92 results about "Diammonium phosphate" patented technology

The invention relates to the technical field of surface strengthening treatment and coating preparation, in particular to a micro-arc oxidation electrolyte, a preparation method of the micro-arc oxidation electrolyte and a preparation method of an oxide ceramic coating on the surface of a magnesium-copper dissimilar metal material component. The invention provides a micro-arc oxidation electrolyte. The micro-arc oxidation electrolyte comprises a main film-forming agent, an arcing aid, a pH regulator, a corrosion inhibitor and water, the main film-forming agent comprises ammonium fluozirconate and / or potassium fluozirconate; the arcing aid comprises one or more of disodium hydrogen phosphate, sodium dihydrogen phosphate, ammonium dihydrogen phosphate and diammonium hydrogen phosphate; the corrosion inhibitor comprises one or more of hexamethylenetetramine, ammonium bifluoride and triethanolamine. The micro-arc oxidation electrolyte breaks through the problem that valve metal and non-valve metal cannot be subjected to arc discharge at the same time for micro-arc oxidation treatment in the micro-arc oxidation process.

The invention discloses a special slow-release fertilizer for wheat in saline-alkali soil as well as a preparation method and application thereof, and relates to the technical field of slow-release fertilizers. The fertilizer contains various functional substances and a microbial agent, and specifically contains the following components in parts by weight: 5-10 parts of urea, 0.5-3 parts of potassium chloride, 5-10 parts of diammonium phosphate, 2-5 parts of triple superphosphate, 0.5-1 part of magnesium sulfate, 0.5-1 part of zinc sulfate, 0.2-0.5 part of boric acid, 0.2-0.4 part of resveratrol, 0.5-1 part of alginic acid, 0.3-0.5 part of fulvic acid and 1.0 part of a microbial mixed agent, and 0.1 to 0.3 part of a surfactant. According to the fertilizer, all the raw material components are reasonably compounded, the physicochemical properties of saline-alkali soil can be effectively improved while the growth requirement of wheat in the saline-alkali soil is met, and meanwhile the utilization rate of the fertilizer can be increased through the slow release effect, and damage to the environment is reduced.

The invention provides a trichoderma fungicide for promoting growth of allium plants and application of the trichoderma fungicide, the trichoderma fungicide is a trichoderma harzianum strain MCBC3, the trichoderma fungicide and diammonium phosphate are applied in a combined mode, the application amount of the diammonium phosphate is 15 kg / mu, and the application amount of the trichoderma fungicide is 1 L / mu; existing trichoderma resource development focuses on a normal soil environment, the trichoderma harzianum MCBC3 is screened out from the saline-alkali soil for the first time, the salt resistance and the alkali resistance of the trichoderma harzianum MCBC3 directly aim at double stress of high salt and high alkali of the saline-alkali soil, and the technical bottlenecks that a traditional strain is poor in adaptability and low in survival rate in an extreme environment are solved.

This invention belongs to the field of new materials in novel tobacco products, specifically disclosing a method for improving the sensory evaluation quality of novel tobacco sheets produced using the slurry method. The method involves obtaining a slurry containing a binder and tobacco ash, adding additives to the slurry and adjusting the pH to 3-6, followed by stirring and reacting at a temperature of 50-95°C and low pressure to obtain a modified slurry. The modified slurry is then spread and dried to obtain novel tobacco sheets produced using the slurry method. The additives include additive A, additive B, and additive C. Additive A is at least one of ammonium dihydrogen phosphate, ammonium phosphate, and diammonium hydrogen phosphate; additive B is a compound having Formula 1; and additive C is a monosaccharide. The process described in this invention can selectively increase the release content of target aroma substances, thereby improving the smoking experience of the resulting novel tobacco sheets.

