291 results about "Mixed systems" patented technology

The application discloses a kind of AuNPs@ polyimide SERS heating chip preparation and application method, through interface self-assembly technology preparation large-scale AuNPs array film, and transfer to the polyimide film with heating system, form AuNPs@ polyimide heating film as APHC for SERS chip, in situ heat enrichment is carried out to TNT molecule by APHC, and sample can be effectively collected from mixed system by simple operation.This flexible, heatable SERS chip has great significance for efficient, sensitive and in-situ detection of target molecules in complex environmental systems.

The invention relates to the technical field of environmental analytical chemistry, and discloses a thymol phenolphthalein-TBPE double indicator-based cyanide titration detection method and system, and the method comprises the following steps: adjusting a water sample to be detected to an alkaline pH interval to construct a detection matrix; the method comprises the following steps: introducing a double-indicator system composed of thymol phenolphthalein and tetrabromo phenolphthalein ethyl ester according to a specific ratio into a detection matrix, and constructing a spectrum background for masking yellow interference of sulfide by utilizing the blue color development characteristic of thymol phenolphthalein; dropwise adding a silver nitrate standard solution into the mixed system to execute a complex reaction; according to the method, a spectrum background shielding field is constructed, chromaticity response of a system in a specific wave band is monitored in real time, and when a chromaticity mutation signal from green to bluish violet is captured, a titration end point is judged, and the cyanide concentration is calculated. High-precision anti-interference detection on cyanide in a complex high-turbidity matrix is realized, and the sensitivity and accuracy of end point recognition are improved.

The invention discloses a (Fe (OH) 2) ((OH) 0.25 (H2O) 0.5) / W18O49 composite material as well as a preparation method and application thereof, and belongs to the technical field of functional materials. The preparation method comprises the following steps: uniformly mixing and stirring cyclohexanol, acetylacetone and absolute ethyl alcohol, adding tungsten hexachloride, uniformly stirring at room temperature, then adding ferric trichloride, uniformly stirring at room temperature, carrying out hydrothermal reaction, washing and drying to obtain the (Fe (OH) 2) ((OH) 0.25 (H2O) 0.5) / W18O49 composite material. A mixed system of cyclohexanol, acetylacetone and absolute ethyl alcohol is utilized to synergistically solve the problems of advanced hydrolysis and agglomeration of metal ions; the oxygen vacancy of the W18O49 accelerates the conversion of the sodium polysulfide, and the Fe (OH) 2 derivative strengthens the chemical anchoring of the sodium polysulfide, thereby realizing the synergy of the anchoring and rapid conversion of the NaPSs. When being used as a sodium-sulfur battery positive electrode material catalyst, the catalyst shows excellent catalytic performance and rate capability, and still has the capacity of 420 mAh g <-1 > after circulating for 25000 circles under the large current density of 10 A g <-1 >. The strong adsorption characteristic of the hydroxylated iron-based component and the high catalytic activity of W18O49 are utilized to form a synergistic effect, and a new scheme is provided for breaking through the technical bottleneck of an RT Na-S battery.

The application discloses a pinacine alkyl tetrahydrocarbazole fluorescent probe capable of detecting cell lysosome polarity and a preparation method and application thereof. 9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-formaldehyde is used as raw material, and condensation reaction is carried out with 1,3-indan dione to obtain compound 2-(2-(9-(3-(dimethylamino)propyl)-3,3-dimethyl-2,3,4,9-tetrahydro-1H-2,4-bridged methylene carbazole-6-yl)vinyl)-1-indene-1,3(2H)-dione (TC-AP-ID), and the probe can specifically detect the polarity of cell lysosomes. In a mixed system of 1,4-dioxane and water, with the increase of the polarity of the system, the fluorescence color of the probe gradually changes from orange to red, and the fluorescence intensity significantly decreases. The probe has the advantages of simple synthesis, good selectivity, high sensitivity, good biocompatibility, low toxicity and the like, can be applied to targeted detection of the polarity of cell lysosomes, and has a good application prospect.

The invention discloses an interfacial tension prediction method and device based on machine learning and molecular dynamics, and relates to the technical field of molecular dynamics simulation. The method comprises the following steps: constructing a mixed system model comprising CO2, surfactant molecules and crude oil, defining related parameters of a surfactant as a variable set, simulating by adopting molecular dynamics software, acquiring simulation data and interfacial tension data, and preprocessing; and taking the temperature, the pressure and the variable set as input characteristics, taking the interfacial tension as a target variable, and training a LightGBM model to obtain a prediction model. Each particle represents the configuration of one surfactant, the prediction model is used for obtaining the predicted interfacial tension corresponding to each particle, the speed and position of the particles are iteratively updated, and the optimal configuration of the surfactant for minimizing the interfacial tension is obtained. The problem of low oil exploitation efficiency caused by multiple exploitation operations due to poor oil displacement effect caused by incapability of accurately predicting the interfacial tension is solved.

