17 results about "Iodine vapor" patented technology

The invention discloses a multi-stage leaching purification method of a targeted therapeutic drug. The multi-stage leaching purification method comprises the following steps: sequentially filling an adsorption column with a porous organic polymer layer and an adsorption ball layer; controlling the flow rate of the leacheate and the column temperature for leaching, and setting an adsorption saturation threshold value; carrier gas is adopted to heat and desorb the porous polymer layer, and carrier gas components are switched to heat and desorb the adsorption ball layer; the method comprises the following steps: introducing carrier gas carrying iodine vapor into an alkaline absorption tower to treat waste gas, eluting impurities of adsorption balls by adopting an acidic mixed solution, and performing catalytic degradation by combining ultraviolet light; a chelating agent solution is used for regenerating adsorption balls, a silver salt solution is used for heavily loading silver ions, an organic solvent is used for eluting and regenerating a porous polymer, regular calibration and part replacement are conducted on a system, and organic pollutants and radionuclides in a matrix are difficult to treat synchronously through a traditional single-layer adsorption material; according to the leaching purification method, the generation amount of radioactive waste liquid is remarkably reduced, and meanwhile the shielding protection requirement of the follow-up purification step is reduced.

A flow containing iodine (I2) vapor and at least one of an inert gas and water vapor. One method for recovering iodine (I2) is to bring the flow into contact with an alkaline solution to form an iodide salt. To achieve, to bring the flow into contact with the adsorbent and selectively adsorb water from the flow, to concentrate the flow By contacting it with an acid, water vapor is absorbed from the flow, or iodine (I2) vapor is back sublimated or Condensing to form solid or liquid iodine (I2), or bringing the flow into contact with the material Furthermore, among the absorption of latent heat and sensible heat by a material through its phase change, When performing at least one of the following, iodine (I2) vapor is condensed or backsublimated from the flow. It can include the following:

The present application relates to a kind of preparation methods of COFs iodine vapor electrochemical sensor based on redox activity, which comprises adding COFs with redox activity into methanol, obtaining a mixture, transferring the mixture into the active area of interdigital electrode, evaporating solvent by heating, and obtaining iodine vapor electrochemical sensor.The iodine vapor electrochemical sensor of the present application has high stability, high selectivity and high sensitivity.When air mixed with iodine vapor passes through the electrochemical sensor, iodine is captured by the polymer film.Based on redox reaction, the impedance of the electrochemical sensor decreases rapidly, and iodine vapor can be detected sensitively and quickly.The preparation is simple, the cost is low, the process is simple and easy to produce, and the adsorption capacity is high, etc., and has good application prospect in the field of iodine vapor sensing technology, etc.

The invention discloses a high-temperature corrosion environment deformation testing device which comprises a rack, a kettle cover is arranged on the rack, a supporting assembly is arranged at the bottom of the kettle cover, a tubular sample is installed on the supporting assembly in a sleeving mode, a tubular fragile mandrel is placed in the tubular sample, a pressing assembly penetrating through the kettle cover is arranged in the rack, and the pressing assembly penetrates through the kettle cover. The bottom end of the pressing assembly is inserted into the tubular fragile mandrel and enables the tubular fragile mandrel to be broken. The device has the beneficial effects that the supporting assembly, the first steam channel, the pressing assembly, the second steam channel and the tubular fragile mandrel are adopted, so that the testing accuracy is improved when a material is subjected to a deformation test; by adopting the positioning ring groove, when the tubular sample is pressed by the elastic pressure plate, the tubular sample is positioned by the positioning ring groove, so that the tubular sample is more stable, and further, the iodine vapor is not easy to leak.

This invention belongs to the field of nuclear reactor target safety design, specifically relating to a method and system for calculating the internal pressure of a target based on the amount of tellurium compound. The method first determines the required core data; based on the mass and density of the tellurium compound, the effective volume of iodine vapor inside the target is calculated, where the effective volume is the internal volume of the target minus the volume occupied by the tellurium compound; based on the mass of the tellurium compound, the tellurium element mass fraction, and the number of iodine molecules generated per unit mass of tellurium element, the total amount of iodine vapor is calculated; based on the ideal gas law, the internal pressure of the target is calculated using the total amount of vapor, the gas constant, the operating temperature, and the effective volume. This invention establishes a dynamic correlation between the amount of tellurium compound and the effective volume, clarifies the mass conversion relationship between Te and the tellurium compound, and constructs a high-precision I-131 target internal pressure calculation model, possessing significant engineering application value and theoretical innovation significance.

