32 results about "Reducing substances" patented technology

The invention discloses a fly ash dioxin separation method, fly ash dioxin separation equipment, a fly ash treatment method and a fly ash treatment system, and solves the technical problems of high energy consumption, high cost and lack of efficient and low-energy-consumption dioxin dissociation and enrichment separation means in a fly ash treatment process in the prior art. Comprising the following steps: mixing fly ash with water to prepare fly ash slurry; the method comprises the following steps: adding an oxidizing agent into fly ash slurry to carry out oxidation reaction so as to carry out oxidation treatment on reducing substances on the surface of the fly ash, adding acid into the fly ash slurry subjected to oxidation treatment to carry out modification reaction so as to etch the fly ash by using the acid to dissociate dioxin particles from the surface of the fly ash and show hydrophobicity; or adding acid into the fly ash slurry to carry out modification reaction, and controlling the pH value of the fly ash slurry after the modification reaction to be 6-12.5; bubbles are generated or introduced into the fly ash slurry after the modification reaction, the dioxin particles are captured by the bubbles and float upwards to form scum, so that the scum is separated from mother liquor, and detoxified slurry is obtained.

To provide a detection device and a detection method which can detect which of inner and outer pipes comprising a double-structure pipe is damaged more easily than before.SOLUTION: A detection device 1 detects damage of a pipe 20 having: an inner pipe 21 through which a reducing substance passes; and an outer pipe 22 having a substantially vacuum-state region 32 between the inner pipe 21 and itself. The detection device 1 includes: a gas sensor 2 provided between the inner pipe 21 and the outer pipe 22; and a determination part 11 for determining which of the inner pipe 21 and the outer pipe 22 is damaged on the basis of output of the gas sensor 2.SELECTED DRAWING: Figure 1

The invention discloses a preparation method and application of oxidative stress microenvironment response intelligent semi-conversion hydrogel, and belongs to the technical field of biological medicine. According to the preparation method disclosed by the invention, a therapeutic drug can be wrapped in the drug and placed in a local injury part, and a large amount of ROS released by oxidative stress in the early stage of spinal cord injury (SCI) is responded, so that conversion from a gel state to a semi-gel sol state is realized, and explosive release of the drug is caused while the ROS is consumed; the medicine treatment concentration is quickly reached in the acute stage of SCI; after the SCI oxidative stress period, ROS release is reduced, and under the action of in-vivo reducing substances, the hydrogel can be recovered from a semi-sol-gel state to a gel state, so that long-term slow release of to-be-released drugs is realized, and later-stage neural restoration of SCI is promoted; through the conversion from the gel state to the semi-sol gel state to the gel state, intelligent drug controlled release responding to oxidative stress can be achieved, and therefore the optimal SCI treatment effect is achieved.

The invention belongs to the technical field of precious metal recovery and resource cyclic utilization, and particularly discloses a thermal driving interface micro-droplet mediated precious metal selective recovery method. The method comprises the following steps: firstly, mixing a to-be-treated solution containing noble metal ions with an auxiliary organic phase to construct an organic-inorganic interface system; then heating the organic-inorganic interface system to induce generation of micro-nano-scale micro-droplets at the phase interface, and promoting reduction reaction of noble metal ions to obtain noble metal precipitates; and separating the precious metal precipitate to finish selective recovery of the precious metal. According to the method, precious metal ions are efficiently reduced into simple substances by using high-activity reducing substances generated on the surfaces of the micro-droplets, and selective recovery of precious metal is realized by virtue of a specific reduction reaction threshold value of a system. The self physical and chemical characteristics of the system can also be utilized to promote the reduction products to spontaneously aggregate and grow into large-size particles, so that the subsequent separation is facilitated. The method has the advantages of no need of adding an external reducing agent, simple operation, mild conditions and good selectivity.