The utility model relates to a mixing system for various high-flow gases and semiconductor process equipment. The system has the advantages that the first gas input module is communicated with the first flow control modules, the second gas input module is communicated with the second flow control modules, the second flow control modules are used for controlling flow at the same time, the flow control precision is improved, and then the concentration precision is improved; the first gas mixing module is respectively communicated with the first flow control module and the second flow control module, and the first gas and the second gas are primarily mixed through the first gas mixing module, so that the concentration uniformity of the whole system is improved; the second gas mixing module is communicated with the first gas mixing module, and the second mixed gas obtained by primary mixing is finely mixed, so that the concentration uniformity of gas mixing is further improved.

The invention belongs to the technical field of lithium salt purification, and discloses a lithium extraction method and a lithium extraction device. The method comprises the following steps: providing a lithium-containing mixed salt; contacting the lithium-containing mixed salt with an organic solvent to form an organic solution rich in lithium salt and a mixed system containing an undissolved sodium salt solid; and carrying out interface evaporation on the mixed system to remove part of the organic solvent and promote the precipitation of the sodium salt, and enriching the lithium salt in the residual liquid phase to realize the separation of the lithium salt and the sodium salt. The method provided by the invention can realize high-efficiency and high-selectivity separation of the lithium salt and the sodium salt.

The invention relates to an O3-phase layered oxide positive electrode material and a preparation method and application thereof, and belongs to the technical field of sodium ion batteries. The preparation method comprises the following steps: S1, dissolving a sodium source, a nickel source, an iron source, a manganese source and a doped metal source in water, and uniformly stirring in a water bath at 40-60 DEG C to obtain a precursor solution; s2, adding a complexing agent into the precursor solution, and heating and stirring to slowly evaporate water until a mixed system becomes thick, so as to obtain sol; s3, under the condition of 200-350 DEG C, the sol is subjected to dehydration, decomposition and self-propagating combustion, and precursor powder is obtained; and S4, performing grinding and heat treatment on the precursor powder to obtain the O3-phase layered oxide positive electrode material. The O3-phase layered oxide positive electrode material, the sodium ion battery positive electrode prepared from the O3-phase layered oxide positive electrode material and the sodium ion battery prepared from the O3-phase layered oxide positive electrode material have the excellent characteristics of long cycle life, high rate capability (quick charge and quick discharge), high capacity and stable voltage output.

Disclosed is an ergonomic device for mixing fluids with controlled metering, provided with at least a mixing system adapted to allow an automatic mixing in predetermined quantities of an additive fluid with a primary fluid. The device includes: at least a first coupling flange and a second coupling flange, provided with a plurality of connection systems, which may be located in the zone, and seals adapted to contain fluid leaks; a substantially cylindrical body of the device adapted to house a mixing system; a mixing mechanism consisting of an axis and a plurality of blades; at least one ergonomic grip; possibly an integrated train of reduction gears which transmits the correct torque and number of revolutions to the pump; at least one gear pump or equivalent device; possibly a gearbox; and a final metering nozzle.

The invention discloses a waste lithium battery recovery co-processing technology, and relates to the technical field of lithium battery recovery, the waste lithium battery recovery co-processing technology comprises the following steps: uniformly mixing and coating a composite processing slurry with electrode fragments, black powder and a current collector mixture obtained by disassembling a waste battery to form a precursor blank, and roasting the precursor blank to obtain the lithium battery. The method comprises the following steps: carrying out solid-liquid separation, impurity removal and surface structure optimization on a solid-liquid mixed system obtained after the reaction, obtaining a leaching solution and a solid intermediate product, and recycling the leaching solution and the solid intermediate product through one or more recycling methods. And carrying out selective recovery and productization processing on the pretreated leachate and solid intermediate products. According to the treatment process, through the links of slurry composite treatment, precursor blank heat treatment, roasting reduction, solid-liquid separation, optimization pretreatment and the like, the metal recovery rate and the product purity are improved, environmental pollution is reduced, and the resource utilization efficiency and the environmental protection property are effectively improved.

