68results about How to "Good potential for industrial application" patented technology

The invention discloses a synthetic method of 2,5-furan dimethanol and an etherified product of 2,5-furan dimethanol and relates to 2,5-furan dimethanol. The synthetic method comprises the following steps of: adding organic alcohol into a reaction substrate; putting the obtained mixture as a raw material in a high pressure reaction kettle; adding a certain amount of a molecular sieve supported catalyst; and performing a heating reaction to obtain 2,5-furan dimethanol and the etherified product of 2,5-furan dimethanol. By using alcohol as a hydrogen donor and a reaction substrate, no external hydrogen source does not needed. By adjusting the acid-base property of a catalyst through an active metal component, 2,5-furan dimethanol can be obtained by selectively catalyzing transfer hydrogenation of 5-hydroxymethylfurfural or 2,5-dialkoxyl methyl furan is obtained by further etherification. The catalyst is cheap and easily available and good in repeatability, no excessively hydrogenated product exists, and the whole reaction is hydrogenated in a hydrogen environment, and the synthetic method has relatively strong operating safety of industrial production and very good industrial application potential.

The invention provides a genetic engineering strain used for producing 2-hydroxyphenazine and a preparation method and application of the genetic engineering strain. The genetic engineering strain is prepared through the following step of replacing a phzH gene in a genome of Pseudomonas chlororaphis HT66 CCTCCNO: M2013467 and a derivative with an exogenous phzO gene. The preparation method comprises the following steps of constructing a recombinant plasmid, hybridizing parents and screening a gene replaced mutant strain. The high-level phenazine synthesis capability of the strain HT66 is utilized, the phzH gene in the strain HT66 is replaced with the exogenous phzO gene, the high-concentration phenazine-1-carboxylic acid is taken as a substrate, and is further transformed into 2-hydroxyphenazine under the action of a phzO protein. The genetic engineering strain is high in stability, produces less by-products, is short in fermentation period, and is favorable for the industrialized production of 2-hydroxyphenazine.

The invention discloses a sulfonic functionalized mesoporous silicon dioxide microsphere loaded metal oxide catalyst and a preparation method and application of the catalyst. According to the invention, sulfonic mesoporous silicon dioxide nano-microspheres are prepared by using a sulfonic grafting method; then, by taking sulfonic acid functionalized mesoporous silicon dioxide microspheres which are provided with uniform channels, and are large in specific surface area and good in thermal stability as carriers, transition metal ions are connected to functional groups of the channels under the action of covalent bonds; and under the hydrothermal-roasting condition, the transition metal ions adsorbed in the channels grow into nano metal oxides through in-situ growth. The preparation method disclosed by the invention is simple and practical; the prepared catalyst has a good catalytic activity in the catalytic activation of a hydrogen peroxide oxidation reaction, and the consumption of the catalyst is low, the reaction conditions are mild, and the catalyst can be repeatedly used for multiple times, and therefore, the catalyst has good industrial application potential.

The invention discloses a 2, 5-furandicarboxylic acid preparing method. The 2, 5-furandicarboxylic acid preparing method comprises adding a mixture of reaction substrate and a double-component solventsystem into a reactor, then adding in catalysts and alkali, sealing up the reactor, then passing the reactor through a gas source containing oxygen, heating the reactor for reaction to obtain 2, 5-furandicarboxylate, and after the reaction is completed, regulating the pH of reaction liquor with concentrated hydrochloric acid to obtain 2, 5-furandicarboxylic acid. The 2, 5-furandicarboxylic acid preparing method is high in concentration of the reaction substrate as well as yield and purity of target products, energy-efficient and environmentally friendly, thereby having a good application prospect.

The invention relates to a method for preparing a covalent organic framework material by high-pressure homogenization. According to the synthesis method, at normal temperature and normal pressure, a common organic ligand is used as a raw material, water or an organic reagent is used as a solvent and a template agent, organic acid and inorganic acid are used as catalysts, and the corresponding COFs are obtained by homogenizing for a certain time through a high-pressure homogenizer. The method comprises the following steps of: adding 2, 4, 6-trihydroxy-1, 3, 5-benzenetricarboxaldehyde and p-phenylenediamine into a beaker, adding a proper amount of water and acetic acid, uniformly mixing, adding the mixture into a high-pressure homogenizer, and homogenizing for a certain time; and carrying out suction filtration on the product powder after the homogenizing reaction, recycling the filtrate, washing the product powder, and carrying out vacuum drying to obtain the covalent organic framework material HPH-Tp-Pa-1. Compared with other COFs preparation methods, the method provided by the invention has the advantages of continuous reaction, simple operation, low cost, high yield, environmental protection, energy saving, short reaction time and the like, has the potential of large-scale production, and can greatly promote the industrial production process of the COFs material.

