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73 results about "Rubidium chloride" patented technology

Rubidium chloride is the chemical compound with the formula RbCl. This alkali metal halide is composed of rubidium and chlorine, and finds diverse uses ranging from electrochemistry to molecular biology.

Comprehensive utilization method for bittern

The invention relates to a comprehensive utilization method for bittern, which belongs to the technical field of salt chemical engineering. The bittern is a liquid mineral product, and is rich in multiple elements such as potassium, sodium, lithium, boron, bromine, iodine and the like; and at present, in the prior domestic bittern development and utilization, some simple components or components with high additional value in the elements are extracted, and the un-extracted components are discharged along with old bittern to be abandoned so as to cause serious waste of resources and pollute the environment. Through reasonable combination of processes of removing H2S from the bittern, settling magnesium, settling calcium and preparing calcium carbonate, preparing potassium-sodium mixed saltthrough primary salt preparation and secondary salt preparation, extracting potassium chloride through flotation, extracting boron, iodine, bromine, rubidium and cesium through acidification, preparing rubidium chloride and cesium chloride, extracting lithium and the like, the method implements step-by-step ordered extraction of main components; the toil yield of several main components reaches over 95 percent; and the method has the advantages of mutually exclusive loss in component extraction, implementation of closed cycle of processes, no mother liquor discharge, simple process control, low cost, high yield, environmental protection and the like.
Owner:DAZHOU HENGCHENG ENERGY GROUP

Method for extracting rubdium and cesium from acid brine

The invention discloses a method for extracting rubdium and cesium from acid brine. The method includes the steps that brine is pumped into an ammonium type chelate resin adsorption column, calcium ions and magnesium ions are adsorbed through the ammonium type chelate resin adsorption column, and effluent is brine without the calcium ions and the magnesium ions; the effluent is mixed with t-BAMBP or kerosene or sulfonated kerosene to be shaken, and a mixture stands still for layering and separation of a water phase and an organic phase; and reextraction is conducted on the organic phase, and the water phase containing rubidium chloride and cesium chloride is obtained. The method is simple in process, low in production cost, capable of achieving separate extraction for removing rubdium and cesium ions in radioactive water and free of secondary pollution.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI

Universal, glycosylation enhancer, completely chemically defined medium formulation

In one embodiment, the present application discloses a cell culture medium for culturing cell lines suitable for producing a therapeutic protein, comprising an amino acid selected from a group consisting of L-arginine, L-asparagine, L-proline, L leucine and L hydroxyproline and a mixture thereof; a vitamin selected from a group consisting of ascorbic acid Mg2+ salt, biotin, pyridoxine HCL, folic acid, riboflavin and D-calcium pantothenate, and a mixture thereof; an element selected from a group consisting of ammonium meta vanadate, sodium meta vanadate, germanium dioxide, barium acetate, aluminum chloride, rubidium chloride, cadmium chloride, ammonium molybedate, stannous chloride, cobalt chloride, chromium sulfate, silver nitrate, sodium metasilicate, zinc sulfate, manganese sulfate H2O, manganous chloride, ferric nitrate 9H2O, ferrous sulfate 7H2O, ferric ammonium citrate, magnesium chloride anhydrous, and magnesium sulfate anhydrous, and a mixture thereof; a nucleoside selected from a group consisting of uridine and cystidine; a sugar selected from a group consisting of galactose, mannose and N-Acetyl-D-Mannosamine; and a triple buffering system comprising sodium carbonate, sodium bicarbonate and HEPES; wherein the cell culture medium is animal component-free, plant component-free, serum-free, growth factors-free, recombinant protein-free, lipid-free, steroid-free, and free of plant or animal hydrolysates and / or extracts.
Owner:NANOGEN PHARMA BIOTECH CO LTD

