37 results about "High iodine" patented technology

The utility model discloses a catalytic hydrogenation reactor for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle internal part in the catalytic hydrogenation reactor, on one hand, the ceramic tube bundle internal part serves as a reaction assembly and has certain acid corrosion resistance, and on the other hand, the ceramic tube bundle internal part serves as a solid catalyst carrier, selective hydrogenation of high-acid-value and high-iodine-value biomass raw materials is achieved, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw materials in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The present invention relates to the technical field of electrode materials, and specifically to a wide-temperature-range high-iodine-loaded positive electrode material, a preparation method thereof, and a zinc-iodine battery. Activated carbon and iodine element are mixed and then subjected to a heat treatment to sublime the iodine element and embed it into the activated carbon, thereby obtaining iodine-loaded carbon black I2@CB; gelatin and acetic acid solution are mixed to obtain a gelatin binder solution; iodine-loaded carbon black I2@CB, a conductive agent, and the gelatin binder solution are mixed to obtain an iodine positive electrode slurry; the iodine positive electrode slurry is coated on a stainless steel mesh and dried to obtain a wide-temperature-range high-iodine-loaded positive electrode material. The wide-temperature-range high-iodine-loaded positive electrode material prepared by the present invention effectively suppresses the problems of active iodine dissolution and polyiodide shuttling by utilizing the active functional groups of gelatin in the gelatin binder solution, such as peptide bonds, carboxyl groups, and amino groups, to restrain active iodine and chemically adsorb polyiodides.

The present invention belongs to the technical field of preparation of adsorbent materials, and specifically relates to a heat-resistant Bi / Mg oxide for high-temperature iodine capture, and its preparation method and use. The preparation method comprises the following steps: bismuth salt and magnesium salt are dissolved in water and mixed uniformly to obtain a mixed solution A; under stirring, citric acid is added to the mixed solution A, ethylene glycol is added to obtain a uniform mixed solution B; mixed solution B is stirred and preheated at 70-80°C, and then hydrothermally reacted at 120-140°C; the product obtained by the reaction is centrifuged, washed with deionized water, and dried, and Bi / Mg oxide is obtained after calcination. The obtained Bi / Mg oxide improves the thermal stability at high temperature (600-800°C), and this heat resistance makes the Bi / Mg oxide material have a high iodine capture performance of 367.72-528.87mg / g after 10h at 200°C, and the iodine capture capacity reaches 584.8mg / g after 26h at 200°C.

The invention relates to the technical field of grease chemical industry, and discloses high-iodine oleic acid and a preparation method thereof.The preparation method comprises the steps that waste grease is pretreated; adding a polar modifier into supercritical CO2 to selectively extract oleic acid; adding a polar accelerant compound system into the supercritical system to carry out iodination reaction; refining and separating the product through pressure gradient; and establishing a circulating reiodination system, and returning medium and low iodination products to the iodination step for continuous reaction through a supercritical phase back-mixing technology and precise iodine source addition. According to the method, the oleic acid extraction selectivity coefficient is increased by 40-60% by introducing the polar modifier, the iodination reaction rate is increased by 50-80% through a polar accelerant compounding system, the total yield is increased to 75-85% from 60-70% through a circulating reiodination system, the product purity reaches 95-98%, high-value utilization of the waste grease is achieved, the production cost is greatly reduced by 40-60%, and the method is suitable for industrial production. No organic solvent is left, and the method is environment-friendly.

The invention relates to the technical field of zinc-iodine batteries, and provides preparation of a high-iodine-loading nitrogen-oxygen double-doped carbon material composite positive electrode and application of the high-iodine-loading nitrogen-oxygen double-doped carbon material composite positive electrode in a zinc-iodine battery. A working electrode with a high iodine loading capacity PONC / I2 composite material (PONC / I2) as an active substance is prepared, nitrogen-oxygen double-doped hierarchical porous carbon (PONC) is prepared by taking polydopamine gel as a precursor and performing high-temperature calcination, and multi-dimensional optimization of'pore structure and double-element synergy 'is combined. The strong interface chemistry brought by the rich N / O dopant on the hierarchical porous structure enhances the adsorption of iodine substances, realizes the high load of iodine, promotes the catalytic conversion kinetics of iodine and polyiodide, and relieves the capacity fading caused by the shuttle effect of the polyiodide intermediate. The capacity of the prepared positive electrode material is still kept at 60-80mAh g <-1 > after the positive electrode material is circulated for 65000 times at the current density of 10A g <-1 >, and the positive electrode material has excellent rate capability and long cycle stability.

