1425 results about "Reaction system" patented technology

The invention discloses a multistage circulating fluidized bed hydrogen peroxide integrated production method, and relates to the field of hydrogen peroxide preparation.The method comprises the steps that continuous efficient synthesis of hydrogen peroxide is achieved by constructing a multistage serial circulating fluidized bed reaction system; meanwhile, a genetic algorithm based on historical data is introduced to perform off-line optimization on process parameters such as reaction temperature, flow velocity, catalyst particle size, gas-liquid ratio and retention time, so that the hydrogen peroxide yield is improved, the energy consumption per unit yield is reduced, and the generation of byproducts is inhibited; the constructed optimization objective function adopts a weighted mean square error structure, multiple objectives are balanced, and it is ensured that the overall working condition is optimal; an optimization result is used for guiding initial setting and steady-state operation of a reaction system, and efficient reaction can be realized without real-time sensor control. The system has the advantages of high process structure integration level, high control strategy intelligence degree, good operation stability and the like, and is suitable for continuous optimization operation of medium and large hydrogen peroxide production devices.

The invention relates to the technical field of adsorbents, and discloses a moisture-resistant carbon dioxide trapping adsorbent, and a preparation method thereof comprises the following steps: S1, blending oxalic acid or oxalate or squaric acid and a zinc source in a reaction system to obtain a mixture I; s2, dissolving an organic ligand in a solvent to obtain a mixture II; s3, the mixture I and the mixture II are subjected to a reaction and post-treatment, and the adsorbent is obtained. According to the prepared adsorbent, a pore structure is formed in situ in the preparation process, the specific surface area is large, the porosity is large, the structure can be kept stable in the presence of water and steam, and the adsorbent is stable to wet acid gas.

The invention relates to the technical field of oil and gas reservoirs, and discloses a carbon dioxide dynamic water-rock reaction measuring device and method.According to the method, five groups of rock samples from the same well and with the same well depth are adopted for a parallel control experiment, the five groups of rock samples correspond to five reaction times set by the experiment respectively, and after each reaction is finished, the reaction time is calculated; according to the method, the porosity, permeability, mineral components and clay mineral components of corresponding rock samples are measured, the fluid ion concentration after the reaction is measured and analyzed, the carbon dioxide burying amount is calculated, experiments of other groups are not interfered, the reaction continuity and the reaction system sealing performance can be guaranteed, and the stratum reaction environment can be simulated more truly.

The invention provides a method for preparing high-purity phosphatidylserine by a batch enzyme catalysis method based on dynamic choline removal, and belongs to the technical field of enzymatic reaction. According to the method disclosed by the invention, in a reaction system for preparing phosphatidylserine, a byproduct choline is selectively adsorbed by adopting resin. Choline in a reaction system is removed in real time through the integrated adsorption separation module, the enzyme inhibition problem is solved, and meanwhile, the PC conversion rate is larger than or equal to 98% and the PS purity is larger than or equal to 96% in combination with the immobilized enzyme circulation technology; the enzyme can be reused for more than or equal to 20 times (activity retention is more than or equal to 90%); and the choline residual concentration is less than or equal to 0.5 mM (an inhibition threshold value or less).

The invention relates to the technical field of chemistry and chemical engineering, and particularly discloses a production process of low-molecular-weight bisphenol A type polycarbonate polyether polyol and an intelligent gas control method, the production process comprises a premixing step, a feeding step, a CO2 pressure maintaining step, a heating step and a circular reaction step, in the circular reaction process, the reaction temperature is monitored in real time, and the reaction time is shortened; and performing multi-dimensional time sequence analysis on the time sequence data of the reaction temperature by adopting an intelligent industrial control technology so as to excavate the time sequence change trend of the reaction temperature and the fluctuation information of the temperature change rate, and judging whether CO2 gas needs to be supplemented in the current temperature state or not through an intelligent classification algorithm by taking the fluctuation information as an adjustment basis. Therefore, the temperature fluctuation in the reaction process can be responded in real time, and the self-adaptive supplement control of the CO2 gas is realized to ensure that the temperature of the reaction system is maintained in a safe and efficient range, so that the problem of yellowing of the temperature-sensitive micromolecular polycarbonate polyether polyol product is solved.

