546 results about "Potassium phosphate" patented technology

A liquid fertilizer containing wood vinegar liquid or oxalic vinegar liquid and its production are disclosed. The liquid fertilizer consists of urea 1í½20.0%, potassium phosphate 1í½20.0%, potassium nitrate 1í½20.0%, lime nitrate 0.1í½10.0%, magnesium sulfate 0.1í½5.0%, ferrous sulfate 0.1í½5.0%, manganous sulfate 0.1í½5.0%, zinc sulfate 0.1í½5.0%, cupric sulfate 0.1í½5.0%, boron sand or boric acid 0.1í½2.0%, sodium molybdate or ammonium molybdate 0.1í½1.0%, plant hormone or plant regulator, rare earth element or humus acid or pesticide auxiliaries etc. The process is carried out by proportioning and mixing. It can improve bacterium inhibiting and plant growth regulating functions.

The invention discloses an organic selenium biologics and its preparation method, and method for producing selenium-rich vegetable using the same, wherein the preparation is prepared from water and the following components (by weight percentage) through mixing and fermentation, selenium dioxide : sodium hydrogen carbonate : methionine : brown sugar : carbamide : monobasic potassium phosphate : magnesium sulfate : manganese sulfate : calcium chloride = 35-45 : 35-45 : 10-20 : 45-55 : 1-10 : 1-10 : 1-4 : 1-4 : 1-10, the method of application comprises, diluting the organic selenium biologics to 50-200 times by charging water, spraying diluted organic selenium biologics liquid onto the vegetable leaves, stems or roots. The vegetable exerted by the organic selenium biologics contains rich selenium.

The invention relates to a method for controlling the setting time and early hydration speed of magnesium potassium phosphate cement, and belongs to an early strength quick hardening cement cementing material. A composite retarder can effectively adjust the setting time of magnesium potassium phosphate cement slurry, and the setting time of the magnesium potassium phosphate cement slurry can be effectively controlled in the range of 10 minutes to 6 hours by adjusting the content of chloride and disodium hydrogen phosphate dodecahydrate in the composite retarder, so that the problems of a limited retarding effect, low operability and the like are solved; the composite retarder can change the hydration heat release characteristic of the magnesium potassium phosphate cement, the magnesium potassium phosphate cement slurry doped with the conventional retarder borax has a hydration heat release peak at the initial reaction stage and has a high heat release speed and large heat release amount, and the magnesium potassium phosphate cement doped with the composite retarder has two hydration heat release peaks and has small hydration heat release amount at the initial hydration stage; and the doped composite retarder improves the microstructure and later strength of a hardened magnesium potassium phosphate cement body, so that enough construction operable time can be ensured while the magnesium potassium phosphate cement slurry has early strength and is quickly hardened.

The invention discloses a baicalin metal complex of which the molecular formula is (C21H17O11) xM (H2O) y, wherein M in the formula is Cu (II), x is 1 and y is 2; or M is Fe (III), x is 2 and y is 0; or M is La (III) or Y (III), x is 3 and y is 0. The preparation method comprises the following steps: adding aqueous alkali into baicalin until the baicalin and alkali (sodium bicarbonate, potassium bicarbonate, sodium formate, potassium formate, sodium acetate, potassium acetate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, sodium phosphate or potassium phosphate) are just completely reacted, then adding metal salt (copper salt, ferric salt, lanthanum salt or yttrium salt) for reaction to obtain the baicalin metal complex. The baicalin metal complex has obviously stronger antibacterial and antitumor activities than the baicalin, can be used for preparing antibacterial drugs and antitumor drugs, and has good development and application prospects. In the preparation method, an organic solvent is not used, a strong basic condition is not adopted, and the method is simple and feasible, is green and environment-friendly and has the advantages of low cost, high product purity and high yield.

The invention relates to a novel civil oiling agent composition for a FDY polyester filament yarn and a preparation method for the novel civil oiling agent composition for the FDY polyester filament yarn. The novel civil oiling agent composition is prepared from the following components in percentage by weight: 2-15% of an antistatic agent composition, 2-15% of a tow collecting agent, 30-80% of a lubricating agent, 15-30% of an emulsifier and 1-5% of a regulating stabilizer, wherein the antistatic agent composition consists of a component A and a component B, the component A is fatty acid monoisopropanolamine polyoxyethylene polyoxypropylene ether potassium phosphate which accounts for 3-7% (in percentage by weight) of the oiling agent composition, and the component B is an anionic surfactant or an ampholytic surfactant. The novel civil oiling agent composition disclosed by the invention is good in antistatic performance in a spinning process, uniform in oiling, excellent in spinning property, good in heat resistance, low in tarring degree, less in residues on a stick, and low in oiling rate; moreover, the performances of the spinning tows are good.