The invention relates to the technical field of electric propulsion tests, and provides an iodine vapor collecting device which comprises a refrigeration cabinet, a heat transfer medium and a collecting pipeline. The refrigeration cabinet comprises a bottom box and a cover plate, the cover plate covers the bottom box, the heat transfer medium is arranged in the bottom box, and the bottom box has a refrigeration function so that the heat transfer medium can be maintained in a low-temperature state in which iodine vapor can be condensed; the collecting pipeline is of a U-shaped structure. The refrigeration cabinet and the heat transfer medium are used for providing a low-temperature environment for the collection pipeline where the iodine vapor is located, iodine vapor desublimation collection is achieved, and the device is simple, easy to achieve, convenient to assemble and disassemble, capable of rapidly providing the low-temperature environment and capable of achieving adjustment of the environment temperature; the iodine vapor is collected, so that emission of harmful gas and environmental pollution are avoided, and the iodine working medium electric thruster ground test device has wide applicability and can promote development of an iodine working medium electric thruster ground test.

The application discloses an iodine aerosol alkaline removal experimental device and a sub-region sampling measurement method, relates to the field of air purification experimental equipment, and comprises a spraying experimental tank with a top hemispherical head and a middle cylinder, and a spraying assembly is connected to the top end of the spraying experimental tank; the top end of the spraying experimental tank is also connected with an iodine aerosol distribution assembly; the bottom end of the spraying experimental tank is connected with an iodine vapor injection assembly, which is used for generating iodine vapor from elemental iodine; the side wall of the spraying experimental tank is connected with a gas phase temperature control assembly and an aerosol measurement assembly; the aerosol measurement assembly comprises sampling tubes located in different regions of the spraying experimental tank, and the aerosol measurement assembly measures the behavior characteristics of iodine aerosols in different regions of the spraying experimental tank through the sampling tubes in different regions; and the application can explore the spraying removal effects of iodine aerosols of different safety shell regions, different spraying liquid compositions, different iodine vapor contents and different types of iodine aerosols.

The application discloses a degradable cross-linked polymer material for efficient iodine capture and a preparation method and application thereof. The polymer material is a polyaldehyde group functionalized reaction monomer prepared by one-pot reaction of a lignin source containing aldehyde group phenolic biomass raw material and cyanuric chloride, and a three-dimensional network polymer formed by polycondensation reaction of the polyaldehyde group functionalized reaction monomer and a multi-functionality mercaptan under acidic conditions, namely, the target polymer material of the application. The material does not contain a heterocyclic aromatic macrocycle, and the synthetic route is simple. The nitrogen, oxygen, sulfur and other multiple heteroatom sites in the polymer network have specific high affinity for iodine vapor and iodine trianion, the adsorption capacity of the material for iodine vapor can be more than 3 times of the mass of the material itself, and the removal rate of low-concentration iodine trianion in water is more than 90%. The raw material of the application is renewable, the process is simple, the material has the characteristics of efficient adsorption, easy recovery and degradability, and is suitable for deep purification of radioactive and industrial iodine-containing waste gas and waste water.

The invention discloses a preparation method of a cuprous iodide transparent conductive film. The preparation method comprises the following steps: taking silicon and quartz glass as substrates, and obtaining a copper-zinc alloy film on the surfaces of the substrates through a magnetron sputtering method; the alloy film prepared through the method is high in continuity, compactness and smoothness, and a cuprous iodide film with low surface roughness can be obtained after iodination is conducted. The zinc element in the copper-zinc alloy inhibits the growth of cuprous iodide grains in the iodination process. Compared with a cuprous iodide film not doped with zinc, the prepared CuI: Zn film has the advantages of being continuous and compact, high in surface brightness, weak in light diffusion, high in conductivity and the like. The method is simple and low in cost, and industrial production can be realized.

