73results about How to "The synthesis process is simple" patented technology

The invention discloses a novel synthetic method for 5-phenyl tetrazole, which includes the following steps: firstly performing acid neutralization to hydrazine hydrate; then adding mixing solution formed by cyanobenzene, water and ethyl alcohol to generate phenyl aminoguanidine salt; adopting sodium nitrite for diazotization to obtain nitrine amidine under the acidic condition; obtaining 5-phenyl tetrazole crude product through closed loop under the alkaline condition; obtaining 5-phenyl tetrazole acceptable product through adopting ethyl alcohol for refining. The method has the advantages of simple technology, simplicity in operation and high product yield.

A plastic masterbatch is characterized by comprising the following components: linear low-density polyethylene, fluorocarbon-modified talc, polypyrrole-modified talc, a foaming agent, and a dispersant. The invention also discloses a method for preparing the plastic masterbatch. The addition of modified talc significantly improves the conductivity and wear resistance of the plastic masterbatch.

The application provides a synthesis method of active piperidone alkaloid, and the active piperidone alkaloid is Dysidone A. The raw material piperidine is used as a substrate, and the substrate is reacted with p-methoxy benzyl chloride under the condition of N,N-diisopropylethylamine, so that the secondary amine is protected, and the side reaction of sodium hydride and hydrogen on the secondary amine is avoided. Then, the secondary amine is oxidized under the condition of iodine and iodobenzenediacetic acid. Next, the secondary amine is reacted with triethyl phosphine acetic acid ester to obtain an alpha, beta unsaturated ester. Then, the p-methoxy benzyl protection is removed by using ammonium cerium nitrate in a mild and efficient manner. Finally, the ester is reduced into an alcohol by using diisobutylaluminum hydride. The piperidone alkaloid or the like is obtained through five reaction steps. The synthesis process is simple, the raw material is cheap and easy to obtain, the cost is low, the reaction condition is relatively mild, the purity is high, and the method has good economic and social benefits.

The invention relates to a water injection well profile control method based on protection of a low permeability layer and application of the water injection well profile control method. The water injection well profile control method comprises the steps that in the first slug, a medium-low permeability layer is temporarily plugged through a temporary plugging agent; in the second slug, a gel profile control agent is used for blocking the high-permeability layer; according to the third slug, the system injected into the high-permeability layer in the early stage is moved to the deep portion of the oil reservoir through the displacement slug, and deep profile control is achieved; and in the fourth slug, a blocking remover is used for conducting blocking removal on the low-permeability layer. The method has the characteristics of simple synthesis process, no by-product, high viscosity and shear resistance, and also has excellent flowability and injectability; after the profile control system prepared by the profile control method simulates shearing of a pump, a pipeline and a stratum, the viscosity retention rate of the profile control system can still reach 92% or above, and the breakthrough pressure reaches 8-11 MPa. Therefore, the effects of high-permeability plugging and medium-low-permeability oil displacement are achieved.

The application relates to a cross-linked polyethylene dioxythiophene alcohol dispersion liquid, a preparation method and application, and belongs to the technical field of photoelectric materials. A cross-linking agent is added into a polyethylene dioxythiophene alcohol dispersion liquid, an epoxy group on the cross-linking agent and a p-anion high-fluorine sulfonic acid ion polymer in the polyethylene dioxythiophene alcohol dispersion liquid are cross-linked, a film formed by the cross-linked polyethylene dioxythiophene alcohol dispersion liquid forms a continuous three-dimensional network structure, resistance to alcohol solvents is realized, and the alcohol solution has better wettability on the surface of the cross-linked polymer film. The cross-linked polyethylene dioxythiophene alcohol dispersion liquid can be used in organic solar cells with different structures, and can be applied to other fields such as light-emitting diodes, electrochromism, bioelectronic and anti-static coating and the like.

The application provides a porous spherical high-activity magnesium oxide and a preparation method thereof; the preparation method of the porous spherical high-activity magnesium oxide comprises the following steps: S1, obtaining a magnesium bicarbonate solution; S2, performing spray drying on the magnesium bicarbonate solution to obtain light magnesium carbonate solid powder, wherein the light magnesium carbonate solid powder has a hollow spherical structure; and S3, performing calcination on the light magnesium carbonate solid powder to obtain the porous spherical high-activity magnesium oxide. The high-activity magnesium oxide with a porous hollow spherical structure can be obtained, and the prepared magnesium oxide reaches the product standard of activity-180 in the standard HG / T 3928-2012 Industrial Active Light Magnesium.

