26 results about "Phosphate potassium" patented technology

The application discloses a low-foam acid zinc plating additive and a preparation process thereof, and belongs to the technical field of electroplating additives. The additive comprises a low-foam softener and a water-based brightener. The low-foam softener comprises the following raw materials in percentage by mass: polyethylene imine 0.8-1.2%, monododecyl phosphate potassium 0.03-0.06%, water-soluble polyether amine 0.2-0.6%, and the balance is water. The water-based brightener comprises the following raw materials: 5-hydroxymethyl furfural 0.6-1.2%, L-cysteine salt 0.2-0.4%, 4-amino-2(1H) pyrimidinone 0.1-0.15%, sodium salicylate 0.05-0.1%, citric acid 1-1.5%, alpha-ketoglutaric acid 0.3-0.5%, isoascorbic acid 0.2-0.4%, and the balance is water. The application optimizes the components in the additive, prepares a water-based formula, and the components are uniformly dispersed, the foam amount is low, and the plating layer quality is good.

The invention relates to potassium alkyl phosphate as well as a preparation method and application thereof, and the potassium alkyl phosphate is prepared by taking aminophosphonic acid and 1, 2-alkylene oxide as reaction raw materials. The alkyl phosphate salt provided by the invention contains more than two hydrophobic tail chains and hydrophilic head groups, so that the aggregation capacity of the alkyl phosphate salt in an aqueous solution is effectively improved, the alkyl phosphate salt is arranged more tightly in a fiber surface adsorption layer, and higher surface / interface activity is shown; meanwhile, the hydrophilic head group of the potassium phosphate carries negative charges and contains hydroxyl, intramolecular hydrogen bonds and intermolecular hydrogen bonds are easily formed, the hydration effect is good, and the electrostatic conduction efficiency is effectively improved. After the potassium alkyl phosphate provided by the invention acts on chemical fibers, especially polyester staple fibers, the fibers can be endowed with excellent antistatic property under the condition of lower dosage, and the pollution to the water environment is reduced while the cost of a fiber auxiliary agent is reduced.

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 application discloses a preparation method of waste wood regenerated aggregate concrete, which comprises the following steps: (1) diluting glycerol with anhydrous ethanol to form a base solution, and then adding magnesium potassium phosphate cement, tricalcium silicate powder, sodium alginate powder and fly ash into the base solution to uniformly disperse and form a slurry; then, the slurry is coated on the surface of wood aggregate, and after being dried, modified wood aggregate is obtained; (2) mixing basalt fibers with an alkali solution and then performing heat preservation, and after completion, the basalt fibers are washed to obtain modified basalt fibers; then, the modified basalt fibers, the modified wood aggregate, ordinary Portland cement, gravel, sand, fly ash, a water reducing agent and mixing water are uniformly mixed to obtain a concrete slurry. The technical scheme of the application effectively improves the strength of the concrete containing wood aggregate, and is beneficial to promoting the popularization and application of waste wood in concrete.

The invention aims to protect an organic potassium phosphate liquid fertilizer and a preparation method thereof. The liquid organic potassium phosphate is obtained by esterification of orthophosphoric acid and binary or trihydric alcohol and salt formation with potassium carbonate or potassium hydroxide, can replace inorganic potassium hydrogen phosphate and potassium dihydrogen phosphate to be used as a fertilizer, has excellent leaf affinity, can be quickly absorbed at leaves and roots, enters plants and does not need to be converted into phospholipid, and the organic potassium phosphate can be used as an organic fertilizer. The phosphate can be directly utilized after being absorbed by plants, so that the absorption and utilization rate of phosphorus and potassium is effectively improved, and the effect is quick; meanwhile, the stability of phosphorus is improved, the phosphorus and medium trace elements are not prone to generating precipitates, the phosphorus can be well mixed with pesticides, the fertilizer is suitable for modern fertilization modes such as unmanned aerial vehicle flight prevention, and the defect that leaves are damaged due to traditional high-concentration application of monopotassium phosphate is overcome. The method has the advantages of mild reaction, operation at normal temperature, no need of heating and simple synthesis steps, and is suitable for industrial production and large-scale popularization and application.