The invention discloses a nylon oiling agent, which is composed of mineral oil, hexadecyl potassium phosphate, dodecyl phosphate diethanol ammonium salt, castor oil polyoxyethylene (40) ester and sorbitan stearate. The nylon oiling agent has the advantages of reasonable formula, good use effect and low production cost.

The invention discloses an ammonium potassium phosphate composite water-soluble fertilizer which is prepared from the following components in parts by weight: 5-30 parts of nitrogen source, 10-20 parts of phosphorus source, 10-50 parts of potassium source and 4-20 parts of microelement mixture. The microelement mixture comprises nutrients of a sulfur source, a boron source, a zinc source and an iron source. The prepared fertilizer has the advantages of favorable solubility, high solution rate and no impurity, and is suitable for various trickle irrigation plants. According to the invention, the fertilizer can be properly and directly applied to the root system centralized layer in proper time, and is applied slightly and frequently, so that the fertilizer application is regular and positioned; and thus, the fertilizer can be conveniently absorbed by crops, thereby reducing the crop loss, fully displaying the fertilizer efficiency, improving the soil and obviously increasing the yield.

The invention relates to an oil agent for chopped polyester fiber. The oil agent is prepared by mixing the following components in percentage by weight: 25-35% of isooctyl stearate, 5-15% of sodium diethyl ethanol sulfonate succinate, 3-5% of sorbitan oleate, 15-25% of dodecyl polyoxyethylene ether (5), 8-12% of dodecyl polyoxyethylene ether (10), 8-12% of potassium POE (polyoxyethylene) alkyl phosphate, 3-5% of softener A, 3-5% of fatty alcohol ethylene oxide and 1-8% of regulator. The oil agent provided by the invention has the advantages of excellent emulsion stability, antistatic property and smoothness as well as high oil film strength, and is suitable for production of chopped polyester fiber or chopped cotton polyester fiber which has high total tow denier number and can be spun at high speed. In addition, because the oil agent has low production cost and very large use amount, the economic benefit is obvious.

The invention relates to a method for breeding cold resistant draping thread cedar, which can meet demand of sight plant in cold area of minus 18 Deg. C, comprising following steps: immersing seed which stored at temperature under 0 Deg. C for at least 10 months, then sowing, covering with film, spraying mono-basic potassium phosphate mixture when autumn tip is over 10 cm after seedling growing out to promote branch mature, then cutting, treating seed bed firstly, cutting draping thread cedar branch secondly, immersing in mixture of root-growth and sterilizing, furrow cutting or ridge cutting, covering with film and shading to maintain proper soil humidity and air humidity until seedling grows out, then replanting for growth. The invention is characterized by simple method, good breeding effect and high breeding rate, which solves problem of asexual propagation for draping thread cedar and develops a bright future for sight-seeing plant application.

The invention discloses cesium-rubidium-potassium monolithic flameproof glass and a preparation method. The preparation method comprises a process of carrying out chemical strengthening on glass, wherein chemical strengthening is carried out by placing the glass in molten salts and carrying out ion exchange by a two-step method; in the first step, the molten salt is a mixture of potassium nitrate, rubidium nitrate, potassium fluoride and potassium hydroxide, the exchange temperature is 320-360 DEG C and the heat-insulation time is 2 hours; and in the second step, the molten salt is a mixture of potassium nitrate, cesium nitrate, aluminum oxide, boron fluoride, potassium carbonate and potassium phosphate, the exchange temperature is 500 DEG C and the heat-insulation time is 3 hours. The monolithic flameproof glass product prepared by the method is stable in quality and excellent in fire resistance; in the fire resistance test, the invalidation of the monolithic flameproof glass is caused by final softening and collapsing instead of heat bursting destruction; and the fire resistance time is 120 minutes.

The invention discloses a cigarette paper additive, a preparation method and application thereof. The cigarette paper additive of the invention comprises the following ingredients in mass percent: 40 to 50 percent of potassium phosphate, 20 to 30 percent of potassium citrate, 20 percent of apple potassium, 10 percent of glucose and citric acid solution, wherein the citric acid solution is used for regulating the pH value of the accessory agent solution to the required range. The invention belongs to the improvement of the existing cigarette paper. When the cigarette paper adopting the cigarette paper additive of the invention is made into cigarette finished products, the pH value of the mainstream smoke can be regulated to a certain degree, the smoking quality of the cigarette can be effectively improved, and at the same time, the contents of the tar and the carbon monoxide in the mainstream smoke can be effectively reduced.