The invention relates to the technical field of biochemical substance separation and concentration, and discloses a concentration method of biochemical substances. According to the method, the technical target is realized through seven systematic steps: preparing a biocompatible deep eutectic solvent, constructing a water phase-DES two-phase system, preparing a phase antagonistic biosurfactant mixed system, dynamically regulating and controlling an interface, sequentially migrating and separating biochemical substances, performing multi-stage enrichment and collection, and recycling DES. According to the method, through innovative regulation and control on the interface property and the time dimension, the problem of high-selectivity separation of tiny biochemical substances with polarity difference is effectively solved, the separation purity and the recovery rate are remarkably improved, meanwhile, the biological activity is kept, and a green and sustainable technical solution is provided for efficient concentration of sensitive biochemical substances; the concentration method of the biochemical extract comprises the following steps: taking animal organs or tissues without human beings, and extracting bioactive components in the animal organs or tissues to be used for preparing medicines for treating or preventing cardiovascular and cerebrovascular diseases.

The invention relates to a method for synchronously preparing metastannic acid through ultrasonic enhancement and hydrolysis of low-concentration nitric acid, and belongs to the technical field of metastannic acid preparation. The preparation method comprises the following steps: slowly adding high-purity tin sheets into a dilute nitric acid solution in batches under the stirring condition at the temperature of 35-60 DEG C, and uniformly mixing to obtain a mixed system; and at the temperature of 35-60 DEG C, ultrasonic waves are applied to the mixed system for an ultrasonic enhanced oxidation dissolution-hydrolysis reaction for 30-50 min, so that tin sheets are oxidized and dissolved and are synchronously hydrated to generate metastannic acid precipitates, solid-liquid separation is carried out, solids are sequentially washed and dried, and a high-purity metastannic acid product is obtained. A passivation layer on the surface of the tin sheet is destroyed by utilizing the mechanical effect of ultrasound, and mass transfer is accelerated; the ultrasonic cavitation effect is used for promoting particle refinement and gel network depolymerization, and tin ion hydrolysis is promoted. The method is carried out at normal pressure, low acidity and low temperature, no nitrogen oxide brown smoke is generated in the whole reaction process, the metastannic acid yield is larger than or equal to 95%, and the method has the advantages of being mild in reaction, environmentally friendly, high in efficiency and good in product purity.

The invention relates to the technical field of organic silicon materials. The preparation method comprises the following steps: weighing main body organic silicon resin, a cross-linking agent, a catalyst, an adhesion promoter, a flatting agent, a heat-resistant stabilizer and a mixed solvent according to the weight percentage, adding the main body organic silicon resin and part of the mixed solvent into a reaction kettle, and stirring to obtain a premixed solution; adding a cross-linking agent and an adhesion promoter into the premixed liquid, heating and stirring, adding a catalyst, stirring to form a modified organic silicon prepolymer, adding a flatting agent and a heat-resistant stabilizer into the prepolymer, carrying out ultrasonic dispersion, heating and pre-curing the mixed system in stages, adding the residual mixed solvent, adjusting the solid content, and filtering to obtain a release agent finished product. According to the release agent disclosed by the invention, the modified polysiloxane main body is matched with the compound auxiliary agent, so that the interface bonding force with the PET base film, the heat-resistant stability and the coating uniformity are improved. The preparation process is adaptive to conventional equipment, and segmented pre-curing and ultrasonic dispersion ensure that the product batch is stable.

The application relates to a UV conductive frame adhesive for bonding a flexible bendable substrate and a preparation method thereof, and the preparation raw materials comprise polyurethane acrylate, mixed acrylic monomers, a photoinitiator, a coupling agent and conductive fillers. The preparation method is as follows: mixing the polyurethane acrylate and the photoinitiator according to a proportion to obtain an active mixed system; adding the mixed acrylic monomers and the coupling agent to obtain an organic active system; adding the conductive fillers into the organic active system, mixing and obtaining conductive UV adhesive; adding 30% zirconium beads for grinding and vacuumizing, and the conductive frame adhesive is obtained. The UV conductive frame adhesive of the application uses mixed acrylic monomers as raw materials, has no ion risk, and specific proportion mixed monomers can adjust performance, adapt to flexible screens, and promote dispersion of conductive fillers; ATO as the filler has good dispersion, good light transmission, strong barrier and high cost performance; on the process, the zirconium beads grind ATO to preserve the crystal form, stabilize the conductive network and inhibit ion migration; the room temperature UV single-step curing has the advantages of free radical polymerization, is free of drying, and meanwhile, the polyurethane acrylate as a skeleton increases the durability.