The invention discloses a preparation method of a stannous sulfide-mesoporous silica material for adsorbing radioactive iodine, which comprises the following steps: dissolving stannous chloride dehydrate, thiourea and PEG (polyethylene glycol) 1500 in a mixed solution of absolute ethyl alcohol and ethylene glycol, then adding mesoporous silica, heating and stirring to obtain a mixed solution; transferring the obtained mixed solution into a hydrothermal reaction kettle, carrying out hydrothermal reaction, then naturally cooling to room temperature, and washing to obtain the stannous sulfide-mesoporous silica material adsorbing radioactive iodine. The invention develops a novel efficient radioactive iodine adsorption material which has the advantages of low cost, high iodine adsorption capacity, easiness in macro preparation and the like, and a new material and a new method are provided for radioactive gaseous iodine treatment.

The invention provides a conjugated microporous polymer porous composite hydrogel material based on interface evaporation coupling adsorption as well as a preparation method and application thereof. According to the material, hollow CMPs microspheres are synthesized through a Sonogashira-Hagihara reaction, the hollow CMPs microspheres are embedded into a hydrogel matrix after carbonization and hydrophilic modification, a composite structure with graded pore channels is formed, the composite structure has high iodide ion adsorption capacity and efficient interface evaporation performance, and pollutant adsorption and purified water recovery of iodine-containing wastewater can be synchronously achieved. Adsorption and photo-thermal evaporation technologies are coupled, pollutant capture and solar-driven water purification are synchronously completed through a pi conjugated structure of CMPs, and the problems that purified water cannot be produced through a traditional adsorption method and volatile pollutants cannot be treated through an evaporation technology are solved.

The invention discloses a method for recovering elemental iodine from perfluoroalkyl iodide, which comprises the following steps: (1) mixing perfluoroalkyl iodide and an alkaline solution to form a reaction solution, and heating and stirring to form a deiodinated solution; (2) adjusting the pH value of the deiodinated solution to 6-7 by using an acidic solution, and distilling to obtain an inorganic iodized salt solid; and (3) adding water to dissolve the inorganic iodized salt solid to obtain an inorganic iodized salt solution, adding an acidic solution to maintain the pH value to be strongly acidic, adding an oxidizing agent to carry out an oxidation-reduction reaction, filtering and separating to obtain wet iodine, and drying and dehydrating to obtain the iodine simple substance. The method is used for treating perfluoroiodo alkane which is high in iodine content and difficult to treat, an alkaline solution is adopted for reacting with perfluoroiodo alkane for deiodination, the deiodination solution is subjected to acidification and oxidation reaction to prepare high-purity iodine simple substance, and the iodine simple substance can be directly used as a product to be applied to production of iodine-containing compounds.

To provide a polarization film having a polarization membrane with high iodine concentration, good at an initial polarization degree, excellent in a restrictive effect to a single transmittance deterioration by a coloring of the polarization membrane under a high-temperature environment, and furthermore, excellent in a restrictive effect (humidification durability) to a polarization degree deterioration under a high-temperature high-humidity environment.SOLUTION: A polarization film includes a transparent protective film bonded on both sides of a polarization membrane. The polarization membrane is formed with an iodine sucked and oriented onto a polyvinyl alcohol film, with an iodine concentration of 6 wt.% or more. At least one transparent protective film has a moisture vapor permeability of 200 g / (m2 24h) or less, and the polarization film satisfies a condition of a change rate (ΔTs) 0% to 5%, inclusive, with regard to a single transmittance expressed by a general formula (1): ΔTs(%)=Ts750-Ts0.SELECTED DRAWING: None

This invention provides a polarizing film formed by adsorbing iodine onto a polyvinyl alcohol film and orienting it. The polarizing film has an iodine content exceeding 10% by weight, a monomer transmittance of less than 41%, and, in gas analysis, under conditions of inert gas presence, a heating rate of 10°C / min, and a heating range of 40°C to 350°C, the peak temperature of the maximum intensity of water detected by the polarizing film is above 175°C. This polarizing film has a high iodine content, an initial monomer transmittance of less than 41%, and excellent performance in suppressing the decrease in monomer transmittance caused by coloration of the polarizing film in high-temperature environments.