The present application relates to the field of potassium hypophosphite production, and particularly relates to a method and system for co-producing potassium hypophosphite and potassium phosphite, which comprises: replacing all the reaction kettles and pipelines with nitrogen to maintain a slight positive pressure in the system; continuously feeding potassium hydroxide aqueous solution and molten yellow phosphorus into the first-stage reaction kettle to generate potassium hypophosphite and phosphine through disproportionation reaction; feeding the reaction liquid into the second-stage reaction kettle to gradually increase the alkali concentration, and convert part of the potassium hypophosphite into potassium phosphite; feeding the reaction liquid into the third-stage reaction kettle to maintain the alkali concentration at a certain level, and convert part of the potassium hypophosphite into potassium phosphite and release hydrogen; feeding the reaction liquid into the fourth-stage reaction kettle to maintain the alkali concentration at a certain level, and continuously discharge the product containing the mixture of potassium phosphite and potassium hypophosphite from the fourth-stage reaction kettle after the reaction approaches equilibrium, thereby improving the production efficiency, reducing the raw material cost, improving the process safety, thermal energy utilization efficiency and product quality, and realizing the comprehensive utilization of the gas byproducts.

The invention discloses a rubber powder surface modification method based on MgO coating loading and application of the rubber powder surface modification method in potassium magnesium phosphate cement. Belongs to the field of cement-based material modification. The invention aims to solve the problem that the interface inertia of high-hydrophobicity rubber powder cannot be effectively improved by the existing modification method. The method comprises the following steps: carrying out alkali solution pretreatment on rubber powder; adding the pretreated rubber powder into an alkaline tannic acid solution or an acidic silane coupling agent solution, slowly adding MgO dispersion liquid while stirring, and reacting; and then standing, aging, cleaning and drying. According to the invention, the compatibility problem of the rubber powder as a flexible filler in a cement-based material is effectively improved, and the soft water erosion resistance and damping performance of the material are improved, so that the application range of the material in high-durability structure repair, roads and bridges, railway engineering and functional environment-friendly building materials is widened.

The invention provides a silicon-potassium-phosphorus-zinc-magnesium slow-release fertilizer and a preparation method thereof.The silicon-potassium-phosphorus-zinc-magnesium slow-release fertilizer comprises an inner core and a protective shell covering at least part of the surface of the inner core; the inner core comprises a spongy framework and particles filled in and on the surface of the spongy framework; the spongy framework is of a spongy structure based on a Si-O-P bridged bond generated by reaction of a framework raw material system containing boron-containing potassium phosphate silicate and silicon phosphate, and the particles comprise boron-containing potassium phosphate silicate, biochar and an inorganic mineral material; the protective shell comprises at least one of zinc silicate or magnesium silicate; the inner core is compounded with a nutrient material through a spongy framework, so that a stable structure and a slow-release basis of nutrients are realized; the spongy framework provides a high specific surface area and a porous structure to adsorb and fix nutrients, so that the physical strength of the particles is improved, the material viscosity is remarkably reduced, the subsequent drying efficiency is improved, the hygroscopicity of the fertilizer particles is reduced, and the effects of high strength, quick drying, low hygroscopicity and capability of realizing gradient release of the nutrients are achieved.

The invention relates to the technical field of magnesium phosphate cement materials, and particularly discloses a magnesium potassium phosphate cement-based material with high compactness and high salt corrosion resistance and application of the magnesium potassium phosphate cement-based material. The magnesium potassium phosphate cement-based material is prepared from the following components in parts by weight: 30 to 40 parts of dead burned magnesium oxide, 15 to 20 parts of monopotassium phosphate, 3 to 5 parts of retarder, 0.01 to 0.03 part of crystalline phosphate, 30 to 40 parts of fine aggregate and 8 to 13 parts of mixing water. Wherein the molecular formula of the crystalline phosphate is KNaMg2 (PO4) 2.14 H2O. By introducing the crystalline phosphate in a special structural form, the hydration evolution path and the microstructure of the magnesium potassium phosphate cement-based material in a salt erosion environment are effectively improved, and the salt erosion resistance is remarkably improved.

The application discloses a kind of complex fertilizers for clumping bamboo and a preparation method thereof, and belongs to the technical field of fertilizer manufacturing.The complex fertilizers for clumping bamboo of the application are of a complex granular structure, which comprises, from inside to outside, (1) a quick-acting nutrient core; (2) a bioactive synergistic layer wrapped outside the quick-acting nutrient core; and (3) a chitosan functional coating wrapped outside the bioactive synergistic layer.By means of the innovative ternary composite structure of "core-layer-film", the application realizes the intelligent controlled release of nutrients; by introducing the core functional component "mesoporous potassium phosphate modified bamboo charcoal", the application solves the safety hazard of excessive heavy metals in bamboo shoots while ensuring nutrient supply; and by means of the scientifically proportioned "functional enhanced composite microbial agent", the application significantly promotes root growth and effectively inhibits soil-borne diseases.These technical features support and cooperate with each other, and ultimately realize the multiple beneficial effects of yield and income increase, quality and efficiency improvement, soil fertility improvement, and green safety.