The invention discloses a low-thermal-conductivity phase change aerogel material as well as a preparation method and application thereof. The phase change enthalpy value of the material is 50J / g to 110J / g; the phase change temperature is 0-60 DEG C; and the heat conductivity coefficient is 0.08 W / (m.K)-0.1 W / (m.K). The novel low-thermal-conductivity phase-change material is generated by curing polydimethylsiloxane (PDMS) and the phase-change microcapsules. The phase change aerogel material is simple in synthesis process, relatively high in phase change enthalpy value and good in phase change cycle stability. The method has important application prospects in the two aspects of heat energy collection and heat insulation temperature control.

The application discloses an organic complex of different metals LTG-RuCe and a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method of the organic complex of different metals LTG-RuCe comprises the following steps: synthesizing a ligand HL by using methyl formylbenzoate, 2-acetylpyridine, ethanol, potassium hydroxide and ammonia water; synthesizing a ligand [Ru(HL)2]·(PF6)2 by using trichlororuthenium, the ligand HL, methanol, potassium hydroxide and HPF6; and synthesizing the organic complex of different metals LTG-RuCe by using cerium nitrate hexahydrate, the ligand [Ru(HL)2]·(PF6)2 and N,N-dimethylformamide. The organic complex of different metals LTG-RuCe synthesized by the application has high CO2 catalytic activity, good repeatability and a structure which is not easy to collapse; and the method for preparing the organic complex of different metals provided by the application has high yield and strong operability.

The invention discloses a benzothiazole non-condensed ring A-D-A '-D-A type organic solar cell acceptor material and a preparation method and application thereof, a benzothiazole unit is used as a central nuclear electron withdrawing unit (A-unit), and then the benzothiazole unit, the central nuclear electron withdrawing unit (A-unit), an electron donating unit (D-unit) and a terminal group are synthesized into the organic solar cell acceptor material with an A-D-A'-D-A structure. Wherein benzothiazole as an asymmetric central core structure can enhance the dipole moment of molecules, optimize the accumulation among the molecules and improve the blending property of a donor and an acceptor, and the characteristics can jointly promote charge transfer to inhibit the bimolecular recombination condition. The molecular morphology is regulated and controlled by connecting different structural groups to a top branched chain, and meanwhile, different atoms can be introduced into a benzene ring to regulate and control the chemical energy level. In addition, the polymer also has the characteristics that the aggregation behavior and the light absorption range of molecules can be adjusted by accessing different terminal groups. The benzothiazole-based non-fused ring A-D-A '-D-A type acceptor material provided by the invention is few in synthesis and preparation steps, simple in purification process and high in yield.

The invention discloses a full-crosslinking layered fluorine-containing epoxy super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of super-hydrophobic coatings. The coating comprises the following raw material components: epoxy resin, fluorine-containing epoxy acrylic resin, KH560 modified nano silicon dioxide, a curing agent, an accelerant and the like. The preparation method of the coating comprises the following steps: carrying out surface grafting modification on the nano silicon dioxide particles by using a KH560 siloxane coupling agent; the preparation method comprises the following steps: synthesizing fluorine-containing epoxy acrylate low-surface-energy resin by using tridecafluorooctyl methacrylate, glycidyl methacrylate and isobornyl methacrylate; the coating is prepared by adopting a step-by-step spraying method, the primer is epoxy resin, the surface wear-resistant super-hydrophobic layer is fluorine-containing epoxy acrylate low-surface-energy resin blended modified nano silicon dioxide particle filler, and the three components are integrally crosslinked through epoxy groups. According to the method, the adhesive force and durability of the coating can be improved, and the coating has good super-hydrophobic performance and is suitable for various working conditions.

The application discloses a norcantharidin derivative, a preparation method and application, and belongs to the technical field of medicine preparation. Norcantharidin and aminobenzene boronic acid are dissolved in a proper amount of dry tetrahydrofuran to obtain a crude product; ethyl acetate is added, and white solid is obtained through rotary evaporation under reduced pressure; ethyl acetate and acetone are added for stirring, and white powder norcantharidin derivative is obtained after filtration. The carboxyl of norcantharidin lactone after ring opening is connected with the amino of aminobenzene boronic acid to obtain norcantharidin derivative, which is combined with a chemotherapy drug or used as a preoperative drug to antagonize leukopenia caused by the chemotherapy drug. The norcantharidin derivative synthesized by the application has the advantages of simple method, high yield, low cost, remarkable effect of increasing white blood cells, effective reduction of the toxic side effect of norcantharidin, high oral bioavailability and improved curative effect.