A gas production apparatus includes: a separator configured to separate and capture a separated gas including carbon dioxide as a main component from an exhaust gas of exhaust gas equipment; reactors which are downstream of the separator, each of the reactors: (i) containing a reductant configured to contact the separated gas to produce carbon monoxide through a reduction reaction of carbon dioxide; (ii) being configured to separate at least some oxygen atoms split off from carbon dioxide in the reduction reaction; and (iii) having a reducing agent containing a metal oxide configured to reduce carbon dioxide as the reductant; a reducer configured to supply a reducing gas containing a reducing substance configured to reduce the reducing agent oxidized by contact with carbon dioxide; a pressure regulator configured to regulate a pressure of the separated gas; and a flow regulator configured to regulate a flow rate of the separated gas.

The invention discloses a liquid polyferric sulfate reducing substance rapid detection reagent and a preparation method thereof, and belongs to the technical field of reducing substance detection.According to the liquid polyferric sulfate reducing substance rapid detection reagent, qualitative judgment on the content of reducing substances can be directly achieved through solution color changes, complex titration operation and professional instrument analysis are not needed, and the detection accuracy is high. And the detection process is obviously simplified. Due to the rapid detection capability, the content of reducing substances in a product in the reaction kettle can be monitored in real time in the production process, the reaction process can be mastered in time, and time delay caused by detection in a sample feeding laboratory is avoided, so that invalid consumption of a catalyst and unnecessary prolonging of reaction time are effectively reduced, and the overall production efficiency is improved. Meanwhile, the qualitative judgment result of the reagent can directly correspond to the limit value requirement specified by the national standard, the requirement for rapidly screening the product quality in the production process is met, and convenient technical support is provided for ensuring that the final product meets the standard.

The invention discloses a bio-responsive high polymer material and application thereof, and belongs to the technical field of biomedical materials. The bio-responsive high-molecular material provided by the invention contains polymers shown as formulas i to viii. Wherein the polymers of the formulas i to viii have excellent fluorescence performance, aggregation-induced fluorescence enhancement performance, multicolor luminescence performance and biological response capability based on a redox reversible switch, and can be applied to sensing, counterfeiting prevention, metal ion detection, multicolor imaging of in-vivo and in-vitro cells and / or tissues and quantitative detection of in-vivo and in-vitro oxidized and / or reducing substances; active oxygen in in-vivo and in-vitro tissues and cells can be removed to achieve long-acting anti-inflammatory and anti-oxidation effects, and the compound can be used for treatment of oxidative stress related diseases and visual monitoring of the treatment process; the biological activity of enhancing tissue retention, stimulating collagen generation, repairing tissue and resisting oxidation and aging of the tissue is achieved, and the effect of filling and repairing in-vivo cells and tissue can be effectively improved; the compound also has the capability of being chelated with metal ions to form a high-molecular metal complex, and can be used for resisting tumors, resisting bacteria, filling and repairing tissues, promoting collagen generation and the like.

The application discloses a high-pressure leaching system and a high-pressure leaching method based on carbon dioxide and oxygen. The high-pressure leaching system comprises a carbon dioxide injection device, a high-pressure oxygen injection device and a high-pressure liquid injection device. The carbon dioxide injection device is connected with a liquid injection pipeline through a carbon dioxide gas conveying pipeline and a liquid carbon dioxide conveying pipeline. One end of the liquid injection pipeline is connected with a water storage tank, and the other end of the liquid injection pipeline is connected with an injection well. The other ends of the carbon dioxide gas conveying pipeline and the liquid carbon dioxide conveying pipeline are connected with a liquid carbon dioxide storage tank. The high-pressure oxygen injection device comprises a high-pressure oxygen conveying pipeline. One end of the high-pressure oxygen conveying pipeline is connected with a liquid oxygen storage tank, and the other end of the high-pressure oxygen conveying pipeline is connected with the injection well. The high-pressure injection of gaseous or liquid carbon dioxide increases the acidity of underground water, accelerates the dissolution of minerals and the complexation of uranium. The high-pressure injection of oxygen can quickly oxidize uranium-containing minerals and reducing substances, and improve the leaching rate of uranium.

