36 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.

This invention discloses a method for photo-promoted coupling of sulfonyl chlorides with olefins to prepare vinyl sulfone compounds. Using arylsulfonyl chloride as shown in formula (I) as a raw material, iodide salt, an olefin compound as shown in formula (II), a solvent, and a base are added to a reactor. The reaction is carried out under a nitrogen atmosphere and ultraviolet light irradiation to obtain a vinyl sulfone compound as shown in formula (III). The reaction equation is as follows: In formula (I), the Ar group is phenyl, substituted phenyl, or 3,5-dimethylisoxazole, and the substituent on the substituted phenyl group is fluorine, iodine, cyano, nitro, methyl, or trifluoromethyl. In formula (II), the hydrogen on the benzene ring is substituted or unsubstituted by substituent R2, where substituent R2 is fluorine or tert-butyl, and substituent R1 is hydrogen or phenyl. This invention uses inexpensive and readily available sulfonyl chlorides to efficiently promote the preparation of vinyl sulfone compounds from arylsulfonyl chlorides and olefin compounds. It uses light irradiation instead of traditional heating reactions, does not require the addition of precious metal catalysts, and has low reaction cost and high safety.

The invention discloses a preparation method of pentafluorocarbonyl oxomethyl carboxylate. Specifically, the invention discloses a preparation method of a compound as shown in a formula (I), which comprises the following steps: step S1, in a solvent, under the action of organic alkali, a compound 1 and a compound 2 are subjected to a substitution reaction as shown in the specification, and a compound 3 is prepared; s2, in a solvent, in the presence of alkali and iodized salt, the compound 3 and a compound 4 are subjected to a condensation reaction as shown in the specification, and the compound as shown in the formula (I) is prepared.

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 relates to a preparation method of 1-fluoro-3-iodine-5-(trifluoromethyl) benzene. The 1-fluoro-3-iodine-5-(trifluoromethyl) benzene is used as a raw material. The preparation method of the 1-fluoro-3-iodine-5-(trifluoromethyl) benzene comprises the following steps: mixing 3-bromo-5-fluorobenzotrifluoride, iodized salt, a catalyst and an active agent, and then carrying out a reaction, so as to obtain the 1-fluoro-3-iodine-5-(trifluoromethyl) benzene, the active agent is trans-(1R, 2R)-N, N '-dimethyl-1, 2-cyclohexane diamine. The preparation method provided by the invention is simple and convenient to operate, the synthetic raw materials are economical and easy to obtain, and the 1-fluoro-3-iodine-5-(trifluoromethyl) benzene with excellent yield and purity can be efficiently obtained.

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 invention provides a bismuth-based photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of sewage treatment. The preparation method of the bismuth-based photocatalyst provided by the invention comprises the following steps: mixing bismuth salt, ethylene glycol and urea, and carrying out first hydrothermal reaction to obtain a bismuth-containing precursor; and mixing the bismuth-containing precursor with iodized salt, and carrying out a second hydrothermal reaction to obtain the bismuth-based photocatalyst, the dosage ratio of the bismuth-containing precursor to the iodized salt is 1.02 g: 1-15 mmol. The bismuth-based photocatalyst is prepared by taking bismuth salt, ethylene glycol, urea and iodized salt as raw materials; the obtained photocatalyst can efficiently catalyze and degrade bisphenol A (BPA) and rhodamine b within 60 minutes under the condition of visible light, and has relatively high photocatalytic efficiency.

