112results about How to "Avoid decomposition" patented technology

The utility model discloses super-strong steel chemical degreasing powder drying equipment, and relates to the technical field of drying equipment. The device comprises a drying assembly, and an inner cavity of the drying assembly is fixedly connected with a mixing assembly. The heating blocks embedded in the inner wall of the drying box are distributed in an annular array mode, oil removing powder in the drying box can be heated in a full-surrounding mode, compared with traditional bottom or single-side heating, the uniformity of a temperature field in the box is remarkably improved, and the problem of component decomposition or low-temperature caking caused by local overheating is solved; when the planetary gear stirring piece drives the auxiliary stirring rod to revolve around the first transmission shaft, rotation is achieved through meshing of the driven gear and the driving gear ring, and a three-dimensional stirring track of revolution and rotation is formed; the up-down reciprocating piece pushes the main stirring rod to do periodic up-down motion through the cam, so that materials are subjected to transverse shearing mixing and longitudinal stirring in the drying process, the material accumulation dead angle is effectively broken, and the heat exchange efficiency is improved.

The present application relates to the technical fields of medical health food, and discloses a preparation device for naringin compound loaded by octenyl succinic acid modified porous starch ester, which comprises a preparation liquid ultrasonic mixing cylinder assembly, a mixing top cover assembly is arranged on the top of the preparation liquid ultrasonic mixing cylinder assembly, and a mixed liquid shaking and stirring assembly is arranged on the mixing top cover assembly; a rocker arm base assembly is rotatably arranged at the bottom of the preparation liquid ultrasonic mixing cylinder assembly; a preparation liquid mixing cylinder assembly is fixedly arranged on both sides of the top of the preparation liquid ultrasonic mixing cylinder assembly; the preparation liquid ultrasonic mixing cylinder assembly comprises a preparation liquid ultrasonic mixing cylinder, a plurality of mixing cylinder bottom arm tables are fixedly arranged on the preparation liquid ultrasonic mixing cylinder through reinforcing rib plates, and a bottom arm table main shaft rod is fixedly arranged on the mixing cylinder bottom arm table; an aeration pipe is fixedly arranged at the bottom of the preparation liquid ultrasonic mixing cylinder, and a liquid pump is fixedly arranged outside the bottom of the preparation liquid ultrasonic mixing cylinder. The present application has the characteristics of sufficient mixing.

Provided is a rechargeable lithium battery including a positive electrode including a positive active material layer; a negative electrode including a negative active material layer; and an electrolyte solution including a nonaqueous organic solvent, a lithium salt, and an additive, wherein the positive active material layer includes a positive active material and carbon nanotube, the carbon nanotube is included in an amount of greater than 0.1 wt% and less than 3.0 wt% based on the total weight of the positive active material layer, and the additive includes a compound represented by Chemical Formula 1. Details of Chemical Formula 1 are as described in the specification.

The invention belongs to an amide intermediate treatment device and method for hydrazine hydrate production. Comprising a concentration tank, the concentration tank is provided with a water-phase reaction liquid inlet pipeline and a catalyst inlet, the catalyst inlet is connected with a quartz sand catalyst preparation unit, an outlet of the concentration tank is connected with a concentrated material inlet of an intermediate recovery kettle, and the intermediate recovery kettle is further connected with an ammonia feeding pipeline. An ammoniation liquid outlet of the intermediate recovery kettle is connected with a separation and recovery unit, and a liquid phase outlet of the separation and recovery unit is connected with a hydrazine compound synthesis section; a steam discharge pipeline is arranged at the top of the concentration tank; the method has the advantages that moisture in the water-phase reaction liquid can be removed, ammonium formate is converted into formamide and recycled, meanwhile, metal ions are prevented from being contained in ammoniation liquid, and further, the treatment cost is reduced and continuous treatment is achieved on the basis of energy conservation and consumption reduction.

The invention belongs to the technical field of dibromohydantoin production, and particularly provides a dibromohydantoin synthesis method which comprises the following steps: S1, preparing a raw material aqueous solution, namely respectively mixing dimethyl hydantoin, sodium bromide and liquid caustic soda NaOH with deionized water to form a dimethyl hydantoin aqueous solution, a sodium bromide aqueous solution and a liquid caustic soda NaOH aqueous solution; s2, premixing the raw material aqueous solution, namely mixing the aqueous solution of dimethyl hydantoin, sodium bromide and caustic soda liquid NaOH prepared in S1 to obtain a premix; s3, electrochemical in-situ bromination reaction: introducing the premix into a micro-channel reactor provided with an electrolysis electrode, and applying current to the premix to obtain a dibromohydantoin initial solution; and S4, crystallizing, separating and drying the product, carrying out cooling crystallization through a three-stage stepped cooling method to obtain a dibromohydantoin crystal, carrying out centrifugal separation to obtain a dibromohydantoin wet product, and then drying to obtain a dibromohydantoin finished product. The method can improve the generation stability and the product quality of the dibromohydantoin.