The invention belongs to the technical field of electrochemistry, and particularly relates to a self-supporting composite film for liquid-phase zinc ion battery and preparation method thereof, comprising the following steps: carrying out hydrothermal reaction on vanadium pentoxide and metal ion-containing salt to obtain a vanadium oxide precursor embedded with metal ions; carrying out hydrothermalself-assembly on the vanadium oxide precursor pre-embedded with the metal ions and the carbon nano tubes to form a metal ion pre-embedded layered vanadium pentoxide nanobelt / carbon nano tube compound; and carrying out vacuum filtration and freeze drying treatment on the metal ion pre-embedded layered vanadium pentoxide nanobelt / carbon nano tube composite to form the self-supporting composite film. The self-supporting composite film prepared by the invention can be used for a liquid-phase zinc ion battery, and has the advantages of large specific capacity, high coulombic efficiency, stable cycle performance and good rate capability; the raw materials of vanadium pentoxide and carbon nano tubes are commercial materials; and the synthesis process is simple, the yield is high, the repeatability is good, and the self-supporting composite film has good industrial application potential.

The invention discloses a carboxylic ester structure containing diene monomer and polyester thereof, and sulfur-containing polyester. The monomer is prepared through the following steps: 1) with one selected from the group consisting of vanillin, syringaldehyde, p-hydroxybenzaldehyde, 3-fluoro-4-hydroxybenzaldehyde, 3-bromo-4-hydroxybenzaldehyde and 3-methyl-4-hydroxybenzaldehyde as a raw material, dissolving the raw material into an organic solvent, then allowing an obtained solution to react with alkenyl halide under the action of a catalyst, and allowing a reaction product to be recrystallized or separated through a chromatography column so as to obtain an olefine aldehyde monomer; and 2) with the olefine aldehyde monomer as a raw material, allowing the olefine aldehyde monomer to reactunder the action of a catalyst and a promoter without a solvent or after the olefine aldehyde monomer is dissolved in an organic solvent, and allowing a reaction product to be recrystallized or separated through a chromatography column so as to obtain the carboxylic ester structure containing diene monomer. The polyester provided by the invention is prepared under the action of a Hoveyda-Grubbs catalyst and p-benzoquinone. The sulfur-containing polyester provided by the invention is prepared by a reaction of the polyester and a dimercaptan compound. The invention relates to a novel monomer and a polymer. The preparation processes for the monomer and the polymer provided by the invention have the characteristics of rich raw material sources, simple preparation process, no generation of flammable and explosive low-boiling-point volatile matters, greenness, environmental friendliness and universality.

The invention provides a genetic engineering strain for producing 1-hydroxyphenazine as well as a preparation method and applications of the genetic engineering strain. The genetic engineering strain is obtained through the following method: the phzH gene in Pseudomonas chlororaphis HT66 CCTCC NO:M2013467 and the genome of the derivative of the phzH gene is replaced by the exogenous phzS gene. The preparation method comprises the following steps: construction of recombinant plasmids, biparental hybridization, and screening of gene substitution mutant strains. For the first time, the exogenous phzS gene replaces the phzH gene in the strain HT66, the obtained genetic engineering strain can produce high-concentration phenazine-1-carboxylic acid through fermentation by taking natural agricultural and sideline products as raw materials, the high-concentration phenazine-1-carboxylic acid is taken as a substrate and is converted, and thus the high-level 1-hydroxyphenazine is obtained. The genetic engineering strain is safe and reliable, is friendly to the environment, and can be used for preparing 1-hydroxyphenazine.