The invention relates to the field of gene detection, and discloses a detection primer for an abdominal aortic aneurysm related SNP site rs116309149 and application of the detection primer, and the detection primer comprises two non-specific outer side primers and two inner side primers for specifically detecting SNP mutation sites; the outer primer has sequences as shown in SEQ ID NO: 1 and SEQ ID NO: 2 or complementary sequences of the sequences as shown in SEQ ID NO: 1 and SEQ ID NO: 2; and the inner side primer has sequences as shown in SEQ ID NO: 3 and SEQ ID NO: 4 or complementary sequences of the sequences as shown in SEQ ID NO: 3 and SEQ ID NO: 4. According to the detection primer and the application design of the detection primer, the primer which is specifically matched with the rs116309149 site based on an ARMS-PCR method is verified, a reaction system and reaction conditions are perfected and optimized based on the detection primer, amplification and detection of a target gene are successfully completed, and the positive significance is achieved for clinic.

The invention relates to a method for producing high-octane gasoline through hydrocarbon catalytic cracking and a reaction system thereof, and the method comprises the following steps: in a constant linear velocity fluidized bed reactor, diesel oil and other light petroleum hydrocarbons are contacted with a high silica-alumina ratio catalytic cracking catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce liquefied gas and high-octane gasoline. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

The utility model discloses an MABR (Membrane Aerated Baffled Reactor) membrane aeration reaction system capable of adaptively adjusting the thickness of a biological membrane layer, which comprises an MABR membrane bioreactor, a membrane pool and a guide rail, and the MABR membrane bioreactor is movably limited on the guide rail; the MABR membrane bioreactor comprises a membrane frame and a membrane assembly, the upper end of the membrane frame is provided with an MABR membrane gas inlet, an MABR membrane tail gas outlet, an aeration gas inlet and a fixing pin, the fixing pin is connected with a valve of an aeration gas inlet valve through a control connecting rod, the membrane frame is further provided with limiting claws and a pulse aeration box, the limiting claws are located on the two sides of the membrane frame, and the pulse aeration box is connected with the limiting claws. The guide rail is used for limiting the MABR on the guide rail and can freely float up and down on the guide rail; the pulse aeration box is positioned below the MABR membrane component and is used for pulse aeration. According to the utility model, the pulse aeration and the MABR technology are combined, the MABR can automatically sink and float up and down under the action of self gravity and buoyancy of the MABR, the thickness of the MABR biological membrane layer is further adaptively controlled, and the device is energy-saving, efficient and free of manual operation.

The invention relates to a fluidized bed reaction system for a silicon-carbon negative electrode material. The silicon-carbon negative electrode material fluidized bed reaction system comprises a drying tank, a fluidized bed reactor and a discharge tank, the drying tank is provided with a material cavity, and the drying tank can dry materials in the material cavity and can also convey replacement gas into the material cavity to replace gas in the material cavity; the fluidized bed reactor is internally provided with a gas-solid separation area, a reaction area and an initial fluidization area which are sequentially arranged from top to bottom, and the reaction area is communicated with the material cavity so as to receive the dried materials; the discharge tank is provided with a dust removal cavity, the dust removal cavity is communicated with the gas-solid separation area through a discharge pipeline, the discharge pipeline is provided with a blasting assembly, and when the pressure in the fluidized bed reactor exceeds a first preset value, the blasting assembly can be broken to release gas in the fluidized bed reactor; meanwhile, powder in the fluidized bed reactor can be discharged into the washing liquid in the dust removal cavity through the discharge pipeline.

The invention provides an ultralow-dosage composite nano early strength agent and a preparation method thereof.The preparation method of the ultralow-dosage composite nano early strength agent comprises the following steps that S1, nano silica sol and silane modified polycarboxylic acid are mixed and stirred, and a suspension A is obtained; s2, adding a calcium source and a dispersing agent into the suspension A, adjusting the pH value to 9-12, and fully stirring to obtain a base material B; s3, dropwise adding a silicon source into the base material B in the S2, shearing and stirring at a high speed, keeping the pH value of a reaction system unchanged, and continuously shearing and stirring at a high speed for 1-2 hours after dropwise adding is finished, so as to obtain the ultralow-dosage composite nano early strength agent. The ultralow-dosage composite nano early strength agent can achieve an excellent early strength effect under the ultralow-dosage condition, and meanwhile, the later strength of concrete can be remarkably improved.

A reaction system includes a vessel having a gas inlet and a gas outlet, a liquid within the vessel, a solid phase and a gas phase present within the vessel, and at least one liquid separator disposed within the vessel. The liquid has an upper liquid surface within the vessel, and the liquid separator is configured to remove at least a portion of liquid droplets generated based on the gas phase and the solid phase passing through the liquid.