This invention provides a method for preparing a surface-modified aluminum foil anode. By using a lithium-containing solution with strong reducing power to carry out an oxidation-reduction reaction with the alumina film on the surface of the aluminum foil anode at high temperature, the Al2O3 in the alumina film is rapidly lithiated into α-LiAlO2, which has a dense structure, can withstand the volume expansion of aluminum, and can freely transport lithium ions. This achieves uniform alloying / dealloying of the aluminum foil anode, causes the volume expansion to occur in a direction perpendicular to the aluminum foil anode, and isolates the electrolyte from the aluminum foil anode, preventing electrolyte decomposition. This effectively suppresses the structural failure of the aluminum foil anode and the capacity decay of the battery.

The application belongs to the technical field of two-dimensional materials, and relates to a method for preparing two-dimensional MXene materials through high-energy electric shock fluorinated salt etching in seconds, which comprises the following steps: 1) after grinding and mixing of a parent phase MAX powder and a fluorinated salt, the mixture is loaded into a quartz tube of a high-energy electric shock device, graphite electrodes are inserted into two ends of the quartz tube, and the material is compacted to be in close contact with the electrodes; 2) after completion of capacitor charging of the high-energy electric shock device, a discharge button is opened, high-energy electric shock is performed, the reaction is completed after flash phenomenon occurs, fluorinated salt is supplemented, and electric shock is repeated for 2-3 times; 3) the product after electric shock is ground and washed with acid, and after washing with deionized water until neutral, standing or centrifugal layering is performed, and the MXene two-dimensional material is obtained from the upper layer. Through high-energy electric shock, the reaction is completed in an instant, the comprehensive energy consumption is lower, and the etching efficiency is faster, and due to fast reaction time, high-temperature oxidation of the MXene can be effectively inhibited, and the application prospect is better.

The application relates to the secondary battery technical field, and discloses a manganese-based positive pole piece, a preparation method thereof, a secondary battery and an electric equipment. The positive pole piece comprises, in sequence from the thickness direction of the pole piece, a current collector, a manganese-based positive active material layer, an oxide layer and a phosphorus-containing oxygen acid covalent modification layer; the oxide layer and the phosphorus-containing oxygen acid covalent modification layer are connected through P-O bonds. The application proposes that the application constructs a stable multilayer interface modification structure by covalently combining the oxide layer and the phosphorus-containing oxygen acid covalent modification layer through sequentially stacking a multilayer structure, can cover the entire pole piece macroscopic interface, has strong binding force, can strengthen the adsorption capacity of manganese ions, block the interface side reaction chain, avoids the problems that the traditional particle-level coating is easy to break and fail, the binding force of the conventional protective film is weak and the distribution is uneven, and therefore can effectively inhibit the manganese ion elution and electrolyte decomposition, has the advantages of improving the battery capacity retention rate, the cycle stability and the thermal safety.

This invention provides a method for recovering and utilizing distillation residue after solvent removal from homohydric anhydride, relating to the field of fine chemical technology. The method includes anhydride treatment, vaporization and sublimation, dissolution and recrystallization, distillation, and water washing. In this invention, the distillation residue is anhydride-treated under high temperature and negative pressure, followed by vaporization and sublimation under vacuum to separate mechanical impurities and high-boiling substances. Then, through dissolution and recrystallization, the difference in solubility between homohydric anhydride and metahydric anhydride in polar solvents is utilized to preferentially crystallize out the homohydric anhydride. The mother liquor is distilled to remove the solvent, and then colored impurities are removed by hot water washing and activated carbon adsorption. Finally, it is cooled and crystallized to obtain trimellitic acid. The homohydric anhydride obtained by this invention has a purity ≥95% and a yield of 84-89%, and the trimellitic acid has a purity ≥97% and a yield of 81-86%. This method achieves effective recovery of high-value-added components from distillation residue, demonstrating significant economic and environmental benefits and promising application prospects.