This invention discloses a method for iodine recovery and reuse during the preparation of tetrachlorohexafluorobutane, comprising the following steps: S1, preparing trifluorodichloroiodoethane using refined iodine and trifluorochloroethylene as raw materials, and preparing a tetrachlorohexafluorobutane reaction solution using trifluorodichloroiodoethane as raw material; S2, adding water to the tetrachlorohexafluorobutane reaction solution to obtain a soluble solution, oxidizing, filtering, and refining the aqueous phase to obtain refined iodine, and distilling the organic phase to obtain refined tetrachlorohexafluorobutane, an organic solvent containing iodine and zinc iodide, and an organic iodide; S3, washing the organic solvent containing iodine and zinc iodide with an absorbent to obtain an iodide ion aqueous solution, which is then oxidized, filtered, and refined to obtain refined iodine; the organic iodide is catalytically chlorinated to obtain iodine chloride, which is used to prepare trifluorodichloroiodoethane. The entire process of this invention is rapid, environmentally friendly, and has a high iodine recovery rate, making it suitable for large-scale industrial production.

The application discloses a kind of preparation and application of multi-level hole full-silica zeolite limited copper-bismuth Janus nanoparticle adsorbent, comprising: copper salt and bismuth salt are dissolved in dilute nitric acid solution and then added into deionized water, to obtain bimetallic salt solution;Metal salt solution is added to the raw material for synthesizing full-silica zeolite to pre-crystallize, to obtain gelatinous solution;The obtained gelatinous solution is moved into reaction kettle to carry out hydrothermal crystallization;The obtained sample is filtered, washed, dried, and calcined under inert gas protection, to obtain multi-level hole full-silica zeolite limited copper-bismuth Janus nanoparticle adsorbent.The adsorbent prepared in the application has a multi-level hole structure of microporous-mesoporous, which can avoid oxidation and loss of metal particles during the adsorption process, and the adsorbent is applied to remove radioactive iodine gas, showing high iodine adsorption capacity, and reacting with iodine molecules to form thermodynamically stable CuI and BiI3, further improving the iodine solidification capacity of the adsorbent.

The present invention discloses an iodine-containing energetic compound based on a pyrazole ring, which is a mono-pyrazole ring compound with multiple iodine and multiple nitro groups or a bicyclic energetic compound connected by a C-N bond, having a high iodine content, high detonation performance and excellent mechanical sensitivity. The present invention also discloses a method for preparing an iodine-containing energetic compound based on a pyrazole ring, which uses a nitro- or iodine-substituted pyrazole ring as a raw material, and synthesizes an iodine-containing monocyclic energetic compound based on a pyrazole ring through iodination and nitration reactions respectively; then modifies the N position of the monocyclic energetic compound to introduce different polynitro heterocycles to obtain several iodine-containing energetic compounds based on a pyrazole ring that exhibit excellent mechanical sensitivity and detonation performance, providing a new idea for the design and synthesis of iodine-rich energetic bactericidal materials.

The invention provides a preparation method of activated carbon with a high iodine value and a high specific surface area, and belongs to the technical field of coal-based activated carbon. According to the method, a KOH and water vapor physical and chemical activation method is adopted, and the alkali-carbon ratio is reduced to 1.5: 1 by introducing water vapor to assist activation, so that the problems of over-high economic cost and equipment corrosion caused by over-high alkali-carbon ratio in an existing activated carbon preparation method are solved. In the application, when only KOH is used as the activating agent, the specific surface area of the activated carbon prepared under the condition that the alkali-carbon ratio is 1.5: 1 reaches 1034.1 cm < 2 > / g, and the iodine adsorption value reaches 1427.2 mg / g. When KOH and K2CO3 mixture is used as an activating agent, KOH is partially replaced by K2CO3, the alkali-carbon ratio is kept at 1.5: 1, and the specific surface area of the activated carbon prepared under the condition that the alkali composition is KOH: K2CO3 = 5: 1 reaches 1214.3 cm < 2 > / g, and the iodine adsorption value reaches 1578.4 mg / g. And a mixture of KOH and K2CO3 is used as an activating agent, so that the use of KOH is further reduced, the corrosion to instruments and equipment is reduced, the method is environment-friendly, and the production cost is saved.

The invention relates to the technical field of small-molecule contrast agents, in particular to a small-molecule contrast agent and a preparation method thereof. The structure is shown in the specification. According to the micromolecular contrast agent provided by the invention, based on a symmetric skeleton coupled by iohexol dimer and glycosyl, the imaging performance and the stability of the micromolecular contrast agent are superior to those of a traditional micromolecular contrast agent. Compared with clinical classical iohexol, the molecule integrates two iohexol monomers and a glycosyl targeting group, the number of iodine atoms in each molecule is increased to six, and the high iodine content is directly converted into high inherent contrast brightness.