Described are syringe-to-syringe mixing systems, corresponding formulations, and methods of use including treatment methods.

The invention belongs to the technical field of intelligent packaging films, and particularly relates to a casein-copper ion bionic nano-enzyme indicating film for meat freshness monitoring and a preparation method thereof.The method comprises the steps that casein is dissolved in an alkaline solution under the water bath condition, stirring is conducted overnight, and a casein stock solution is prepared; and then, uniformly stirring and mixing the casein stock solution and the copper ion aqueous solution, adjusting the pH value of the mixed system, and promoting the formation of the casein-copper ion bionic nano-enzyme mixture through the coordination effect of copper ions and casein. And then freeze-drying the solid obtained by centrifuging the mixture, and grinding with mortar. And finally, mixing and stirring the Cu-BAN powder, glycerol and a polyvinyl alcohol solution, pouring into a culture dish after reaction, and drying to obtain the Cu-BAN indicating film for meat freshness detection. The method is mild in reaction condition, simple in preparation process, low in cost, high in safety and environmental friendliness and capable of being applied on a large scale.

The application belongs to the field of sodium ion battery materials, and mainly relates to a gel-free high-stability positive electrode slurry as well as a preparation method and application thereof. The positive electrode slurry raw materials comprise: 90-96 parts of sodium iron sulfate, 1-4 parts of a conductive agent, 2-6 parts of a binder, and 0.1-0.5 parts of a combined dispersant; the combined dispersant comprises: a monoester phosphate and a diester phosphate; wherein R in the ester group is one or more of dodecyl, phenyl, octyl, oleyl, polyethylene glycol group, and aminopropyl. The mixed system of the monoester phosphate and the diester phosphate is used as the dispersant, that is, the mixed system has high affinity with iron ions, locks the active metal ions on the particle surface, blocks the side reaction with the solvent, the short chain of the monoester quickly anchors the particle surface, the long chain of the diester extends into the solvent to form steric hindrance, and the double mechanism inhibits agglomeration, thereby improving the dispersibility and stability of the slurry.

The application discloses a method for recycling valuable metals in black powder in waste lithium batteries based on a Na2EDTA-malic acid mixed system, which comprises the following steps: 1) discharging, disassembling, crushing and screening the waste lithium batteries to obtain the black powder; 2) dispersing the black powder in a primary leaching liquid, adjusting the pH value of the primary leaching liquid to 3.0-4.5, and performing leaching in a water bath under stirring conditions, wherein the water bath temperature is controlled to be 50-90 DEG C, and the reaction is performed for 1-4 h, so that the metals in the black powder are dissolved into the liquid phase to form leaching slurry; and 3) performing liquid-solid separation on the leaching slurry obtained in the step 2) to obtain a leaching liquid containing Li, Ni, Co and Mn and leaching residue. The application has small corrosion, is green and environment-friendly, has high leaching efficiency, and is suitable for large-scale application.

This invention relates to the field of free lithium detection, specifically to a method for detecting free lithium and / or residual alkali in lithium supplements. The method includes the following steps: dispersing the lithium supplement in a solvent to obtain a first mixed system; filtering the first mixed system after allowing it to stand to obtain a filtrate; detecting the lithium ion content and transition metal element content in the filtrate, and calculating the free lithium and / or residual alkali content in the lithium supplement; the water content of the solvent is ≤500ppm. The method for detecting free lithium and / or residual alkali in the lithium supplement significantly reduces testing errors by controlling ambient humidity, solvent water content, and subtracting lithium hydroxide generated from the reaction with water and lithium contained in the lithium supplement passing through a microporous filter membrane.

The invention provides a high-strength high-thermal-conductivity reaction-sintered SiC ceramic material and a preparation method thereof.The preparation method comprises the following steps that silicon carbide powder and carbon source powder are mixed and then subjected to ball milling treatment, and mixed powder is obtained; mixing the mixed powder with a binder, a plasticizer and a lubricant, and carrying out high-speed centrifugal stirring and rolling homogenization treatment to obtain a silicon carbide mud blank for injection molding; putting the silicon carbide mud blank for injection molding into a mold, carrying out hot-press injection molding, demolding to obtain a silicon carbide prefabricated body, and carrying out glue removal treatment to obtain a silicon carbide biscuit; and paving silicon particles on the silicon carbide biscuit, carrying out vacuum high-temperature infiltration, and cooling. According to the preparation method, the plastic deformation capacity of the silicon carbide mud blank is optimized by regulating and controlling the component proportion, in the preparation process, the movement rearrangement effect among particles is enhanced by applying reinforced shearing centrifugal stirring and rolling treatment to a mixed system, the density of a biscuit is effectively improved, residual silicon is promoted to be uniformly distributed, and the content and size of the residual silicon are reduced; and the overall performance of the material is improved.