This invention belongs to the field of battery materials technology, and discloses a single-crystal lithium nickel manganese oxide material, its preparation method, and a lithium-ion battery. The single-crystal lithium nickel manganese oxide material contains Li... x Ni 2‑x The percentage content of O2 is C≤1.6%, C=(I LixNi2‑xO2 / (I LixNi2‑xO2 +I LiNi0.5Mn1.5O4 ))×100%, I LixNi2‑xO2 For Li in the XRD refinement results x Ni 2‑x The diffraction peak intensity corresponding to O2, I LixNi2‑xO2 +I LiNi0.5Mn1.5O4 To add LiNi to the XRD refinement results 0.5 Mn 1.5 O4 and Li x Ni 2‑x The diffraction peak intensity of the O2 two-phase model indicates a grain size of 5–11 μm. The aforementioned single-crystal lithium nickel manganese oxide material was prepared via a lithium-deficient high-temperature sintering and lithium-replenished low-temperature sintering process. Li x Ni 2‑x Large-particle monocrystalline lithium nickel manganese oxide materials with low O2 content avoid electrolyte decomposition under high voltage, thus preventing the generation of HF and Li. x Ni 2‑x The O2 reaction can effectively improve the cycle stability of the battery. Simultaneously, the high compaction density of monocrystalline lithium nickel manganese oxide material can enhance the battery's energy density, thermal stability, mechanical properties, and durability. The method for preparing monocrystalline lithium nickel manganese oxide material in this invention is relatively simple, reliable, and effective, and can utilize existing production lines.

The present application belongs to the field of drilling technology, and discloses a drilling and mining device, which comprises a shell, a connecting piece, a water inlet device, a drill bit and a sliding piece. The sliding shell is slidingly arranged in the waterproof shell. The connecting piece is arranged on the upper end opening of the sliding shell and is provided with a first liquid inlet channel. The water inlet device is located in the sliding shell and is provided with a second liquid inlet channel. The drill bit is arranged at the lower end of the sliding shell and slidingly penetrates the lower end opening of the waterproof shell. The drill bit is provided with a liquid outlet channel, and the drill bit, the water inlet device and the inner wall of the sliding shell surround a containing chamber. The sliding piece is slidingly arranged in the containing chamber. The cooling liquid flows through the first liquid inlet channel and the second liquid inlet channel into the containing chamber and is then discharged through the liquid outlet channel to forcibly cool the drill bit and timely take away the heat generated by the drill bit, so as to inhibit the decomposition of natural gas hydrate and ensure the safety and efficiency of the mining operation. The device can reduce the amount of inhibitor, reduce the dependence on high-concentration chemical inhibitors, and is environmentally friendly and economical.

The utility model discloses a biomass thermal cracking three-phase product high-efficiency separation device which comprises a cracking assembly which comprises a sliding rail type tubular furnace, and biomass raw materials are heated to a set cracking temperature through the sliding rail type tubular furnace and generate mixed products of gas, liquid and solid particles; the cooling assembly comprises a snakelike condenser and a liquid phase collecting bottle, and liquid phase components in the mixed product are separated through the snakelike condenser and stored in the liquid phase collecting bottle; the detection assembly comprises an on-line infrared gas analyzer, and gas components in the mixed product are detected through the on-line infrared gas analyzer; the purification assembly comprises an ethanol solution bottle and an aqueous solution bottle, alcohol-soluble gas components in the gas-phase components are absorbed through an ethanol solution in the ethanol solution bottle, and water-soluble gas components in the gas-phase components are absorbed through an aqueous solution in the aqueous solution bottle. According to the utility model, efficient separation of three-phase products of biomass thermal cracking is realized.

The application discloses a kind of multistage filtering devices for strontium chloride purification, comprising: base, left side fixed with support on it, right side circumferentially arranged with support seat;Filter cartridge, installed on the support;Ring seat, configured as two groups, respectively fixedly sleeved in the middle and upper part of the support seat;Purification cylinder, fixed on the ring seat, and its inside is equipped with purification mechanism;Cover, set at the top end position of the purification cylinder, and connected with the purification mechanism;And connecting pipe, communicated between the filter cartridge and the purification cylinder, and the interface between the purification cylinder is telescopic structure.

The purpose of the present invention is to provide a technique whereby the decomposition of a surfactant can be greatly suppressed without adding a stabilizer. The problem is solved by a method for suppressing decomposition of a surfactant in a cleaning solution for aluminum or an aluminum alloy, the cleaning solution containing an inorganic acid, iron ions, and 0.1-10 g / L of the surfactant, the cleaning solution having a pH of 2 or less. The method includes a step of adding one or more oxoacid salts selected from the group consisting of monooxygenated acid salts and diooxygenated acid salts to the cleaning solution.