The invention discloses a rapid regeneration method of a positive electrode material of a waste ternary lithium ion battery. The rapid regeneration method comprises the following steps: manually disassembling the waste ternary lithium ion battery, cleaning with dimethyl carbonate, soaking with NMP, centrifuging, oxidizing, spray-drying, grinding and calcining to obtain waste ternary positive electrode material powder; a combined process of pre-oxidation treatment, spray drying and high-temperature short-time annealing is provided to regenerate the waste ternary positive electrode material; a rock salt phase on the surface of the waste ternary lithium ion battery positive electrode material is oxidized, alkali is added to generate a layered intermediate phase, lithium mixing and grinding are performed, and short-time high-temperature annealing treatment is performed, so that the intermediate phase can form a layered oxide phase to repair a failed surface; meanwhile, lithium lost in thecirculation process can be supplemented, so that the positive electrode material is regenerated; and the method provided by the invention can realize rapid repair and regeneration of the waste ternarypositive electrode material, has the characteristics of simple operation, high efficiency and economical efficiency and no pollution, and provides a new idea for recovery and regeneration of the ternary positive electrode material of the waste lithium ion battery.

The present invention relates to a method for efficiently separating and enzymolyzing lignocellulose with an ionic liquid-high boiling alcohol composite system. The method comprises the following basic steps: pulverizing lignocellulose to 20 mesh or smaller; after non-structural components are removed by one or more combinations of hot water, organic solvent and a neutral detergent, pre-treatmentis conducted with an ionic liquid-high boiling alcohol composite system; and after the treatment is completed, solid-liquid separation is performed to obtain cellulose-rich solids and a filtrate, thesolids are enzymatically hydrolyzed to obtain a sugar solution, and water is added to the filtrate to regenerate the composite system. Advantages are as follows: a series of advantages of low cost ofproton-type ionic liquid, high pretreatment separation efficiency, high boiling alcohol as a good solvent for lignin, etc. are fully combined, production costs are further reduced, high-efficient removing of the lignin is conducted, the efficient pretreatment and enzymolysis of the lignocellulose are further realized, and the method is strong in practicability and has good industrial application potential.

The invention discloses bacillus subtilis for improving the yield of 2-fucosyllactose and a construction method and application of the bacillus subtilis. Bacillus subtilis 168 serves as an original strain, a constitutive promoter Psrfa is adopted to express an exogenous gene bifunctional enzyme L-fucokinase fkp on a genome, a constitutive promoter P43 is adopted to express exogenous genes alpha-1,2-fucosyltransferase futC, lactose transporter lac12 and endogenous gene monosaccharide protease glcp on the gene respectively, and ribosome binding site RBS sequences of fkp, futC, lac12 and glcp are respectively optimized to obtain the bacillus subtilis for improving the yield of the 2'-fucosyllactose. By optimizing the RBS sequence, 2'-FL metabolic pathway key gene is systematically optimized, the initial translation rate of the gene is improved, the final 2'-FL fermentation yield reaches 1.0 g / L, the operation is simple and convenient, and the improvement effect is remarkable.

The invention discloses a chitosanase Csn-PT. The amino acid sequence of the chitosanase Csn-PT is shown as SEQ ID NO. 1. The invention further discloses a gene for coding the chitosanase Csn-PT, andthe nucleotide sequence of the gene is shown as SEQ ID NO. 2. The invention also discloses application of the chitosanase Csn-PT in degrading chitosan and application of the chitosanase Csn-PT in preparing an enzyme preparation for degrading chitosan. The chitosanase Csn-PT provided by the invention is used for degrading chitosan, has the optimum pH of 8, the optimum reaction temperature of 50 DEGC and the specific enzyme activity is 10163.826 U / mg, the chitosanase Csn-PT has high catalytic activity, and has obvious advantages in the aspects of catalytic activity and efficiency compared withreported chitosanase.

The invention discloses a preparation method and application of a 0D / 2D heterostructure composite cathode material. According to the preparation method, a two-dimensional lithium titanate nanosheet isprepared through a solvothermal method and thermal treatment, zero-dimensional metallic oxide nanocrystals are purchased from commercialized products and subjected to protonation treatment, two materials are dispersed in an organic solvent and then are uniformly mixed, and a 0D / 2D heterostructure is formed under electrostatic interaction. According to the heterostructure, the 0D metallic oxide nanocrystals have good electrolyte wettability as a polar material, prevent self-aggregation of the lithium titanate nanosheet, increase the tap density of the lithium titanate nanosheet and improve gasgeneration in the lithium titanate charging / discharging process. Besides, a heterojunction interface can stimulate an electric constraint effect of the lithium titanate nanosheet and enhance storageof lithium ions, and therefore the heterostructure material can show good electrochemical properties and safety characteristics. The preparation method meanwhile has the advantages of being simple inpreparation technology, good in technological repeatability, low in cost, environmentally friendly and the like.

