, after the waste magnesium alloy is mechanically crushed, performing high-energy ball milling on the crushed waste magnesium alloy and a CeNb2O7 material to prepare waste magnesium alloy-CeNb2O7 composite hydrogen production particles, and performing tabletting and forming on the waste magnesium alloy-CeNb2O7 composite hydrogen production particles; and 4, preparing an aqueous solution, namely dissolving ethylene diamine tetraacetic acid, sodium hexametaphosphate and sodium chloride in water to form the aqueous solution. The preparation process is simple, the cost is low, efficient utilization of the waste magnesium alloy is achieved, and the prepared composite hydrogen production material can be stably stored and transported, can quickly respond to hydrolysis hydrogen production and is suitable for industrial production.

The application provides a high-efficiency humidity-controlling energy-saving building material, a preparation method and application thereof, and the preparation method comprises the following steps: step one, preparing a porous substrate; step two, immersing the porous substrate in a humidity-controlling solution for a period of time, and taking out the porous substrate to obtain the high-efficiency humidity-controlling energy-saving building material, wherein the humidity-controlling solution comprises a humidity-controlling composition, the humidity-controlling composition comprises at least three kinds of light metal salts and one other kind of substance, the light metal salts are selected from calcium chloride, copper sulfate, potassium citrate, sodium malate, sodium citrate, sodium phenolate, ammonium chloride, potassium chloride, ammonium lactate, potassium carbonate, lithium bromide and sodium chloride, and the other kind of substance is selected from xanthan gum, silicon dioxide, sodium polyacrylate and sodium hexametaphosphate.

The invention discloses a method for improving the air stability of a layered oxide positive electrode material of a sodium-ion battery, and belongs to the technical field of positive electrode materials of sodium-ion batteries. The method for improving the air stability of the layered oxide positive electrode material of the sodium-ion battery comprises the following steps: firstly, forming a weakly alkaline environment on the surface of the layered oxide positive electrode material of the sodium-ion battery, then sequentially carrying out acid leaching treatment and sintering, and forming a sodium metaphosphate coating layer on the surface of the layered oxide positive electrode material of the sodium-ion battery, the surface of the sodium-ion battery layered oxide positive electrode material is coated with sodium metaphosphate. A reagent used in the acid leaching treatment is a mixed solution of phosphoric acid and absolute ethyl alcohol. The capacity fading degree of the positive electrode material treated by the method is greatly reduced after the positive electrode material is exposed in air for 10 days, and good stability and electrochemical performance can be kept in the circulation process. The method is simple and convenient to operate and suitable for large-scale production, and an effective solution is provided for practical application of the layered oxide positive electrode material of the sodium-ion battery.

The utility model provides a sodium hexametaphosphate discharge diversion trench, which adopts the technical scheme that the sodium hexametaphosphate discharge diversion trench comprises a plurality of diversion trench sections, the diversion trench sections are sequentially spliced front and back, a plurality of cavities are arranged in the diversion trench, heating plates are arranged in the cavities, and the heating plates are electrically connected with a controller through wires. The utility model has the beneficial effects that: (1) by canceling gas combustion heating and adopting an electric heating mode, the heating stability is ensured, smoke dust during combustion can be avoided, the quality of sodium hexametaphosphate is improved, and the complaint rate of customers is reduced; (2) more corrosion-resistant 316L stainless steel is adopted to replace a silicon carbide material which is relatively easy to corrode, so that the generation of impurities is further reduced, the quality of sodium hexametaphosphate is further improved, and the service life of the diversion trench can also be prolonged; and (3) after an electric heating mode is adopted, on-site smoke and dust are reduced, the on-site environmental sanitation is improved, and the risk of occupational diseases of workers is reduced.