This invention discloses an antimicrobial peptide, its pharmaceutical composition, and its applications. The invention optimizes the structure of the antimicrobial peptide through deuteration modification technology, significantly enhancing its targeted binding ability to β-1,3-D-glucan synthase. The affinity of this antimicrobial peptide for the aforementioned target is 9-27 times that of the control peptide. In vitro assays show that its minimum inhibitory concentration (MIC) against nine standard Candida strains is consistently 0.002 μg / mL, exhibiting significantly superior activity compared to fluconazole, anidoxurine, and the control peptide. It also exhibits extremely low cytotoxicity against L02 human normal hepatocytes. In in vivo experiments, in a neutropenic mouse model of Candida albicans infection, the antimicrobial peptide at all doses showed superior reduction in renal fungal load compared to anidoxurine and the control peptide. The antimicrobial peptide of this invention combines highly efficient anti-Candida activity, low cytotoxicity, and excellent in vivo efficacy, providing a safe and effective candidate drug for the treatment of drug-resistant candidiasis and possessing good clinical translational value.

The invention relates to a sulfonyl-containing gel polymer electrolyte and a preparation method and application thereof, a sulfonyl-containing compound is used as a polymerizable monomer, an electrolyte precursor solution is prepared, and the sulfonyl-containing gel polymer electrolyte is formed after polymerization; the gel polymer electrolyte can be used for a lithium ion battery, a lithium metal battery or a lithium secondary battery, is particularly suitable for a high-nickel lithium battery, and can improve the cycling stability and safety of the lithium battery under high voltage; the sulfonyl-containing polymerizable monomer is simple in synthesis process, low in cost and relatively high in yield; and the method is highly matched with the preparation process of the current battery and is very suitable for large-scale production.

The invention relates to the technical field of conjugated microporous polymer materials, and discloses a covalent triazine unit-based conjugated microporous polymer membrane with negative charges and a preparation method thereof. The method comprises the following steps: firstly, preparing a negatively charged cyanophenyl monomer through nucleophilic substitution reaction of a cyanophenyl-containing compound and 1, 4-butane sultone, then taking the monomer and biphenyl nitrile as comonomers, and carrying out step-by-step polymerization, heating film formation, shock cooling shaping and dual-solvent soaking post-treatment under the catalysis of trifluoromethanesulfonic acid to obtain the cyanophenyl-containing polymer film. And finally obtaining the covalent triazine unit-based conjugated microporous polymer membrane with negative charges. The preparation process is high in controllability, and the obtained film has high stability of a covalent triazine structure and the porous characteristic and negative charge function of conjugated micropores, and has wide application prospects in the fields of gas separation and the like through verification.

The application provides a bismaleimide-polyether amine photocuring resin and a preparation method thereof. 100 parts of bismaleimide and 100-200 parts of polyether amine are pre-reacted, 0.001-5 parts of a catalyst, 0.001-1 parts of a polymerization inhibitor and 100-400 parts of glycidyl methacrylate are added to carry out grafting reaction, and the bismaleimide-polyether amine photocuring resin is obtained. The bismaleimide-polyether amine photocuring resin provided by the application has the characteristics of realizing photocuring through ultraviolet light irradiation on the basis of retaining the excellent thermal performance and good mechanical performance of traditional bismaleimide, and effectively solves the problem of poor forming performance. The method disclosed by the application has simple process and mild reaction conditions, is suitable for industrial production, and the prepared material has wide application potential in the fields of photocuring printing and electronic packaging.

This invention discloses a method for preparing γ-phase gallium oxide nanosheets, the γ-phase gallium oxide nanosheets themselves, and their applications. The method for preparing γ-phase gallium oxide nanosheets includes the following steps: diluting and evaporating an acidic solution of Ga(NO3)3 to obtain a precursor crystal; mixing the precursor crystal, an organic solvent, and water to dissolve the crystal, obtaining a precursor solution; adding a precipitant to the precursor solution and adjusting the pH to 10.0-11.0 to obtain a suspension; transferring the suspension to a hydrothermal reactor and storing it at 160℃-300℃ for 6-9 hours, followed by solid-liquid separation, washing, and drying to obtain γ-phase gallium oxide nanosheets. This invention can obtain γ-Ga2O3 nanosheets and can effectively improve the yield and size uniformity of γ-Ga2O3 nanosheets.