Extraction method of rubidium

The invention discloses an extraction method of rubidium, which comprises the steps of raw material treatment, alkali leaching, extraction and back extraction. The method specifically comprises the following steps: taking the raw material rubidium-containing feldspar, and pulverizing for later use; adding an alkaline solution of which the liquid-to-solid ratio is 1-6 into the treated raw material, mixing, and adding the mixture into a pressurized reaction kettle to carry out reaction to form a slurry, and filtering, wherein the filter residue is used as the raw material for producing cement, and the filtrate is for later use; adding an extractant t-BAMBP of which the volume ratio is 1-5 into the filtrate to carry out extraction, thereby obtaining a rubidium-carried organic phase; and adding HCl of which the volume ratio is 1-8 into the rubidium-carried organic phase to carry out back extraction, thereby obtaining rubidium chloride. By carrying out alkaline leaching on the raw material rubidium-containing feldspar in the pressurized reaction kettle, the invention can obviously enhance the leaching rate of rubidium (up to higher than 98%), has the advantage of short reaction time (min 0.5 hour), and provides conditions for comprehensive utilization of rubidium-containing feldspar.
Owner:KUNMING METALLURGY INST

Method for preparing three-dimensional graphene-phosphotungstate

InactiveCN105870430ASmall sizeSolve the difficulty of embedding and detachmentCell electrodesSecondary cellsFreeze-dryingMolecular cluster
The invention discloses a method for preparing three-dimensional graphene-phosphotungstate, and belongs to the technical field of chemical batteries. The method comprises the following steps of: mixing a rubidium chloride solution and a phosphotungstic acid solution to react so as to obtain rubidium phosphowolframate; mixing the rubidium phosphowolframate and a graphene oxide solution, performing hydrothermal reaction, after the reaction is completed, cooling to the room temperature, taking out solid substances, and performing freeze-drying, thereby obtaining three-dimensional graphene-phosphotungstate. The method disclosed by the invention is simple, the prepared rubidium phosphowolframate is relatively small in size, uniform in morphology and beneficial to solve the problem that lithium ions are hard to embed and desorb from microcrystalline structures, and can be applied to cathode materials of lithium batteries, and conductivity of a heteropolyacid molecular cluster battery can be improved.
Owner:YANGZHOU UNIV

Method for extracting rubidium chloride from kaolin tailings

The invention discloses a method for extracting rubidium chloride from kaolin tailings. Firstly, the kaolin tailings are subjected to millstone mill crushing and sieving to obtain kaolin fine mineralpowder, the kaolin fine mineral powder and a leaching agent are mixed evenly, the evenly-mixed powder is poured into an acid solution which is heated in advance, acid leaching is conducted, and an acid leaching liquid is obtained; the pH of the obtained leaching liquid is adjusted to approach neutral, calcium is removed, and leaching liquid containing rubidium is obtained; and the processes that 4-tert-butyl-2-(alpha-xylyl) which is diluted by adding sulfonated kerosene is adopted for extraction, a hydrochloric acid solution is adopted for reverse extraction and the like are adopted to obtaina rough rubidium salt product, and the rough rubidium salt product is dissolved and recrystallized to obtain a rubidium salt product with high purity. The rubidium salt extraction process free of chloridizing roasting has the advantages of being simple and feasible in process procedure, low in cost, environmentally friendly, free of pollution and suitable for industrialization.
Owner:CENT SOUTH UNIV

High-adsorption performance biochar for heavy metal ions and preparation method for high-adsorption-performance biochar