The application provides a mixed gas recovery system based on iodine vapor and ammonia gas and an application, which comprises a flue gas collecting hood, a recovery device, a porous adsorption mechanism and an exhaust device, the porous adsorption mechanism comprises at least one porous sponge strip, and a plurality of porous sponge strips are arranged longitudinally and transversely in the recovery device; after the mixed gas is discharged into the flue gas collecting hood through the exhaust port of the exhaust device and then flows into the recovery device, the water medium is contacted with the iodine vapor to perform desublimation of the iodine vapor, so that the iodine vapor is converted into iodine crystals, the iodine crystals are adsorbed by the porous adsorption mechanism, the water medium is contacted with the ammonia gas to perform dissolution of the ammonia gas, so that the ammonia gas is converted into ammonia water, the air in which the iodine vapor and the ammonia gas are removed is discharged from the recovery device by the exhaust device, and the recovery of the iodine vapor and the ammonia gas is realized; by the system, the problems that the ammonia gas and the iodine vapor cannot be recovered simultaneously when the IP plate is produced at present, the cost is high when the ammonia gas or the iodine vapor is treated separately, the steps are complex, the environment is not friendly and other problems are solved.

This invention discloses a method for regenerating solid electrolytes, belonging to the field of solid electrolyte technology. The method includes the following steps: S1: Cleaning and drying the surface of the short-circuited solid electrolyte to obtain a cleaned solid electrolyte; placing the cleaned solid electrolyte in a sealed container containing iodine, ensuring that the cleaned solid electrolyte and iodine do not come into contact, and then carrying out a gas-solid reaction in the sealed container; after the reaction is complete, a treated solid electrolyte is obtained; S2: Polishing the surface of the treated solid electrolyte to obtain a regenerated solid electrolyte. In this invention, iodine vapor is used to treat the short-circuited solid electrolyte. The iodine vapor reacts with Li dendrites and lithium carbonate in the short-circuited solid electrolyte to generate LiI, eliminating the lithium dendrites and lithium carbonate inside the short-circuited solid electrolyte, restoring the electrochemical performance of the solid electrolyte, and realizing the regeneration of the solid electrolyte.

The invention discloses a nitrogen ion-rich covalent organic framework material as well as a preparation method and application thereof. According to the method, triaminoguanidine hydrochloride and 2, 2 '-bipyridine-5, 5'-dicarboxaldehyde are taken as raw materials, and the nitrogen ion-rich covalent organic framework material is prepared through imine condensation reaction in a solution under vacuum. The nitrogen-ion-rich covalent organic framework material is simple to prepare and can be used for adsorbing iodine in a gas phase and a solution, the adsorption capacity of the nitrogen-ion-rich covalent organic framework material to iodine steam under the conditions of normal pressure and 77 DEG C is 5.15 gg <-1 >, the adsorption capacity of the nitrogen-ion-rich covalent organic framework material to I3 <-> in a KI / I2 aqueous solution is 2.21 gg <-1 >, and the nitrogen-ion-rich covalent organic framework material shows excellent iodine adsorption capacity in different media.

This invention discloses an iodine-131 isotope polymer-based oil displacement logging microsphere and its preparation method. Step one: Iodine source is converted into iodine vapor, which is then contacted with a porous carrier for adsorption, yielding an iodine-loaded carrier. Step two: Iodine source is converted into iodine vapor, which is then contacted with the porous carrier for adsorption, yielding another iodine-loaded carrier. The iodine-loaded carrier is mixed with a hydrophilic polymer solution and shaped by spray granulation to obtain microsphere embryos. This invention employs a vapor-phase adsorption method, allowing iodine to form a Si–O–I covalent bond with the silanol groups on the surface of diatomaceous earth in a zero-valent atomic state, achieving chemical anchoring. This chemical bond remains stable under high temperature and pressure, effectively inhibiting iodine desorption. Simultaneously, the porous structure of diatomaceous earth provides abundant reaction sites, significantly increasing the chemical adsorption capacity.

