11068 results about "Fluid phase" patented technology

The invention discloses a gas self-excitation modulation device, an enhanced pollution aeration treatment system and an application method of the enhanced pollution aeration treatment system, through the arrangement of the gas self-excitation modulation device, intermittent modulation airflow matched with an orifice bubble generation process is formed, the instantaneous pulse acting force for upward separation of bubbles is increased, the bubble generation time is shortened, and the aeration bubble size is reduced; and the mass transfer rate of the gas-liquid interface is further improved. According to the invention, the existing laid aerator does not need to be replaced, the aerator material does not need to be modified, and the method is widely applicable to microporous aerators in any form; a water phase does not need to be driven to flow, so that energy consumption is greatly reduced, and adverse disturbance to a target water body is avoided; compared with a gas dissolving method and a jet flow air entraining method, the technology only drives a gas phase to enter a liquid phase, energy is saved, and meanwhile full-amount treatment of target liquid can be achieved. In addition, through sectional arrangement of the oscillation cavity self-excitation unit and the outflow unit, batch application can be carried out.

The invention discloses two brand-new bioactive peptides with antioxidant and alpha-glucosidase inhibitory activity in traditional Chinese medicine hippocampus. The sequences of the novel bioactive peptides provided by the invention are respectively YLPPNW and SVWLGGSLL. According to the method, purity and structure identification is carried out on the new bioactive peptide obtained through separation by adopting liquid phase, primary mass spectrum and secondary mass spectrum, and a material basis is provided for further quality control and drug effect research of the traditional Chinese medicine hippocampus.

The invention discloses bone cement for orthopedic repair and a preparation method thereof, and relates to the technical field of bone cement. The bone cement for orthopedic repair comprises solid-phase powder and a liquid-phase component, the solid-phase powder comprises the following components in parts by weight: 55-65 parts of composite calcium phosphate, 10-15 parts of bioactive glass, 2-3 parts of a developing agent, 1-2 parts of hydroxyapatite, 8-12 parts of a modified toughening agent and 2-3 parts of nano cellulose fibers; the liquid phase component is prepared from the following components in parts by weight: 40 to 50 parts of a sodium alginate solution, 10 to 20 parts of methacrylated gelatin, 0.5 to 1 part of transglutaminase, 30 to 60 parts of a citric acid buffer solution and 1 to 2 parts of an antibacterial agent. The preparation method comprises the following steps: reacting pentaerythritol with 12-oxododecanoic acid to obtain an intermediate 1, and reacting the intermediate 1 with dopamine to prepare the modified toughening agent. The bone cement for orthopedic repair prepared by the invention has good mechanical, self-repairing and antibacterial properties.

The invention relates to the technical field of organic synthesis, and discloses a preparation method of bromo-pyrrole nitrile. The method comprises the following steps: (1) mixing p-chlorophenylglycine, acetonitrile, trifluoroacetic acid and a catalyst, then dropwise adding acyl chloride and carrying out acylation reaction, and after the reaction is completed, purging with an inert gas; (2) under the inert gas, mixing the mixture obtained in the step (1) with inorganic salt, then dropwise adding 2-chloroacrylonitrile, carrying out cyclization reaction, and separating a liquid phase from the obtained mixture; and (3) under the inert gas, mixing the liquid phase obtained in the step (2), hydrobromic acid and hydrogen peroxide, carrying out a bromination reaction, then extracting with acetonitrile to obtain an acetonitrile layer, then removing the acetonitrile, and then carrying out cooling crystallization to obtain the bromo-pyrrolenitrile. According to the technical scheme, the reaction yield is high, different solvents do not need to be frequently replaced, and the solvents can be recycled.

The invention discloses a steam compressor system and a control method. The system comprises a steam compressor, a controller, a heat exchange device, and a steam inlet pressure detection device, a steam exhaust pressure detection device and a steam flow detection device which are respectively connected with the controller, the heat exchange device internally comprises a gas phase area and a liquid phase area, and the gas phase area is communicated with a steam inlet of the steam compressor through a steam inlet pipeline; the steam inlet pressure detection device is arranged on the steam inlet pipeline; a heat exchange coil and a heating device are arranged in the liquid phase area; an inlet of the heat exchange coil is communicated with a steam outlet of the steam compressor through a steam exhaust pipeline; the steam exhaust pressure detection device and the steam flow detection device are arranged on the steam exhaust pipeline; an outlet of the heat exchange coil extends to the outside of the heat exchange device; and the controller is respectively connected with the steam compressor and the heating device. According to the steam compressor system provided by the embodiment of the invention, the steam heat can be recycled, so that the energy consumption of the steam compressor test is reduced, and the test cost is reduced.

