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38results about "Iodide preparation" patented technology
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Preparation method of stable lead-free all-inorganic double perovskite A2BB'X6 nanocrystals
ActiveCN107934916AGood reproducibilityGood dispersionBromide preparationHydrocarbon from carbon oxidesReaction temperaturePhysical chemistry
The invention discloses a preparation method of stable lead-free all-inorganic double perovskite A2BB'X6 nanocrystals. The method adopts a thermal injection technology to synthesize the nanocrystals,and concretely comprises the following steps: mixing a metal precursor salt, a reaction solvent oleic acid, oleylamine, octadecene and other raw materials, carrying out vacuum heating and stirring ata certain temperature for a certain period of time, rising the temperature to a suitable reaction temperature under the protection of N2, rapidly injecting the obtained hot oleate solution of A into areaction system, and then rapidly cooling the system to room temperature by using ice bath to finally obtain the A2BB'X6 perovskite nanocrystals having a uniform size. The method has the advantages of simplicity, convenient, good reappearance and environmental protection, and the obtained product has the advantages of uniform size, good dispersion, high stability and excellent photocatalytic performance, and can be applied to the fields of photocatalysis, photodetectors, laser, solar cells and the like.
Owner:SUN YAT SEN UNIV
Nano-scale metal halide scintillation materials and methods for making same
Crystalline scintillator materials comprising nano-scale particles of metal halides are provided. The nano-scale particles are less than 100 nm in size. Methods are provided for preparing the particles. In these methods, ionic liquids are used in place of water to allow precipitation of the final product. In one method, the metal precursors and halide salts are dissolved in separate ionic liquids to form solutions, which are then combined to form the nano-crystalline end product. In the other methods, micro-emulsions are formed using ionic liquids to control particle size.
Owner:GENERAL ELECTRIC CO
Prepn process of nano silver iodide powder
InactiveCN1673093AHigh purityLow costNanostructure manufactureIodide preparationSilver iodideGranularity
The present invention relates to the preparation process of nanometer silver iodide powder. Clear silver sulfate water solution containing silver nitrate in 0.1-0.4 M / L and complexing agent in 0.034-0.2 M / L is dropped slowly into clear potassium iodide water solution containing potassium iodide in 0.1-0.4 M / L, complexing agent in 0.034-0.2 M / L and dispersant in 0.01-0.04 M / L at normal temperature and normal pressure via stirring, and the product is let stand to deposit to obtain nanometer silver iodide deposit. The nanometer silver iodide deposit is filtered, washed and dried at 80-100 deg.c for 1-2.5 hr to obtain nanometer silver iodide powder with granularity below 100 nm. The process is easy to control, pollution-free and suitable for industrial production, and the product has high quality and low cost.
Owner:JILIN UNIV
Process for preparing element halides
InactiveCN101061060AFast heating rateEfficient heatingBromide preparationChloride preparationTraffic accidentVehicle detection
To specify vehicles carrying persons who can be eyewitnesses in the event of a traffic accident. This vehicle detection apparatus is for detecting any vehicle located in the vicinity of an accident site at the time of occurrence of an accident and comprises a vehicle information storage part for storing vehicle identifiers; a one's own vehicle impact detection storage part for storing information about witnessing vehicles; a vehicle information reader part for obtaining vehicle identifiers from the vehicle information storage part of another vehicle detection apparatus; and an impact detection part for detecting impact and for obtaining the vehicle identifiers from the vehicle information reader part upon detection of the impact to store the vehicle identifiers as information about the eyewitnessing vehicles in the one's own vehicle impact detection storage part. Thus when detecting impact on a vehicle, the apparatus can obtain the identification numbers of nearby vehicles and specify any vehicles carrying persons who can be eyewitnesses of the traffic accident.
