194 results about "Ammonium hydrogen phosphate" patented technology

The invention relates to a method for synthesizing iron phosphate with doped metallic elements. The method comprises the following steps of: (1) using sulfate, chloride or nitrate of iron as an iron source, mixing any one of substances containing other metal cation elements with the iron source, accurately weighting each material in a mol ratio, and adding distilled water into the materials to prepare a mixed solution, wherein the total mol concentration of the mixed solution is 0.1 to 5 mol/L; (2) using one or a mixture of more than one of ammonium dihydrogen phosphate, ammonium phosphate, ammonium hydrogen phosphate and trisodium phosphate as a phosphorus source, and preparing phosphorus solution of which the mol concentration is 1 to 5 mol/L; (3) using ammonia water as a complexing agent and a neutralizing agent; (4) controlling the reaction temperature to between 20 and 98 DEG C, pumping the mixed solution doped with the doped metallic elements and the phosphorus solution into a reactor respectively, controlling the pH value by the ammonia water, and stirring the mixture to ensure that the mixture is continuously co-precipitated in the reactor to generate the iron phosphate with spherical doped metallic elements; and (5) aging, spin-drying, washing and drying the reaction solution to obtain the iron phosphate with the doped metallic elements. The method has the advantages of simple operation, stable performance, low manufacturing cost, sterility and no pollution.

The present invention discloses a method for preparing hydroxyapatite hollow microsphere. Said method includes the following steps: using tetrahydrate calcium nitrate and ammonium hydrogen phosphate as raw material, adopting chemical precipitation method to prepare hydroxyapatite slurry, then diluting said hydroxyapatite slurry by using distilled water, adding ammonium hydrogen carbonate as additive, uniformly stirring them, spray drying, making following heat treatment so as to obtain the hydroxyapatite hollow microsphere formed from nano grains.

The invention discloses an organic/inorganic slow-release fertilizer for flowers and a preparation method of the slow-release fertilizer. The organic/inorganic slow-release fertilizer is prepared from the following raw materials in parts by weight: 45 to 55 parts of horse manure, 20 to 30 parts of wheat bran, 15 to 25 parts of brewer's grains, 12 to 18 parts of flour beetle frass sand, 10 to 15 parts of residual tea, 5 to 10 parts of edible fungi waste, 18 to 26 parts of sorgo straw, 10 to 15 parts of mung bean shells, 5 to 10 parts of sugar beet meal, 1 to 3 parts of spawn powder, 16 to 22 parts of yellow phosphorus furnace slag, 20 to 30 parts of obsidian, 17 to 24 parts of hectorite, 10 to 15 of parts zeolite 4A, 32 to 44 parts of ammonium nitrate, 22 to 28 parts of ammonium hydrogen phosphate ammonium dihydrogen phosphate, 8 to 14 parts of potassium carbonate, 2 to 3 parts of diaminoferric xanthohumate, 3 to 6 parts of sugar calcium, 4 to 8 parts of sodium metasilicate, 15 to 20 parts of polyvinyl alcohol, 5 to 10 parts of carboxymethyl cellulose, 9 to 16 parts of hydroxypropyl xanthan gum, 2 to 4 parts of algal polysaccharides, and 3 to 5 parts of polyglutamic acid. The fertilizer provided by the invention is high in nutrient amount and high and long in fertilizer efficiency, can improve soil, enables soil to form granular structures, and harmonizes water and gas in soil to enable flowers to grow up well and quickly, thereby improving the quality and the yield of flowers and lowering the fertilization cost; important economic benefits are brought.

The invention discloses a flame-retardant wood-plastic composite material. The flame-retardant wood-plastic composite material consists of the following components in part by weight: 35 to 60 parts of plant fiber, 10 to 35 parts of ammonium phosphate flame retardant, 20 to 28 parts of plastic and 2 to 10 parts of compatilizer, wherein the total parts of the plant fiber, the ammonium phosphate flame retardant, the plastic and the compatilizer are 100; the plant fiber is powder of 30 to 100 meshes of plant fiber; the ammonium phosphate flame retardant is one or a mixture of ammonium hydrogen phosphate and ammonium dihydrogen phosphate; the plastic is one or a mixture of more than two of the following components: polyethylene, polypropylene, acrylenitrile-butadiene-styrene (ABS) plastic and polystyrene; and the compatilizer is one or a mixture of maleic anhydride grafted polyethylene and maleic anhydride grafted polypropylene. The flame-retardant wood-plastic composite material has the advantages of low flame retardant cost, good flame retardant effect and no harm and toxicity.