The invention relates to a stable silk fibroin liquid condensation body, gel and a preparation method and application thereof, and belongs to the technical field of silk fibroin. The preparation method comprises the following steps: S1, dissolving silk fibroin in a lithium bromide solution, and then adding trypsin for incubation to obtain an enzyme-digested silk fibroin solution; and S2, performing low-temperature programmed centrifugal treatment including an induction stage, a nucleation stage and a liquid-liquid phase separation stage on the enzyme-digested silk fibroin solution, and cleaning to obtain the stable silk fibroin liquid-state aggregate, the method can reduce aggregate liquid drop aggregation and improve the particle size uniformity of the liquid drops.

The invention discloses a production method and a production device of an energy-saving sustainable aviation fuel, and the production method comprises the following steps: S1, adsorbing carbon dioxide in air by using an adsorbent, desorbing through high-temperature carrier gas, and cooling and compressing the desorbed carbon dioxide; s2, carbon dioxide and deionized water are preheated and then electrolyzed, and synthesis gas and oxygen are generated; s3, after the synthesis gas is compressed, performing Fischer-Tropsch reaction to generate a mixture of Fischer-Tropsch oil wax, light hydrocarbon and water, cooling and separating, and returning the Fischer-Tropsch reaction heat to preheat the synthesis gas; s4, pressurizing the Fischer-Tropsch oil wax, mixing the Fischer-Tropsch oil wax with hydrogen, carrying out hydrofining reaction to generate a gas-liquid isomerous oil-gas mixture, cooling and separating, and recycling heat energy of a product to And S5, after gas-liquid separation, preheating a liquid phase, carrying out rectification operation, separating and cooling to obtain a sustainable aviation fuel product. By recovering the heat in each link, the heat is efficiently utilized, and the energy-saving performance of production is improved.

The invention provides a preparation method of an h-BN / PI high-temperature-resistant anticorrosive coating, and relates to the technical field of polymer composites.The preparation method of the h-BN / PI high-temperature-resistant anticorrosive coating comprises the steps that under the protection of inert atmosphere, aromatic diamine containing impurity element five-membered rings and aromatic dianhydride containing ether bonds are taken and subjected to a polymerization reaction in a polar aprotic solvent, and the h-BN / PI high-temperature-resistant anticorrosive coating is obtained. A polyamide acid solution is obtained; performing ultrasonic-assisted liquid phase stripping on the micron-sized hexagonal boron nitride to obtain single-layer hexagonal boron nitride; adding the single-layer hexagonal boron nitride into the polyamide acid solution for multiple times, and uniformly stirring to obtain a hexagonal boron nitride / polyimide composite solution; and coating the hexagonal boron nitride / polyimide composite liquid on a to-be-coated surface, and carrying out gradient heating curing to obtain the h-BN / PI high-temperature-resistant anticorrosive coating. The h-BN / PI high-temperature-resistant anticorrosive coating based on interaction of multiple hydrogen bonds has relatively good high temperature resistance, relatively good resistance mechanical property and excellent corrosion resistance.

The invention provides a solid-liquid combined synthesis method of semeglutide, which belongs to the technical field of semeglutide synthesis, and specifically comprises the following steps: segmenting a main chain of the semeglutide into three shorter polypeptide fragments, namely a fragment 4, a fragment 5 and a fragment 2 at sites 7-14, 15-22 and 23-37, and respectively synthesizing at the same time; performing solid-phase assembly on the fragment 4 and the fragment 5 to form 7-22 peptide fragments, namely a fragment 1, and after the fragment 1 is cut off from the resin, forming NHS ester at a C end; after the fragment 2 is assembled, selectively removing a protecting group A11oc on the Lys26, then connecting with a side chain for fatty acid treatment to form a fragment 3, and cutting off the fragment 3 from the resin; and connecting the NHS ester of the fragment 1 with the fragment 3 in a liquid phase reaction system. The crude semeglutide prepared by the synthetic method is relatively high in yield and purity. The refined semeglutide of which the purity is more than 99.3% and the content of single impurity is less than 0.1% can be obtained at high yield through a conventional purification means.

