17 results about "Iodinated salt" patented technology

A resist composition comprising an acid compound, a photoacid generator of iodonium salt type and / or a photo-decomposable quencher of iodonium salt type, and a base polymer has a high sensitivity, reduced edge roughness or size variation, improved resolution and satisfactory storage stability.

The invention provides an aqueous sodium-iodine dual-ion battery and a preparation method thereof, and belongs to the technical field of secondary batteries. The novel aqueous sodium-iodine dual-ion battery is constructed by taking activated carbon as a positive electrode material, carbon-coated titanium-based phosphate as a negative electrode material and a mixed solution containing iodized salt and sodium trifluoromethanesulfonate as an electrolyte. Sodium trifluoromethanesulfonate is introduced into the electrolyte, water molecules in a Na < + > primary solvation sheath are partially replaced by anion OTf <-> of sodium trifluoromethanesulfonate, a brand new [Na (H2O) 2 (OTf) 4] < + > mixed coordination structure is formed, a Na < + > desolvation energy barrier can be remarkably reduced through structural recombination, a hydrogen bond network among water molecules can be effectively destroyed, and the stability of the electrolyte is improved. Therefore, the ion migration rate is obviously improved. The water-based sodium-iodine dual-ion battery constructed on the basis has the advantages of high rate, long service life and high safety, and a breakthrough solution is provided for realizing low-cost and large-scale energy storage.

The invention belongs to the technical field of organic synthesis, and discloses a preparation method of acetic acid 2, 2-difluoroethyl ester. The preparation method comprises the following steps: (1) dispersing acetate and an iodized salt catalyst in an aprotic polar solvent to obtain a mixed material 1; (2) dissolving 2-chloro-1, 1-difluoroethane and / or 2-bromo-1, 1-difluoroethane in an aprotic polar solvent, so as to obtain a mixed material 2; and (3) in a normal-pressure reflux reactor, heating the mixed material 1 to a reaction temperature, then dropwise adding the mixed material 2, after dropwise adding is completed, continuing to carry out heat preservation reaction until the reaction is completed, and separating a product to obtain the 2, 2-difluoroethyl acetate. The iodized salt is used as the catalyst for the reaction, so that the conversion rate and the yield of the reaction can be obviously improved. By optimizing a solvent and a feeding mode, the loss of reaction raw materials is reduced, the conversion rate is increased, a high-pressure reaction kettle is not needed for reaction, the requirement on equipment is low, the reaction condition is mild, and industrial production is favorably realized.

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.

The invention discloses a trigonelline metformin salt and a preparation method thereof, and the preparation method comprises the following steps: providing a resin column filled with anion exchange resin, treating the resin column with a salt solution for ion replacement activation to obtain an activated resin column, anions of the salt are chloride ions, bromide ions, acetate ions, malate ions, lactate ions, tartrate ions or citrate ions; enabling the trigonelline metformin iodized salt solution to pass through an activated resin column, and selectively collecting the exchanged solution; and carrying out concentration treatment on the collected exchanged solution to obtain the trigonelline metformin salt. In combination with a specific embodiment, compared with a trigonelline metformin iodate, the solubility of the trigonelline metformin salt prepared by the preparation method of the trigonelline metformin salt provided by the invention in water is greatly improved, so that the application range of the trigonelline metformin salt is greatly expanded.

The application belongs to the technical field of aerospace propellants and energetic materials, and relates to a compounded self-ignition ionic liquid, a preparation method and application. The compounded self-ignition ionic liquid is composed of a self-ignition ionic liquid and a promoter, wherein the self-ignition ionic liquid is cyanoborohydride 1-allyl-3-ethyl imidazole or cyanoborohydride 1-allyl-3-methyl imidazole, and the promoter is 1,3-dimethyl-4,5-diiodo imidazole iodine salt or 1,3-dimethyl-4,5-diiodo imidazole triiodine salt; the self-ignition ionic liquid accounts for 80wt%-95wt%, and the promoter accounts for 5wt%-20wt%. The compounded self-ignition ionic liquid has high density, low viscosity and good thermal stability, and when used in the field of rocket propellants, can achieve good self-ignition effect with H2O2 and fuming nitric acid, and is superior to a single self-ignition ionic liquid.