One embodiment of a method for producing a chemical substance according to the present disclosure is a method for producing a chemical substance by converting a starting material in the presence of a catalyst to yield a product, the method including bringing the starting material into contact with the catalyst heated to 400°C or lower by irradiation with microwaves. The starting material and / or the product contains a reducing substance, and the catalyst includes at least one metal oxide selected from among compounds represented by general formula (1). 　General formula (1): MaMbO3 In general formula (1), Ma represents at least one metallic element selected from among the alkaline earth metals and the lanthanoids and Mb represents at least one metallic element selected from among Fe, Co, Ni, Mn, Cu, and Ti.

The invention relates to the technical field of determination of chemical oxygen demand (COD) of a catalyst, in particular to a rapid COD determination method for an improved catalyst system, chemical oxygen demand (COD) serves as a key index for measuring the content of reducing substances in a water body, and the content of the reducing substances in the water body is determined through oxidation treatment of potassium dichromate. The amount of potassium dichromate consumed by the oxidized reducing pollutants in the water sample corresponds to the mass concentration of oxygen, and the measurement result directly reflects the pollution degree of the water body. COD is one of core parameters for water environment monitoring and treatment, a traditional COD determination method takes a potassium dichromate oxidation method as a reference, but has the problems of low reaction efficiency, long time consumption, incomplete oxidation caused by a single catalyst, weak anti-interference capability and the like, depends on manual operation, and is inconvenient to operate. In the prior art, the requirements of modern environment monitoring on rapidness, accuracy and automation are difficult to meet due to large reagent dosage and high secondary pollution risk, and for a complex water sample, a traditional method is easy to cause determination deviation and insufficient in data sharing and remote monitoring capability, so that the intelligent development of water environment monitoring is restricted.

The invention relates to the technical field of drinking water filtering, and discloses a drinking water filtering device which comprises a first filter cartridge and a second filter cartridge, the first filter cartridge and the second filter cartridge are connected through a water guide pipe, and drinking water is primarily filtered through the first filter cartridge and then guided into the second filter cartridge to be secondarily filtered. By arranging the first filter cylinder and the second filter cylinder, the first filter mechanism and the second filter mechanism are arranged respectively, double filtration of drinking water is achieved, the first filter cylinder and the second filter cylinder remove large impurities and particles and fine impurities and harmful substances respectively, it is ensured that the filtered drinking water reaches the higher quality standard, and the drinking water quality is improved. A filter element I in the filter mechanism I rotates under the driving of a motor to generate centrifugal force, impurities in drinking water are separated and blocked in the filter element, and meanwhile, under the action of a guide plate and a driving lever, the drinking water generates bubbles, promotes an oxidation-reduction reaction and removes reducing substances such as ferrous ions, manganese ions and the like, so that the filtering effect is effectively improved.

The present application belongs to the field of gas detection, and relates to a combined detection tube for detecting carbon monoxide concentration in blood. The device of the present application is composed of a sample adding tube and a detection tube. The filler section arranged in the sample adding tube can effectively destroy red blood cells to release CO gas under the action of Cr(VI) / Cr(III) redox system, and at the same time, the reducing substances such as glutathione (GSH) and ascorbic acid in blood are removed through the interference removal section, thereby significantly improving the specificity and accuracy of detection. The indicating glue section in the detection tube adopts a platinum-selenium compound and a potassium iodate system, which occurs a color reaction in the presence of CO: I2O5+5CO→I2+5CO2, and the generated iodine element presents a brown color development band, the length of which is positively correlated with the concentration of HbCO, so as to realize the visual quantitative analysis of the content of carboxyhemoglobin in blood.