The utility model relates to the technical field of heat pump rectification, and particularly discloses a heat pump rectification system which comprises a rectification tower; the tower top gas liquefaction system comprises a compressor connected with a gas phase at the top of the rectifying tower, and a reboiler, a throttling device, a condenser and a flow divider which are sequentially connected with the compressor; liquid phase connection at the bottom of the rectifying tower is communicated with the reboiler, the tower bottom reboiling system comprises an auxiliary reboiler and a flash evaporator which are sequentially communicated with the reboiler, and the flash evaporator is communicated to the rectifying tower; and the gas phase at the top of the rectifying tower is heated by the compressor and then enters the reboiler to exchange heat with the liquid phase at the bottom of the rectifying tower, so that the rectifying energy consumption can be reduced, and the energy-saving effect is achieved.

The invention discloses a multi-effect flame-retardant in-situ gel polymer electrolyte and application thereof. The electrolyte is a gel polymer electrolyte with a three-dimensional network structure prepared from a first flame retardant, a second flame retardant, a cross-linking agent, an initiator and a liquid electrolyte in situ, the first flame retardant is an acrylate liquid-phase monomer containing a phosphorus element, and the content of the first flame retardant accounts for 1-4wt% of the total mass of the electrolyte; the second flame retardant is an acrylate liquid-phase monomer containing a fluorine element, and the content of the second flame retardant accounts for 1-4wt% of the total mass of the electrolyte; the content of the cross-linking agent accounts for 1-2wt% of the total mass of the electrolyte; the content of the initiator accounts for 0.05-1wt% of the total mass of the electrolyte; and the balance is liquid electrolyte. According to the invention, the flame retardant is effectively constructed on a three-dimensional network skeleton, so that the flame-retardant effect of the gel polymer electrolyte is enhanced under the synergistic effect of phosphorus and fluorine while the electrochemical performance is not sacrificed.

The utility model provides an emission reduction system for producing tetrahydrofuran from 1, 4-butanediol, and relates to the technical field of chemical production equipment. By arranging the 1, 4-butanediol raffinate separation unit, the 1, 4-butanediol raffinate generated in the tetrahydrofuran production unit can directly enter the film evaporator to be separated, the light component 1, 4-butanediol is rapidly evaporated and flows out from the first gas phase outlet, and the light component 1, 4-butanediol is condensed by the gas phase condenser and then returns to the tetrahydrofuran production unit to serve as a raw material to be recycled. And heavy components of tar in the film evaporator flow out from a first liquid phase outlet at the bottom and are discharged and incinerated. The system can further separate the 1, 4-butanediol raffinate generated in the tetrahydrofuran production unit, and recycle the 1, 4-butanediol in the raffinate, so that the material waste of the 1, 4-butanediol is reduced, and the utilization rate of the 1, 4-butanediol raw material is improved. And meanwhile, the 1, 4-butanediol residual liquid discharge incineration treatment amount is greatly reduced, energy conservation and emission reduction are achieved, and the production cost is reduced.

A process is provided for upgrading low value lipid feedstocks for refinery processing. The process includes (a) treating a lipid feedstock comprising at least one fatty acid with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream, wherein the treating conditions include a temperature in a range of from 400° C. to 700° C.; a pressure in a range of from 0 to 10 MPa; and a liquid hourly space velocity in a range of from 0.1 to 10 h−1; and (b) fractionating the treated stream to obtain a gaseous fraction and a liquid fraction comprising a bio-oil; wherein the bio-oil has a lower content of oxygen and impurities as compared to the lipid feedstock.