The invention discloses a preparation process of a broadband cerium oxycarbonate hydrate microwave absorbent, and belongs to the technical field of microwave absorption. The butterfly-shaped cerium oxycarbonate hydrate is rapidly synthesized by taking cerium nitrate hexahydrate and urea as raw materials and adopting a one-step microwave hydrothermal reaction. The cerium oxycarbonate hydrate microwave absorbent rapidly prepared through a one-step microwave hydrothermal method is novel in morphology and short in reaction time, the morphology and size of the product can be adjusted and controlled by changing the reaction temperature, the ratio of the amount of substance of an alkali source to the amount of substance of a cerium source, time and concentration, and the microwave absorbent has excellent microwave absorption characteristic. The controllable preparation process method disclosed by the invention is simple to operate, short in time and novel and uniform in product morphology, overcomes the characteristics of harsh reaction conditions, complex reaction process, no environmental protection, single reaction product morphology and the like in the previous preparation process, has good industrial application potential, and is expected to be popularized and applied in the market.

The invention discloses a forming method of a liquid crystal polymer film and film blowing equipment. The film blowing equipment comprises an extruder, a co-extrusion die head, a first air ring and asecond air ring, wherein the co-extrusion die head is arranged at the tail end of the extruder and comprises a plurality of sub-runners and a co-extrusion runner, and the tail ends of the sub-runnersare connected with the starting end of the co-extrusion runner; the number of the sub-runners is greater than or equal to 5; the first air ring is connected with an opening die of the co-extrusion diehead; and the second air ring is arranged above the first air ring. According to the forming method of the liquid crystal polymer film and the film blowing equipment, the single-layer or multi-layerliquid crystal polymer film with continuously adjustable anisotropy can be directly prepared by adjusting the blow-up ratio, the die head temperature and the co-extrusion layer combination. Compared with the prior art, the forming method and the film blowing equipment have substantive features and remarkable technical progress.

The invention discloses a preparation method of double-pyridine type ironic liquid. The preparation method comprises the following steps of: arranging at least one layer of cation exchange membrane inan electrolytic bath; adopting PbO2 as an anode and graphite as a cathode; taking a 2,2-bi-(4-alkyl pyridine)methyl-1,3-propylene glycol water solution of which the concentration is 2-4 mol / L as anolyte; taking an acetonitrile and water mixed solution of KBr of which the content is 8-13 wt% as catholyte; switching on the power; carrying out constant-current electrolysis for 1-5 hours under the conditions that the electrolysis temperature is 40-65 DEG C and the current density is 0.5-2 A / dm<2>; and taking out the catholyte after the electrolysis is ended so as to obtain the double-pyridine type ironic liquid. The preparation method disclosed by the invention is simple in preparation and purification processes and is also relatively high in yield; and meanwhile the prepared double-pyridinetype ironic liquid realizes good application prospects in the aspects such as catalysis and electrochemistry.

The invention discloses a method for preparing high-quality crop straw dissolved pulp through hydrothermal pretreatment. The method comprises the following basic steps: screening crushed straws to obtain a long fiber raw material; soaking the screened long fiber raw material in hot water to remove non-structural components; carrying out hydrothermal pretreatment on the water-insoluble straws, thenextracting by using an alkaline method; extracting lignin from the straws subjected to alkali treatment by using high-boiling alcohol, and bleaching the straws by using a sodium chlorite acidic solution; fully washing the bleached straws, and pulping the straws by a pulping board to obtain a finished product of straw dissolved pulp. The method has the advantages that the process is simple and easy to operate, the high-quality crop straw dissolved pulp is produced at a low cost, meanwhile, three components in the straws are effectively separated and utilized, and the production process is highin practicability and has good industrial application potential.

The invention discloses a method for efficiently converting furfural to gamma-valerolactone by using POMOF catalyst synthesis and a one-pot method. In an isopropanol solvent, the one-pot method is used for converting the furfural into the gamma-valerolactone. The reaction process comprises the following steps: putting furfural, isopropanol and POMOF into a high-pressure reaction kettle, uniformlycarrying out mixing, carrying out sealing, then carrying out stirring for 1-48 hours at a temperature of 120-180 DEG C, and carrying out cooling to obtain a gamma-valerolactone solution. The catalystused in the method is cheap, is easily available, and has stable catalytic performance and good reusability. In addition, a hydrogen environment is not needed in the whole reaction, inorganic acid isnot used, and high operation safety and very good industrial application potential are achieved.