A method of recovery of ammonium phosphate comprises providing a start material (100) comprising struvite into a first aqueous process liquid (101) comprising monoammonium phosphate. The first aqueous process liquid (101) is mixed. Thereby the start material (100) comprising struvite is converted into monoammonium phosphate and / or diammonium phosphate in solution and a residue (103) comprising newberyite as a precipitate. The residue (103) is separated from the first aqueous process liquid (101), thereby giving a second aqueous process liquid (104) comprising monoammonium phosphate and / or diammonium phosphate. At least a part of said second aqueous process liquid (104) or a part of an aqueous process liquid (107, 112) emanating therefrom is returned into the first aqueous process liquid. Phosphoric acid (110) is added. A method for extracting nitrogen from reject water, an arrangement (1) for recovery of monoammonium phosphate and a system for extracting nitrogen from reject water is also disclosed.

This invention relates to a method for the graded utilization of wet-process phosphoric acid and the co-production of food-grade phosphoric acid and ammonium phosphate, belonging to the field of phosphoric acid chemical technology. The method first purifies the raw phosphoric acid, with the main process involving multi-stage extraction and back-extraction to obtain food-grade phosphoric acid. For the byproduct raffinate acid, no complex purification is required; instead, a slurry process is used directly to prepare fertilizer. When producing diammonium phosphate, the final neutralization pH is controlled at 8.0-8.5, and the degree of ammoniation is 1.8-2.0. When producing monoammonium phosphate, the raffinate acid is mixed with slag acid and filter solids, and a small amount of raw material acid is added to neutralize to a pH of 4.0-4.5, with a degree of ammoniation of 1.0-1.1. This invention overcomes the problems of high slurry viscosity, equipment blockage, and low product grade caused by the direct fertilizer production of raffinate acid with a simplified process. Furthermore, it coordinates with the disposal of system waste in monoammonium phosphate production, truly achieving high-value utilization and clean production of all components of wet-process phosphoric acid.

The invention discloses a rice-shrimp co-cropping-based cadmium-polluted rice field safe utilization method, which comprises the following steps that 1, a cadmium-polluted rice field to be treated is selected, the cadmium content in the cadmium-polluted rice field to be treated is 0.40-1.50 mg / kg, and the pH range of the cadmium-polluted rice field is 5.5-6.5; 2, a compound fertilizer containing urea, diammonium phosphate and potassium sulfate is applied to the cadmium-polluted rice field to be treated, and rice seedlings are transplanted according to the line spacing of 20-25 cm and the plant spacing of 10-15 cm after ploughing and uniform mixing; 3, after the seedlings turn green, young Australian freshwater lobsters with the body length of 2-5 cm are put in; 4, harvesting rice and lobsters in the rice mature period. The invention aims to significantly reduce the cadmium content in rice through the rice-shrimp co-cropping system and reduce the effectiveness of soil cadmium.

The invention discloses nutritional dredged sediment modified carbon-sequestration ecological concrete and a preparation method thereof. The carbon-sequestration ecological concrete is prepared from the following components in parts by weight: 180 to 200 parts of coarse aggregate, 70 to 90 parts of cementing material, 10 to 15 parts of nutritional modified dredged sediment, 28 to 32 parts of water and 3 to 6 parts of polycarboxylate water reducing agent, the preparation method of the nutritional modified dredged sediment comprises the step of soaking dried dredged sediment in a composite modification solution, wherein the composite modification solution consists of 80-100g / L of diammonium phosphate solution and 0.2-0.5% of chitosan solution. The dredged sediment is subjected to nutritional modification treatment through the composite modification solution, then the carbon-sequestration ecological concrete is prepared, the compressive strength, the supporting performance and the activation effect on carbon-sequestration functional microorganisms are improved, and high-value resource utilization of waste is achieved.