The invention discloses an activation method of low-grade potassium phosphate rock, which belongs to the field of phosphate rock processing, and comprises the following steps: S1, potassium phosphate rock pretreatment; s3, performing mechanical ball milling for the second time; s4, medium and low temperature heat treatment; and S5, obtaining a product. The product obtained by the method not only can provide nutrient elements such as nitrogen, phosphorus, potassium and the like, but also can provide various beneficial trace elements, supplement plant nutrients and beneficial elements and promote plant nutrient balance, has an all-element continuous supplement effect, and realizes all-element utilization of potassium phosphate ore. The whole technological process of the phosphorus activation method for the potassium phosphate ore can retain beneficial minerals, no phosphogypsum tailings are generated, and the phosphorus activation method has important significance on comprehensive utilization of resources and ecological environment protection. The phosphorus activation method of the potassium phosphate only needs mechanical ball milling of the ball mill and medium and low temperature heat treatment in the muffle furnace, and is simple to operate, low in energy consumption, free of end treatment and high in universality.

The application relates to a synthesis method of a Bose factor, which comprises the following process steps: step (1): mixing xylose, acetylacetone and an alkaline substance in a solvent and heating to react to obtain a first intermediate product crude product; step (2): mixing potassium phosphate buffer, the first intermediate product crude product obtained in step (1), a KRED2935 crude enzyme solution, glucose dehydrogenase, glucose and beta-nicotinamide adenine dinucleotide phosphate monosodium salt, and converting at 25-35 DEG C for 1-2 h; after the conversion is completed, adding ethyl acetate to terminate the reaction, extracting, combining the organic phases, adding anhydrous sodium sulfate to dry, and then removing the solvent under reduced pressure through rotary evaporation to obtain the Bose factor. The application can obtain the Bose factor with high stereoselectivity, the conversion rate is high, the obtained product is easy to separate, and the problems of low stereoselectivity and difficult process amplification production in the prior art are overcome.

The invention relates to the field of chemical production, in particular to a dipotassium phosphate compound fertilizer production system which comprises a pulverizer, a stirrer, a granulator, dehumidification equipment, a dryer, a cooler, a coating machine and packaging equipment. And the upper rotating plate is rotationally connected with a dehumidification outer cylinder, a dehumidification inner cylinder is arranged in the dehumidification outer cylinder, a discharging cavity is formed between the dehumidification outer cylinder and the dehumidification inner cylinder, and filtering holes are formed in the dehumidification outer cylinder and the dehumidification inner cylinder. The dehumidifying outer cylinder is rotated to a designated position, a gear ring on the dehumidifying outer cylinder is engaged with a gear, a motor operates to drive the gear to rotate, the gear ring drives the dehumidifying outer cylinder to rotate, and dehumidification is performed through centrifugal force generated by rotation, so that the drying time of the dryer is shortened, and abrasion among fertilizer particles is reduced; the influence on the body health of production personnel due to more dust generated by the compound fertilizer production system in the later period is avoided.

The invention belongs to the technical field of chemical production, and provides a preparation method of a mineral conditioner based on phosphorus-potassium synergistic activation of low-grade potassium phosphorite, and synchronous deconstruction and nutrient release of potassium feldspar and apatite are realized through a mechanical ball milling-thermal activation-hydrothermal activation three-stage synergistic activation system. The method comprises the following steps: performing mechanical ball milling on potassium phosphate rock powder and ammonium sulfate according to a mass ratio of 20: 1 for 1 hour, performing thermal activation at 400 DEG C for 6 hours, mixing with quick lime according to a ratio of 7: 2, performing ball milling, and performing hydrothermal reaction at 180 DEG C for 16 hours to obtain a product. According to the invention, the problems of difficult synergism of phosphorus and potassium activation, complex flow and high energy consumption in the traditional process are solved, and the obtained mineral conditioner has main nutrients of phosphorus and potassium and various trace elements, and can be directly applied. The method is suitable for efficient utilization of low-grade potassium phosphate ore resources, and has the advantages of simple process, low energy consumption, environmental friendliness and the like.

A fertilizer containing a mixture containing potassium ammonium phosphate, slow-release calcium, and immediate-release calcium and methods of making and using the fertilizer.