Owner:WACKER CHEM GMBH
Nano-scale metal halide scintillation materials and methods for making same
Owner:GENERAL ELECTRIC CO
Lead-iodide-based scintillator materials
InactiveUS20100072374A1Improve signal-to-noise ratioReduced dosIodide preparationMaterial analysis by optical meansGamma irradiationMicroparticle
Scintillator material comprising nanoparticles (nanocrystals) comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) wherein the nanoparticles exhibit room-temperature scintillation under gamma irradiation. The scintillator nanoparticles can comprise Pb3O2I2. The scintillator nanoparticles can comprise PbIOH in generally equiatomic proportions or non-equiatomic variants thereof that exhibit scintillation under gamma irradiation. The scintillator nanoparticles have a particle dimension in the range of about 5 to about 100 nm. Microparticles (microcrystals) also are provided comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) grown in a nanoparticle colloidal solution over time to a particle dimension greater than 0.1 μm, such as about 2 microns.
Owner:STC UNM
Method for the preparation of nanoparticles in ionic liquids
InactiveUS20130221289A1Simple and fast and effective methodMaterial nanotechnologyCell electrodesNanoparticleIonic liquid
The invention relates to a method for the preparation of nanoparticles in ionic liquids. Specifically, the invention relates to a simple, quick and effective method for the preparation of dispersions of nanoparticles (nanofluids) in an ionic liquid.
Owner:UNIVERSITY OF SANTIAGO DE COMPOSTELA
System and method for producing iodine compound
ActiveUS20100308261A1Avoid erosionSolution to short lifeHydrogen iodideIodide preparationTowerReagent
A system (100) of the present invention for producing an iodine compound includes: a raw material adjusting unit (1) for supplying hydrogen-containing gas to at least one of liquid iodine in an iodine melting pot (4) and gaseous iodine obtained by evaporating liquid iodine so as to obtain a mixture gas; a hydrogen iodide producing unit (10) including a hydrogen iodide producing tower (12) having a catalyst layer (12a) for converting the introduced mixture gas into crude hydrogen iodide gas; a hydrogen iodide refining unit for removing unreacted iodine from the introduced crude hydrogen iodide gas so as to obtain hydrogen iodide gas; and an iodine compound producing unit (30) for producing a target iodine compound from the obtained hydrogen iodide gas and a reaction material. This allows producing an iodine compound with high purity easily, efficiently, and with low cost.
Owner:NIPPON CHEMICALS CO LTD
Method for preparing iodized salt from iodine-contained absorption solution
ActiveCN102502504AEasy to makeReasonable recyclingIodide preparationLithium halidesHydroiodic acidMother liquor
The invention discloses a method for preparing iodized salt from iodine-contained absorption solution, which comprises the following operation steps of: reducing a free iodine elementary substance in the iodine-contained absorption solution into an iodide ion with a reducing agent, adding an appropriate amount of barium carbonate to convert a sulfate ion in a solution system into barium sulfate and adding alkali or salt being capable of reacting with hydroiodic acid into a filtrate after filtration to obtain required iodized salt solution; and obtaining the corresponding iodized salt in concentration and crystallization manners. The method has the beneficial effects that the complicated process of preparing the iodized salt by utilizing iodine is avoided, the process flow is shortened, and meanwhile, a large quantity of energy sources can be saved; intermediate body hydroiodic acid is taken as a raw material to prepare the iodized salt by utilizing an iodine recovery process, the raw material is easily obtained, and obtained mother liquid after concentration and crystallization can be directly returned to an iodine recovery device, so that the sources are reasonably recycled; and the preparation process of the iodized salt is simple, and products after concentration and crystallization have good quality and high product yield.
Owner:WENGFU (GRP) CO LTD
Process, method, and system for removing heavy metals from fluids
Trace element levels of heavy metals such as mercury in crude oil are reduced by contacting the crude oil with an iodine source, generating a water soluble heavy metal complex for subsequent removal from the crude oil. In one embodiment, the iodine source is generated in-situ in an oxidation-reduction reaction, by adding the crude oil to an iodine species having a charge and a reductant or an oxidant depending on the charge of the iodine species. In one embodiment with an iodine species having a positive charge and a reducing reagent, a complexing agent is also added to the crude oil to extract the heavy metal complex into the water phase to form water soluble heavy metal complexes which can be separated from the crude oil, for a treated crude oil having reduced levels of heavy metals.