The invention discloses a methylal production raw material mixer and a working method thereof. The methylal production raw material mixer comprises a kettle body, the outer wall of the kettle body is fixedly sleeved with a bottom sleeve, a plurality of supporting legs are arranged on the outer side wall face of the bottom sleeve, and a discharging valve is arranged at the lower end of the kettle body; the invention relates to the technical field of methylal production technologies, and has the beneficial effects that liquid formaldehyde is intermittently dropwise added through linkage control of a rotating plug and a lifting plug when the liquid formaldehyde is added, and the liquid formaldehyde is dropwise added dispersedly through a plurality of droppers, so that local reaction overheating caused by concentrated addition is avoided, side reactions are reduced, and the production efficiency is improved. The dropper penetrates through the heating cavity of the kettle cover with the special-shaped cavity, and the liquid formaldehyde is preheated before being dropwise added, so that the temperature of a mixed solution is prevented from being suddenly reduced by a low-temperature raw material, and the catalytic activity is ensured; the cylindrical cavity surface of the special-shaped cavity kettle cover extends into the kettle body, and heat is directly supplemented to the central area of a reaction system on the basis of outer layer heating, so that the temperature gradient is eliminated.

The utility model belongs to the technical field of chemical equipment, and particularly relates to a self-cleaning reaction system which comprises a reaction tank, two groups of spraying balls are arranged at the top of an inner cavity of the reaction tank, spraying branch pipes are arranged on the spraying balls in a matched mode, and one ends, away from the spraying balls, of the spraying branch pipes penetrate through the top of the reaction tank to be connected with a first liquid inlet pipe. Two groups of nozzles are arranged on the side wall of an inner cavity of the reaction tank, nozzle branch pipes are arranged on the nozzles in a matched mode, the ends, away from the nozzles, of the nozzle branch pipes penetrate through the side wall of the reaction tank and are connected with second liquid inlet pipes, and the ends, away from the nozzle branch pipes, of the first liquid inlet pipes and the ends, away from the nozzle branch pipes, of the second liquid inlet pipes are jointly connected with a main liquid inlet pipe; the end, away from the reaction tank, of the closed loop is connected with a liquid inlet main pipe. A circulating pump, a filter, a cleaning tank, a high-pressure pump and a heater are sequentially arranged on the closed loop in the liquid flowing direction. According to the utility model, cleaning blind areas can be eliminated, and meanwhile, resource waste of cleaning liquid is reduced.

The invention relates to a liquid multi-material reaction system, which comprises a first material stirring kettle, a second material stirring kettle, a reaction kettle, an emulsifying device and a finished product kettle, the first material stirring kettle and the second material stirring kettle are respectively connected with the reaction kettle, the reaction kettle and the emulsifying device are respectively connected with the finished product kettle, and the finished product kettle is connected with the emulsifying device. The first material stirring kettle is filled with a first material and is used for stirring the first material during working, and the second material stirring kettle is filled with a second material and is used for stirring the second material during working; when the reaction kettle works, a first material injected from the first material stirring kettle and a second material injected from the second material stirring kettle are stirred and reacted to form a first intermediate product. By arranging the first material stirring kettle, the second material stirring kettle, the reaction kettle, the emulsifying device and the finished product kettle, a safe and efficient production system is provided for brine reaction; and the air pressure sensor and the suction mechanism are arranged, so that furnace explosion is avoided.

A heat storage reaction system according to an embodiment includes: a chamber that includes a combustion chamber; a plurality of beds that are disposed in a lower portion of the chamber, in which a plurality of trays having a material module disposed therein are fixed to form layers; a connection passage that connects the lower portion of the chamber and upper portions of each bed; and a valve that controls opening and closing of the connection passage, in which each of the beds may include one or more opening and closing parts with one side surface opened.

The invention discloses a high-flux automatic chemical synthesis workstation, which relates to the technical field of chemical synthesis, and comprises a base, the base is detachably provided with a negative pressure suction filter, a magnetic stirring reactor, a high-flux chemical reaction module, a gun head box, a cover plate and a liquid storage tank, and the negative pressure suction filter and the magnetic stirring reactor can be replaced by other detection instruments. The cover plate is in lap joint with a screw, the base is further provided with a moving device, the moving device is provided with a button assembly, a clamping jaw assembly and a pipetting assembly, the pipetting assembly is used for pipetting, and the clamping jaw assembly drives the cover plate to the high-flux chemical reaction module for sealing. The sealing module is driven to the reactor through the clamping jaw assembly after being fastened through the fastening assembly, and real-time observation can be carried out during remote operation. By means of the technical scheme, it is guaranteed that high-throughput chemical synthesis experiments including pipetting, reaction system sealing, reaction starting, gradient dilution and suction filtration are completed in one work station.