The application discloses a kind of fusion implicit Retinex constraint and light texture collaborative interaction light low light enhancement method. The method first constructs double-flow architecture, utilizes the global flow of Transformer to capture long-range light distribution prior, and is extracted through multi-scale structured texture recovery module in parallel Multi-band local feature. Subsequently, design light guide feature adaptive modulation module, map global prior to spatially adaptive scaling and offset factor, perform pixel-level gain adjustment on local feature, realize the accurate guidance of light information to texture recovery. Finally, in the training stage, introduce implicit Retinex loss function containing structure perception smoothing and color consistency constraint, internalize physical law to network weight, generate enhanced image through simple linear transformation. The application effectively suppresses color deviation and artifact without increasing inference overhead, significantly improves the robustness of lightweight network under complex lighting, and is suitable for mobile real-time visual tasks.

The application provides a double-coating lithium iron phosphate positive electrode sheet, a preparation method and application thereof. The preparation method comprises the following steps: mixing modified large-particle lithium iron phosphate, modified small-particle lithium iron phosphate, a conductive agent, a binder and a solvent to obtain a first slurry and a second slurry; adopting double-layer slot extrusion coating to coat the first slurry on the surface of a current collector and coat the second slurry on the surface of the first slurry; and drying and rolling to obtain the double-coating lithium iron phosphate positive electrode sheet; the modified large-particle lithium iron phosphate is doped with Ti and Nb, and the modified small-particle lithium iron phosphate is doped with Mg and Al. The application adopts a multi-element doped positive electrode material combined with a double-layer coating preparation method to avoid the shortcomings of LFP materials, improve the rate performance, high-temperature performance and cycle performance of LFP, and has the advantages of simple preparation process and easy industrial production. The prepared positive electrode material and the secondary battery using the same have excellent comprehensive performance, and have a wide application prospect in the field of power batteries.

This invention relates to the field of organic compound preparation technology, specifically a method for preparing 11-triglycerides of carbonate via low-temperature acylation. This method uses glycerol and undecanoyl chloride as raw materials, employing a synergistic system of a "composite acid-binding agent + Lewis acid catalyst," and combines in-situ dehydration technology and a stepwise heating strategy in a dual-solvent environment to achieve efficient synthesis. The specific steps include: under nitrogen protection, dissolving glycerol in a dichloromethane-toluene dual solvent, adding a composite acid-binding agent of pyridine and N,N-diisopropylethylamine, anhydrous zinc chloride catalyst, and 4A molecular sieve for in-situ dehydration; dropwise adding undecanoyl chloride at a low temperature of 5-10°C, followed by sequential heating to 30°C for 2-3 hours and then reacting at 50°C for 12-16 hours; and post-processing using a combined process of filtration-multi-stage extraction-membrane separation-column chromatography. This invention provides mild reaction conditions, effectively suppresses side reactions, produces high-purity products, increases molar yield, and reduces solvent toxicity and purification costs.

This utility model discloses a pretreatment device suitable for pesticide detection, comprising a mixing tank, a crushing tank fixedly connected above the mixing tank, a water pump fixedly connected above the mixing tank, a water outlet pipe fixedly connected to the end of the water pump, a spray inlet pipe fixedly connected to the end of the water outlet pipe, multiple spray nozzles fixedly connected below the spray inlet pipe, a first motor fixedly connected above the mixing tank, a first stirring rod rotatably connected below the first motor, stirring blades fixedly connected around the first stirring rod, and a silicone scraper fixedly connected to the outside of the first stirring rod. This structure allows for immediate and efficient cleaning of the tank interior. This design significantly reduces the frequency of manual cleaning required by traditional equipment, avoiding cross-interference caused by residual contamination during multiple sample processing steps, and ensuring the stability and accuracy of the test results.

The utility model relates to a divisional application of which the application number is 202420109196.7. The utility model relates to the field of photovoltaic technology, in particular to a conductive adhesive tape and a perovskite solar cell. The conductive adhesive tape comprises a base material layer, a grid conductive layer and a conductive adhesive filling layer, the grid conductive layer and the conductive adhesive filling layer are located on the surface of one side of the base material layer, the grid conductive layer is of a grid-shaped structure and arranged on the surface of the base material layer, and meshes of the grid-shaped structure are filled with the conductive adhesive filling layer. The conductive adhesive tape disclosed by the utility model can be widely applied to the field of building integrated photovoltaics; secondly, the conductive adhesive tape is applied to the perovskite solar cell, and the surface of one side of the substrate layer is provided with a first area, a second area and a third area; and the conductive adhesive tape is arranged on the surface of one side, far away from the substrate layer, of the transparent conductive layer in the first region and the second region, and the conductive adhesive layer and the cell layer are arranged at an interval, so that the electrical property and reliability of the perovskite solar cell are high.