Methods, systems, and apparatus for disrupting PFAS comprising adding sulfite to an aqueous solution containing PFAS and then irradiating the aqueous solution with light of 222 nm. The method may comprise adding a sufficient amount of a base to the aqueous solution to raise the pH of the aqueous solution comprising PFAS to about 10 or more. It may also comprise the addition of a halide salt (e.g., a bromide salt or iodised salt), and further the addition of a carbonate. By irradiating the aqueous solution in this manner, 90% or more, or 99% or more, of PFAS in the solution can be destroyed.

This application discloses a method for curing silver iodide, a ceramic curing body, and its applications. The method for curing silver iodide provided in this application, considering the widespread use of silver iodide in the treatment of radioactive iodine, directly uses silver iodide as a raw material, mixes it with barium source salt and sodium iodide salt raw materials, and prepares a ceramic curing body through steps such as dry pressing, reaction, and sintering, thereby curing radioactive iodine within the ceramic curing body. This method is simple, low-cost, and highly applicable, and can cure silver iodide with a content of 4.44–35.40 wt%. Compared with traditional iodine curing methods, it is more practical and can be applied to the disposal of radioactive iodine waste.

The invention discloses a selective unilateral dehalogenation method of an alpha, omega-diiodo-ethyl perfluoroalkane compound, which comprises the following steps: (1) continuously introducing alpha, omega-diiodo-ethyl perfluoroalkane and an alkali solution containing a phase transfer catalyst into a supergravity reactor for dehalogenation reaction, the generated reaction liquid overflows from an overflow port of the supergravity reactor; and (2) separating the reaction liquid overflowed in the step (1) to obtain an iodized salt aqueous solution and a crude product of alpha, omega-iodinated ethyl vinyl perfluoroalkane, and rectifying and purifying the crude product to obtain the alpha, omega-iodinated ethyl vinyl perfluoroalkane. According to the method, the mass transfer effect is enhanced by adopting the supergravity reactor, the alpha, omega-iodo-ethyl vinyl perfluoroalkane compound is prepared by highly selectively performing unilateral dehalogenation on the alpha, omega-diiodo-ethyl perfluoroalkane in combination with regulation and control on the feeding molar ratio of alkali, the raw material conversion rate is greater than or equal to 79%, and the unilateral dehalogenation selectivity is greater than or equal to 85%.

The application belongs to the technical fields of electrolyte additive and organic synthesis, and discloses a synthesis method of 2,4-butan sulfonic acid lactone. The synthesis method comprises the following steps: (1) stirring and dissolving 1,3-butanediol, sulfonating reagent and iodine salt catalyst in water, adjusting the pH of the system to be acidic, stirring and reacting at 50-100 DEG C, and obtaining 3-hydroxy butane sulfonate solution; (2) concentrating, acidifying, desalting and dehydration cyclization reaction of the 3-hydroxy butane sulfonate solution obtained in step (1) in sequence, and obtaining 2,4-butan sulfonic acid lactone. The synthesis method adopts 1,3-butanediol and sulfonating reagent to obtain 3-hydroxy butane sulfonate solution under the catalysis of iodine salt, and then obtains 2,4-butan sulfonic acid lactone through acidification and dehydration cyclization, and has the advantages of wide raw material source, mild reaction condition, less by-product, high product quality and low cost.

The invention discloses an iodine nutrition level evaluation method and system, and relates to the field of water component detection, and the system comprises a recording module which is used for recording iodized salt use scene information and iodine-containing food eating scene information of a user in real time through mobile computer equipment, and generating an iodine intake behavior data set with a scene label; the mapping module is used for collecting basic metabolic rate data and basic physiological parameters of the user, establishing an iodine metabolism state evaluation model and outputting a data set of physiological and metabolic mapping; the iodine salt use condition and the iodine-containing food eating condition are recorded in real time, basic metabolic rate data and basic physiological parameters of a user are collected at the same time, the environmental iodine exposure amount is calculated in combination with the water iodine concentration and the living time of a living area, and then the iodine nutrition supply and demand difference value is obtained so as to assist the user in mastering the own iodine nutrition condition in real time and adjusting diet habits in time; the iodine nutrition balance is effectively guaranteed.

A composition containing lactoperoxidase and one or more iodized salts is used to treat equine gastric ulcer syndrome.