The invention relates to the technical field of aluminum ash washing filtrate recycling intelligent control, in particular to an aluminum ash washing filtrate recycling intelligent control device and method, and the device comprises a multi-parameter online detection module, a data processing optimization module, a process parameter execution module and a filtrate circulation module. The multi-parameter online detection module is used for cooperatively detecting the real-time concentration of trace impurity ions such as fluorine, potassium and sodium through an ion selective electrode array and a micro spectrum analyzer; predicting the dissolution trend of impurity ions through an LSTM model and generating a process parameter adjustment instruction; the process parameter execution module regulates and controls the stirring strength, the liquid-solid ratio and the water-ash contact time in a linkage manner; and the filtrate circulating module is used for buffering, homogenizing and proportionally mixing the washed liquid phase to generate a regenerated leaching medium for recycling. According to the method, the detection data and the model decision are dynamically matched through the closed-loop control process, and the impurity element removal efficiency is improved.

The invention discloses tea juice treatment equipment, and relates to the technical field of tea juice treatment. The device comprises a separation net provided with a through hole, a cutter head and a dial wheel plate crushing assembly which are coaxially arranged up and down, an adjustable magnetic coupling driving part composed of an electromagnet and a planetary gear, a bidirectional flow centrifugal separation chamber, a filter element fine filtration cavity and a non-stop screw deslagging mechanism. Flushing wastewater is actively pre-crushed and then tangentially guided to a centrifugal cavity, and solid and liquid are rapidly separated under the synergistic effect of centrifugal force and suction pressure difference; a liquid phase is subjected to center suction, refined filtration, clarification and discharge, and a solid phase settles along the inner wall and is automatically conveyed to the outside for sealed collection. According to the system, the rotating speed is adjusted in a closed-loop mode through online particle monitoring, load self-adaption and low-energy-consumption operation are achieved, filter screen blockage, shutdown cleaning and peculiar smell diffusion are avoided, and the system is suitable for on-site up-to-standard treatment of tea residue sewage in the peak period of a catering store.

The invention relates to a method and a system for measuring fragrance components of essence, and relates to the technical field of essence quality identification, and the method comprises the following steps: S1, constructing a liquid chromatography-gas chromatography-supercritical fluid chromatography multi-dimensional combined analysis system, the system comprises a liquid chromatography system, a gas chromatography system and a supercritical fluid chromatography system which are connected in sequence, and S2, carrying out separation detection on essence samples from different sources or formulas by using the liquid chromatography-gas chromatography-supercritical fluid chromatography multi-dimensional combined analysis system to obtain multi-dimensional chromatographic data containing volatile and non-volatile components. According to the present invention, with the liquid chromatography-gas chromatography-supercritical fluid chromatography multi-dimensional combined analysis system, the separation problem of the aroma components with similar structures can be effectively solved, and compared with the traditional technology, the separation degree is significantly improved, and the volatile and non-volatile component information in the essence can be completely obtained.

The invention belongs to the technical field of chemical production, and particularly relates to an efficient energy-saving refining system for producing cyclohexanone through dehydrogenation, which comprises an alcohol tower, a dehydrogenation heat exchanger, a dehydrogenation reactor, an alcohol tower feeding heat exchanger, a dehydrating tower, a light tower I, a light tower II, a ketone tower and an alcohol recovery tower which are connected in sequence, a middle feeding port of the alcohol tower is communicated with a tube pass discharging port of the alcohol tower feeding heat exchanger, a top discharging port of the alcohol tower is communicated with a tube pass feeding port of the dehydrogenation heat exchanger, a bottom discharging port of the alcohol tower is communicated with a middle feeding port of the alcohol recovery tower, and an alcohol ketone drying tower is additionally arranged between the alcohol tower feeding heat exchanger and the dehydration tower. A feed port of the alcohol ketone drying tower is communicated with a shell pass discharge port of the alcohol tower feed heat exchanger, and a liquid phase discharge port of the alcohol ketone drying tower is communicated with an upper feed port of the dehydrating tower. The alcohol tower adopts a process that raw materials directly enter the tower top, tower top reflux is cancelled, steam consumption is reduced, and the purpose of saving energy is achieved.

The invention discloses a method for producing ethanol through electrocatalytic reduction of carbon dioxide and membrane coupling, and belongs to the technical field of electrochemical reduction and membrane separation coupling. After the alcohol-permeable membrane is arranged in the electrolytic tank, the selectivity of the alcohol-permeable membrane is utilized to separate the liquid-phase product ethanol and remove the product, so that the chemical equilibrium can be promoted to proceed forwards, the electrochemical reaction is promoted, the selectivity and the overall conversion efficiency of the reaction are improved, and the high-purity ethanol can be obtained; the device for preparing ethanol through electroreduction is scientific and reasonable in structure, safe and convenient to use, low in cost and short in treatment flow, and the selectivity of ethanol in the reaction process and the collection process is improved.