The invention provides a reverse flotation combined inhibitor and a reverse flotation method for spodumene in phosphorus-containing lithium ore, and particularly relates to the technical field of ore dressing. The reverse flotation combined inhibitor is used for separating spodumene and amblygonite in phosphorus-containing lithium ore; the reverse flotation combined inhibitor comprises polyacrylic acid and salt thereof, alginate, sulfate, sodium hexametaphosphate and sodium humate. All the components form an adsorption-bridging-covering-stabilizing multi-stage synergistic inhibition mechanism on the molecular scale, the inhibition strength and selectivity on spodumene are remarkably enhanced, and dazelite is basically not inhibited, so that it is guaranteed that the dazelite can be effectively collected by fatty acid collecting agents in reverse flotation and enters foam products, and the flotation efficiency of the dazelite is improved. Finally, the P2O5 content of the spodumene concentrate is stably smaller than or equal to 0.98%, the phosphorus removal rate is larger than or equal to 86.3%, meanwhile, the loss rate of lithium in the amblygonite tailings is controlled to be smaller than or equal to 21.8%, the follow-up smelting impurity removal load is greatly reduced, and the comprehensive recovery rate of lithium resources and the economic value of the concentrate are improved.

The application relates to the field of cement admixtures, and particularly discloses an early-strength synergistic cement grinding aid and a preparation method thereof. The early-strength synergistic cement grinding aid comprises the following raw materials in percentage by weight: F-grade fly ash 35-45%, mineral powder 25-35%, triethanolamine 8-12%, diethanol mono-isopropanol amine 3-7%, sodium hydroxide 1.5-3.5%, sodium hexametaphosphate 0.8-2.2%, polycarboxylic acid water reducing agent mother liquor 2-5%, and deionized water in the remainder. The grinding aid can increase the specific surface area of the obtained cement particles, improve the cement grinding efficiency, and significantly enhance the mechanical strength of the cement.

The application provides a high-potential potassium hydrogen persulfate bottom modification sheet and a preparation method thereof, relates to the field of bottom modification sheets, and comprises the following components in parts by weight: 10-30 parts of potassium hydrogen persulfate composite salt, 2-3 parts of potassium bisulfate, 2-5 parts of potassium sulfate, 1-3 parts of sodium chloride, 1-3 parts of polyethylene glycol 6000, 1-3 parts of polyvinylpyrrolidone, 1-3 parts of magnesium sulfate, 3-5 parts of sodium dodecyl sulfate, 4-10 parts of sodium metaphosphate and 30-60 parts of sodium sulfate. The application also provides a method for preparing the high-potential potassium hydrogen persulfate bottom modification sheet. The application realizes slow dissolution of the drug in water through inclusion technology, continuously releases active peroxide ions, ensures long-acting oxidation and decomposition of the organic matter in the bottom mud, and meets the sustainability requirement of the water product breeding environment for the bottom improvement.

The invention discloses a high-dispersity fiber aqueous solution for soil reinforcement as well as a preparation method and application of the high-dispersity fiber aqueous solution. The high-dispersity fiber aqueous solution for soil body reinforcement comprises the following raw materials: xanthan gum, sodium hexametaphosphate, tea polyphenol and functional fibers, and the functional fibers are selected from cellulose nanofibers; micron-sized polypropylene fibers; and at least one of corn-based nanofibers. The problems that fibers are not uniformly dispersed in a soil body and poor in durability, and an improved material does not meet the low-carbon environment-friendly standard and is poor in compatibility are solved, and the method can be used for reinforcing the soil body and has a good application prospect.

The invention relates to a sealing solution and a preparation method and application thereof, and relates to the technical field of anodic oxidation. The invention provides a preparation method of a sealing solution, which comprises the following steps: (1) mixing a fluotitanic acid solution, a zirconium fluoride solution, a glycerol solution, a sodium metaphosphate solution and water to obtain a stock solution; and (2) adding pure water into the stock solution, and uniformly stirring to obtain a closed solution. When the prepared sealing solution is used for preparing a part oxide layer, a surface film layer with ultrahigh sealing performance and excellent corrosion resistance can be obtained, the vacuum leak rate of the surface film layer is as low as 10-12 Pa.L / s, the corrosion-resistant hydrochloric acid Bubble test exceeds 4 h, and the requirements for ultrahigh sealing performance and excellent corrosion resistance are met.