The invention discloses a lithium source impurity removal method, lithium phosphate and a preparation method thereof, and belongs to the technical field of battery materials. The invention solves the problem of how to provide a method for preparing high-purity lithium phosphate from a lithium source in lithium ore. The method comprises the step of removing impurities from a lithium source, and specifically comprises the following steps: roasting lithium ore, and leaching a product obtained after roasting to obtain a lithium sulfate solution; adding one or more of ammonia water, ammonia gas or liquid ammonia into the lithium sulfate solution to adjust the pH value to 8-11, and then filtering to obtain primary purified mother liquor; adding monoammonium phosphate or / and diammonium phosphate into the primary purified mother liquor, adjusting the pH value to 8-11 again, reacting under the stirring condition, and filtering to obtain secondary purified mother liquor; and adding EDTA (Ethylene Diamine Tetraacetic Acid) into the secondary purified mother liquor to obtain the lithium sulfate purified mother liquor. And adding one or more of ammonia water, ammonia gas or liquid ammonia into the monoammonium phosphate solution to adjust the pH value to 8-11, and adding the purified lithium sulfate mother liquor into the monoammonium phosphate solution to obtain the high-purity lithium phosphate.

The application discloses a kind of green repair upgrading regeneration technology of decommissioned lithium iron phosphate positive material, comprising the following steps: lithium salt and tea polyphenol are completely dissolved in solvent, to obtain reducing repairant solution;Decommissioned lithium iron phosphate positive material and direct reduction repairant solution are mixed, to obtain mixed suspension;The suspension is loaded into reaction kettle and placed in oven and heated and kept for a period of time, after cooling, precipitate is collected after washing;Precipitate is mixed with aluminum nitrate and diammonium hydrogen phosphate solution, after evaporating dry, add trace lithium salt under nitrogen atmosphere annealing, to obtain upgraded regeneration aluminum phosphate / lithium phosphate coated lithium iron phosphate positive material.The upgrading repair regeneration technology uses abundant natural green reducing repairant-tea polyphenol, and is environmentally friendly and can be recycled and reused;At the same time, the price of aluminum phosphate / lithium phosphate coating layer is low, and the electrochemical performance of lithium iron phosphate waste powder is obviously repaired and improved, which is suitable for industrialization and application.

The invention relates to the related technical field of measurement of the content of fluticasone propionate emulsifiable paste, in particular to a method for detecting the content of paste by adopting a high performance liquid chromatography, and particularly relates to a method for measuring the content of fluticasone propionate emulsifiable paste by adopting the high performance liquid chromatography, in particular to a method for detecting the content of fluticasone propionate emulsifiable paste by adopting the high performance liquid chromatography. Comprising the following steps: preparing a mobile phase from a diammonium hydrogen phosphate buffer solution (the pH value is 2.0-5.0), methanol and acetonitrile by adopting an octadecyl silane bonded silica gel column; and carrying out isocratic elution. According to the method disclosed by the invention, the diammonium hydrogen phosphate buffer solution-methanol-acetonitrile with a specific ratio is adopted as a mobile phase, and a chromatographic system in which an octadecyl silane bonded silica gel column and a guard column are connected in series is combined, so that the interference of oily auxiliary materials in a cream matrix is effectively eliminated, and the detection specificity and the separation effect are remarkably improved; besides, key chromatographic parameters such as column temperature, flow velocity and detection wavelength are optimized, and a scientific test sample pretreatment process is matched, so that the accuracy and reliability of a content measurement result are guaranteed.

The preparation method comprises the following steps: (1) adding a lead salt and diammonium hydrogen phosphate into deionized water, stirring at room temperature, dropwise adding ammonia water into the deionized water in the stirring process, continuously stirring to obtain a mixed solution, adding the mixed solution into a hydrothermal kettle for reaction at the hydrothermal temperature of 100-200 DEG C for 10-30 hours, and filtering to obtain a filtrate; carrying out solid-liquid separation on a white product after the reaction to obtain a solid matter, drying the solid matter at 50-60 DEG C, and then carrying out high-temperature calcination to obtain lead phosphate powder; and (2) vulcanizing the lead phosphate powder to prepare the infrared detection material based on vulcanized lead phosphate. The prepared infrared detection material based on sulfurized lead phosphate is used for an infrared detector. The synthesis method has the beneficial effects that 1, the synthesis method is simple and low in cost, the used solvent is environment-friendly and green, and the synthesis method is suitable for large-scale production; and 2, the vulcanized lead phosphate disclosed by the invention has an ultra-low band gap and has the feasibility of infrared detection.