The invention discloses a method for preparing a vinyl sulfone compound by light-promoted sulfonyl chloride and olefin coupling, which comprises the following steps: by taking aryl sulfonyl chloride as shown in a formula (I) as a raw material, adding iodized salt, an olefin compound as shown in a formula (II), a solvent and alkali into a reactor, and reacting under a nitrogen atmosphere, so as to obtain the vinyl sulfone compound. In the reaction equation # imgabs0 # formula (I), an Ar group is phenyl, substituted phenyl or 3, 5-dimethylisoxazole, a substituent group on the substituted phenyl is fluorine, iodine, cyano, nitro, methyl or trifluoromethyl, in the formula (II), hydrogen on a benzene ring is substituted or not substituted by a substituent R2, and in the formula (II), hydrogen on a benzene ring is substituted or not substituted by a substituent R3. The substituent R2 is fluorine or tertiary butyl, and the substituent R1 is hydrogen or phenyl. According to the method, sulfonyl chloride which is low in cost and easy to obtain is used, aryl sulfonyl chloride and olefin compounds are efficiently promoted to prepare the vinyl sulfone compounds, illumination is adopted to replace a traditional heating reaction, a noble metal catalyst is not added, the reaction cost is low, and the safety is high.

The invention belongs to the technical field of oilfield chemistry, and particularly relates to a corrosion inhibition polymer for acid fracturing, a corrosion inhibitor composition and a preparation method of the corrosion inhibition polymer. The preparation method of the corrosion inhibition polymer for acidizing and fracturing comprises the following steps: taking N-carbobenzoxy histidine and N-carbobenzoxy tryptophan, respectively protecting the N-carbobenzoxy histidine and the N-carbobenzoxy tryptophan by using 2, 4-dinitrofluorobenzene, obtaining corresponding acid anhydrides with protecting groups by using thionyl chloride, polymerizing the acid anhydrides, and removing the protecting groups to obtain the corrosion inhibition polymer. The preparation method of the corrosion inhibitor composition comprises the step of compounding the corrosion inhibition polymer and iodized salt. The corrosion inhibitor compound is a polypeptide polymer formed by histidine and tryptophan, is compounded with iodized salt, can form effective covering on the metal surface, meets the corrosion inhibition requirement under the acid fracturing condition, and belongs to an environment-friendly reagent.

This invention discloses a method for preparing pentafluorocarbonyl oxomethyl carboxylate. Specifically, this invention discloses a method for preparing a compound as shown in formula (I), comprising the following steps: Step S1: In a solvent, under the action of an organic base, compound 1 and compound 2 undergo a substitution reaction as shown below to prepare compound 3; Step S2: In a solvent, in the presence of a base and an iodide salt, compound 3 and compound 4 undergo a condensation reaction as shown below to prepare the compound as shown in formula (I).

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.

To provide a positive resist material that exhibits higher sensitivity than conventional positive resist materials, reduced dimensional variation, and a favorable pattern profile after exposure, and also to provide a positive resist composition containing the material, a patterning method using the composition, and a polymer compound serving as the positive resist material.SOLUTION: The present invention provides a positive resist material comprising a base polymer having, as a pendant group bound to the polymer backbone, a sulfonium salt or an iodonium salt of a carboxylic acid, wherein the base polymer includes a repeating unit of a specific structure that includes a repeating unit (a) including one or more iodine atoms between the polymer backbone and the carboxylate.SELECTED DRAWING: None

The present invention belongs to the technical field of salt manufacturing, and specifically relates to a seaweed iodized salt and a preparation method thereof. The seaweed iodized salt, measured by weight, comprises 100 to 150 parts of iodine-free salt, 0.1 to 0.5 parts of seaweed iodine crystals, and an appropriate amount of ammonium ferric citrate. The seaweed iodized salt prepared by the present invention meets the iodine content standard for edible salt, and the organic iodine content in the prepared seaweed iodine crystals is relatively high. The iodine-containing amino acids in the organic iodine can be directly absorbed by the human body and are not limited by the amount of protein intake. Inorganic iodine also has good stability in this system and is not easily decomposed at high temperatures, thus meeting actual cooking needs. The seaweed iodized salt prepared by the present application has a wide economic value and is suitable for large-scale promotion and production.