The embodiment of the invention discloses system control equipment for a methanation reaction system. The equipment comprises a methanation reaction system, a distributed control system and an advanced control system, the distributed control system is used for collecting the real-time flow value of the raw material gas passing through the flow control main valve and the flow control slave valve, the temperature value of the first gas passing through the first reactor and the temperature value of the second gas passing through the second reactor; sending the feed gas real-time flow value, the first gas temperature value and the second gas temperature value to an advanced control system; and the advanced control system is used for determining the valve opening degrees of the flow control main valve and the flow control slave valve according to the real-time flow value of the raw material gas, determining the valve opening degree of the distribution valve according to the second gas temperature value, and determining the valve opening degrees of the anti-surge valve and the guide vane valve according to the first gas temperature value. By applying the scheme provided by the embodiment of the invention, the methanation reaction system can be accurately controlled, so that the quality of finished gas is ensured to meet the process requirements.

This invention discloses a method for preparing a multi-shell porous core-shell structured nickel-based cathode material precursor. This method directly controls the preparation of the precursor through partial reaction control. A seed reactor and a reaction vessel are connected to a concentration tank to control the precursor particle size. During the precursor preparation stage, the pH of the reaction system is controlled by continuously reducing the flow rate of the complexing agent solution, thereby achieving continuous coating of the seed core surface with multiple loose shells. The cathode material prepared based on the multi-shell porous core-shell structured nickel-based cathode material precursor can store more electrolyte, thus improving the cycle performance during charge and discharge. Furthermore, the loose porous structure of the cathode material prepared based on the multi-shell porous core-shell structured nickel-based cathode material precursor can provide more storage space under overcharge conditions of lithium-ion batteries, thereby improving their safety performance.

The invention relates to the technical field of building material preparation, in particular to a preparation device for composite modified asphalt. Comprising a modified material premixing bin, an asphalt feeder and a main reaction system, a modified material feeding port and an asphalt feeding port are formed in the top of the main reaction system, the modified material premixing bin is communicated with the main reaction system through the modified material feeding port, and the asphalt feeder is communicated with the main reaction system through the asphalt feeding port; the main reaction system is of a multi-stage mixing reaction kettle structure and sequentially comprises a first-stage vertical stirring area, a second-stage high-speed shearing area and a third-stage static mixing area, and the interiors of the first-stage vertical stirring area, the second-stage high-speed shearing area and the third-stage static mixing area are communicated with one another; and through continuous design of multi-bin matching and multi-stage mixing, the problems of non-uniform mixing and low product performance of the composite modified asphalt are solved.

The invention provides a preparation method of an Al18F-labeled PSMA radiopharmaceutical, according to the preparation method, through adjustment of a reaction system, the labeling time efficiency, the radiochemical purity of a final product, the radiochemical conversion rate and the product yield are ensured, meanwhile, the requirement for the fluorination reaction temperature in the labeling process is effectively reduced, and the product yield is improved. The preparation method of the Al18F-labeled PSMA radiopharmaceutical provided based on the method has good applicability and thorough reaction, new impurities are not introduced into a final product due to reduction of the reaction temperature or adjustment of a reaction system, the variety and content of the impurities in the final product can be further reduced and controlled, and the preparation method is suitable for industrial production. And the medication safety of a patient is further ensured. In addition, the final product obtained by the preparation method provided by the invention has good inter-batch uniformity, and has good stability under the storage conditions of 30 DEG C + / -2 DEG C and 40 DEG C + / -2 DEG C.

An apparatus management system (10), in particular a vehicle management system, for controlling at least one function of an apparatus (1), such as a vehicle, operated by an operator (2) and exposed to a potential impact (3) approaching the apparatus (1), as well as a corresponding apparatus (1) and a system training device (200) are provided, the apparatus management system (10) comprising: an impact reaction system (11), configured for generating a command for controlling the at least one function of the apparatus (1); wherein the impact reaction system (11) comprises: an intervention control unit (100); and an operator notification unit (55); wherein the intervention control unit (100) comprises at least one control model configured for assessing at least one command for controlling the at least one function of the apparatus (1) to perform an intervention in order to avoid the impact (3); wherein the operator notification unit (55) is configured to issue at least one notification to the operator (2) regarding the at least one command; and wherein the intervention control unit (100) is configured to output the at least one command for controlling the at least one function of the apparatus (1) subsequent to issuance of the notification.