The invention belongs to the field of petrochemical engineering, and relates to a single atom and cluster coexisting Pt-Ni2P / Beta n-hexane hydroisomerization catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dissolving nickel nitrate hexahydrate in water, dropwise adding nitric acid to adjust acidity, and adding diammonium hydrogen phosphate to obtain a Ni-P precursor solution; a Beta molecular sieve is impregnated in the Ni-P precursor solution in an equivalent volume mode, and Ni2P / Beta is prepared through air drying, drying, air calcination and hydrogen reduction; and dissolving platinum acetylacetonate in acetone to prepare a platinum precursor solution, carrying out equivalent-volume impregnation on Ni2P / Beta, carrying out air drying, drying, calcining in air, and carrying out hydrogen reduction to obtain the single atom and cluster coexisting Pt-Ni2P / Beta catalyst. The method is easy and convenient to operate and mild in condition, the hydrogen activation capacity and isomerization selectivity are remarkably improved through the synergistic effect of Ni2P and trace Pt single atoms / clusters, and efficient hydroisomerization of n-hexane is achieved while the use amount of precious metal and the preparation cost of the catalyst are reduced.

1. Name of the designed product: packaging bag (drip irrigation diammonium phosphate). 2. Use of the designed product: used for packaging products. 3. Design points of the designed product: the combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view. 5. The designed product is a planar product, and the left view, right view, top view, and bottom view are omitted.

Described herein are liquid fire retardant concentrate compositions comprising mixtures of ammonium phosphate fire retardants. Specifically, liquid fire retardant concentrate compositions comprising one or more of monoammonium phosphate (MAP), diammonium phosphate (DAP), and ammonium polyphosphate (APP) are described herein. The ammonium phosphate fire retardant(s) is typically suspended and / or dissolved in a liquid, typically with the fire retardant(s) incorporated into the composition in powder, or granular form. In certain aspects of the present invention, the compositions provided may exhibit one or more advantages as compared to current liquid concentrate fire retardants, including enhanced strength (i.e., a higher proportion of fire retardant component per unit volume), reduced toxicity, and / or reduced corrosion.

The invention discloses preparation and application of a plant element insecticide extracted based on a microbial extraction technology, and relates to the technical field of insecticide preparation, the preparation steps are as follows: S1, preparing raw materials including 10-900 parts of a basic microbial agent, 10-700 parts of nutrient substances, 10-500 parts of plant raw materials, 10-400 parts of a functional microbial agent and 10-300 parts of an enzyme preparation; the basic fungicide and the nutrient substances respectively comprise activated EM symbiotic bacteria, molasses, yeast, flour photosynthetic bacteria, diammonium phosphate, mineral source potassium fulvate, lactic acid bacteria and amino acid stock solution. According to the method, after the soil fertility is improved through microorganisms, the soil is activated, and the microbial insecticide containing plant elements is applied, the microorganisms are directly added to the soil, various animal and plant residues and mineral substances in the soil can be more effectively decomposed through supplementation of the soil microorganisms, soil humus is rapidly formed, and the structure and physical and chemical properties of the soil are improved; pest control is obvious; the microbial insecticide containing the plant elements contains a large number of beneficial microorganisms.

The utility model relates to the technical field of tail gas treatment, and discloses an ammonia gas recovery treatment device for diammonium hydrogen phosphate production, which comprises a tower body, the bottom of the tower body is fixedly connected with a base, the top of the base is provided with a circulating component, and the middle of the base is provided with a collecting component; the circulating assembly comprises a water tank, the water tank is fixedly connected to the top of the base, a water pipe is fixedly connected to the middle of the water tank, and a circulating pump is arranged in the middle of the water pipe. According to the utility model, water in the water tank is sprayed out from the spray head through the water pipe and the spray pipe by the circulating pump, so that the contact area with ammonia gas is increased, the driving motor drives the spiral stirring blade to rotate, the collected ammonia water is stirred, the ammonia gas can be more fully absorbed by the water, and then water vapor is separated out through the gas-liquid separator; the flange plate is externally connected with the ammonia gas collecting tank, so that the ammonia gas recycling efficiency is further improved.