The utility model relates to a high-efficiency iron rust conversion agent, and belongs to the field of an antirust paint. The iron rust conversion agent comprises the following raw materials by weight: 0.1-10% of zinc oxide, 20-40% of phosphoric acid, 0.5-15% of dichromate, 0.5-10% of phosphate, 0.1-10% of corrosion inhibitor, and 50-70% of solvent, wherein the dichromate is potassium dichromate or sodium dichromate; the phosphate is sodium phosphate or potassium phosphate; the corrosion inhibitor is urotropine or urea; and the solvent is water or ethanol. The preparation method comprises the steps as follows: sequentially adding the solvent, the phosphoric acid, the dichromate, the phosphate, the corrosion inhibitor and the zinc oxide to a glass cup under persistently stirring according to the mass ratio, and dissolving for 10-20 min. The production method bases on the dissolving of the solid reactants in the phosphoric acid solution. The phosphorized film formed by iron rust conversion has the effects of preventing rust and fixing remnant rust, and the formed phosphorized layer protective film is long-acting, and stable in atmospheric environment, lubricating oil and organic solvent, has high adhesion, can be used as a primer, has dielectric properties, and can prevent electro-chemical corrosion on the metal surface.

The invention discloses a soil-improving continuous-cropping-resistant compound fertilizer for vegetables. Raw materials of the compound fertilizer comprise, by weight, 10-15 parts of urea, 10-12 parts of ammonium nitrate, 15-20 parts of potassium phosphate, 10-15 parts of calcium magnesium phosphate fertilizer, 3-5 parts of potassium sulfate, 1-3 parts of calcium chloride, 2-4 parts of carbonized rice husk, 3-5 parts of peat, 1-3 parts of attapulgite, 5-8 parts of guano, 15-20 parts of Chinese medicine residue, 10-15 parts of soybean meal, 10-20 parts of plant ash, 3-5 parts of EM bacterial powder and 8-10 parts of polyvinyl alcohol. The invention also discloses a preparation method of the above soil-improving continuous-cropping-resistant compound fertilizer for vegetables. The compound fertilizer has rich nutrients. through cooperation of organic fertilizer, carbonized rice husk, peat, attapulgite, EM bacterial powder and polyvinyl alcohol, the product helps improve soil, adjust soil pH and maintain soil fertility from three aspects of water retention, air permeability and fertilizer efficiency maintenance. With the cooperation of the Chinese medicine residue, the product helps inhibit and kill insect disease, promote healthy growth of vegetables and avoid continuous-cropping and insufficient nutrition of vegetables.

The invention discloses an etching solution for high-transmittance anti-dazzle glass, and a preparation method thereof. Raw materials of the etching solution comprise hydrofluoric acid, ammonium fluoride, ammonium bifluoride, magnesium fluoride, aluminum fluoride, calcium fluoride, calcium hydrogen fluoride, potassium hydrogen fluoride, ammonium chloride, zinc chloride, sodium acetate, barium sulfate, sodium fluoroborate, ammonium fluoroborate, sodium phosphate, ammonium biphosphate, potassium phosphate, ethylene diamine tetraacetic acid, nitrilotriacetic acid, a viscosity regulator, a surfactant, a sulfuric acid solution and water. The preparation method of the etching solution for high-transmittance anti-dazzle glass has the advantages of mild process and mild conditions, and the etching solution for high-transmittance anti-dazzle glass, prepared through the method, has the advantages of good stability, high transmittance and atomization rate, and good anti-dazzle effect.

The invention relates to low silicon content coolant liquid applicable to an aluminum radiator of a heavy-duty commercial vehicle engine, and belongs to coolant liquid. The coolant liquid comprises the following raw materials in portion by weight: 36 to 52 portions of terylene grade glycol, 1.0 to 1.5 portions of mannite, 0.3 to 0.7 portion of phenylformic acid, 0.7 to 0.9 portion of adipate, 0.1 to 0.2 portion of methylbenzotriazole, 0.05 to 0.1 portion of p-nitrobenzoic acid, 0.001 to 0.004 portion of polyether, 0.3 to 0.7 portion of potassium phosphate, 0.2 to 0.25 portion of sodium nitrite, 0.25 to 0.3 portion of sodium nitrate, 0.5 to 1.0 portion of borax, 0.007 to 0.02 portion of sodium silicate, 0.45 to 0.68 portion of sodium hydroxide, and distilled water for fixing the volume to 100 portions. The coolant liquid contributes to improvement of heat exchange and cooling performance of a water jacket of the engine, is more adapted to an aluminum water tank radiator, is adapted to sedans and light vehicles, and is more adapted to heavy-duty commercial vehicles.