The invention relates to the technical field of zinc electrolysis, in particular to a regulation and control method for efficiently and rapidly improving the concentration of manganese ions in a zinc electrolytic solution. According to the technical scheme, the method comprises the following steps: in a wet leaching process, adding a reducing substance into a material system containing manganese dioxide, so that the manganese dioxide is reduced into soluble Mn < 2 + >; the reducing substance is metal zinc particles and / or zinc concentrate containing Fe < 2 + >, and electrolysis parameters are cooperatively regulated and controlled: in the electrolysis process, the current density is controlled to be less than 300 A / m < 2 >, the electrolysis period is prolonged to 36-48 hours, and the temperature of an electrolyte is controlled to be 34-36 DEG C. According to the method disclosed by the invention, the concentration of manganese ions in the solution is remarkably improved within a short time through the synergistic regulation of the overwet method and the electrolysis, the manganese content of the lead-silver residues is greatly reduced, the standard reaching rate of 0 # zinc is 100%, meanwhile, the consumption of manganese salt is remarkably reduced, and good technical effects and economic benefits are achieved.

The application discloses an energy storage device based on reverse electrodialysis technology, and designs the structure of the energy storage device, so that the transmission ions can be transmitted in the first structure and the second structure to form an internal loop; meanwhile, due to the existence of oxidizing substances and reducing substances, when the oxidizing substances undergo reduction reactions and the reducing substances undergo oxidation reactions, an oxidation-reduction potential difference can be formed; since the oxidation reactions and the reduction reactions continuously proceed, the oxidation-reduction potential difference can be continuously provided, and when an electric signal is outputted based on at least the oxidation-reduction potential difference, the electric signal can be continuously outputted at a high level, so that the energy storage device has a high output power density and good output stability.

A detection device 1 detects breakage of a piping 20 provided with an inner tube 21 through which a reducing substance passes and an outer tube 22 having a region 32 in a substantially vacuum state between the inner tube 21 and itself. The detection device 1 is provided with a gas sensor 2 disposed between the inner pipe 21 and the outer pipe 22, and a determination part 11 that determines which of the inner pipe 21 and the outer pipe 22 is broken on the basis of the output of the gas sensor 2.

The present invention discloses a method for synthesizing a metal oxide material, which belongs to the field of oxide materials. The method comprises the following steps: first, selecting metal salts corresponding to five or more metal elements, and dissolving the metal salts in a reducing substance containing a hydroxyl functional group until the metal salts are completely dissolved to form a solution; the metal elements range from Li, Na, K, Mg, Ca, Al, Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Cd, Sn, Cs, La, Ba, Ce, Nd, W, Re, Ir, Pt, and Bi; second, adding tannic acid as a reducing agent to the solution to form a mixed solution; and third, adding a base to the mixed solution for reaction to obtain a multi-element amorphous metal oxide. The present invention can produce a multi-element amorphous metal oxide with low cost, simple and easy operation, short production cycle, and low energy consumption.

To provide a production device for a carbon material, a production system for a carbon material, and a production method for a carbon material that make it possible to efficiently produce a carbon material from carbon dioxide. One aspect of the present invention provides a production device for a carbon material. The production device comprises a first reaction unit that produces carbon monoxide from carbon dioxide, a second reaction unit that produces a carbon material from carbon monoxide, and a gas line that connects the first reaction unit and the second reaction unit. The first reaction unit has at least one reactor that contains a reducing agent. By contact with a starting material gas that includes carbon dioxide, the reducing agent reduces the carbon dioxide to carbon monoxide and is oxidized, and by contact with a reducing gas that includes a reducing substance, the oxidized reducing agent is reduced.