The application discloses a recovery system and recovery method for iodine in trifluoroiodomethane production, and the recovery system comprises a heating device, a condensing device, an alkali washing device and a washing device, wherein the heating device is provided with a gas inlet for receiving trifluoroiodomethane production tail gas; the condensing device is communicated with the heating device; the alkali washing device is communicated with the heating device; the washing device is communicated with the condensing device and the alkali washing device; a pipeline assembly comprises a liquid-phase pipeline and a gas-phase pipeline, the liquid-phase pipeline is communicated with the bottom of the heating device and the condensing device, and the gas-phase pipeline is communicated with the top of the heating device and the alkali washing device; a switching assembly comprises a first switching piece and a second switching piece, the first switching piece is arranged on the gas-phase pipeline to open or close the gas-phase pipeline, and the second switching piece is arranged on the liquid-phase pipeline to open or close the liquid-phase pipeline. The alkali washing device is used for removing HF in the tail gas, the condensing device is used for recovering iodine, and the washing device is used for removing trace iodine vapor, so that the iodine can be recovered, the consumption of iodine is greatly reduced, and the operation is simple and good in effect.

The invention relates to the technical field of high polymer materials, and discloses a twisted perylene core-based conjugated microporous polymer material and a preparation method thereof, the polymer material takes a twisted perylene core derivative Per-OC4H9-Ar-4CHO as a first monomer, takes aromatic diamine as a second monomer, and forms a microporous polymer skeleton with a-C = N-conjugated structure through Schiff base reaction; the polymer material is a yellow solid and has permanent microporosity, the minimum pore diameter of the polymer material is 0.67 nm, and the polymer material has solid-state fluorescence response characteristics under excitation of the wavelength of 365 nm and can adsorb and detect iodine in iodine steam and an aqueous solution. The fluorescent characteristic of the twisted perylene core and the structural advantage of the conjugated microporous polymer are combined to construct the high polymer material with dual functions of adsorption and detection, and specific fluorescence detection can be performed on iodine in an aqueous solution by virtue of the solid-state fluorescent response characteristic of the high polymer material, so that the situation that the traditional material has a single adsorption or detection function is broken through.

The utility model discloses an industrial crude iodine purification device relates to the field of chemical equipment. A kind of industrial crude iodine purification device, including base, oil bath pan is fixedly installed on the base, the bottom of oil bath pan is fixedly installed with electric heater, further include: bearing tank, by fixed plate suspension installation in the oil bath pan, the tank mouth of the bearing tank is detachably connected with tank cover, and the tank cover is connected with feeding valve pipe;The utility model can construct stable high-temperature environment for iodine vapor in conveying pipe under the double heat preservation effect of heat preservation cover and heating gas, the hot gas flowing in heat preservation cover, continuously supplement heat, avoid the iodine vapor sublimation in advance caused by temperature deficiency in conveying, ensure that iodine vapor reaches cooling pipe in gaseous state, guarantee the continuity of subsequent sublimation operation, improve pure iodine output efficiency.

The application discloses a manganese-based gas adsorption material and a preparation method and application thereof, and belongs to the technical field of solid adsorbents. The manganese-based gas adsorption material is obtained by heating and reacting a sulfur source and a manganese salt in hydroxyethyl ethylenediamine to obtain slurry, and then separating the slurry with water, filtering and drying the obtained solid powder. 2‑ I2 is reduced into I ‑ , and I ‑ reacts with the manganese ion in the manganese-based sulfide to generate iodine salt, so that adsorption of radioactive iodine is realized, efficient removal of iodine vapor can be realized under different iodine vapor concentrations (as low as 400 ppm) and in a wide temperature range (25-75 DEG C), and there is no desorption of iodine due to long-term standing; meanwhile, the manganese-based gas adsorption material can also be used for adsorption of iodomethane and CO2 gas. The preparation method of the manganese-based gas adsorption material is simple, the preparation conditions are mild, the preparation cost is low, the yield is high, and the manganese-based gas adsorption material is easy to produce on a large scale and has great potential for commercial application.