The invention provides a method for preparing a culture medium of beech mushrooms and needle mushrooms by utilizing a waste material of an agaric culture medium. The method comprises the following steps: (1) collecting and materializing treatment for the waste material of the agaric culture medium: selecting a qualified fungus bag for debagging, crushing under tiny wet state, adding a modifier while crushing to adjust a pH value to be 6.0-7.0, and standing in sunlight for exposing 2-8 days or drying for 6-12 hours at 65-75 DEG C until the water content is 10%-13% for later use, and (2) nutrient balancing preparing for the culture medium: taking 65-75% of processed agaric waste materials, 10-25% of bran or rice bran, 2% of bean flour, 5-10% of corn flour, 0.5% of white sugar, 1-2% of calcium superphosphate or potassium phosphate, 1-2% of gypsum and 0.5-1% of magnesium sulfate, and then adding water until the water content is 55%-65%, and uniformly stirring after an absorbing nutritional solution of 0.3-2.5% nutritional type biopolymer is saturated. According to the method, the cost is low, the yield is high, the waste is efficiently reused and the environmental pollution is reduced.

The invention belongs to the field of polymer nano biological medicinal materials, particularly relates to a preparation method for efficient chain transfer agent trithiocarbonate used for RAFT polymerization. The method is characterized in that the chemical formula of the trithiocarbonate is C17H32O2S3, and comprises the following steps: adding potassium phosphate, a solvent and carbon bisulfide into a round-bottom flask for reaction 1-3 hours; adding do-decyl mercaptans to conduct addition reaction for 1-3 hours; and finally adding 2-bromine isobutyric acid to conduct esterification reaction for 13-24 hours. The brilliant orange trithiocarbonate can be obtained from the reacted solvent subjected to procedures of reduced pressure distillation for removal, dissolution, extraction, and washing, wherein the mass ratio of the potassium phosphate to the carbon bisulfide is 1:(1-3), as well as the mass ratio of the do-decyl mercaptans to the carbon bisulfide, and the mass ratio of the 2-bromine isobutyric acid to the carbon bisulfide are also 1: (1-3). According to the method provided by the invention, the synthesizing is simple, the purification is convenient, and the stability of the product is good. Moreover, the RAFT polymerization has an efficient chain transfer effect. Therefore, the method is favorable for advancing the RAFT large-scale industrial production, and has an extensive application prospect.

The invention relates to a heavy metal stabilizing method in a process of preparing filler by chemical sludge burning ash. An inorganic heavy metal stabilizer is prepared by using calcium oxide and potassium dihydrogen phosphate to prepare a calcium potassium phosphate cementing material supplemented by bentonite; the chemical sludge burning ash is used as a raw material, clay or shale is used as an auxiliary material, and a small amount of the inorganic heavy metal stabilizer is doped; and the raw material, the auxiliary material and the inorganic heavy metal stabilizer are mixed according to a certain proportion and stirred by adding water, pelletted and sintered to prepare the filler with small heavy metal leaching rate. The invention provides the heavy metal stabilizing method which is in good stabilizing effect and has universality to different heavy metal components and shapes. The process for preparing the filler by using the chemical sludge burning ash doped with the inorganic heavy metal stabilizer has the advantages of low operating cost, short disposal period, small secondary pollution, high degree of resources and the like compared with the conventional chemical sludge treatment and disposal manner.

The invention relates to the field of catalysis, in particular to a method for preparing aryl ketone through reacting aldehyde with aryl boric acid under the catalysis of a ruthenium catalyst. In the method, an organic phosphide is used as a ligand, potassium phosphate is used as alkali, pinacolone or acetone is used as an additive, toluene or/and water is (are) used as a solvent(s), aldehyde and aryl boric acid which are used as reaction substrates react at 95-100 DEG C for 10-24h in the presence of a ruthenium compound used as a catalyst to prepare aryl ketone, wherein the catalyst is one of [Ru(cymene)Cl2]2, [Ru(CO)3Cl2]2, RuH2(CO)PPh3, Ru2(OAc)4, [Ru(benzene)Cl2]2, Ru(S-BINAP)Cl2 or Ru3(CO)12. In the invention, the used catalyst has relatively low price and low toxicity, thereby reducing the preparation cost and being more environmentally friendly.