The invention discloses a method for determining calcium 6S-5-methyltetrahydrofolate in a milk system through high performance liquid chromatography, experiments prove that degradation of (6S)-5-MTHF-Ca can be blocked and the stability can be improved by jointly using two reducing substances in a sample treatment process, so that the recovery rate of the (6S)-5-MTHF-Ca is improved, and the method is suitable for industrial production. The average recovery rate of the (6S)-5-MTHF-Ca enhanced modified milk is 97.8%, the RSD is 0.56%, the average recovery rate of the (6S)-5-MTHF-Ca enhanced milk powder is 97.9%, the RSD is 0.42%, the recovery rates in CN116718714A in the prior art are 85.57%, 86.78% and 84.78%, the average recovery rate is 85.81%, and the RSD is 1.17%, and obviously, the recovery rate of the method is obviously higher than that of a contrast file and reaches the optimal value.

The invention belongs to the technical field of nano-enzymes, and particularly relates to a preparation method of a gold magnetic nano-enzyme and a method for enhancing the catalytic activity of the gold magnetic nano-enzyme, citric acid is added into an aqueous dispersion of Fe3O4, uniform mixing is performed, and citric acid modified magnetic Fe3O4 nano-enzyme is obtained; and adding the citric acid modified magnetic Fe3O4 nano-enzyme into a solution with a reducing substance, uniformly mixing to obtain a dispersion liquid, adding a compound containing a gold element, heating to a boiling point until the solution becomes brown yellow from black, performing centrifugal washing and magnetic separation, and re-dispersing the obtained brown yellow substance into water to obtain the gold-magnetic cascade nano-enzyme. The prepared gold-magnetic cascade nano-enzyme has cascade catalytic reaction activity.

To provide an electrochemical device capable of synthesizing a carbonyl compound with high selectivity.SOLUTION: An electrochemical device 10 electrochemically synthesizes a carbonyl compound, and includes a first electrode 11, a second electrode 12, a first electrolytic part 21 having the first electrode 11, a reaction part 31, and a first connection path 41 connecting the first electrolytic part 21 and the reaction part 31. The first electrolytic part 21 has a first redox species, the reaction part 31 has a second redox species, and the standard oxidation-reduction potential of the first redox species is positively larger than the standard oxidation-reduction potential of the second redox species.SELECTED DRAWING: Figure 1

This invention discloses a rapid visual identification method and kit for the vintage of buckwheat liquor based on a dual-channel colorimetric reaction. Addressing the issue of counterfeit vintage in buckwheat liquor, it sets up two independent detection channels: the first channel uses a solid-phase extraction column with a mixture of polyamide and uncapped C18 filler or uncapped C18 filler to remove flavonoid interference, controlling the sample flow rate through the column at 0.8~1.2 mL / min, and uses a p-toluenesulfonic acid-p-dimethylaminobenzaldehyde solid colorimetric strip to detect the aging year of the base liquor for 2~5 minutes; the second channel uses ferric chloride-potassium ferricyanide colorimetric paper to detect the aging time based on the negative correlation between reducing substances and bottle storage time. The dual-dimensional results comprehensively determine the authenticity of the vintage label. This invention is safe to operate, provides intuitive results, and offers strong anti-counterfeiting features with dual verification, making it suitable for various scenarios such as consumer self-inspection, liquor company quality control, and market supervision.

The invention belongs to the field of gas detection, and relates to a combined detection tube for detecting the concentration of carbon monoxide in blood. The device is composed of the sample adding pipe and the detection pipe, the filler section arranged in the sample adding pipe can effectively destroy red blood cells to release CO gas under the action of a Cr (VI) / Cr (III) oxidation-reduction system, meanwhile, glutathione (GSH), ascorbic acid and other reducing substances in blood are removed through the interference removing section, and the detection specificity and accuracy are remarkably improved. An indicating glue section in the detection tube adopts a platinum-selenium compound and potassium iodate system, a chromogenic reaction is carried out in the presence of CO: I2O5 + 5CO-> I2 + 5CO2, the generated iodine elementary substance presents a brown chromogenic zone, and the length of the chromogenic zone is positively correlated with the concentration of HbCO, so that the visual quantitative analysis of the content of the carbon-oxygen-hemoglobin in the blood is realized.