Owner:CHEVROU USA INC
Method for recovering iodine
InactiveUS7736617B2Recovering iodine simply and economicallyIodide preparationIodineIodised saltAlkaline earth metal
Owner:NIPPON CHEMICALS CO LTD
Reclaiming method of inorganic iodide
InactiveCN1689966AHigh yieldEasy to recycleIodide preparationLiquid solutions solvent extractionHigh concentrationInorganic salts
To provide a method for recovering an inorganic iodide, by which the inorganic iodide can be easily recovered in a high concentration from a mixed inorganic salt aqueous solution containing the inorganic iodide without necessitating specific equipment, and to obtain an objective substance at a low cost by recycling the recovered inorganic iodide in an iodine ion-removing reaction.
Owner:FUJIFILM WAKO PURE CHEM CORP
Synthesis of bismuth iodine hybrid material and application to preparation of BiOI nano-sheet
InactiveCN107686130AEasy to operateEasy to shapeIodide preparationBismuth compoundsHybrid materialIodine
The invention relates to synthesis of a bismuth iodine hybrid material and application to preparation of a BiOI nano-sheet, and aims to synthesize the bismuth iodine hybrid material, wherein the bismuth iodine hybrid material can be directly applied to hydrolysis to prepare the BiOI nano-sheet. A bismuth iodine based hybrid (Habtz)BiI4 is prepared by taking bismuth iodide and 2-aminobenzothiazoleas reaction raw materials and taking mixed liquid of ethanol and hydroiodic acid as a reactant and a solvent and under the solvothermal condition, wherein the abtz is 2-aminobenzothiazole. The bismuthiodine hybrid material is simple to prepare, the raw materials are low in price and the yield is high. The hybrid material serving as a precursor can be hydrolyzed rapidly without adding other reaction raw materials in distilled water and without adjusting the pH value of the reaction, so that simple and efficient preparation of the BiOI nano-sheet is realized.
Owner:UNIV OF JINAN
System and method for producing iodine compound
A system (100) of the present invention for producing an iodine compound includes: a raw material adjusting unit (1) for supplying hydrogen-containing gas to at least one of liquid iodine in an iodine melting pot (4) and gaseous iodine obtained by evaporating liquid iodine so as to obtain a mixture gas; a hydrogen iodide producing unit (10) including a hydrogen iodide producing tower (12) having a catalyst layer (12a) for converting the introduced mixture gas into crude hydrogen iodide gas; a hydrogen iodide refining unit for removing unreacted iodine from the introduced crude hydrogen iodide gas so as to obtain hydrogen iodide gas; and an iodine compound producing unit (30) for producing a target iodine compound from the obtained hydrogen iodide gas and a reaction material. This allows producing an iodine compound with high purity easily, efficiently, and with low cost.
Owner:NIPPON CHEMICALS CO LTD
Vertical type Na131I dry distillation production device
InactiveCN104528652AHigh nuclear purityImprove production efficiencyIodide preparationElectricityDistillation
Owner:INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
P-type high-performance thermoelectric material with reversible phase change and preparation method therefor
ActiveUS20160126439A1Simple process flowLow costIodide preparationConductive materialThermoelectric materialsChemical composition
The present invention relates to a P-type high-performance thermoelectric material featuring reversible phase change, and a preparation method therefor. The thermoelectric material has a chemical composition of Cu2Se1-xIx, wherein 0<x≦0.08. The method comprises: weighing elemental copper metal, elemental selenium metal, and cuprous iodide according to the molar ratio (2−x):(1−x):x, and packaging them in a vacuum; raising the temperature to 1150-1170° C. in stages and performing a melting treatment for 12-24 hours; lowering the temperature to 600-700° C. in stages and then performing an annealing treatment for 5-7 days, the substances being cooled to room temperature in a furnace after the annealing treatment; and performing pressure sintering at 400-500° C.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Electrolyte based on aluminium iodide and its application
InactiveCN1911811AImprove conductivityRight melting pointLight-sensitive devicesIodide preparationSolventIonic liquid
The electrolyte based on AlI3 has the general expression of AlI3(L)n+mM+wI2+xG+yCP+zA, where, the ligand L is organic matter capable of coordinating with AlI3 and the coordination number n is 0-6; the solvent M may be amines, alcohols, nitriles or other organic solvent or ionic liquid and the coordination number m is 0-2000; w as the molar ratio between simple substance I and AlI3 is 0-0.5; the gel G is organic small molecular weight compound or organic high molecular weight compound with the molar ratio to AlI3 x of 0-1; the ceramic powder CP has molar ratio to AlI3 y of 0-5; and the additive A is compound for improving the performance of the electrolyte with the molar ratio to AlI3 z of 0-2. The electrolyte has high long term stability, high conductivity and proper smelting point, and may be used in dye sensitized solar cell and other energy converting and storing devices.