The invention provides a plant nutrient solution and a preparation method thereof. The plant nutrient solution is mainly prepared from, 380-420 parts of potash nitrate, 80-100 parts of potassium phosphate, 50-70 parts of hybridized adsorbing agent, 180-220 parts of epsom salt, 1.8-2.2 parts of manganese sulfate monohydrate, 2-3 parts of boric acid, 12-18 parts of Ferric sodium ethylene diamine tetraacetate, 380-420 parts of calcium nitrate terahydrate, 0.3-0.5 part of blue copperas, 0.8-1.2 parts of heptahydrate, 0.006-0.010 part of ammonium octamolybdate, 0.001-0.005 part of calcium superphosphate, 0.0008-0.0012 part of sodium chloride, 0.0008-0.0012 part of sodium molybdate and 0.0015-0.0025 part of ferrous sulfate. The plant nutrient solution is suitable for all plant growth, and the plant yield can be effectively increased; the plant nutrient solution can be used for fish culture and suitable for fish growth.

The invention discloses a delayed coagulation method of kalium-based magnesium phosphate cement, and aims to delay the coagulating time of the magnesium phosphate cement to improve hydration degree and mechanical property of the cement. The delayed coagulation method includes the steps of firstly, adding water in alkaline phosphate to dissolve the same and secondly, adding kalium-based magnesium phosphate cement into the alkaline phosphate solution. The doping mass of the alkaline phosphate accounts for 2-6% of mass of magnesium compound, potassium phosphate and boron oxide in the kalium-based magnesium phosphate cement. By the aid of dipotassium phosphate, coagulating time of the magnesium phosphate cement can be optionally adjusted in 20 minutes to 50 minutes, and the magnesium phosphate cement can be suitably used as quick repair material for civil structures at normal temperature. By the aid of tripotassium phosphate, the coagulating time of the kalium-based magnesium phosphate cement can be optionally adjusted in 40 minutes to 2.5 hours, and the kalium-based magnesium phosphate cement is suitable for various projects at normal and high temperatures.

The invention relates to a process for producing potassium phosphate with wet phosphoric acid. The process comprises the following steps that: 1) wet phosphoric acid is put into an ultrasonic reactor for ultrasonication at the temperature of 2-80 degree centigrade with the reaction time of 10-120 minutes; then the product is cooled to be at room temperature and precipitates are leached, thus obtaining a filter liquor; 2) potassium hydroxide, potassium carbonate or potassium bicarbonate is used to regulate the PH value of the filter liquor and generate precipitates, and a new filter liquor obtained after filtering is concentrated, evaporated, crystallized and then separated, thus obtaining potassium phosphate. The process is characterized in that wet phosphoric acid with low purity, purity and cost, lead-bearing material and potassium chloride are used as raw materials to react and generate potassium phosphate, which reduces production cost. Impurities in the raw materials interact and generate insoluble precipitates, and the insoluble precipitates can be easily separated. In the simple process, products are generated only by concentrating and crystallizing a neutralizer; potassium phosphate is directly prepared by utilizing phosphoric acid with the concentration of 5-40%, which solves the problems of low consistency of wet phosphoric acid and high energy consumption for concentration.

The invention discloses building microorganism biological self-repairing heat-preservation mortar and a preparation method thereof. The mortar comprises the following raw materials: 100 parts of a mineralized microorganism bacterial liquid, 100 parts of a microorganism nutrient liquid, 50-100 parts of expanded perlite, 50-100 parts of pearlife, 50-100 parts of superfine expanded perlite of 80-120meshes, 1-2 parts of a polypropylene fiber, 1-4 parts of HPMC (hydroxy propyl methyl cellulose), 10-40 parts of redispersibile latex powder, 1-4 parts of polyphenyl granules and 5-10 parts of potassium magnesium phosphate cement. The building microorganism biological self-repairing heat-preservation mortar disclosed by the invention has the characteristics of being low in heat conduction coefficient, high in strength, good in cracking resistance, good in durability, and the like, meanwhile is free of conventional cement, and has the characteristics of being green and environmentally-friendly.The microorganism heat-preservation mortar is applicable to heat-preservation plastering engineering such as heat-preservation transformation of various existing old buildings and reinforced concreteof new buildings.