The invention provides a catalyst special for O-alkylation production of aromatic ether and a method for producing aromatic ether. The catalyst is a supported catalyst, wherein transition metal or precious metal serves as an active component, a mixture of any one of ammonium hydrogen phosphate, ammonium dihydrogen phosphate, ammonium phosphate and phosphoric acid and any one of potassium hydroxide, potassium carbonate, sodium hydroxide and sodium carbonate serves as an auxiliary, one or a mixture of an oxide carrier, clay and a molecular sieve serves as a carrier, the weight carrying amount of the active component is 0.1-5%, and the weight carrying amount of the auxiliary is 0.1-1%. The method comprises the steps that phenol and alkyl alcohol are catalyzed to react through the catalyst, wherein the mole ratio of phenol to alkyl alcohol in the raw materials is 1:(3-10), the catalyzing reaction is carried out in a gas-solid phase continuous flowing reaction device, and the catalyzing reaction temperature is 230-300 DEG C. The one-way service life of the catalyst reaches 3000 h or longer, and the problems that a catalyst used in the existing aromatic ether production process is short in service life, and consequently continuous industrial production of aromatic ether cannot be achieved are solved.

The invention relates to a denitrification catalyst regeneration method. The denitrification catalyst regeneration method comprises the following steps of: cleaning solution soaking, deionized water soaking, active steeping liquor soaking, and drying to obtain a regenerated catalyst. The technological process of the denitrification catalyst regeneration method is technically characterized by comprising the following steps: (1) preparing a cleaning solution of certain concentration; (2) still steeping the catalyst in a washing pool for 30 to 60 minutes, and transferring the catalyst into a rinsing pool; (3) washing the catalyst with deionized water or a sulfuric acid solution (lower than 1%), and steeping for 30 to 60 minutes; (4) preparing an active steeping liquor of certain concentration, transferring the catalyst into an active steeping pool and steeping for 30 to 60 minutes; (5) and transferring the catalyst into an oven, drying for 1-3 hours at the temperature of 240-320 DEGC, and cooling the catalyst to obtain a regenerated catalyst, wherein the cleaning solution contains one or more of ammonium carbonate, ammonium bicarbonate, ammonium phosphate or ammonium hydrogen phosphate of certain concentration, and the active steeping liquor comprises the following main components: ammonium metavanadate, ammonium paratungstate and oxalate. The denitrification catalyst regeneration method has the characteristics that the washing process adopts chemical process standing operation, so that the loss of effective components in the catalyst can not be caused, and the hardness of the catalyst and the service life of the catalyst can be ensured to the maximum extent.

The invention discloses a special high-performance compound fertilizer for woody flowers and plants. The high-performance compound fertilizer is prepared from the following raw materials: poultry manure, roots and stems of leguminous plants, bentonite, steel slag, coal ash, ammonium polyphosphate, ammonium hydrogen phosphate, urea, potassium chloride, calcium nitrate, rare earth salts, zinc sulfate, ferrous sulfate, borax, humic acid, lignin, sodium potassium tartrate, amino acid, sucrose, glucose, ethylene diamine tetra-acetic acid, acrylic resin and a microbial agent. The special high-performance compound fertilizer for woody flowers and plants disclosed by the invention has the advantages of high utilization rate, small amount and balanced nutrients; after the compound fertilizer is applied to the woody flowers and plants, the flowers and plants are healthy and strong and has green leaves, bright-colored flowers and long flowering period and the properties of soil can be improved so that the soil has healthy development.

The invention discloses strontium magnesium-doped nano-hydroxyapatite and a preparation method thereof. The method comprises the following steps of: simultaneously and slowly adding a strontium nitrate liquor, a magnesium nitrate liquor and an ammonium hydrogen phosphate liquor by a predetermined molar ratio to a nitric acid liquor at 80-90 DEG C; adjusting pH value to 7-8 by ammonia water under continuous stirring; reacting for 2-3 hours, and standing for 24-48 hours; filtering and washing the precipitate; placing the precipitate in a reaction kettle for reaction for 4-6 hours at 80-90 DEG C; and cleaning and drying the slurry obtained to obtain the rod-like strontium magnesium-doped nano-hydroxyapatite free from solvent residue with small particle diameter. The strontium magnesium-doped nano-hydroxyapatite can be used as a novel biological material for repairing hard tissues, better simulates natural bone, and has the capacity of shortening the bone repairing period.