This invention discloses a production process and a slow-release potassium polyphosphate fertilizer, belonging to the field of fertilizer technology. The slow-release potassium polyphosphate fertilizer of this invention is obtained by mixing and compressing modified hydrotalcite, composite polylactic acid, potassium polyphosphate, and potassium pentahydrogen bisphosphate into tablets. The modified hydrotalcite is obtained by intercalating hydrotalcite with an amino acid surfactant. The amino acid surfactant is obtained by amidation reaction of sodium amino acids and coconut oil. The composite polylactic acid is obtained by ring-opening polymerization of N,N-dihydroxyethylglycine and lactide. The slow-release potassium polyphosphate fertilizer prepared by this invention has a good slow-release effect and is beneficial to crop growth.

This invention discloses a water-soluble fertilizer coloring method that enhances the coloring process, belonging to the field of water-soluble fertilizers. The method includes the following steps: S1, adding glycerol, fatty alcohol polyoxyethylene ether, dimethyl sulfoxide, and pure water to a stirring container and starting stirring to obtain a mixed solvent; S2, adding sodium lignosulfonate to the mixed solvent and continuing stirring until the sodium lignosulfonate is completely dissolved to obtain a dispersion; S3, adding potassium pyrophosphate to the dispersion and continuing stirring until the potassium pyrophosphate is completely dissolved to form a mixed solution one, adjusting the pH to form a stable system solution; S4, slowly adding a water-soluble pigment to the stable system solution and continuing stirring to obtain a colorant; S5, mixing the colorant from S4 with fertilizer, wherein the weight of the colorant is 1%~10% of the fertilizer weight, and continuing stirring to obtain a water-soluble fertilizer product. This invention completes coloring solely through material mixing. After coloring, it can significantly improve fertilizer nutrient utilization, enhance crop stress resistance, and also help improve pigment dispersibility and the binding effect between the colorant and fertilizer.

Disclosed is a fertilizer containing a mixture containing one or more of potassium phosphate, calcium sulfate, magnesium ammonium phosphate, and calcium ammonium phosphate. Methods of making and using the fertilizer granule are also disclosed.

The invention discloses a special fertilizer for corn liquid spray and drip irrigation and a preparation method thereof, and belongs to the technical field of fertilizer production. The special liquid fertilizer for spray and drip irrigation of corn is prepared from the following raw materials: a urea-ammonium nitrate solution, polyglutamic acid, acid mineral source potassium fulvate, potassium formate, potassium tripolyphosphate, boric acid and water. Balanced nutrition is provided through the urea-ammonium nitrate solution, potassium tripolyphosphate and potassium formate, the synergistic interaction effect of the acid mineral source potassium fulvate and polyglutamic acid is mainly relied on, and through cooperation of the acid mineral source potassium fulvate and polyglutamic acid, soil metal ions can be effectively chelated to prevent a phosphate fertilizer from being fixed, water retention is powerful, the drought resistance is enhanced, root development is stimulated, nutrient absorption is promoted, and the yield is increased. The fertilizer utilization rate, the crop yield and the stress resistance are obviously improved. The product has good stability, is completely water-soluble, and does not block a drip irrigation or sprinkling irrigation system.

The invention provides a cement-based steel structure fireproof coating containing aerogel composite modified potassium magnesium phosphate and a preparation method of the cement-based steel structure fireproof coating, and belongs to the technical field of fireproof coatings. Sintered magnesium oxide, monopotassium phosphate, redispersible latex powder, water, borax and (or) cane sugar are used as binding material components, modified silicon dioxide aerogel, hollow white floating beads and expanded and vitrified small balls are used as light material components, and polypropylene fibers are used as a toughening component. The silicon dioxide aerogel is modified through the aluminum-zirconium composite oxide, the mechanical property and heat insulation performance of the silicon dioxide aerogel are enhanced, a nano-micron-millimeter multi-scale heat insulation layer is formed in cooperation with the hollow white floating beads and the expanded and vitrified small beads, heat conduction at high temperature is effectively blocked, and the heat insulation effect is improved. The fireproof coating has good heat insulation and fire resistance, and the product is environment-friendly and pollution-free.

The invention relates to an antifogging composition comprising: - an n-octyl phosphate potassium salt or an iso-octyl phosphate potassium salt, - a glycol ether. The invention also relates to the use of said antifogging composition as an antifogging agent to prevent fogging of a substrate.