This invention discloses a solid-state electrolyte and a solid-state battery for the field of backup power and energy storage, belonging to the field of battery manufacturing technology. The solid-state electrolyte for backup power and energy storage comprises the following components by weight: 30-40 parts polymer matrix, 18-30 parts lithium salt, 0.8-1.3 parts lithium salt promoter, 1-4 parts binder, 18-26 parts tetrahydrofuran, and 0.8-2.3 parts conductive additive. The solid-state electrolyte prepared using the above substances exhibits excellent ionic conductivity, electrochemical stability, and safety, and its parameters are suitable for backup power and energy storage applications.

The application relates to a fluorinated two-dimensional inorganic nanofiller reinforced PEO-based solid-state polymer electrolyte and a preparation method and application thereof, and comprises the following steps: S1, obtaining fluorinated two-dimensional inorganic nanofillers by treating two-dimensional inorganic materials with a mixed gas of fluorine and nitrogen; S2, dissolving polyethylene oxide and a lithium salt in a polar solvent, then adding the fluorinated two-dimensional inorganic nanofillers obtained in the step S1, mixing, and obtaining a uniform mixed polymer solution; and S3, pouring the mixed polymer solution obtained in the step S2 on a polytetrafluoroethylene mold, vacuum drying, and obtaining the PEO-based solid-state polymer electrolyte. Compared with the prior art, the preparation process is simple and easy to operate, the ionic conductivity of the polymer electrolyte based on the fluorinated two-dimensional inorganic nanofillers can be improved, the electrochemical stability window can be widened, and the interface stability between the electrolyte and a lithium metal electrode can be improved.

This application provides a dynamic ion transport binder and its preparation method, a silicon-based anode, and an all-solid-state lithium-ion battery, relating to the field of solid-state batteries. The raw materials of the dynamic ion transport binder, by mass (100%), include: 60-80% nitrile compounds, 10-30% ether-based ion compounds, and 5-10% borate compounds. The dynamic ion transport binder employs a low-polarity elastic main structure, avoiding the introduction of a large number of highly active groups such as carboxyl and hydroxyl groups, thus effectively inhibiting the decomposition of sulfide electrolytes. The borate ester dynamic bonds formed by the borate compounds undergo reversible breakage and reconstruction under stress, thereby mitigating volume changes during silicon anode cycling. This dynamic ion transport binder can effectively improve the structural integrity of the silicon-based anode after cycling, reducing interfacial delamination and crack formation.

This invention relates to the field of battery technology, and in particular to a modified negative electrode, a full cell, and a preparation method thereof. The modified negative electrode includes a negative electrode and a ceramic layer coated on the surface of the negative electrode; the ceramic layer includes a fast ion conductor, ceramic particles, and a binder. The ceramic layer of this invention employs a composition of a fast ion conductor, hollow ceramic particles, and a binder. The hollow ceramic particles provide mechanical strength and buffer space, the fast ion conductor provides an ultrafast lithium-ion transport channel, and the composite ceramic layer, incorporating the fast ion conductor and ceramic particles, provides the core requirements for stable mechanical support, stress buffering, and ion conduction at the silicon-doped negative electrode interface. This significantly improves the effectiveness of reducing interface wrinkles on the negative electrode sheet after formation, maintaining the integrity of the electrode structure between the coating and the current collector, and the active material particles.

The application provides a method for preparing biochar from fly ash under alkali treatment, which comprises the following steps: adding fly ash and corn straw into an alkaline solution, and fully reacting to obtain a mixture of fly ash and corn straw after alkali treatment; and calcining the mixture to obtain biochar. In the process of converting biomass into biochar, the aromatic ring structure is greatly increased, a dense structure is formed on the surface of the biochar, the influence of external conditions on the biochar itself is reduced and prevented, thereby inhibiting the oxidation, decomposition and release of carbon molecules, and the thermal stability and chemical stability of the biochar are improved.