This invention relates to a mixing unit for mixing two or more fluids, particularly fluids containing shear-sensitive biological materials. The mixing unit includes: a first inlet for receiving a feed stream comprising a first fluid and a second fluid; a channel structure in fluid communication with the inlet, the channel structure including: a first branch section for dividing the feed stream into a first primary branch stream and a second primary branch stream; a first primary channel and a second primary channel, each configured to transport one of the corresponding primary branch streams; and a first collection reservoir for re-merging the primary branch streams; wherein the first primary channel and the second primary channel fluidly connect the first branch section to the first collection reservoir.

The present invention relates to a mixing unit for mixing two or more fluids, particularly fluids including biological materials sensitive to shear, wherein the mixing unit comprises: a first inlet receiving an inflow stream comprising a first fluid and a second fluid; and a channel structure fluidly communicating with the inlet, wherein the channel structure comprises: a first branching section dividing the inflow stream into first and second primary branching streams; first and second primary channels configured to pipe one of the individual primary branching streams; and a first collection storage section recombining the primary branching streams; and wherein the first and second primary channels fluidly communicate with the first branching section and the first collection storage section.

The invention provides a preparation method of a common caramel color and the common caramel color, and the preparation method of the common caramel color comprises the following steps: adjusting the pH value of a sugar raw material to 1-2 by using a first acid auxiliary agent, and carrying out a first-stage coking reaction on the sugar raw material to prepare a first-stage material; adjusting the pH value of the first-stage material to 1-2 by using a second acid auxiliary agent, and carrying out a second-stage coking reaction on the first-stage material to prepare a second-stage material; and mixing the second-stage material with water, adjusting the pH value of the mixed system to 4.5-5 by using an alkali auxiliary agent, and carrying out heat preservation treatment at 90-100 DEG C to prepare the common-method caramel color. The application coloring ability of the common-method caramel color vegetable prepared by the preparation method is remarkably improved, so that the application quality of common-method caramel color in food coloring is effectively improved.

The invention discloses a preparation method of a polyanion positive electrode material ferric sodium pyrophosphate (NFPP, chemical formula: Na4Fe3 (PO4) 2P2O7) without a physical sanding process, and relates to the technical field of synthesis of inorganic functional materials. According to the method, dependence of a traditional process on physical sanding is broken through, common industrial raw materials are adopted, an iron source is limited to be a mixed system of water-insoluble iron phosphate and ferrous oxalate (the molar ratio is 1: (0.005-0.5)), and the water-insoluble iron phosphate and the ferrous oxalate form a specific proportion and can generate a synergistic effect in a solution to accelerate reaction and dissolution; the molar ratio of sodium to iron to phosphorus is accurately controlled to be (4-4.04): (2.9-3): 4, the self-adaption of pH and raw material ratio (the pH is stabilized at 4-6) is synergistically realized by utilizing the characteristics of the raw materials, and the particle refining and dispersing effects of sanding are replaced by combining chemical complexing, step-by-step feeding and multi-parameter coordinated regulation. The process is highly compatible with an existing mass production process, rapid adaptation can be achieved without modifying a production line, the investment and energy consumption of sanding equipment are omitted, the energy consumption of a unit product is reduced by about 20%, and the comprehensive production cost is reduced by 10% or above; the product is pure-phase NFPP, the particle size D50 is 2-10 microns, the first specific discharge capacity is greater than or equal to 105mAh / g, the capacity retention rate after 500 cycles is greater than 95%, and the product is suitable for the fields of energy storage batteries, power batteries and the like and has huge industrial potential.

According to embodiments disclosed herein, there is provided a system for loading, mixing and transporting feed. The system includes a scoop assembly and a mixing tub that are movable overhead a series of storage bays. The scoop assembly may retrieve commodities from the storage bays and load measured quantities of the commodities into the mixing tub.