The invention relates to the technical field of microbial fermentation, in particular to a method for preparing leiocassis longirostris oil through salting fermentation. The fish oil is produced by using the leiocassis longirostris viscera as the raw material, and the problem of high-value utilization of by-products such as the viscera in the leiocassis longirostris processing process can be solved. Results of the specific embodiment of the invention show that compared with a cooking method and a salting fermentation method, the fish oil can be rapidly produced without high-temperature heating, and the fish oil is brighter in color and better in quality, mainly has lower acid value, peroxide value, moisture and volatile matter content, higher iodine value and higher unsaturated fatty acid content, and has a wide market application prospect.

The invention relates to the field of adsorption separation, in particular to a novel bipyridyl covalent organic framework material as well as a preparation method and application thereof. The novel dipyridyl covalent organic framework material is prepared by introducing a dipyridyl group into the structure of the covalent organic framework material. The novel bipyridyl covalent organic framework material disclosed by the invention has the advantages of simplicity in preparation, high specific surface area, high porosity, high iodine adsorption performance and reproducibility. The novel bipyridyl covalent organic framework material disclosed by the invention is uniform and stable in structure and beneficial to large-scale adsorption; the iodine adsorption material also has excellent high chemical stability and thermal stability, can be used for iodine adsorption experiments at 75 DEG C, and is suitable for treating related radioactive accidents, environmental pollutants and other problems in practical fields.

The application provides an iodine-doped starch-based carbon material and a preparation method and application thereof, and relates to the technical field of starch-based carbon materials. The method comprises the following steps: mixing starch, an iodine source and a water-soluble dispersant in a solvent, aging, drying and crushing to obtain a purple red to blue purple inclusion precursor; and then performing gradient carbonization treatment in an inert atmosphere to obtain the iodine-doped starch-based carbon material. The application realizes the inclusion and molecular-level anchoring through the van der Waals force between the spiral cavity of the linear starch and the iodine element, and relies on the water-soluble dispersant to form a physical encapsulation layer on the surface of the starch in situ in the low-temperature carbonization stage, cooperates with the high-temperature carbonization process, and inhibits the volatilization of the iodine element to realize the doping of high iodine content. The obtained material is characterized in that the iodine is embedded in the carbon skeleton in a P-pi conjugate state, the conductivity is significantly enhanced, the carrier concentration is improved, and the sodium ion storage capacity is improved, so that the reversible specific capacity is improved and the first circle coulombic efficiency is improved.

The present application relates to a kind of oral microemulsion of high EPA content and its preparation method.The oral microemulsion includes 1%~50% EPA glyceride raw material, 0.1%~10% high iodine value phospholipid (including PC) by weight percentage, other emulsifiers 0.01~10%, the first auxiliary material for assisting EPA liver enrichment 0~10%, other food neutralizing and / or pharmaceutically acceptable raw materials 0~40% and appropriate amount of water, wherein, EPA glyceride raw material provides high content EPA, the first auxiliary material provides liver targeting component and / or PEG modified component.The oral microemulsion provided by the present application can realize the synergistic absorption of EPA and phospholipid, further with the help of the first auxiliary material, EPA entering blood circulation can be reduced by lipoprotein lipase hydrolysis, also can improve the bioavailability of EPA while promoting its enrichment in liver, therefore, can be used for the prevention and / or treatment of fatty liver and other diseases.

To provide a process for producing biogenic activated carbon.SOLUTION: A continuous process for producing biogenic activated carbon comprises countercurrently contacting, by mechanical means, a feedstock with a vapor stream comprising an activation agent including water and / or carbon dioxide; removing vapor from the reaction zone; recycling at least some of the separated vapor stream, or a thermally treated form thereof, to an inlet of the reaction zone(s) and / or to the feedstock; and recovering solids from the reaction zone(s) as biogenic activated carbon. Biogenic activated carbon compositions comprise at least 55 wt% carbon, some of which may be present as graphene, and have high surface areas and high iodine numbers. Some embodiments provide biogenic activated carbon that is responsive to a magnetic field. Methods of using the biogenic activated carbon are disclosed.SELECTED DRAWING: Figure 21