The invention relates to a water planting nutrient solution for edible amaranth, which consists of macroelements, microelements and water. Every 1000ml of the nutrient solution comprises 800.00-809.73mg of calcium nitrate terahydrate, 152.00-158.04mg of ammonium hydrogen phosphate, 53.00-57.60mg of ammonium nitrate, 20.00-22.20mg of sodium ferric ethylene diamine tetraacetic acid, 2.86-3.15mg of boric acid, 0.08-0.10mg of copper sulfate pentahydrate, 810.00-819.90mg of potassium nitrate, 400-500mg of magnesium sulfate, 100-170mg of potassium sulphate, 150-175mg of potassium dihydrogen phosphate, 28-33mg of calcium ammonium nitrate, 3-5mg of manganese sulfate, 0.45-0.52mg of zinc sulphate monohydrate, 0.01-0.015mg of sodium molybdate, 0.02-0.04mg of ammonium molybdate, 0.3-0.5mg of nickel chloride, 7.4-8.2mg of potassium iodide, 12-15mg of citric acid, 16-19mg of sodium silicate and 0.04-0.05mg of lead acetate. The water planting nutrient solution for edible amaranth is complete in nutritional ingredient, simple to prepare and high in practicality, and has a certain popularizing and practical value.

The invention discloses a health high-nutrient goose fodder which comprises the following raw materials by weight: 80 to 120 parts of cassava, 30 to 60 parts of unhusked rice, 20 to 40 parts of maize, 5 to 15 parts of wheat, 2 to 8 parts of peanut meal, 3 to 9 parts of bean cake, 2 to 6 parts of wheat bran, 1 to 5 parts of pumpkin, 4 to 8 parts of fish meal, 1 to 3 parts of edible salt, 2 to 5 parts of lysine, 3 to 5 parts of methionine, 2 to 4 parts of ammonium hydrogen phosphate, 3 to 7 parts of an additive, and 2 to 8 parts of a Chinese traditional medicine conditioner. The health high-nutrient goose fodder can provide rich starch, protein, fat and trace element for growth of gooses, so as to improve the growing efficiency and quality.

The invention relates to a method for preparing dinitrile from dihydric alcohol by virtue of ammoxidation. The method comprises the steps of carrying out ammoxidation on dihydric alcohol by taking one or two of air or oxygen as an oxygen source and one or two of ammonia gas, ammonia water, urea, ammonium chloride, ammonium carbonate, ammonium sulfate, ammonium phosphate, ammonium hydrogen phosphate and ammonium formate as a nitrogen source under the catalytic action. According to the invention, the ammoxidation efficiency is high, and the product yield is high; by taking air or oxygen as the oxygen source, the method is economic and environmentally friendly; as products and a catalyst are separated, the aftertreatment is simple; the catalyst is easily repeatedly used, so that the method has a good application prospect.

The invention relates to the technical field of industrial wastewater treatment, and provides an iron phosphate wastewater treatment method and system. The iron phosphate wastewater treatment method comprises the following steps: S1, pretreating iron phosphate mother liquor to obtain mother liquor clarified filtrate, and pretreating iron phosphate washing water to obtain concentrated water A; s2, mixing the mother liquor clarified filtrate and the concentrated water A, evaporating and concentrating to obtain concentrated water B; s3, the concentrated water B is centrifuged for cooling crystallization, and a solid product is obtained and dried. According to the iron phosphate wastewater treatment method and system provided by the invention, respective treatment is carried out according to the characteristics of iron phosphate production wastewater, and the concentrated water after evaporation and concentration is subjected to operations such as centrifugation, cooling crystallization and drying, so that ammonium sulfate, ammonium hydrogen phosphate, magnesium sulfate and pure water in the wastewater are recycled, and the purposes of resource recovery and zero emission are achieved.

The invention provides a freshness retaining nutrient solution for arranged flowers and a preparation method, and belongs to the field of plant nutrient solutions. The freshness retaining nutrient solution comprises the following materials: cane sugar, salt, betaine, potassium sulfate, ammonium hydrogen phosphate, acetylsalicylic acid, naphthylacetic acid and water. The freshness retaining nutrient solution can promote growth of the arranged flowers, guarantee the vitality of the arranged flowers, prolong the service life of the arranged flowers, kill bacteria and limit microbial proliferation, so that the economic benefit of the arranged flowers is further increased.