The invention relates to the technical field of high performance liquid chromatography detection, in particular to a liquid chromatography determination method and equipment for the content of m-tert-butylphenol, and the method comprises the following steps: determining a to-be-determined mixed solution of the prepared m-tert-butylphenol by using high performance liquid chromatography to obtain chromatographic data; the method comprises the following steps: preparing chromatographic data of standard control group solution samples of m-tert-butylphenol under different concentrations under two preset different wavelengths, and obtaining a nonlinear fitting relationship between the concentrations of m-tert-butylphenol and chromatographic peak areas; analyzing the chromatographic data deviation of the to-be-measured mixed solution, and obtaining the chromatographic peak area of the to-be-measured mixed solution after correction of the intermediate tert-butylphenol; and acquiring the concentration of the intermediate tert-butylphenol in the mixed solution to be measured corresponding to the corrected chromatographic peak area by utilizing a nonlinear fitting relationship. The invention aims to improve the measurement accuracy of the prepared m-tert-butylphenol.

The invention discloses a silicon dioxide reinforced high-hydrophobicity polyvinylidene fluoride membrane as well as a preparation method and application thereof, SiO2 nanoparticles are taken as a mechanical reinforcing agent and a structure regulator and are directly added into a membrane casting solution system, and solid-liquid phase separation is preliminarily induced on the surface of a primary membrane in combination with non-solvent spraying ethanol, so that the high-hydrophobicity PVDF membrane is successfully prepared. A unique multi-stage micro-nano structure consisting of mutually connected spherocrystals is constructed on the surface of the membrane, the hydrophobicity, aperture, porosity and mechanical property of the membrane are effectively improved, and the membrane shows excellent and stable separation performance in performance tests of seawater desalination and erythritol concentration, and has good application prospects in seawater desalination and erythritol concentration. The method shows huge application potential in the fields of wastewater treatment, food production and the like.

The invention provides a hydrolysis method of a waste nylon 6 fishing net. The hydrolysis method comprises the following steps: step 1, screening the waste nylon 6 fishing net, cleaning, removing impurities, disinfecting and crushing; step 2, pretreating diatomite; step 3, adding pretreated diatomite, solid acid and deionized water into a reaction kettle, stirring at 50 DEG C for 5 hours, and removing moisture to obtain a solid acid catalyst; 4, adding the solid acid catalyst, the cleaned waste nylon 6 fishing net and deionized water into a reaction kettle, controlling the temperature and time for reaction, and filtering while hot to obtain a liquid-phase product; 5, neutralizing, decolorizing and extracting the liquid-phase product to obtain a caprolactam monomer; and 6, carrying out polymerization reaction on the obtained caprolactam monomer to generate regenerated polyamide for chinlon spinning. According to the method provided by the invention, the solid acid catalyst is easily separated from reactants, the catalytic efficiency is high, the corrosion to equipment can be reduced, and the method is more environment-friendly.

The invention relates to the technical field of bubble generation, and provides a micro-nano bubble stable generation method and a micro-nano bubble stable generation device.The method comprises the steps that a liquid-phase working medium flows through a Venturi tube, so that negative pressure is formed in the throat portion of the Venturi tube, a gas-phase working medium is sucked in, preliminary mixing is conducted, and a gas-liquid mixture is obtained; the gas-liquid mixture is tangentially guided into a rotary-cut type excitation cavity to drive a free rotating impeller in the rotary-cut type excitation cavity to rotate, and fine shearing is conducted on bubbles; the gas-liquid mixture obtained after fine shearing is guided into a diffusion and flow stabilization cavity for speed reduction and flow stabilization; the gas-liquid mixture subjected to flow stabilization flows through a nanocrystallization foam stabilizing unit, a plurality of parallel micro-channels are arranged in the nanocrystallization foam stabilizing unit, and the surface of the inner wall of each micro-channel is covered with a layer of nanofiber net-shaped structure; and carrying out final nanocrystallization and interface stabilization treatment on the gas-liquid mixture through a nanofiber net structure, and outputting stable micro-nano bubble liquid. The problems of poor stability, short service life and high energy consumption of the traditional technology are solved.