The application discloses a preparation method of a pyrrolidone derivative. Under the action of a non-precious bimetallic multifunctional catalyst, an acetylenic acid derivative shown in formula I is reacted with an amine, a nitro compound or a nitrile compound shown in formula II in a reaction solvent under the heating and stirring of hydrogen gas to prepare a pyrrolidone derivative shown in formula III, and a reaction formula is as follows: the non-precious bimetallic multifunctional catalyst is a nitrogen-doped carbon-based carrier NC derived from a metal-organic framework material ZIF-8 and an effective active ingredient embedded on the carrier NC; the effective active ingredient comprises two metals, one metal is Co, and the other metal is any one of Ni or Cu. The yield of the pyrrolidone derivative synthesized by the method can reach 77% to 100%. The method has the advantages of simple process, high selectivity of the target product, cleanness and environmental protection, small catalyst consumption, low cost, simple catalyst preparation, high catalytic stability and suitability for industrial production.

This invention relates to a method for preparing a proton exchange membrane for water electrolysis and fuel cells, and its application, belonging to the technical field of proton exchange membrane materials. First, a main chain containing an arylpyridine polymer is prepared. Then, diamine-functionalized graphene oxide is introduced into the side chain. Next, cesium salts of heteropoly acids are doped during membrane fabrication. The main chain of the exchange membrane of this invention uses an arylpyridine polymer, which has excellent alkali resistance and a simple synthesis method and process. The side chain contains diamine-functionalized graphene oxide, and the doping of cesium salts of heteropoly acids within the membrane provides strong mechanical strength and proton conductor adsorption sites, effectively improving ionic conductivity and reducing acid loss during operation. The proton exchange membrane prepared by this invention is applied to high-temperature water electrolysis and medium-high temperature fuel cells.

The invention discloses a preparation method of landiolol hydrochloride, and belongs to the technical field of medicine synthesis. The method comprises the following steps: carrying out condensation reaction on S-3-chloro-1, 2-propylene glycol and acetone under the protection of nitrogen and the action of a catalyst, adding alkali, and concentrating to generate an intermediate I; the method comprises the following steps: adding p-hydroxyphenylpropionic acid, alkali and a phase transfer catalyst into a solvent, and reacting to generate salt; then adding the intermediate I, and reacting to generate an intermediate II; dissolving the intermediate II, R-(-)-epichlorohydrin, alkali and a phase transfer catalyst in a solvent, and reacting to generate an intermediate III; dissolving N-(2-aminoethyl)-4-morpholine amide oxalate in water, adjusting the alkali, adding the intermediate III, and reacting to generate a landiolol crude product; the method comprises the following steps: dissolving a landiolol crude product in a solvent, and adding oxalic acid to react to generate oxalic acid landiolol; and after alkali adjustment, hydrochloric acid ethyl acetate is added to generate landiolol hydrochloride. The method has the characteristics of simplicity and convenience in operation, high yield, stable product quality and environmental friendliness, is good in process repeatability and is suitable for industrial large-scale production.

The application belongs to the technical field of mechanical color-changing materials, and relates to a preparation method and application of a pyrylium salt organic molecule and a host-guest complex thereof. The host-guest complex comprises 2,6-di(4-methoxyphenyl)-4-phenylpyrylium p-toluenesulfonate as described in formula (I) and calix[10]urea. The complex is a smart color-changing material, and the guest molecule only shows a fluorescence color-changing behavior under the stimulation of mechanical force, and the host-guest complex shows a phosphorescence color-changing behavior under the stimulation of mechanical force.

This invention provides a controllable synthesis method for 1,4,7,10-tetraazacyclododecanepentazole salt, belonging to the field of energetic materials technology. It includes two synthesis methods: the first is the synthesis of 1,4,7,10-tetraazacyclododecane dipentazole salt, in which 1,4,7,10-tetraazacyclododecane tetrahydrochloride is dissolved in deionized water, at least 4 equivalents of silver pentazole powder are added, the reaction is performed ultrasonically and in the dark, the precipitate is filtered, and the filtrate is concentrated to obtain the product; the second is the synthesis of 1,4,7,10-tetraazacyclododecane pentaazole nitrate complex salt, which differs from the first in that 1 equivalent of silver nitrate and at least 3 equivalents of silver pentazole powder are added. This invention, by controlling the amount of silver salt added, directly synthesizes dipentazole salt and pentaazole nitrate complex salt from 1,4,7,10-tetraazacyclododecane tetrahydrochloride in one step, solving the problems of difficult raw material synthesis and uncontrollable product structure, laying the foundation for the large-scale preparation and application of energetic materials.