The invention belongs to the field of fertilizer and rice planting, and discloses a slow mixed fertilizer for improving the quality of rice in saline-alkali soil, which is prepared from the following components in parts by mass: 10-12 parts of urea, 21-25 parts of sulfur coated urea, 39-47 parts of 90-day resin coated urea, 14-22 parts of resin coated diammonium phosphate and 10 parts of resin coated potassium chloride. The slow-mixing fertilizer is applied at one time during paddy field soil preparation, and the nitrogen application amount is 65-80% of the local conventional nitrogen application amount. By optimizing the proportion of nitrogen, phosphorus and potassium and combination of slow-release materials, nutrient release is dynamically matched with fertilizer requirement in the key growth period of rice, nitrogen loss is remarkably reduced, the fertilizer utilization rate is increased, and the yield is stably increased; meanwhile, the processing quality, the appearance quality and the taste quality of the rice are improved; the nitrogen application amount is reduced to 65-80% of the conventional nitrogen application amount, the non-point source pollution risk is remarkably reduced, and both high-quality production and ecological protection are considered.

The application discloses a novel modified biochar and a preparation method and application thereof, and preparation comprises the following steps: placing calcium-rich solid waste raw materials in a crusher for crushing treatment, fully mixing the biochar with the removed dissolved organic matter at a mass ratio of 1:(1-4), adding pure water at a mass-volume ratio of 1g:(60-100)mL, and adding diammonium hydrogen phosphate and ammonium dihydrogen phosphate at a calcium-phosphorus ratio of 1:(2.5-3.34); all raw materials are placed in a ball mill jar, the mass ratio of the raw materials to zirconia balls before ball milling is 1:(10-15), and ball milling is carried out at a rotating speed of 250-600 r / min for 6-12 h; the biochar slurry after ball milling is moved to a centrifuge tube, and centrifugation is carried out at a rotating speed of 5000 r / min for 10 min; the solid precipitate is washed with pure water for 3 times to remove excessive phosphate, and is placed in an oven for drying, so as to obtain the ball-milled novel modified biochar; the novel modified biochar has the advantages of simple synthesis method, low energy consumption, easy separation by using a centrifuge, and high adsorption performance on heavy metals.

The invention discloses a preparation method of a modified aramid pulp reinforced rubber material, and belongs to the technical field of rubber reinforced materials. The method comprises the following steps: firstly, forming micron-sized pores in the surface of aramid pulp through synergistic enzymolysis activation of diammonium hydrogen phosphate and cellulase; then nano TiO2 is embedded into the surface layer of the fiber under the assistance of ionic liquid, and a mechanical interlocking structure is constructed; and finally, carrying out surface treatment on the fibers through self-polymerization reaction of a silane coupling agent and dopamine in a Tris buffer solution, premixing the fibers with hydrogenated butadiene-acrylonitrile rubber, and refining by an open mill to obtain the modified aramid pulp reinforced rubber material. The surface structure of the aramid pulp is gradually improved through a bionic multi-stage modification process (multi-stage treatment of an anchoring layer, an embedding layer and a bonding layer, and construction of a'plant root system-soil 'bionic structure), so that the problem of insufficient improvement of the mechanical property of the aramid pulp enhanced hydrogenated butadiene-acrylonitrile rubber in the prior art is effectively solved, and the comprehensive performance of a rubber material is remarkably improved.