The invention relates to the technical field of fermentation of edible and medicinal fungi, and discloses a phellinus igniarius fermentation method capable of producing high-yield Hispidin and an application of the phellinus igniarius fermentation method. The phellinus igniarius fermentation method comprises the following steps: inoculating a phellinus igniarius strain into a culture medium containing a copper ion compound, and fermenting. The phellinus igniarius mycelium obtained by adopting the fermentation method is rich in Hispidin, and can be widely used for preparing related medicines and health foods for protecting liver, resisting tumors, resisting viruses, resisting oxidation, reducing uric acid and the like. In addition, the invention also discloses a high performance liquid chromatography detection method for analyzing the content of Hispidin, by adopting the method, the content of Hispidin and precursor substances (such as protocatechuic acid, protocatechualdehyde, caffeic acid, osmundone and the like) in the phellinus igniarius leavening and derivative products thereof as well as phellinus igniarius mycelia can be effectively analyzed, and the accuracy of Hispidin detection is favorably improved.

The invention provides novel liquid-liquid phase separation microparticles (LLPS MPs) as well as a preparation method and application thereof. The liquid-liquid separation (LLPS) system is micron liquid drops formed by driving under the electrostatic attraction effect of positively charged polyelectrolyte and negatively charged inorganic salt or organic salt in an aqueous solution. Polyoxometallate (POM) is used to stabilize it by electrostatic attraction and precipitate LLPS MPs having a ridge structure. According to the preparation method, [{(B-alpha-PW9O34) Co3 (OH) (H2O) 2 (O3PC (O) (C3H6NH3) PO3)} 2Co] 14-(Co7-POM) with photocatalytic water oxidation activity is selected to deposit micron particles, so that the micron particles have enhanced photocatalytic water oxidation activity, and meanwhile, the micron particles can be recycled through simple and feasible solid-liquid separation.

The invention discloses a scorpion anti-inflammatory polypeptide as well as a screening method and application thereof, and belongs to the technical field of traditional Chinese medicinal material polypeptides. The scorpion anti-inflammatory polypeptide is one of G4, G5 and G17. The method comprises the following steps: detecting a scorpion buthus martensii polypeptide extract through nanoElute 2 nanoliter liquid phase separation, timsTOFPro2 mass spectrometry and BPS Novor search analysis, screening a scorpion buthus martensii polypeptide, and further synthesizing the screened candidate polypeptide by adopting a solid-phase synthesis method; the effect of the synthesized candidate polypeptide on inhibiting microglial cell inflammation is evaluated through a qPCR method, and then the scorpion buthus martensii anti-inflammatory polypeptide is screened out. The Buthus martensii Karsch anti-inflammatory polypeptides G4, G5 and G17 screened by the method, especially G5, can significantly inhibit microglial cell inflammation and present concentration dependence, a theoretical basis is provided for medicinal development of Buthus martensii Karsch polypeptides, and a potential anti-neuroinflammation mechanism of the Buthus martensii Karsch polypeptides is disclosed.

The invention relates to a method and a system for synthesizing N-methylaniline and co-producing N, N-dimethylaniline by a gas phase method, and belongs to the technical field of chemical engineering. The system comprises a raw material gasification unit, a reaction unit, a separation and rectification unit and a hydrogen recovery unit which are connected through pipelines. The method comprises the following steps of: firstly, mainly synthesizing N-methylaniline from raw materials aniline and part of methanol in a first-methylaniline reactor, then partially or completely feeding first-methylaniline reaction gas into a second-methylaniline reactor, adding methanol steam, and further reacting to generate N, N-dimethylaniline. And after the product gas is subjected to heat exchange energy recovery, a liquid phase and a gas phase respectively enter the separation and rectification unit and the hydrogen recovery unit. The purification of N-methylaniline and N, N-dimethylaniline and the recovery of byproduct hydrogen are realized. The yield of N, N-dimethylaniline (in terms of aniline) can be adjusted in a range of 5-30% by adjusting reaction conditions and a feeding ratio.