Owner:INST OF PHYSICS - CHINESE ACAD OF SCI
Prepn process of nano silver iodide powder
InactiveCN1280200CHigh purityLow costNanostructure manufactureIodide preparationSilver iodideRoom temperature
Owner:JILIN UNIV
Synthesis of CsSnI3 by a solution based method
Owner:ZHEJIANG SHANGYUE OPTOELECTRONICS TECH
Rhodium triiodid preparation method
ActiveCN1318311CLoose structureEasy to wash and filterIodide preparationRuthenium/rhodium/palladium/osmium/iridium/platinum compoundsAcetic acidTriiodide
The invention provides a method for preparation of rhodium triiodide, which contains: using trivalent rhodium hydroxide and hydriodic acid as reactive raw material, adding proper hydriodic acid solution of certain concentration into said trivalent rhodium hydroxide, heating up to 60-100Deg. C and mixing, keeping for 2-6 hours, and filtering, washing and drying to prepare product. The prepared rhodium triiodide is cinereous and porous, and it is easy to wash and filter; the rhodium content in the product is about 19.5-21.5%, and the impurity is almost negligible; and the product is especially suitable to be a catalyst for synthesis of acetic acid by carbonylation of methanol.
Owner:CHINA PETROLEUM & CHEM CORP +1
Production method for alkali metal iodide or alkaline earth iodide
The invention provides a production method for powder-like alkali metal iodide or alkaline earth iodide in industry. An alkali metal iodide solution, an alkaline earth iodide solution, an alkali metal iodide turbid liquid or an alkaline earth iodide turbid liquid are prepared by solving the alkali metal iodide or alkaline earth iodide or suspending the alkali metal iodide or alkaline earth iodide in a solvent, and the alkali metal iodide or alkaline earth iodide are smashed while removing the solvent of the solution or the turbid liquid.
Owner:NIPPON CHEMICALS CO LTD
Vertical type Na131I dry distillation production device
InactiveCN104528653ALow sublimation temperatureSafe transferIodide preparationAlkali metal iodidesElectricityCrucible
The invention provides a vertical type Na131I dry distillation production device which comprises a motor, a sliding chute, a distillation furnace, an iodine catcher and a controller, wherein the motor is fixedly connected with the sliding chute; the sliding chute is slidably connected with the distillation furnace; the distillation furnace is connected with the iodine catcher through a pipeline; and the controller is electrically connected with the motor, the distillation furnace and the iodine catcher respectively. The vertical type Na131I dry distillation production device provided by the invention can be used for producing the medical-grade Na131I from activated TeO2, and can be used for directly placing an uncapped target barrel into a ceramic crucible for distillation, thus obviously enhancing the unit yield of the device and the utilization rate of a raw material and reducing the risk of radioactive pollution and the output of a radioactive solid waste. The vertical type Na131I dry distillation production device provided by the invention is compact in structure, can be suitable for Na131I dry distillation production inside a shielding work box with a small effective operation space and has good stability, convenience and safety in operation.