The invention relates to a chitosanase CsnA1 derived from deep-sea microorganisms and an application thereof. The amino acid sequence of the chitosanase CsnA1 is shown in SEQ ID NO.1. The invention provides a fermentation and purification method of chitosanase CsnA1, the enzyme activity of the fermentation liquid is as high as 379.9 U / mL, the purity of one-step purification is >95%, and the recovery rate is 93.7%. The chitosanase CsnA1 of the present invention has psychrophilic properties, the optimum reaction temperature is 25°C, and the detection activity at 0°C, 10°C, and 15°C can reach 67.6%, 81.5% and 89.3% of the optimum reaction temperature . The chitosanase CsnA1 degrades chitobiose and chitotriose as main products, and has good application potential.

The present invention relates to a liquid crystal polymer film and a manufacturing method thereof, the liquid crystal polymer film comprises a core liquid crystal polymer layer and a composite liquidcrystal polymer layer covering at least one surface of the core liquid crystal polymer layer, and the core liquid crystal polymer layer comprises a liquid crystal polymer resin with a melting point ofTm1; the composite liquid crystal polymer layer comprises liquid crystal polymer resin with the melting point of Tm1 and liquid crystal polymer resin with the melting point of Tm2, Tm1 is larger thanTm2, and the liquid crystal polymer resin with the melting point of Tm2 accounts for 10.0-80.0% of the total mass of the liquid crystal polymer film. The technical problem that the bonding strength between the liquid crystal polymer film and the metal foil and the heat resistance and the high-frequency characteristic of the liquid crystal polymer film are difficult to combine at the same time inthe process of preparing the circuit substrate of the liquid crystal polymer material in the prior art can be solved.

The invention relates to a novel chitosanase CsnF and an application thereof. The amino acid sequence of chitosanase CsnF is shown as SEQ ID NO. 1. The invention provides a preparation method for recombinant expression of chitosanase CsnF in Pichia pastoris, and a fermentation process of the recombinant bacteria, wherein the enzyme activity of the fermentation liquid is as high as 376.6 U / mL, theinvention provides a method for purifying the chitosanase CsnF, the purity is greater than 95%, and the recovery is as high as 92.2%. The chitosanase CsnF of the invention has good stability, and themain products of degradation are chitobiose and chitotriose, and the chitosanase CsnF has good industrial application potential.

The invention discloses a preparation method of a sulfonic acid functionalized inorganic-organic hybrid polymer catalyst. The method has a simple process and is convenient to operate without the needof specific precision and expensive devices. No precious metal participates in the preparation of the catalyst, and the catalyst simultaneously contains multiple catalytic sites such as Lewis acid sites / Lewis basic sites and Br-nsted acid sites and has good catalytic activity and cost advantage. According to the method for preparing the catalyst, lower alcohol, which is cheap and easily available,can be used simultaneously as an in situ hydrogen donor, an etherification reactant and a reaction medium, and 5-hydroxymethylfurfural is subjected to continuous reduction and etherification to be converted into corresponding 2,5-dialkyloxymethyl furan by a stepwise temperature control method. The whole process requires no additional exogenous hydrogen donor or other reaction solvent. The reaction system composition is safe and simple, which facilitates separation of the target product. More importantly, the stepwise temperature control method enables the Lewis acid sites / Lewis basic sites and Br-nsted acid sites of the catalyst to perform the catalytic action respectively at an appropriate temperature, and intermediate products and the target product can be stepwise and continuously generated. Thus, formation of other by-products can be avoided, and the method is also beneficial to enhance selectivity and yield of the intermediate products and the target product.

The invention discloses a magnetic hollow micro-nano material, a preparation method and application thereof, and belongs to the technical field of nano materials. According to the magnetic hollow micro-nano material and the preparation method and application thereof, the magnetic hollow micro nano material prepared by a one-step liquid-phase reduction-oxidation method has novel structure and formation mechanism, the contents of Cu and Ni and the composition, feature, and structure of the magnetic hollow micro-nano material can be regulated by changing the reaction temperature, time, stirring speed, gas flow size, and reactant concentration, wherein the diameter of a micro-nano tube is 0.1 to 2 [mu]m, the length is 2 to 12 [mu]m, and the wall thickness is 10 to 140 nm; the diameter of a micro-nano sphere is 0.2 to 5 [mu]m, and the wall thickness is 10 to 180 nm. Because the magnetic hollow micro-nano material is good in dispersibility, good in homogeneity and has good microwave absorption characteristics, the magnetic hollow micro-nano material is widely used in the fields such as microwave absorbing and shield, electrocatalysis, lithium ion batteries and surface enhanced Raman spectroscopy. In addition, the disclosed preparation method is easy to operate, the environment-friendly effect is realized, industrial application potential is good, and the magnetic hollow micro-nano material and the preparation method are suitable for market promotion and application.