The invention discloses a fertilizer special for navel orange and a preparation method thereof. The fertilizer comprises, by weight, 100-150 parts of silkworm excrement, 70-100 parts of banana stem power or grained segments, 40-60 parts of monosodium glutamate residue, 30-50 parts of urea, 15-25 parts of tripotassium phosphate, 8-12 parts of magnesium sulfate, 6-10 parts of calcium sulfate, 4-8 parts of borax, 3-5 parts of ammonium molybdate, 3-5 parts of cellulase, 4-7 parts of Bacillus subtilis, and 1-2 parts of actinomycetes. The fertilizer has the advantages that fertilizer efficacy is fast and long, stress resistance is high, fertilizer availability is high, nutrients are complete, elements are reasonably matched and the cost is lower; by using the fertilizer, yield of navel orange is greatly increased, sweetness, taste and nutritional value are also greatly improved, and the fertilizer has good economic benefit, social benefit and ecological benefit and is suitable for large-scale popularization.

The invention provides a preparation method of a water soluble epoxy resin sizing agent for an aramid fiber. The sizing agent comprises the main components of a water soluble epoxy resin, a surfactantand distilled water, wherein the mass ratio of the water soluble epoxy resin to the surfactant is (20-30):(0.6-15). The surfactant is an anionic surfactant polyacrylamide or fatty alcohol-polyoxyethylene ether potassium phosphate and a nonionic surfactant polyethylene oxide (PEO). The specific scheme is as follows: the water soluble epoxy resin and the surfactant are evenly mixed at the ratio of(20-30):(0.6-15) at the temperature of 30-50 DEG C, the distilled water is added to dilute until the solid content is 20-30%, so that the water soluble epoxy resin sizing agent for the aramid fiber isobtained. The sizing agent is high in stability and low in cost, and does not pollute the environment, and the preparation method is simple.

The invention discloses a scale inhibitor for oil refining equipment. The scale inhibitor is prepared from the following raw materials: purified water, polyisobutylene succinimide, N,N'-disalicylidene-promethylene diamine, calcium alkyl salicylate, heavy aromatics, hexadecyl dimethyl amine, 2,2,6,6-tetramethylpiperidinooxyl, toluene, sodium persulfate, hydrogen peroxide and potassium superphosphate. The scale inhibitor is used for inhibiting coking and scale deposition of various devices and equipment in petroleum refining and petrochemical processes, particularly for coking and scale deposition of hydrogenation process equipment; coking and scale deposition of heat exchangers and steam generators for catalytic cracking, delayed coking and crude oil distillation processes are inhibited; and a high scale inhibition rate is achieved with the filling amount of 80 to 100 [mu]m/g in a crude oil heat exchanger, a reactor and a heating furnace, and each component synergistically acts to achieve the carbon steel corrosion rate of 0.001 to 0.003 [mu]m*a<-1> and the calcium carbonate scale inhibition rate of 85 to 95 percent.

The invention relates to a production method of a microbial fermented seaweed fertilizer. The production method comprises the following steps: soaking dried seaweed, taking the liquid supernatant and filtering by use of an ion exchange resin, thereby obtaining a solution A; returning the solution A to a reaction kettle, adding one or two of potassium citrate, potassium oxalate, potassium pyrophosphate and the like in a certain weight ratio for softening and digesting the seaweed at a certain temperature, and performing centrifugal separation on the clear liquid obtained after processing to obtain the filtrate, namely a solution B; supplementing water to the centrifuged seaweed residue and regulating the Ph, next, adding microorganisms and a culture medium, fermenting at a certain temperature, and performing centrifugal separation after fermentation to obtain a solution C after centrifuging; mixing the solution B and the solution C and then mixing with nitrogen fertilizer, phosphatic fertilizer, potash fertilizer, chelate medium trace elements and the like in a certain weight ratio to obtain the microbial fermented seaweed fertilizer. The microbial fermented seaweed fertilizer produced by the production method is capable of improving the growing environment of crop root systems and solving the problem of soil hardening so that the soil is loose, good in moisture and fertility preservation property and excellent in air permeability; as a result, crops can grow healthily in a good environment.

There are disclosed methods for producing ammonium, sodium, and/or potassium phosphates that involve reacting phosphate rock with ammonium, sodium and/or potassium hydrogen sulfate.