The invention provides a solid electrolyte modified positive electrode material and a preparation method and application thereof, and the preparation method comprises the following steps: a) dissolving an inorganic oxide electrolyte intermediate product in a mixed solution of water and an organic matter containing functional groups, adjusting the pH value to 2-9, adding lithium fluoride, stirring, and then evaporating and drying to obtain a first gel product; b) performing puffing treatment on the first-time gel product obtained in the step a), adding the first-time gel product and a ternary positive electrode material into a solvent, performing ultrasonic dispersion, stirring, and performing evaporation drying to obtain a second-time gel product; and c) sintering the second gel product obtained in the step b) in an oxygen-free environment to obtain the solid electrolyte modified positive electrode material. According to the invention, through cooperation of liquid-phase coating and high-temperature solid-phase diffusion treatment, a sintered stone structure with high ionic conductivity and high stability is introduced to the surface of the ternary material, and the problem of cyclic cracking of the ternary positive electrode material can be effectively solved.

The invention provides a content detection method for a salvia miltiorrhiza medicinal material, a salvia miltiorrhiza clear paste and a musk heart-dredging dropping pill. According to the method, a high performance liquid chromatography method is adopted, octadecylsilane chemically bonded silica is used as a chromatographic column filler, acetonitrile is used as a mobile phase A, 0.02%-0.1% trifluoroacetic acid is used as a mobile phase B, gradient elution is carried out, and rosmarinic acid and salvianolic acid B in the salvia miltiorrhiza medicinal material are synchronously and quantitatively detected. And synchronously and quantitatively detecting tanshinol, protocatechuic aldehyde, caffeic acid, salvianolic acid E, rosmarinic acid, alkannic acid and salvianolic acid B in the salvia miltiorrhiza clear paste, and synchronously and quantitatively detecting tanshinol, protocatechuic aldehyde, caffeic acid, salvianolic acid E, rosmarinic acid, alkannic acid, salvianolic acid B, arenobufagin and bufalin in the musk Tongxin dropping pill. The method is used for monitoring the content of specific components, can also judge the transfer rate in the medicine production process, and facilitates traceability in the production link. In addition, the method is relatively low in equipment requirement and suitable for industrial popularization.

Provided are a lid, a container with the lid, and a combination of the lid and the container, which can prevent contents from leaking from the container with the lid while using a paper-based raw material, and can improve the recyclability. The lid is configured so as to be attachable to a container having an opening and an edge forming the opening, and has a top surface portion that covers the opening when attached to the container. The top surface portion has a paper-based substrate comprising a paper-based material, a penetration portion penetrating the paper-based substrate, a gas-liquid separation material capable of separating a gas in a gas phase and at least a portion of a liquid in the liquid phase from a mixed fluid having the gas phase and the liquid phase, and a thermoplastic coating agent. The gas-liquid separation material has a paper-based air-permeable sheet that includes long fibers and has air permeability, a liquid-repellent agent that imparts liquid repellency to the paper-based air-permeable sheet is disposed on at least one surface of the paper-based air-permeable sheet, and the gas-liquid separation material is disposed so as to cover at least a portion of the penetration portion in a plan view of the paper-based base material, and the gas-liquid separation material is disposed so as to cover at least a portion of the penetration portion in a plan view of the paper-based base material. And the coating agent is used for bonding the gas-liquid separation material and the paper base material.

The invention relates to a method for efficiently and accurately measuring the content of a urease inhibitor in a stabilized fertilizer. The method comprises the following steps: preparing a sample solution; carrying out digestion treatment on the sample solution; carrying out chromogenic reaction; measuring the absorbance of the blue complex by using a 3cm cuvette under the wavelength of 710 nanometers by using a spectrophotometer; and calculating the content of the total effective components of the urease inhibitor in the sample according to a relational expression between the phosphorus content and the absorbance. According to the invention, accurate measurement of the content of the target component can be realized through chemical digestion, chromogenic reaction and photometric analysis, the measurement method is simple and reliable, the measurement method shows significant advantages in the aspect of urease inhibitor content measurement, and powerful technical support can be provided for quality control and performance evaluation of related products. Compared with the existing liquid chromatography, the method has the advantages that the cost advantage is obvious, the acquisition cost and the maintenance cost of a liquid chromatograph and matched equipment thereof can be saved, accurate determination can be carried out only by using a conventional detection appliance, and the method has good universality.