Owner:INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Inorganic iodide, production method thereof, and production system thereof
Owner:NIPPON CHEMICALS CO LTD
Method for preparing iodized salt from iodine-contained absorption solution
ActiveCN102502504BAvoid cumbersome workmanshipEasy to makeIodide preparationLithium halidesFree iodineFiltration
The invention discloses a method for preparing iodized salt from iodine-contained absorption solution, which comprises the following operation steps of: reducing a free iodine elementary substance in the iodine-contained absorption solution into an iodide ion with a reducing agent, adding an appropriate amount of barium carbonate to convert a sulfate ion in a solution system into barium sulfate and adding alkali or salt being capable of reacting with hydroiodic acid into a filtrate after filtration to obtain required iodized salt solution; and obtaining the corresponding iodized salt in concentration and crystallization manners. The method has the beneficial effects that the complicated process of preparing the iodized salt by utilizing iodine is avoided, the process flow is shortened, and meanwhile, a large quantity of energy sources can be saved; intermediate body hydroiodic acid is taken as a raw material to prepare the iodized salt by utilizing an iodine recovery process, the raw material is easily obtained, and obtained mother liquid after concentration and crystallization can be directly returned to an iodine recovery device, so that the sources are reasonably recycled; and the preparation process of the iodized salt is simple, and products after concentration and crystallization have good quality and high product yield.
Owner:WENGFU (GRP) CO LTD
A kind of preparation method of stable lead-free all-inorganic double perovskite a2bb'x6 nanocrystals
ActiveCN107934916BGood reproducibilityGood dispersionBromide preparationPhysical/chemical process catalystsPhotodetectorPhysical chemistry
Owner:SUN YAT SEN UNIV
Prepn process of nano copper iodide powder
Owner:JILIN UNIV
Synthesis of a bismuth-iodine hybrid material and its use in the preparation of bioi nanosheets
Owner:UNIV OF JINAN
P-type high-performance thermoelectric material with reversible phase change, and preparation method therefor
ActiveUS10177295B2Simple chemical compositionLow costThermoelectric device with peltier/seeback effectIodide preparationThermoelectric materialsChemical composition
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
Vertical na131i retort production device
InactiveCN104528652BImprove production efficiencyImprove work efficiencyIodide preparationElectricityDistillation
The invention provides a vertical type Na131I dry distillation production device which comprises a dry distillation device, an absorption tower, a purifier, a vacuum pump and a controller, wherein the dry distillation device is fixedly connected with the absorption tower; the dry distillation device is further sequentially connected with the absorption tower, the purifier and the vacuum pump through a pipeline; and the dry distillation device and the vacuum pump are electrically connected with the controller respectively. The production device provided by the invention can produce medical-grade Na131I products from TeO2 raw materials irradiated by a reactor, and an uncovered target drum (e.g. zirconium alloy target drum) can be directly put into a quartz crucible for distillation, thus greatly improving the single production capacity and raw material utilization ratio, and reducing the radioactive solid waste content and contamination risk. The production device provided by the invention has a compact structure, is suitable for Na131I dry distillation production in a shielded working box with small effective operating space, and has favorable operation stability and safety.
Owner:INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Method for reducing oxygen content in halide molten salt
ActiveCN112891973AReduce oxygen contentImprove processing efficiencyBromide preparationChloride preparationDistillationPhysical chemistry
The invention discloses a method for reducing oxygen content in a halide molten salt. The method comprises the following steps of: carrying out distillation treatment on the halide molten salt under a vacuum condition; wherein the vacuum degree of the vacuum condition is 10<-5>-10<3>Pa; in the distillation treatment, the distillation temperature is at least 200DEG C higher than the condensation temperature, and the distillation temperature is 400-1200DEG C. According to the method for reducing the oxygen content in the halide molten salt, the oxygen content in the halide molten salt can be effectively reduced by 70% or above; the oxygen content in the treated distillation product can be as low as 560mg / Kg or below, and even as low as 200mg / Kg or below; the treatment efficiency is high, and the corrosion to equipment is relatively weak.
Owner:SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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