The invention discloses a construction method and application of an SERS (Surface Enhanced Raman Scattering) sensor for detecting Mn < 7 + >. Belongs to the field of detection application, and the construction method of the SERS sensor for detecting Mn < 7 + > comprises the following steps: uniformly mixing an ABTS solution, a to-be-detected solution containing Mn < 7 + > and a silver nanoparticle solution, adding an acid solution to adjust the pH value of a reaction system, and reacting for 1-3 minutes. The SERS sensor for detecting Mn < 7 + > is applied to detection of heavy metal Mn < 7 + >. According to the method disclosed by the invention, by virtue of specific selection of the ABTS on Mn < 7 + > and addition of silver which has extremely high characteristics on SERS detection, convenient and rapid trace detection on Mn < 7 + > is realized. The selective reaction material explored by the invention is used for trace detection of heavy metal Mn < 7 + > by utilizing an SERS technology, and has important significance in application to actual life.

The invention relates to the technical field of adhesive preparation, and discloses a shaving board biomass adhesive preparation adding device and an adding method thereof.The shaving board biomass adhesive preparation adding device comprises a spherical mixing bin, a heating rod is arranged in the shell wall of the spherical mixing bin, a feeding port is fixedly connected to the top of the spherical mixing bin, and a hopper is fixedly connected to the top of the feeding port; a discharging pipe is fixedly connected to the bottom of the spherical mixing bin, an intermittent feeding mechanism is arranged in a feeding port, and the method comprises the following steps that firstly, raw materials are prepared; 2, the adding amount of the raw materials added at a time of an intermittent feeding mechanism is set; and step 3, mixing the raw materials, intermittently adding the raw materials, and realizing process optimization by accurately setting the adding amount each time, so that the inherent advantage of intermittent adding can be amplified, the stability, efficiency and controllability of viscose preparation can be further improved through quantitative control, and the dynamic balance in a reaction system is ensured.

The invention provides a movable zero-carbon emergency energy device and management method for hydrogen-oriented wind-light-storage cooperation, and the device comprises a reaction system which is used for preparing a hydrogen flow in real time; the auxiliary gas system is used for outputting auxiliary gas flow; the fuel cell system is used for generating electricity through the reaction of the hydrogen flow and the auxiliary gas flow; the power storage system is used for storing electric energy generated by power generation of the fuel cell system; the discharging system is used for outputting the electric energy stored in the electricity storage system at a corresponding output voltage according to a preset requirement; the control system is used for coordinating and controlling the reaction system, the auxiliary gas system, the fuel cell system, the power storage system and the discharge system; and the explosion-proof box is used for loading the system. According to the movable zero-carbon emergency energy device for hydrogen-oriented wind-light-storage cooperation, power can be supplied to the outside by preparing hydrogen in real time and adopting a fuel cell power generation mode, the position of the device can be flexibly adjusted according to the power supply requirement, and the high-reliability, green and low-carbon emergency energy supply requirement is met.

The present invention belongs to the technical field of chemical production, and specifically is a microfluidic reactor supporting exothermic and gas-releasing reactions; it comprises a reactor cylinder, a plurality of vertical microchannel heat exchange tubes are arranged in the reactor cylinder, and a circle of microchannel reaction grooves are arranged on the outer wall of the microchannel heat exchange tubes; a material guide plate is connected to the top of the plurality of microchannel heat exchange tubes, and a distribution groove is arranged on the outer side of each microchannel heat exchange tube of the material guide plate, and microchannel guide holes are arranged on the side wall of the distribution groove; a drainage groove is arranged on the material guide plate, and the drainage groove is connected with the distribution groove; the reactor cylinder is provided with an exhaust port; the present invention uses the plurality of microchannels on the outer wall of the microchannel heat exchange tube as reaction grooves for solution chemical reactions, and the inside of the microchannel heat exchange tube as a heat exchange channel, thereby increasing the contact area of ​​the solution, improving the heat exchange, and achieving the dual effects of reaction heat exchange and exhaust; and solves the problem of increased pressure of the reaction system or increased by-products.