A preparation method for rare earth phosphate comprises stirring raw materials at a ammonium hydrogen phosphate/rare earth ion ratio of 1.0-4.0, adding rare earth inorganic solution (containing rare earth oxide 5 g/L-300 g/L) and 0.1 mol/L-2 mol/L phospahte into 0.01 mol/L-2 mol/L phosphoric acid respectively and controlling the concentration of phosphoric acid to obtain rare earth phosphate with uniform particle size which would increase with increasing of phosphoric acid concentration, aging, filtering the obtained rare earth phosphate, washing and drying, and torrefying at 200-1300DEG C for 1-15 h. This invention can prepare rare earth phosphate with good dispersity and no need for pulverization, and can accurately control the granularity of products in a certain range.

The invention discloses a catalyst for selectively synthesizing 4-methyl-2,6-di-tert-butylphenol and application of the catalyst. The catalyst is prepared from a molecular sieve as a carrier modifiedby any one of ammonium phosphate, ammonium hydrogen phosphate and ammonium dihydrogen phosphate, and an active component A and an active component B carried by the carrier, wherein the molecular sieveis an Hbeta molecular sieve, H-mordenite, an HY molecular sieve, an USY (Ultra-Stable Y Zeolit) molecular sieve, an REY molecular sieve or a SAPO-5 (Silicoaluminophosphate) molecular sieve; the active component A is Co, Cu, Ni or Fe; the active component B is at least one of phosphotungstic acid, silicotungstic acid, phosphomolybdic acid, silicomolybdic acid and sodium tungstate; by the carrier,the carrying amount of the active component A is 2-5%, and the carrying amount of the active component B is 2-10%. The catalyst disclosed by the invention is applied to p-methylphenol and isobutene ortertiary butanol to produce 4-methyl-2,6-ditertiary butyl phenol, and has the advantages of low catalyst cost, high raw material conversion rate, good product selectivity, long catalyst service life,simple use process and the like.

The invention relates to an aloe water culture nutrient solution. The aloe water culture nutrient solution comprises major elements, trace elements and water, and the aloe water culture nutrient solution is divided into a solution A, a solution B and a solution C, wherein the solution A comprises the following main components: calcium nitrate tetrahydrate, potassium nitrate, ammonium hydrogen phosphate, magnesium sulfate, potassium dihydrogen phosphate, zinc sulfate heptahydrate, copper sulfate pentahydrate and calcium carbonate; the solution B comprises the following main components: ferrous sulfate heptahydrate, magnesium sulfate heptahydrate, potassium chloride, potassium iodide, copper sulfate, lead acetate and sodium citrate; and the solution C comprises the following main components: boric acid, copper sulfate pentahydrate, sodium molybdate, sodium silicate, calcium chloride, cobalt chloride and ammonium molybdate. The aloe water culture nutrient solution has a high absorption utilization rate and can accelerate the growth of aloe. The aloe water culture nutrient solution fundamentally avoids the waste caused by excessive or insufficient nutrition because the aloe water culture nutrient solution is non-targeted for a long time.

The invention discloses an automotive oil seal ring, comprising, by weight, 100 to 125 parts of silicone rubber, 100 to 120 parts of butadiene rubber, 80 to 100 parts of nitrile-butadiene rubber, 80 to 100 parts of styrene butadiene rubber, 60 to 80 parts of butyl rubber, 60 to 80 parts of isoprene rubber, 5 to 8 parts of petroleum ether, 8 to 10 parts of diethylene glycol monobutyl ether, 5 to 8 parts of cyclopentadiene, 8 to 10 parts of dioctyl phthalate, 3 to 5 parts of coconut oil, 3 to 5 parts of rapeseed oil, 5 to 8 parts of realgar, 6 to 10 parts of ammonium hydrogen phosphate, 8 to 10 parts of basic cupric carbonate, 10 to 12 parts of silicon carbide powder, 6 to 8 parts of polyvinyl alcohol, 8 to 10 parts of nano-titanium dioxide, 8 to 10 parts of nano calcium carbonate, 8 to 12 parts of calcite powder, 6 to 8 parts of N-phenyl-alpha-benzenamine anti-aging agent, 8 to 10 parts of polypropylene glycol, 6 to 8 parts of diethylene glycol, and 8 to 10 parts of emulsified silicone oil. The automotive oil seal ring is low in cost, stable in performance, high in strength, low in compressive deformation, resistant to high and low temperatures, excellent in performance, and free of breakage and deformation in long-term operation.