The invention discloses equipment for removing carbon dioxide from waste gas, which comprises an algae culture water tank and a purification reaction container, wherein the bottom of the purification reaction container is provided with an air inlet pipe, a water inlet pipe and a sludge discharge pipe; the top of the purification reaction container is provided with an air outlet pipe and a water outlet pipe; a water distributor, a hollow fibrous membrane assembly, a baffle plate and a light source are sequentially arranged in the purification reaction container from inside to outside; the air inlet pipe is communicated with the hollow fibrous membrane assembly, and the air inlet pipe is provided with an air inlet pump, a gas flow meter, an air inlet pressure gauge and an air inlet valve; the air outlet pipe is communicated with the hollow fibrous membrane assembly, and the air outlet pipe is provided with an air outlet pressure gauge and an air outlet valve; the water distributor is communicated with the algae culture water tank through the water inlet pipe, and the water inlet pipe is provided with a water inlet pump, a liquid flow meter and a water inlet valve; the algae culture water tank is communicated with the purification reaction container through the water outlet pipe; the sludge discharge pipe is provided with a sludge discharge pump and a sludge discharge valve; and the light source is connected with a power supply. The equipment has reasonable design, strong applicability, long service life, high carbon dioxide removal efficiency and good industrialized application potential.

The invention discloses a cyanine near-infrared fluorescent probe as well as a preparation method and application thereof, the cyanine near-infrared fluorescent probe disclosed by the invention takes hydrolysis of ester bonds bonded in cyanine dye by esterase as a basic action mechanism, and takes H-type aggregate luminescence of cyanine-amino alcohol as a fluorescence signal reporter group. When esterase is added into a system, ester bonds in a Cy-NE structure can be cut off by the esterase, and Smiles rearrangement reaction is caused by O-ions, so that the color and fluorescence of the solution are changed. The recognition effect of the cyanine near-infrared fluorescent probe on esterase is researched through a colorimetric method, an ultraviolet-visible absorption spectrometry and a fluorescence spectrometry, and the result shows that the near-infrared fluorescent probe can efficiently and selectively recognize esterase in a PBS solution system and has very high response sensitivity on esterase.

The invention discloses a synthesis method of 5-methyl-2-pyrrolidone or derivatives thereof, the synthesis method comprises the following steps: fully mixing levulinic acid (ester) with urea or amideand formic acid, and adding the mixture and a catalyst into a high-pressure reaction kettle for reaction to obtain the target product 5-methyl-2-pyrrolidone or derivatives thereof. After the reactionis completed, the catalyst is filtered and recovered, cleaned and dried before reuse. The method can realize efficient conversion of the levulinic acid (ester) in a solvent-free system, the low-cost and environment-friendly urea or amide is taken as a N source, and the biomass formic acid is taken as a H source, so that the synthesis method has good economy.

The invention discloses a method for preparing an imidazole dialkyl phosphate ionic liquid. At least one layer of perfluorinated cation exchange membrane is arranged in an electrolytic cell, and the perfluorinated cation exchange membrane divides the electrolytic cell into a cathode chamber and an anode chamber. , by shape-stabilizing the anode with DSA, Ti-based PbO 2 Or graphite is the anode, Pt is the cathode, the N-ethylimidazole acetonitrile solution with a concentration of 1-1.5mol / L is added to the cathode chamber, and the concentration of 1.5-3mol / L trialkyl phosphate acetonitrile solution is added to the anode chamber , turn on the silicon rectifier power supply, the electrolysis temperature is 75-80 ℃, the current density is 1.5-7A / dm 2 Under the conditions of electrolysis for 6-9h, the catholyte was taken out, separated and purified to obtain the imidazole dialkyl phosphate ionic liquid. The method of the invention can not only effectively simplify the preparation procedure of the ionic liquid, but also the prepared ionic liquid has good application prospects in catalysis, electrochemistry and the like.