The invention discloses a method for leaching waste lithium battery positive electrode powder by using intestinal flora in a neutral environment, and belongs to the technical field of resource recycling, the method comprises the following steps: step 1, a pretreatment link, the pretreatment link comprises the following process links, and each link has no sequence: (1) preparation of battery powder, (2) acquisition of intestinal flora, and (3) preparation of a culture medium; 2, domesticating the flora; and 3, valuable metal in the waste battery powder is leached out. According to the method, the intestinal flora is applied to the biological leaching of the waste LIBs positive electrode powder, so that the dependence of traditional strong acidophilic bacteria on an extremely low pH condition is broken through, and the environmental harm is greatly reduced; according to the method, inorganic acid does not need to be added, the pH value of a reaction system is stabilized within the nearly neutral range of 7.8-8.2, equipment loss caused by acid etching is reduced, reagent consumption for subsequent metal recovery and neutralization treatment is reduced, and remarkable economic benefits and environmental benefits are achieved.

The invention relates to the technical field of high polymer materials, in particular to a polyurethane elastomer cable sheath material and a cable preparation method, and the method comprises the following steps: S1, weighing raw materials according to a preset ratio; s2, uniformly mixing polyether polyol, an antioxidant and an ultraviolet light absorber, and removing moisture; s3, diisocyanate is gradually added, and a prepolymer is formed; s4, gradually adding a chain extender under a stirring condition; s5, premixing a plasticizer, a flame retardant and a silane coupling agent, and gradually adding into the reaction system to form a semi-finished product mixture; s6, standing in a vacuum environment; s7, curing and molding the semi-finished product mixture after standing; and S8, annealing treatment is carried out, internal stress is released, and a cable finished product is obtained. According to the invention, by optimizing chemical components and a production process, the flexibility, wear resistance and weather resistance of the material are remarkably improved, meanwhile, the environmental protection property and production efficiency are ensured, and the requirements of high performance and environmental protection standards are met.

The invention provides a reforming reaction system based on a Joule heat effect and application of the reforming reaction system. The reforming reaction system comprises a raw material gas inlet unit, a reaction tube, a Joule heating unit and a power supply device, wherein the reaction tube comprises a gas inlet, a gas outlet and a reaction cavity, and the gas inlet is connected with the raw material gas inlet unit; the Joule heating unit comprises a heating element, the heating element is arranged in the reaction cavity, the heating element comprises a preheating zone and a reaction zone, and the preheating zone is adjacent to the gas inlet; the power supply device provides current to enable the heating element to generate heat. The monolithic catalyst is directly heated in the reaction tube based on the Joule effect, high-temperature accurate control is achieved, generated heat is rapidly and evenly transferred to active sites of the catalyst, the catalyst is applied to a method for preparing synthesis gas through methane and carbon dioxide reforming reaction, catalytic performance is improved, and long-period stable operation of catalytic reaction is achieved.

The invention discloses a method for preparing a sodium electric precursor by a redox control potential method. According to the invention, the oxidation-reduction electrode is arranged on the reaction kettle to monitor the oxidation-reduction potential of the reaction system in real time, and different potential control is realized by controlling the purity of nitrogen and other mixed gases in the reaction kettle or the dosage of an oxidation-reduction agent added into the reaction kettle; the primary and secondary particle morphology, the specific surface area and the product compaction of the product can be effectively controlled, and precursors with different physical and chemical indexes can be prepared according to different potentials. According to different characteristics of the precursor, the sintered positive electrode material has different electrochemical properties, such as higher electrochemical rate capability, gram volume and cycle performance, so as to meet application requirements of different products.

The invention belongs to the technical field of chip diagnosis, and discloses a sample introduction and reaction system for chip sequencing, the sample introduction and reaction system comprises a supply device, a flow channel switching device, a dismounting device, an extraction device and a reaction tank; the supply device is provided with a sealed detachable opening structure, and the opening detaching device can move relative to the supply device until the detachable opening structure is opened; the supply device is arranged around the flow channel switching device, the extraction device is connected with the bottom end of the supply device and the reaction tank through the flow channel switching device, and the flow channel switching device can enable the supply device to be communicated with the extraction device or enable the extraction device to be communicated with the reaction tank by switching the state of the flow channel switching device. According to the sample introduction and reaction system for chip sequencing, the reagent conveying time can be shortened, the phenomenon of dead volume of a reagent in the conveying process is reduced, the problem of reagent waste caused by bubbles generated by a pipeline in the conveying process is effectively avoided, and the reagent sample introduction efficiency is improved.