The invention provides a preparation method and application of ammonium ferric citrate. The preparation method of the ferric ammonium citrate comprises the following steps: carrying out a first reaction on an iron compound and first ammonia water, introducing air in the process of the first reaction, and preparing a first slurry, and carrying out solid-liquid separation on the first slurry, taking a solid, carrying out second reaction on the solid, second ammonia water and citric acid in a solvent, and concentrating to prepare the ferric ammonium citrate. According to the preparation process of the ferric ammonium citrate, the generation of hydrogen and the use of a strong oxidant in the traditional process are avoided, the safety of the production process is improved, the ferric ammonium citrate with few impurities and high purity is obtained, qualified diammonium hydrogen phosphate is co-produced, and the preparation process has a great application prospect.

Described herein are liquid fire retardant concentrate compositions comprising mixtures of ammonium phosphate fire retardants. Specifically, liquid fire retardant concentrate compositions comprising one or more of monoammonium phosphate (MAP), diammonium phosphate (DAP), and ammonium polyphosphate (APP) are described herein. The ammonium phosphate fire retardant(s) is typically suspended and / or dissolved in a liquid, typically with the fire retardant(s) incorporated into the composition in powder, or granular form. In certain aspects of the present invention, the compositions provided may exhibit one or more advantages as compared to current liquid concentrate fire retardants, including enhanced strength (i.e., a higher proportion of fire retardant component per unit volume), reduced toxicity, and / or reduced corrosion.

The application discloses a long-acting compound fertilizer and a preparation method thereof, and belongs to the technical field of fertilizers. The long-acting compound fertilizer is prepared from the following raw materials in parts by weight: urea 40-60 parts, diammonium phosphate 20-30 parts, potassium chloride 30-40 parts, solid slow-release material 80-100 parts, humic acid 15-25 parts, carboxymethyl cellulose 6-10 parts and water 300-400 parts; the solid slow-release material is composed of modified sepiolite powder and modified nanocellulose at a mass ratio of 2:1. The chemical adsorption of the modified nanocellulose and the physical adsorption of the modified sepiolite powder in the slow-release material jointly form a more stable slow-release system, significantly prolong the release period of the fertilizer, improve the slow-release effect, and further improve the soil environment, improve the water-retaining capacity and fertility of the soil and promote the growth of crops.

The application discloses a preparation method of organic fertilizer produced by using livestock and poultry manure in the field of fertilizer production, and comprises the following steps: S1, adding gamma-polyglutamic acid to livestock and poultry manure matrix, inoculating compound probiotics to carry out fermentation, filtering, and obtaining livestock and poultry manure matrix fermentation liquor; S2, mixing the livestock and poultry manure matrix fermentation liquor, microbial capsules, modified humic acid, activated biochar, urea, diammonium phosphate and trace elements, carrying out compost fermentation, obtaining mixed fermentation material, and carrying out granulation and steam curing to obtain livestock and poultry manure organic fertilizer. Through the mode of adding microbial capsules, modified humic acid and activated biochar, the technical effect of shortening the fermentation time is realized, the stability of the organic fertilizer is improved through the synergistic effect among the components, and the active components of the organic fertilizer are slowly released, so that the technical effects of slow release and long-acting fertilizer preservation are achieved.

The utility model discloses an anti-blocking agent adding device. The anti-blocking agent adding device comprises a base, a rotary assembly, a driving mechanism and an anti-blocking agent atomizing assembly, the rotary assembly is rotationally installed on the base along the axis in the horizontal direction, the rotary assembly is provided with a rotary part rotating in the axis direction of the rotary assembly, and the rotary part is used for containing materials; the driving mechanism is connected with the rotary assembly, and the driving mechanism is used for driving the rotary assembly to rotate so that the rotary part can incline downwards in the material flowing direction during discharging; the anti-blocking agent atomization assembly is arranged on the base, and part of the anti-blocking agent atomization assembly extends into the rotating part and is used for spraying an anti-blocking agent into the rotating part. The diammonium phosphate particles can be rapidly discharged, and the production efficiency is improved.