The application belongs to the field of medicine synthesis and organic chemical industry, and relates to a synthesis method of diiodo 1,2,3-triazole compound, wherein azide compound, additive and solvent are added into a reaction container, air in the reaction container is replaced by nitrogen, acetylene gas is introduced into the reaction system, and the reaction is stirred at 0-50 DEG C, after the reaction is completed, the reaction product is separated, and the diiodo 1,2,3-triazole compound is obtained. The application is based on the cycloaddition reaction of acetylene and azide compound, copper salt, alkali and iodine salt are used as additives, the expected product is obtained through the cycloaddition reaction of the organic molecule containing azide functional group, the synthesis system of diiodo 1,2,3-triazole compound is established, the synthesis efficiency of 1,2,3-triazole compound is improved, the reaction system is mild, the reaction conversion rate is high, impurities are few, the product is easy to purify, and the operation is strong.

The application provides a phosphorescence detection method for levofloxacin in a complex matrix, wherein the complex matrix is an aqueous heterogeneous system, and the method comprises the following steps: adding a demulsifier A, a flocculant B and an acid C into the complex matrix, centrifuging to obtain supernatant, and neutralizing the supernatant with an alkali to obtain an extraction liquid A; the demulsifier A is polyethylene oxide; the flocculant B is any one of polyferric sulfate and polyaluminum sulfate or a mixture of the two; boric acid is mixed with the extraction liquid A, a catalyst D and a catalyst E are added into the mixture, and heating is performed to obtain a product B, the catalyst D is a cobalt salt, and the catalyst E is an iodine salt; the product B is excited by ultraviolet light, and phosphorescence detection is performed to obtain a detection result of the levofloxacin in the complex matrix. The application can realize quantitative or qualitative detection of trace levofloxacin in an extraction liquid of a complex matrix, and has the advantages of high detection sensitivity, convenient operation, obvious phenomenon and rapid detection.

The invention relates to the technical field of table salt, and provides table salt and a preparation method thereof. The preparation method of the table salt comprises the following steps: S100, uniformly dispersing an iodine source solution into a table salt raw material to form an iodized salt-containing wet mixture; s200, under the stirring condition, adding a silicic acid solution and a maltodextrin solution into the iodized salt-containing wet mixture, and carrying out precipitation reaction to obtain primary salt; and S300, performing post-treatment on the primary salt to obtain the table salt. According to the invention, composite precipitation of silicic acid and maltodextrin forms a coating on the surface of a salt crystal, so that volatilization and oxidation of iodine are inhibited during storage, moisture absorption and caking are reduced, and rapid release when the salt encounters water is maintained, thereby obtaining the iodized anti-caking salt with improved storage stability.

The invention relates to a method for preparing olefin from methanol and a preparation method of an NTZ-1 molecular sieve of an RTH type silicon-aluminum molecular sieve, and belongs to the technical field of catalysis. The particle size of the RTH type silicon-aluminum molecular sieve is 100-150 nm, and according to the preparation method of the RTH type silicon-aluminum molecular sieve, imidazolyl iodized salt and pyrazolyl dibromo salt are adopted as double organic structure guiding agents, and hydrothermal crystallization is performed to obtain the nano-sized RTH type silicon-aluminum molecular sieve. Compared with a traditional molecular sieve catalyst with an RTH structure, the molecular sieve catalyst has the advantages that the mass transfer problem caused by overlarge crystal size of the molecular sieve can be effectively improved, the molecular sieve catalyst is applied to a methanol to olefin (MTO) reaction, the problems of serious carbon deposition and difficult regeneration are solved to a certain extent, the deactivation rate of the catalyst is delayed, and the industrial application prospect is very good.

The invention discloses a trigonelline metformin iodized salt crystal form and a preparation method and application thereof.The preparation method comprises the following steps that nicotinoyl metformin, an organic solvent and iodomethane are evenly mixed and heated to the first temperature, a full reaction is conducted at the first temperature, and a crude product is obtained after the reaction is completed; adding the crude product into a solvent at a second temperature, uniformly mixing until the crude product is completely dissolved, then cooling to a third temperature so as to separate out a solid, and drying the solid, thereby obtaining the required trigonelline metformin iodized salt crystal form. The invention provides the novel preparation method of the trigonelline metformin iodized salt crystal form, and in combination with specific embodiments, compared with the prior art, the trigonelline metformin iodized salt crystal form prepared by the preparation method of the trigonelline metformin iodized salt crystal form is higher in yield and better in thermal stability.