The application relates to the technical field of road quick-setting light materials, and particularly discloses a super-early-strength quick-setting light concrete material, a preparation method and application thereof, the concrete material comprises the following components: 28-35 parts of magnesium oxide, 14-17 parts of phosphate, 12-15 parts of portland cement, 5-6 parts of borax, 8-10 parts of fly ash, 4-6 parts of water-based epoxy resin, 4-6 parts of foaming liquid and 13-17 parts of water. The potassium magnesium phosphate cement in the concrete material can make the repairing material quickly set, and the purpose of quickly opening traffic is achieved. The addition of the water-based epoxy resin greatly improves the water resistance and bonding performance of the material, and controls the setting time of the potassium magnesium phosphate cement. The addition of the fly ash can greatly reduce the cost of the repairing material, and enhances the late strength of the repairing material; after the foaming liquid is added, the density of the system is reduced, the volume is increased, the workability in the construction process is improved, and the construction is facilitated.

The invention discloses a preparation method of a chromatographic purification medium for efficiently separating subunit viruses. Comprising the following steps: (1) preparing a base frame material; (2) adding dextran sulfate sodium salt into the base frame material; (3) adding a phosphate buffer solution, a phase transfer catalyst and a cross-linking agent; (4) reacting under a staged alkaline pH condition, wherein the pH of the second stage is higher than that of the first stage; and (5) after the reaction is finished, washing with alkali liquor and purified water for multiple times to obtain the chromatography purification medium. The molecular weight of the dextran sulfate sodium salt is 25 to 35 kDa, preferably 30 kDa. The base frame material is agarose microspheres, the agarose microspheres are prepared from agarose with the concentration of 3.0%-3.5%, the particle size of the agarose microspheres is 45-165 microns, the mass ratio of the agarose microspheres to the purified water to the dextran sulfate sodium salt is 5: (1-1.5), the phosphate buffer solution is tripotassium phosphate or sodium phosphate, and the concentration of the phosphate buffer solution is 0.005-0.02 mol / L, preferably 0.01 mol / L.

The invention discloses a phosphorus source substitution-based potato green pesticide fertilizer and a preparation method thereof. The pesticide-fertilizer composition is a topdressing aqueous solution and comprises nitrogen (15-20 g / L), phosphorus (P2O5 accounts for 7-8 g / L, and phosphite accounts for 40%-50%) and potassium (K2O accounts for 10-15 g / L); the preparation method comprises the following steps: fully and uniformly mixing monopotassium phosphate, potassium nitrate, potassium phosphite, urea, potassium sulfate, magnesium sulfate, trace elements, an anti-blocking agent and the like with similar particle sizes to form three major element powder water-soluble fertilizers of 25-14-14, 19-19-19 and 14-8-30; the fertilizing method comprises the following steps: applying base fertilizer (15-15-15 compound fertilizer, 400-500 kg / ha) during planting, and carrying out drip irrigation topdressing (1000 L / ha, 5-10 times) after the seedling stage. The method can improve the potato yield, enhance the late blight resistance, significantly reduce the disease index of potato late blight, reduce the use of chemical pesticides, and promote the development of green agriculture.

The invention relates to the technical field of agricultural production, and particularly discloses a fertilizing method for promoting plant growth and increasing the phosphate fertilizer utilization rate. According to the method, specific phosphorus sources are applied in stages in a plurality of key growth periods such as 8-leaf expansion, 11-leaf expansion, 17-leaf expansion, a spinning period and a post-spinning period of corn, a fertilizer combination of a nitrogen fertilizer and a potassium fertilizer is matched, and the phosphorus sources are ammonium polyphosphate, monoammonium phosphate, urea phosphate, monopotassium phosphate or acidic potassium phosphate. The fertilizing method provided by the invention can effectively improve the morphological indexes of leaf area, stem diameter, plant height and the like of corn plants, and meanwhile, the total phosphorus content of each organ of the plants is remarkably improved, so that the synergistic improvement of crop growth and phosphate fertilizer utilization rate is realized.

The application discloses a kind of lightweight fire-retardant multilayer structure wallboard material and preparation method thereof, specifically related to the field of new wall material for insulation or surface protection, wallboard material includes by mass fraction: silicate clinker 30~40 parts;Granulated blast furnace slag powder 8~14 parts;Silica fume 2~6 parts;Magnesium oxide 12~20 parts;Potassium dihydrogen phosphate 8~14 parts;Borate retarder 0.3~0.8 parts;Delayed hydration particles 8~16 parts;Zeolite 4~8 parts.Formation of magnesium potassium phosphate network and calcium silicate hydrate network in time sequence interpenetration under 20 degrees Celsius condition after mixing, and by surface coating inorganic hydrophobic coating Delayed hydration particles form banded porous structure zone along the thickness direction within 12~72 hours, so that the surface crack generated by quenching is deflected in the structure zone and dissipates energy without penetrating to the interface, so as to avoid systematic peeling.