This application discloses a method for preparing a co-crystal iodine adsorbent based on columnar aromatic hydrocarbons, specifically relating to the field of adsorbents. The method includes: co-dissolving columnar aromatic hydrocarbons and a compound containing electron-withdrawing groups in a first solvent to obtain a first mixed solution; allowing the first mixed solution to stand at a preset temperature until blocky crystals precipitate, obtaining a charge-transfer co-crystal. Utilizing the advantages of electron-rich supramolecular macrocyclic columnar aromatic hydrocarbons readily undergoing charge transfer (CT) and possessing intrinsic cavities, the CT interaction between the columnar aromatic hydrocarbons and the compound containing electron-withdrawing groups generates intriguing channels, resulting in high iodine removal efficiency. Furthermore, the chemical composition and assembly structure of this co-crystal are precisely controlled using a macrocyclic host competition method, further improving the adsorption efficiency.

A method for preparing 1,6-hexanedial, the obtained product, and a reaction system, and relate to the technical field of fine chemical synthesis. The method comprises: mixing cyclohexene with a solvent, introducing a gas containing ozone, and reacting cyclohexene with ozone to obtain 1,6-hexanedial under normal pressure and a temperature of 70-20°C; the solvent contains dimethyl sulfoxide and water. The present invention utilizes the high selectivity of the green oxidant ozone to olefin double bonds, and selectively oxidizes cyclohexene in a mixed solvent system to prepare 1,6-hexanedial in one step. The present invention does not need to introduce a precious metal complex and a solid catalyst such as sodium periodate into the reaction system, and the preparation method is simple in process, green, environmentally friendly and pollution-free.

The invention provides an iodine-containing energetic bactericidal compound based on a furazan skeleton as well as a preparation method and application of the iodine-containing energetic bactericidal compound, and belongs to the technical field of energetic materials. The compound comprises any one of the following components: 3, 4-diiodo-1, 2, 5-oxadiazole, 4-diiodo-1, 2, 5-oxadiazole, 4-diiodo-1, 2, 2, 3, 3 '-diiodo-4, 4'-azofurazan; the preparation method comprises the following steps: adding 2, 3 '-diiodo-4, 4'-azoxyfurazan into a reaction kettle; the preparation method comprises the following steps: adding 1, 3-iodo-4-nitramine-1, 2, 5-oxadiazole; by combining the furazan skeleton with high nitrogen and oxygen content with the iodine atom and the energetic group, the detonation performance and enthalpy of formation of the compound are remarkably improved. The compound has high iodine content (more than 45%), high oxygen balance (gt;-8%) and high detonation velocity (up to 6505 m.s), and is suitable for preparing efficient energetic bactericidal materials.

This invention discloses the application of a hetero[3]aromatic crystalline material in the adsorption and separation of a mixture of pyrrolidine and tetrahydrofuran and / or the capture of iodine vapor. It relates to the field of adsorption technology. Firstly, a novel hetero[3]aromatic crystalline material capable of adsorbing and separating pyrrolidine and tetrahydrofuran to achieve iodine capture is synthesized. The application method includes: selectively adsorbing pyrrolidine in a mixture of pyrrolidine and tetrahydrofuran using the novel hetero[3]aromatic crystalline material to obtain a pyrrolidine-hetero[3]aromatic crystalline material, achieving the separation of tetrahydrofuran and pyrrolidine, and capturing iodine vapor using the pyrrolidine-hetero[3]aromatic crystalline material. Compared with other macrocyclic aromatics, this invention not only achieves the separation of tetrahydrofuran and pyrrolidine, but also has advantages such as high iodine adsorption capacity and good thermal stability; at the same time, the synthesis method has advantages such as simple operation, high yield, simple post-processing, and easy separation and purification of the product.

The invention discloses a preparation process of low-ash coconut shell activated carbon, and belongs to the technical field of activated carbon preparation. The process aims to solve the problems of high ash content, environmental pollution caused by strong acid washing and poor mechanical strength of the product in the prior art. Mixing the coconut shell precursor with a choline chloride-urea eutecticevaporate solvent (DES), and carrying out dipping extraction to realize source deliming of the raw materials; then carrying out quantity-controlled separation to obtain a coconut shell precursor with a specific amount of residual DES; the precursor is subjected to two-stage programmed heating pyrolysis in an inert atmosphere, a low-temperature platform is kept at a constant temperature to realize template support by utilizing residual DES and prevent pore collapse, and a high-temperature platform is kept at a constant temperature to realize in-situ slow-release activation by utilizing a DES decomposition product. Through integrated utilization of DES dual functions, coconut shell activated carbon with low ash content (1.8-2.6%), high iodine adsorption value (1100-1250 mg / g) and high mechanical strength (greater than or equal to 96%) is synergistically prepared, and the method is short in process flow and environment-friendly.