The application discloses gold nanoparticle loaded polycrystal face zinc oxide photocatalyst and a preparation method and application thereof, relates to the fields of catalyst preparation and photocatalysis technology. By means of hydrothermal method and calcination treatment, ZnO nanorods and ZnO nanosheets exposing different crystal faces are prepared by controlling the amount of surfactant; finally, gold nanoparticles are loaded on the ZnO by means of photoreduction method to construct Au-ZnO material. The preparation method disclosed by the application can realize efficient and high-selectivity photocatalytic CH4 oxidation coupling to prepare C2H6 at normal temperature and pressure, meets the requirements of sustainable development energy strategy, and has wide application prospect. By the above method, ZnO nanorods mainly exposing 0110 / 1010 crystal faces and ZnO nanosheets mainly exposing 0001 crystal faces are synthesized, and the performance is optimized by specific crystal face regulation, so that the efficiency of methane oxidation coupling is greatly improved.

The invention discloses a double-component curing filling adhesive with long operation period, low moisture absorption and low hydrogen evolution as well as a preparation method and application of the double-component curing filling adhesive. The two-component curing filling adhesive comprises a component A isocyanate phase and a component B latent amine curing agent phase, and is characterized in that the component A isocyanate phase comprises an isocyanate-terminated prepolymer, epoxy resin, hydrophobic fumed silica, silanized nano aluminum oxide and polyether modified siloxane; and the component B latent amine curing agent phase comprises an acylphosphine oxide photoinitiator, a 4, 4 '-diaminodiphenylmethane curing agent microcapsule, a Lewis acid inhibitor and a hydrogen inhibitor. The two-component curing filling adhesive disclosed by the invention has an operation period of 12 hours; the double-component curing filling adhesive is used for bonding optical fibers, the hydrogen evolution amount (24h, 80 DEG C) is 0.15 mu L / g, and the moisture absorption weight gain rate is 0.13%; the double-component curing filling adhesive prepared by the invention can be completely cured within 120 minutes when being heated at 40 DEG C under 365nm ultraviolet radiation.

The invention provides a micromolecular organic phosphonate catalyst as well as a preparation method and application thereof. The structure of the micromolecular organic phosphonate catalyst is RPO32-. M < 2 + >, RPO32-. 2 / 3M < 3 + >, RPO32-. 1 / 2M < 4 + >, RPO32-. 2 / 5M < 5 + > or RPO32-. 1 / 3M < 6 + >, the catalyst provided by the invention is used for preparing 5-hydroxymethylfurfural, the reaction condition is mild, the conversion rate is high, the yield is high, large-scale production is facilitated, the synthesis process is simple and convenient, the cost is low, and the economic applicability of industrial production is met.

The invention discloses an epoxy resin composition containing a phosphorus-containing flame-retardant curing agent as well as a preparation method and application of the epoxy resin composition, and belongs to the technical field of preparation of flame-retardant epoxy resin compositions. The epoxy resin composition comprises the following components in parts by weight: 80-100 parts of an epoxy resin matrix, 10-30 parts of a phosphorus-containing flame-retardant curing agent, 6-60 parts of a curing agent, 0.1-0.3 part of an accelerant, 10-30 parts of a synergistic flame retardant, 40-60 parts of filler and the like. The phosphorus-containing flame-retardant curing agent is prepared from phenyl phosphoryl dichloride and a bisphenol compound through a polymerization reaction. The phosphorus-containing flame-retardant curing agent with phenolic hydroxyl reaction active groups is prepared by using low-cost phenylphosphoryl dichloride as a raw material and is matched with an existing flame-retardant system, so that the contradiction between the flame-retardant property and the physical property (mainly Tg) of an epoxy resin material is solved; and the flame retardant grade of V-0 and the higher glass transition temperature can be achieved when the addition amount of the flame retardant is lower.