This application belongs to the technical field of catalyst preparation, and particularly relates to a highly efficient hydrophobic methanol catalyst and its preparation method. The method includes: preparing raw materials such as copper salt, zinc salt, and aluminum salt, setting a preset total molar ratio of copper, zinc, and aluminum, and separating the zinc salt and aluminum salt according to a deviation of ≤10% from the total molar ratio; preparing first and second salt solutions, an auxiliary agent solution, and an alkaline solution; first establishing a first liquid level in the reactor, and then adding the first salt solution and alkaline solution in parallel at a preset temperature and pH to construct the core phase, followed by the addition of the second salt solution, the auxiliary agent solution, and the alkaline solution to form a coating layer, and aging at a higher temperature; washing, drying, and calcining to prepare a catalyst precursor; preparing a hydrophobic component solution and an oxide precursor solution, mixing and hydrolyzing them to obtain a composite hydrophobic solution; and impregnating and drying the precursor with the solution to obtain the product. This application solves the problem of water-induced deactivation of traditional catalysts and improves CO2 efficiency. 2 Conversion rate and methanol selectivity, reduced deactivation rate, and process adaptability to industrial production.

This invention discloses a highly efficient oxygen removal reagent and its application in the deoxygenation reconstruction of carbon resource molecular skeletons, comprising a pivot reagent, a phosphine reagent, an azo reagent, a reducing agent, an acid reagent, a base reagent, a photosensitizer, and an organic solvent; wherein, X in the pivot reagent includes a hydrazine group or a sulfone group; PG is a protecting group; LG is a leaving group; by using natural oxygen-containing functional groups such as alcohols, aldehydes, and ketones as direct coupling precursors, an integrated in-situ activation-deoxygenation coupling process is achieved, significantly reducing reaction steps.

A method for forming a perovskite compound thin film is disclosed, comprising reacting the following reactants: i) at least one compound selected from the group consisting of amine compounds, amine iodides, amine bromides, amine chlorides, amidine compounds, amidine iodides, amidine bromides, and amidine chlorides; ii) an organometallic compound containing a divalent cation represented by R1(CH3)4 or R1(CH2H5)4 (wherein “R1” includes metals selected from the group consisting of Pb, Sn, Ge, Sb, Bi, and Ba); and iii) at least one hydrohalide selected from the group consisting of HI, HBr, Hf, and HCl.

The application provides a battery, a battery pack and an electric device, and the battery comprises a negative electrode sheet, the negative electrode sheet comprises a solid-state electrolyte interface layer, the solid-state electrolyte interface layer comprises a fluorinated salt and a carbonate salt; the solid-state electrolyte interface layer satisfies 50% <= a1 <= 85%, 40% <= b1 <= 70%, and the application can simultaneously reduce the battery impedance and maintain the cycle stability.

This invention relates to the field of secondary batteries, specifically, to providing an organic electrolyte for sodium-ion batteries, a preparation method thereof, and its application in sodium-ion batteries. The electrolyte for sodium-ion batteries comprises sodium salts, organic solvents, and additives, wherein the additives include nitrile compounds, sulfonates, and organic sodium salts; this electrolyte can generate a dense SEI layer rich in various inorganic elements, ensuring the sodium... + The rapid diffusion of ions, combined with a suitable reduction in the organic content of the SEI, improves the stability of the SEI during long-term cycling. Compared to sodium-ion batteries assembled using phosphate materials as the positive electrode active material, the capacity retention rate is greater than 80% after 1000 cycles at 1C rate.

The invention relates to the technical field of petrochemical engineering catalytic materials, in particular to an oil-soluble iron-based catalyst and a preparation method and application thereof.The preparation method comprises the steps that fatty acid and high-polymer organic acid serve as organic acid ligands, and under the alkaline condition, the fatty acid, the high-polymer organic acid and soluble iron salt are mixed to obtain a mixture; reacting carboxyl in fatty acid and high polymer organic acid with iron ions in soluble iron salt to obtain an oily polyisobutylene maleic acid iron complex; the preparation method comprises the following steps: by taking an oily polyisobutylene maleic acid iron complex as a precursor, reacting the precursor at 120-180 DEG C to obtain the amorphous oil-soluble iron-based catalyst. Due to the amorphous structure of the oil-soluble iron-based catalyst prepared by the method, the oil-soluble catalyst has higher stability and is not easy to inactivate. The oil-soluble iron-based catalyst is subjected to a hydrothermal cracking reaction, heavy oil molecules can be cracked into small molecule compounds, the boiling point of the heavy oil is reduced, a large amount of light oil is generated, and the viscosity of the heavy oil is reduced.