This invention relates to the field of mineral processing, providing a method for separating high-mud lepidolite ore, comprising the following steps: crushing the high-mud lepidolite ore; adding water to obtain a slurry with a mass concentration of 20%~40%, adding sodium carbonate, sodium hexametaphosphate, and tragacanth gum to the slurry, stirring and adjusting the slurry; adding a collector and performing roughing; and obtaining lepidolite concentrate through two scavenging and two cleaning processes. By optimizing the crushing process and innovating material selection, efficient recovery of high-mud lepidolite ore and improvement of concentrate quality are achieved. Sodium hexametaphosphate and tragacanth gum form a dual dispersion system. Sodium hexametaphosphate, as a traditional dispersant, charges the surface of the mud particles through electrostatic repulsion, preventing their agglomeration; tragacanth gum, as a natural high-molecular polymer, forms a three-dimensional network structure in the slurry, further stabilizing the dispersion state through steric hindrance. The synergistic effect of the two effectively eliminates the adverse effects of high mud content on flotation, fully exposing the lepidolite particles and improving the adsorption efficiency of the collector.

The invention relates to the technical field of surface treatment of conductive terminals, in particular to a chemical nickel plating solution for surface treatment of a composite protection conductive terminal, a method for surface treatment of the composite protection conductive terminal and a product of the composite protection conductive terminal. The cleaning agent comprises the following components: nickel salt, thiourea, a reducing agent, methanesulfonic acid, a complexing agent, tetrasodium iminodisuccinate, a stabilizer, a wetting agent, an interfacial agent, bismuth acetate, sodium hexametaphosphate, ethylhexyl sulfate and the like, wherein the interfacial agent is prepared from hexadecyl trimethyl ammonium bromide and cocamidopropyl betaine. According to the conductive terminal treated by the nickel plating solution, the nickel plating layer is tightly combined with the base body and is not easy to peel off, the corrosion of a corrosive medium can be effectively blocked, and the service life is prolonged. The nickel-plated layer has excellent corrosion resistance and can form a compact protective film in a complex corrosive environment.

The application relates to the field of printed circuit board production processes, in particular to an environment-friendly alkaline degreasing agent for non-conductive printed circuit board materials, a production process and application. The environment-friendly alkaline degreasing agent is composed of the following raw materials: 70-90 g / L of an environment-friendly alkali source, 3-8 g / L of a surfactant, 5-12 g / L of a stabilizing auxiliary agent, 1-8 g / L of modified citrate, 0.1-0.5 g / L of an antioxidant and the balance of water; the environment-friendly alkali source is a mixture of multiple kinds of sodium silicate, sodium hexametaphosphate, potassium hydroxide, trisodium phosphate, monoethanolamine and sodium gluconate, wherein at least one kind is potassium hydroxide; and the stabilizing auxiliary agent is composed of boronized polyisobutylene succinimide, branched polyether and hydrophilic modified cellulose nanocrystals. The above technical scheme can achieve uniformity and good degreasing effect in batch degreasing process, and guarantees the quality and production efficiency of products.

The present application relates to a kind of mobile phone protective cover plate glass frosting powder and application method, the frosting powder is composed of citric acid, ammonium hydrogen fluoride, barium sulfate, kaolin, feldspar powder, bentonite, sodium hexametaphosphate, sodium gluconate and comb type polyoxyethylene ether copolymer, they are made into frosting liquid with deionized water according to the mass ratio 5:1-1:5, after keeping warm and curing in 50 DEG C constant temperature water bath, inorganic fluoride source and organic acid source in frosting liquid fully react to generate glass frosting active ingredient.The present application also adds comb structure polyoxyethylene ether copolymer in frosting liquid, can be adsorbed in the fixed direction on the surface of inorganic mineral particle, so that its surface has the same charge, produces electrostatic repulsion, mineral particle is dispersed after providing a kind of high fluidity frosting liquid, the above-mentioned frosting liquid is used to carry out frosting processing to glass, the glass frosting after frosting is uniform, and the frosting performance is good, can be widely applied to mobile phone protective glass cover plate frosting processing into anti-dazzle glass.