This invention belongs to the field of chemical production technology, specifically disclosing a method for preparing high-purity silica, comprising the following steps: S1, grinding: crushing and grinding minerals or waste containing silica or silicates; S2, leaching: mixing with a leaching agent in a certain proportion to carry out a leaching reaction, followed by solid-liquid separation to obtain a fluoride ion complex solution containing fluorosilicic acid; S3, extraction: separating fluorosilicic acid from fluoride ion complex impurities using an extraction method to obtain a high-purity fluorosilicic acid or fluorosilicate solution; S4, pH adjustment: performing a metathesis reaction by adjusting the pH, followed by solid-liquid separation to obtain solid silica and soluble fluorides; S5, obtaining high-purity silica. This invention, employing the above-mentioned method for preparing high-purity silica, is applicable to most silicon-containing raw materials, effectively reducing the impurity content in silicon slag, and preparing high-purity silica with a purity of up to 99.99%.

The invention discloses a near-infrared double-state light-emitting platinum complex fluorescent probe and application thereof in hypochlorite detection. The structural formula of the near-infrared double-state light-emitting platinum complex fluorescent probe is shown in the specification. R1 and R2 are one of H, CH3, C2H5 and C (CH3) 3; the four technical elements of near-infrared emission, double-state luminescence, a platinum complex phosphorescent probe and hypochlorite specific recognition are integrated into the same molecular system for the first time, and a novel platinum complex fluorescent probe which keeps efficient near-infrared luminescence in a solution state and an aggregation state and realizes high-sensitivity and high-selectivity detection on hypochlorite is provided. The double dilemma of solid state quenching of a traditional ACQ material and weak luminescence of a solution of a classical AIE material are broken through, and the blank in the technical field is filled. The novel platinum complex fluorescent probe shows high selectivity, high stability, wide pH application range, low cytotoxicity and good biocompatibility on hypochlorite.

The invention belongs to the technical field of building materials, and provides an early-strength functional monomer, an early-strength polycarboxylic acid water reducing agent and application of the early-strength functional monomer and the early-strength polycarboxylic acid water reducing agent. The chemical structural formula of the early strength functional monomer is as shown in formula (I). The preparation method of the early-strength polycarboxylate superplasticizer comprises the step of carrying out free radical polymerization reaction on an unsaturated polyether macromonomer, an early-strength functional monomer as shown in the formula (I), unsaturated carboxylic acid and a polysaccharide-based graft copolymer to obtain the early-strength polycarboxylate superplasticizer. The early strength functional monomer provided by the invention is obtained by reacting N-(beta-aminoethyl)-alpha-aminopropyltrimethoxysilane and an acrylic monomer, the raw materials are easy to obtain, the cost is low, the early strength functional monomer can be prepared only by one-step reaction, the synthesis process is simple, the post-treatment is convenient, the reaction condition is mild, and the early strength functional monomer can be applied to the polycarboxylate superplasticizer, so that the early strength functional monomer has a good application prospect. The polycarboxylate superplasticizer can generate a synergistic effect with the unsaturated polyether macromonomer, unsaturated carboxylic acid and the polysaccharide-based graft copolymer, so that the polycarboxylate superplasticizer has excellent early strength effect and binding material environmental adaptability. Formula (I).

The utility model discloses an economical brazed diamond single crystal bearing, which belongs to the technical field of bearings, and comprises a movable ring and a static ring, and a plurality of sliding friction pairs are formed by sleeving or attaching the movable ring and the static ring to braze and fix diamond single crystal particles on a friction surface or by combining polycrystalline diamond compacts. The PDC bearing has the remarkable advantages of simplicity and convenience in process operation, controllable production cost and the like, and solves the problems of high cost and poor universality of the existing PDC bearing.

The application relates to the technical field of battery material preparation, and discloses a preparation method of iron phosphate, which comprises the following steps: obtaining iron ore acid leaching solution, the pH value of the iron ore acid leaching solution is 1.5-3.5; taking at least part of the iron ore acid leaching solution as the bottom liquid of a reaction kettle, adding a phosphorus-containing mixed solution into the reaction kettle for a synthesis reaction, the dropping time is controlled to Tmin, T <= 420n, n is the unit volume molar number of iron ions in the iron ore acid leaching solution, after the dropping is completed and sufficient reaction is carried out, solid-liquid separation is carried out to obtain first solid material containing iron phosphate; extracting anhydrous iron phosphate from the first solid material; the phosphorus-containing mixed solution contains phosphoric acid and a first oxidant. The method realizes the regulation of the crystal morphology and the microstructure of the iron phosphate, can obtain iron phosphate with various morphologies, provides a feasible direction for preparing iron phosphate with different morphologies, and meets the application requirements in different fields; the preparation process does not introduce alkali liquor, the cost is reduced, and the prepared finished product has low impurity content.