The invention discloses an hsa-miR-185-5p primer group, a kit and a method for PTC (Positive Temperature Coefficient) metastasis risk detection in a high-iodine environment, and belongs to the technical field of in-vitro auxiliary evaluation of tumor molecules. The primer group comprises hsa-miR-185-5p, a nucleotide sequence of the hsa-miR-185-5p is as shown in SEQ ID NO. 1; the nucleotide sequence of the U6 upstream primer is as shown in SEQ ID NO. 2; the nucleotide sequence of the U6 downstream primer is as shown in SEQ ID NO. 3; and the nucleotide sequence of the miRNA reverse universal downstream primer is as shown in SEQ ID NO. 4. The invention proves that high iodine is an independent risk factor of PTC lymph node metastasis; it is found that the serum exosome miR-185-5p under high iodine is a PTC LNM specific marker; a detection kit containing an autonomously designed primer group and a standardized detection process are constructed, the kit is clinically adapted, and a non-invasive and accurate auxiliary detection tool is provided for metastasis risk stratification of PTC subjects in high-iodine regions.

The invention discloses application of a benzyltriethyl formic acid eutectic solvent in iodine extraction, and belongs to the technical field of eutectic solvents. The method comprises the following steps: preparing a benzyltriethyl formic acid eutectic solvent from benzyltriethyl ammonium chloride and formic acid under a constant-temperature stirring condition; under the conditions of constant-temperature heating and stirring, iodine is extracted from a cyclohexane solution containing iodine by using a benzyltriethyl formic acid eutectic solvent. The benzyltriethyl formic acid eutectic solvent prepared by the method has the advantages of simplicity in synthesis, low price, good degradability and the like, has relatively strong trapping capability on iodine and high iodine extraction and separation efficiency, and has the iodine extraction efficiency as high as 96.7% under the condition that the mass ratio of the benzyltriethyl formic acid eutectic solvent to a cyclohexane solution containing iodine is 1: 2.

The invention discloses a catalytic hydrogenation reactor and a catalytic hydrogenation method for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle inner part, selective hydrogenation of the high-acid-value and high-iodine-value biomass raw material is realized under the combined action of the solid catalyst and the liquid catalyst, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw material in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The invention relates to the technical field of high-iodine-value activated carbon production, in particular to a high-iodine-value activated carbon preparation auxiliary device convenient for cleaning a filter body, which specifically comprises an upper shell, a lower seat body, an upper cover, a feeding cylinder, a cleaning bracket, an annular cleaning pipe, a first water pump, a water tank and a cleaning water collecting pool, the upper shell is internally provided with two filtering bodies from top to bottom, the two filtering bodies are both located under the feeding barrel, the two filtering bodies are connected with two inlet and outlet mechanisms respectively, the filtering bodies stretch into the cleaning support under the action of the inlet and outlet mechanisms, and the filtering bodies stretching into the cleaning support are located between the annular cleaning pipe and the cleaning water collecting pool. The filtering body can be quickly taken out from the upper shell through the inlet and outlet mechanism and conveyed into the cleaning support to be washed, and the problem that the filtering body is inconvenient to clean is solved.

The invention belongs to the technical field of comprehensive utilization of fluosilicic acid, and particularly relates to a method for extracting iodine from fluosilicic acid, which comprises the following steps: adding an oxidant into a fluosilicic acid solution for reaction, then adding an adsorbent, stirring for adsorption, carrying out solid-liquid separation, and deiodinating the solid adsorbent. The method is simple to operate and high in iodine recovery rate; compared with the conventional activated carbon, the adsorbent containing the fluorinated carbon material has higher iodine adsorption capacity, is corrosion-resistant, can be recycled for multiple times, and is lower in cost. Furthermore, the adsorbent is made into spherical particles, the density of the adsorbent is equivalent to that of a fluosilicic acid solution, and the adsorbent can be uniformly suspended and dispersed in the fluosilicic acid solution, so that the adsorption efficiency on iodine is remarkably improved, the filtration is not blocked, the adsorbent can be returned and reused without regeneration treatment after deiodination, the process steps are greatly simplified, and the method is suitable for industrial application.