The invention discloses a method for synthesizing hydroxyapatite with chalk (calcium carbonate) as a raw material, which comprises the step of allowing hydrothermal synthesis reaction between chalk and ammonium hydrogen phosphate aqueous solution under normal pressure in a 60-95 DEG C water bath for 24-96 hours to obtain a hydroxyapatite product. The inventive method has the advantages of normal pressure reaction, rapid reaction speed, low reaction temperature, high yield, and rich raw material resources. The obtained product retains the microstructure original chalk, can be used as an active bioceramic layer, a metal-based or glass-based biomaterial layer, or a matrix or an enhancement body of biological composite materials, can absorb toxic positive ions in wastewater, and can be used as a catalyst carrier or a drug sustained-release carrier.

The invention relates to an agricultural fertilizer, and particularly relates to a soil water-retaining agent and a preparation method thereof. The soil water-retaining agent of the invention comprises the following components by mass: 5 g-10 g of ammonium hydrogen phosphate; 1 g-3 g of magnesium sulfate; 5 g-10 g of diatomite; 5 g-10 g of vulcanic ash; 1 g-2 g of sodium polyacrylate; 10 g-15 g of urea; 0.5 g-1 g of auxin; 30 g-50 g of straw slag; and 5 g-10 g of zeolite. The soil water-retaining agent of the invention has excellent water-storing and water-retaining performance, can effectively improve the water utilization rate of soil, is added with auxin for assistant promotion of plant growth, and effectively solves the problems of soil water depletion and water shortage in drought areas.

A polishing composition contains silicon dioxide, an alkaline compound, and water. Silicon dioxide is, for example, colloidal silica, fumed silica, or precipitated silica. The alkaline compound is, for example, ammonium carbonate, potassium carbonate, sodium carbonate, ammonium hydrogen carbonate, potassium hydrogen carbonate, sodium hydrogen carbonate, ammonium phosphate, potassium phosphate, sodium phosphate, ammonium hydrogen phosphate, potassium hydrogen phosphate, or sodium hydrogen phosphate. The polishing composition can be suitably used in applications for polishing a glass substrate.

The invention discloses a lodging-resistant organic slow-release fertilizer used for late rice planting. The fertilizer comprises the following raw materials: cassava dregs, bean pulp, cottonseed meal, peanut bran, radix sophorae flavescentis powder, coptidis rhizome powder, alga residues, humic acid, distillers' grains, plant ash, borax, calamine powder, ochre powder, coal ash, cobalt chloride, potassium chloride, ammonium chloride, ammonium hydrogen phosphate, ammonium nitrate, potassium sulfate, monopotassium phosphate, sodium silicate, a silicon-calcium fertilizer, calcium nitrate, calcium chloride, copper sulfate, ferrous sulfate, magnesium ammonium phosphate, ammonium phosphate, naphthylacetic acid, uniconazole, paclobutrazol, yeast powder, a straw fermentation inoculant, a rooting agent and a modified slow-release agent. The invention further provides a preparation method of the lodging-resistant organic slow-release fertilizer used for late rice planting. The prepared organic slow-release fertilizer used for late rice has excellent lodging resistance, and sufficient nutrition can be provided for all growing stages of the late rice.Therefore, the yield and the quality of the late rice can be improved.

The invention discloses a preparation method of a fertilizer used for camellia japonica. The method includes the following steps that fermented soybean residue, thoroughly decomposed chicken manure, soybean meal, soybean lecithin powder, straw powder, sepiolite powder and vermiculite powder are mixed evenly, water is added in the mixture for mixing, EM bacterium strain stoste is then added in the mixture for full mixing, sealing fermentation is conducted at the room temperature, the temperature is increased, turning is conducted once, and fermentation continues to obtain a first prefabricated material; fulvate, zinc sulfate and Chinese medicine residues are added into the first prefabricated material, uniform mixing is conducted, the temperature is increased, closed fermentation is conducted, drying and crushing are conducted, ammonium nitrate, ammonium hydrogen phosphate, flue ash potash fertilizer, triple superphosphate and calcium chloride are added in the mixture and mixed evenly, silica fume, montmorillonite and composite gelatin added in the mixture and mixed evenly, granulation and drying are conducted, and the fertilizer used for camellia japonica is obtained. The fertilizer used for camellia japonica is directly mixed with soil before camellia japonica is cultivated, the number of times of after-manuring in the late stage can be reduced, toxic and harmful substances in the soil can be effectively adsorbed, a soil hardening phenomenon is relieved, and the pests and bacteria, affecting the growth of camellia japonica, in the soil is effectively inhibited.