The invention discloses a preparation method of an iron-based polyanionic sodium ion battery positive electrode material, and relates to the technical field of sodium ion batteries. The preparation method comprises the following steps: mixing a sodium source, a carbon source, isopropanol and water, and uniformly stirring to obtain a first mixed system; respectively adding a transition metal source and a phosphorus source into the first mixed system, stirring at normal temperature, and obtaining a precursor through a template method; drying the precursor according to a first preset condition to obtain a dried precursor A; sintering the precursor A for the first time according to a second preset condition to obtain a second mixed system; carrying out ball milling treatment on the second mixed system, and compounding the second mixed system with a carbon material through a ball milling method; and carrying out secondary sintering on a product compounded with the carbon material after ball milling according to a third preset condition to obtain the iron-based polyanionic sodium ion battery positive electrode material. According to the preparation method, the energy consumption is greatly reduced, the exploration of the iron-based mixed phosphate material is accelerated, and the large-scale application of the iron-based positive electrode material is facilitated.

This invention relates to a mixing system for a bioreactor, comprising: - a plurality of supply units (10), each capable of holding a medium for use in the bioreactor; - a mixing unit (30) for forming a homogeneous mixture of the medium; - a first supply mechanism (20) arranged to supply the medium from the supply units (10) to the mixing unit (30); - a control unit (40) operatively connected to the first supply mechanism (20) and the mixing unit (30), the control unit (40) being configured to control the first supply mechanism (20) to supply a predetermined amount of medium from the plurality of supply units (10) to the mixing unit (30), and further configured to control the mixing unit (30) to form a homogeneous mixture of the medium. The invention also relates to a method for mixing a medium used in a bioreactor.

The invention discloses an isolating membrane and a preparation method and application thereof.The preparation method of the isolating membrane comprises the following steps that after a first metal compound, a frame body material and water are mixed and heated, a first mixed system is obtained, metal elements in the first metal compound comprise at least one of gallium, aluminum, indium and silver, and the metal elements in the first metal compound comprise at least one of gallium, aluminum, indium and silver; the frame main body material is at least one of polyvinyl alcohol, sodium alginate, polyoxyethylene, polyacrylic acid and carboxymethyl cellulose; performing freeze drying or spray drying on the first mixed system to obtain a coating material containing metal ions; and mixing the coating material with the adhesive solution to obtain a coating mixture, coating a base material with the coating mixture, and drying to obtain the isolating membrane. According to the isolating membrane, the preparation method and the application thereof, the cycle performance of a lithium ion battery can be effectively improved, and the rate capability of a silicon negative electrode can be improved.

The invention relates to a coenzyme Q10 soft capsule and a preparation method thereof, and belongs to the technical field of health care products. The problems that an existing product wall material is insufficient in compactness and poor in stability, and contents are prone to seeping out are solved. The soft capsule is composed of a content and a wall material according to a specific mass ratio, the content contains coenzyme Q10, soybean oil, vitamin E and phospholipid, and the wall material contains gelatin, glycerin, an aloe-tremella mixed extract and purified water. The aloe-tremella mixed extract is prepared through pretreatment of fresh aloe, preparation of tremella powder, construction of a mixed system, ultrasonic extraction and post-treatment, natural active mucopolysaccharide and tremella polysaccharide contained in the aloe-tremella mixed extract can be synergistically crosslinked, and the aloe-tremella mixed extract, gelatin and glycerin jointly construct a compact wall material structure. The preparation method is simple in process, easy in parameter control and free of special equipment, the product can improve illumination and oxidation stability and reduce the content exudation rate, physicochemical properties and use safety are both considered, and the preparation method is suitable for industrial production.

The invention discloses a kilogram-level preparation method of an organic photoelectric conjugated boron reagent, and belongs to the technical field of organic synthesis and organic photoelectric materials. A kilogram-level preparation method of an organic photoelectric conjugated boron reagent comprises the following steps: uniformly mixing aryl halide and tetrahydrofuran in an inert gas atmosphere to obtain a mixed system 1; placing the mixed system 1 in a liquid nitrogen environment, then dropwise adding a THF solution of n-butyllithium, and stirring to obtain a mixed system 2; and adding a boric acid ester compound into the mixed system 2 for reaction, and finally performing purification treatment to obtain a target product, namely the organic photoelectric conjugated boron reagent. The preparation method of the conjugated boron reagent is efficient, safe and capable of achieving large-scale production, has the advantages of being easy and convenient to operate, low in cost, high in yield, good in purity and the like, is suitable for various benzene series, thiophene, fluorene and other substrates, achieves kilogram-level stable preparation, solves the amplification problem, improves supply chain autonomy, and is suitable for industrial production. The application requirements in the fields of high-end medicines and materials are met.