The invention discloses an N-heterocyclic carbene metal complex and a preparation method thereof, a preparation method of NHC-M / BN.The preparation method of the N-heterocyclic carbene metal complex comprises the steps that 1, 3-dimethylimidazole iodized salt, silver oxide and silver carbonate are weighed and dissolved in acetonitrile, a reflux heating reaction is carried out, after the reaction is completed, filtering is carried out, solids are removed, the solution is subpackaged in small bottles, and the N-heterocyclic carbene metal complex is obtained. The method comprises the following steps: mixing acetonitrile and acetone, sealing and pricking, sealing in a container filled with acetone, standing, mutually diffusing acetonitrile and acetone, obtaining an N-heterocyclic carbene silver complex crystal after 3-5 days, and drying to obtain a product. The hexagonal boron nitride is subjected to surface modification by adopting an N-heterocyclic carbene metal complex, a novel composite nano heat-conducting filler is developed and serves as an auxiliary component of an electronic cooling liquid formula, and the problems that the electronic cooling liquid taking the hexagonal boron nitride as a heat-conducting additive is poor in compatibility and stability and the like are solved; a novel formula with better performance and environment friendliness is provided for the field of electronic coolants.

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 iodo-carbazole derivative as well as a separation and extraction method and application thereof, and relates to the technical field of natural derivative compounds. According to the invention, bromine salt and iodine salt are respectively added into a culture medium, streptomyces sp. OUCMDZ-5511 is subjected to fermentation culture, according to the abundance difference of iodine and bromine, the chemical structure of bromo-carbazole obtained by separation is taken as a basis, the molecular weight after bromine substitution is converted into iodine substitution is taken as a target molecular weight, a target iodinated product is searched on LC-MS, and the target iodinated product is obtained through purification. The secondary metabolite is separated and purified by using the method as a tracking separation means, so that the problem that the bioavailability of the iodide by microorganisms is low is effectively solved; the iodo-carbazole derivative disclosed by the invention has a good application prospect in the aspects of preventing and treating neuroinflammation, cognitive impairment, Parkinson's disease, ischemic cerebral apoplexy and hemorrhagic cerebral apoplexy, is small in dosage and low in side effect, and can be used for research and development of related medicines and functional foods.

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 resist composition comprising an acid generator containing a sulfonium or iodonium salt of an arylsulfonic acid substituted with at least two iodine atoms is provided. It exhibits a high sensitivity and forms a pattern with reduced LWR or improved CDU independent of whether it is of positive or negative type.

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 present invention relates to an optionally substituted aluminum-salen complex having a 3-pyridinium bridging group, and further describes a catalyst system comprising said complex, which is optionally supported, and which contains a bromine salt or an iodine salt as co-catalyst. The catalyst system is used in a process for preparing cyclic carbonates by reacting an epoxy compound with carbon dioxide at appropriate pressure.

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 discloses a method for green and efficient removal of hydrophobic VOCs (Volatile Organic Compounds) through electro-catalysis-induced oxidation-absorption coupling, and belongs to the field of VOCs treatment. The method comprises the following steps: constructing an iodine-based electrooxidation self-circulation system for removing hydrophobic VOCs by taking a high oxygen evolution overpotential electrode as an anode, a material capable of realizing efficient reduction of IO3 <-> as a cathode and an alkaline iodine salt solution as an electrolyte; under the condition of electrification, the high-oxygen-evolution over-potential electrode electrically oxidizes the iodized salt solution under the alkaline condition, and generates IO3. And. OH free radicals through electro-catalysis; iO3. And. OH free radicals in the electrolyte quickly oxidize the liquid-phase VOCs by utilizing the strong oxidizing property of the free radicals, so that the mass transfer process of the gas-liquid-phase VOCs is promoted, and the quick degradation of the gas-phase hydrophobic VOCs is realized; after VOCs are oxidized, IO3 <-> in the solution is reduced into a low-valence iodine salt solution, and self-circulation of iodine in the system is achieved. The method has the characteristics of high efficiency, greenness and sustainability.

A resist composition comprising a base polymer possessing a sulfonium or iodonium salt structure having an iodized arylsulfonic acid anion attached to its backbone is provided. It exhibits a high sensitivity and forms a pattern with reduced LWR or improved CDU independent of whether it is of positive or negative type.