The application provides a preparation method and application of Prussian blue and activated carbon-Prussian blue material. The preparation method of the Prussian blue comprises the following steps: adding a reducing agent to an aqueous solution containing ferricyanide complex for reduction treatment, so that the ferricyanide complex is reduced into ferrocyanide, and a ferrocyanide solution containing ferrocyanide and other reducing substances is obtained; adding a first iron salt solution to the ferrocyanide solution for de-reduction treatment, so that the other reducing substances contained in the ferrocyanide solution are removed, and a ferrocyanide ferrous carbonate precipitate and a post-precipitation liquid containing ferrocyanide are obtained through solid-liquid separation; and adding a second iron salt solution to the post-precipitation liquid for post-treatment, so that the ferrocyanide reacts with iron ions to obtain a Prussian blue slurry. The preparation method provided in the examples of the application can reduce the impurity content of the Prussian blue, improve the purity of the Prussian blue, and is beneficial to the preparation of activated carbon-Prussian blue material with better energy absorption performance.

The application discloses a color developing agent stabilizer and a stabilizing method. The application provides a color developing agent stabilizer, which comprises a reducing substance and a weak acid buffer. The pH of the weak acid buffer is 3.8-6.2. The reducing substance is one or more of sodium sulfite, sodium bisulfite, sodium thiosulfate or 1-mercapto glycerol. The color developing agent is one or both of a phenothiazine color developing agent or a triphenylmethane color developing agent. The color developing agent can be stably stored by using the stabilizer. The method for stably storing the color developing agent is to dissolve the color developing agent in the stabilizer. The color developing agent can be stably stored in the stabilizer for two weeks, and the stabilizer does not have an inhibiting effect on the subsequent use of the color developing agent. The application not only solves the problems of low stability and spontaneous color development of the color developing reagent, but also avoids the influence of the stabilizer on the performance of the color developing agent, and provides a new method for storing the color developing agent.

The present application provides a kind of hydrogenation catalyst and its preparation method.The hydrogenation catalyst of the present application includes noble metal and the carrier of supporting the noble metal, wherein the carrier is modified by polyhydroxy reducing substance.The preparation method of the hydrogenation catalyst of the present application includes: (1) the carrier is impregnated in the polyhydroxy reducing substance, or the carrier is impregnated in the solution containing the polyhydroxy reducing substance, and the modified carrier is obtained after drying;(2) the obtained modified carrier is impregnated in the solution containing noble metal precursor and heated to react, and the product is dried to obtain the hydrogenation catalyst.The present application also provides the use of hydrogenation catalyst in the hydrogenolysis reaction of α, α-dimethylbenzyl alcohol and the reaction of preparing isopropylbenzene by hydrogenation of α-methylstyrene.

The invention relates to the technical field of flux-cored wires, and discloses a high-temperature-oxidation-resistant stainless steel flux-cored wire and application thereof. By adding the Ti element into the 409L stainless steel flux-cored wire, the 409L stainless steel flux-cored wire has good high-temperature corrosion resistance and better strength requirements. However, the Ti element is strong in activity and extremely easy to oxidize and burn, and the weight percentage of the Ti element required by weld cladding metal in the standard is very difficult to reach. In order to solve the problems, the invention provides the high-temperature-oxidation-resistant stainless steel flux-cored wire, by adjusting the components and formulas in the components of the steel strip and the flux core of the welding wire and combining the synergistic effect of Ti, Al compounds, metal reducing substances and the like in the components of the flux-cored wire, on one hand, the content of the Ti element in a welding seam is increased, and on the other hand, the high-temperature-oxidation-resistant stainless steel flux-cored wire is obtained; and on the other hand, Al is preferentially oxidized in the high-temperature welding process, so that the content of a weld cladding metal Ti element is increased, and the high-temperature oxidation resistance of the weld is remarkably improved.