The invention discloses a preparation method of a magnetic hydroxyapatite material and application of the magnetic hydroxyapatite material in the technical field of environmental governance materials, and the preparation method comprises the following steps: dissolving calcium nitrate tetrahydrate in deionized water as a calcium source at normal temperature by using a hydrothermal method which is simple to operate; the preparation method comprises the following steps: dissolving diammonium hydrogen phosphate in water to serve as a phosphorus source, mixing and stirring the two solutions, adding ferroferric oxide nanoparticles, adjusting the pH value with ammonia water, stirring and reacting, heating in a drying oven for a period of time, cooling to room temperature, and washing and freeze-drying the precipitate to obtain the magnetic hydroxyapatite material. The magnetic hydroxyapatite can be used for adsorbing micro-plastics in a water body. The material has the advantages of high adsorption capacity, high removal efficiency and easiness in recovery.

The invention discloses a preparation method of a caprolactam ammoniation catalyst, the caprolactam ammoniation catalyst and application, and belongs to the field of catalysis. Comprising the following steps: S1, mixing a carrier with an alkali solution, treating I, drying I and roasting to obtain a treated carrier; s2, mixing an active component precursor solution with the treated carrier, dipping, and drying II to obtain a catalyst precursor; and S3, treating the catalyst precursor II in a water vapor atmosphere to prepare the caprolactam ammoniation catalyst, the active component precursor is selected from at least one of phosphoric acid, metaphosphoric acid, ammonium dihydrogen phosphate, diammonium hydrogen phosphate, polyphosphoric acid, phosphomolybdic acid and phosphotungstic acid. The prepared catalyst is applied to a reaction for preparing 6-aminocapronitrile through caprolactam ammonification, has high conversion rate and selectivity, also has high stability, and can stably operate for a long period.

The utility model relates to diammonium hydrogen phosphate production technical field discloses tail gas pickling device for diammonium hydrogen phosphate, including support, pickling tower, pickling tower fixedly connected in the middle part of support, mounting block and demisting board, mounting block fixedly connected in the upper portion of pickling tower, demisting board installs in the inside of mounting block, link pipe and processing box, link pipe fixedly connected in the bottom of pickling tower, processing box fixedly connected in the bottom of link pipe, coarse filter board and fine filter board, coarse filter board is inserted in the inside left side of processing box, fine filter board is inserted in the inside right side of processing box, circulating pipe and liquid storage bucket, circulating pipe fixedly connected in the bottom right side of processing box. In the utility model, it realizes the filtration to the liquid after the spray neutralization, and then is transported to the inside of liquid storage bucket, avoids the blockage of spray head, thereby improves the work efficiency of equipment.

The invention belongs to the technical field of fire extinguishing materials. The invention provides a fire extinguishing material additive, an inorganic powder fire extinguishing material and a preparation method thereof, the fire extinguishing material additive comprises a first composition and a second composition, the first composition comprises polyoxyethylene, cellulose ether, diammonium hydrogen phosphate, urea, pentaerythritol, a leveling agent, a defoaming agent, silicone amide, potassium iodide and deionized water, the second composition includes hydrogen peroxide. According to the fire extinguishing material additive, inorganic powder is rapidly foamed at a high rate to form powder foam with the volume rate of 30-60 times to form foam solids, the foam bodies have relatively high stability, and the inorganic powder fire extinguishing material has the effects of suffocation, isolation, wrapping and the like, can rapidly extinguish solid, liquid, gas, charged and cooking material fire extinguishing materials, and can be used as a fire extinguishing material for fire extinguishing. The fire behavior can be rapidly and effectively controlled, a fire source can be rapidly blocked, secondary pollution is avoided, and reburning is not prone to occurring.

This invention relates to the field of hydroxyapatite technology and discloses aluminum phosphate-modified hydroxyapatite material and its preparation method, comprising the following materials: 1.32g diammonium hydrogen phosphate, 1.33g aluminum chloride, simulated weathering sample, and 200ml deionized water. The modified hydroxyapatite prepared by this invention, by adding an aluminum source during the original protection process, effectively improves the porosity, ultrasonic velocity, and strength of the weathered sample while ensuring aesthetic compatibility. Furthermore, its acid resistance is also improved, effectively enhancing the acid rain resistance of outdoor carbonate rock artifacts.