The application discloses a harmless treatment method and treatment system for magnesium slag, which comprises the following steps: utilizing the residual heat and / or external heat of the magnesium slag, and performing an oxidation decarburization reaction on the magnesium slag in the presence of oxygen-containing gas; the oxygen content of the oxygen-containing gas is greater than or equal to 15 wt%; the volume of the oxygen-containing gas is 50 to 100 times of the volume of the magnesium slag; and the temperature of the oxidation decarburization reaction is greater than or equal to 500 DEG C. The method can effectively utilize the residual heat of high-temperature magnesium slag to perform the oxidation decarburization, solve the problem that strong reducing substances, residual carbon and other impurities are enriched in the magnesium slag due to the magnesium smelting process, especially the magnesium smelting raw material, and the toxic and harmful gases such as CO, H2S and CH4 are released in the resource utilization process of the magnesium slag, effectively accelerate the rapid decomposition of the impurities such as residual carbon in the magnesium slag, obtain homogeneous impurity-removed magnesium slag, improve the utilization level and efficiency of the magnesium slag, and promote the large-scale utilization of the magnesium slag.

To provide a carbon material manufacturing apparatus, a carbon material manufacturing system, and a carbon material manufacturing method that can efficiently produce carbon materials from carbon dioxide. [Solution] According to one aspect of the present invention, an apparatus for producing carbon materials is provided. This apparatus comprises a first reaction unit for producing carbon monoxide from carbon dioxide, a second reaction unit for producing carbon materials from carbon monoxide, and a gas line connecting the first reaction unit and the second reaction unit. The first reaction unit has at least one reactor containing a reducing agent. The reducing agent is brought into contact with a raw material gas containing carbon dioxide to reduce carbon dioxide into carbon monoxide and is also brought into an oxidized state, and the oxidized reducing agent is reduced by contact with a reducing gas containing a reducing substance.

The invention belongs to the technical field of circulating water quality monitoring, and provides an automatic feeding method and system for a circulating water oxidizing bactericide, which are used in a circulating water system and are used for monitoring an ORP (oxidation reduction potential) detection value and a residual chlorine detection value in real time and adjusting automatic feeding of the oxidizing bactericide according to the ORP detection value and the residual chlorine detection value. By means of the technical scheme, accurate control over the feeding amount of the oxidizing bactericide is achieved, so that continuous and stable operation of a circulating water system is maintained, the automatic feeding efficiency of the oxidizing bactericide of circulating water is improved, the using amount of the oxidizing bactericide is reduced, and the phenomenon of equipment corrosion caused by abnormal conditions such as leakage of reducing substances is reduced.

The invention discloses a high-pressure leaching system and method based on carbon dioxide and oxygen, and the high-pressure leaching system comprises a carbon dioxide injection device, a high-pressure oxygen injection device and a high-pressure liquid injection device, the carbon dioxide injection device is connected with the liquid injection pipeline through the carbon dioxide gas conveying pipeline and the liquid carbon dioxide conveying pipeline, one end of the liquid injection pipeline is connected with the water storage tank, and the other end of the liquid injection pipeline is connected with the injection well. The other ends of the carbon dioxide gas conveying pipeline and the liquid carbon dioxide conveying pipe are connected with a liquid carbon dioxide storage tank, the high-pressure oxygen injection device comprises a high-pressure oxygen conveying pipeline, one end of the high-pressure oxygen conveying pipeline is connected with the liquid oxygen storage tank, and the other end of the high-pressure oxygen conveying pipeline is connected with an injection well. Gaseous or liquid carbon dioxide is injected at high pressure, the acidity of underground water is increased, mineral corrosion and uranium complexing are accelerated, uranium-containing minerals and reducing substances can be rapidly oxidized by injecting oxygen at high pressure, and the leaching rate of uranium is increased.