The invention discloses a high-adsorption performance biochar for heavy metal ions. The high-adsorption performance biochar is prepared by using sorghum residues, rice residues, glutinous rice residues, wheat residues and corn residues which are obtained after wine is brewed as raw materials and performing anaerobic pyrolysis; the high-adsorption performance biochar is characterized by being prepared by uniformly mixing the sorghum residues, the rice residues, the glutinous rice residues, the wheat residues and the corn residues which are crushed to a certain particle size in a certain mass ratio; adding a suitable amount of a rubidium chloride solution with an appropriate concentration; sealing and standing for 12 hours; performing high-temperature anaerobic pyrolysis on a mixture after the solution is dried naturally; soaking the mixture which is subjected to the high-temperature anaerobic pyrolysis by utilizing a mixed solution of HCl / HF; washing the mixture to neutral by utilizing distilled water. According to the biochar prepared by the preparation method, the content of lead, chromium, zinc and copper in water can be effectively reduced; the highest removal rates of the lead, the chromium, the zinc and the copper in the water can reach 99.2 percent, 85.3 percent, 82.9 percent and 85.9 percent.
Owner:SICHUAN AGRI UNIV

Three-component mercury-free catalyst for hydrochlorination of acetylene and preparation method of catalyst

The invention discloses a mercury-free catalyst for hydrochlorination of acetylene and a preparation method of the catalyst. The catalyst contains carrier activated carbon and an active component which is a mixture of three components, wherein the component A is chloroauric acid, the component B is copper chloride, the component C is one of sodium chloride, potassium chloride, rubidium chloride, cesium chloride, magnesium chloride, calcium chloride, cerium chloride and barium chloride, the weight percentage of a gold element in the component A and the carrier is 0.01%-0.1%, the weight percentage of copper chloride in the component B and the carrier is 0.5%-20%, and the weight percentage of the component C and the carrier is 1%-30%. The active component is supported on the carrier through equivalent-volume impregnation, and the novel mercury-free catalyst is obtained with a drying means. The catalyst has very high activity, selectivity and better stability in the reaction for preparingvinyl chloride through hydrochlorination of acetylene.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1

Method for recycling rubidium from iron tailings

The invention provides a method for recycling rubidium chloride from iron tailings. The method comprises the following steps of: classification: the iron tailings are classified to obtain a first mineral of +10 microns; flotation: the flotation is performed for the first mineral to obtain rubidium concentrate; roasting: the rubidium concentrate is roasted to obtain a roasting product; the leaching and the extraction-back extraction are performed for the roasting product in sequence to obtain a water phase as a rubidium ore solution. The flotation at least comprises sulfur removal flotation and recycling flotation which are performed in sequence; and each of the sulfur removal flotation and the recovery flotation comprises one time of rough concentration, two times of scavenging and four times of concentration. The method, through classification of the iron tailings, can obtain the mineral with the particle size of +10 microns, and the rubidium accumulates in the mineral with the particle size; and the content of the rubidium is 8-10 times higher than that of the rubidium in the raw material of iron tailings, so that the subsequent separation and purification treatment is facilitated.
Owner:湖南鑫生矿冶废弃物综合利用科技有限公司

Preparation method and application of lithium/rubidium ion synchronous absorbent

The invention belongs to the technical field of material preparation and separation and relates to preparation of lithium / rubidium absorbing materials, particularly to a preparation method and application of a lithium / rubidium ion synchronous absorbent. The preparation method comprises, firstly, synthesizing a silicon film by taking nanocrystalline cellulose (NCC) as a formwork; secondly, through impregnation, supporting a lithium manganese oxide (HMO) ionic sieve on the surface of the silicon film; lastly, performing modification through N-[3-(trimethoxyl silypropyl) ethylenediamine triacetate (TMS-EDTA) to obtain the lithium / rubidium ion synchronous absorbent. According to the preparation method of the lithium / rubidium ion synchronous absorbent, the silicon film synthesized by taking NCC as the formwork is large in specific surface and accordingly can support more functional molecules, improving the absorbing capacity; the obtained lithium / rubidium ion synchronous absorbent is high in stability, easy to separate, and environmentally friendly; serving as an absorbing object, lithium / chloride / rubidium chloride mixed solution is high in absorbing capacity and good in absorptive selectivity. When applied to absorbing and separating lithium / rubidium ions in saline lake and brine, the lithium / rubidium ion synchronous absorbent is simple to operate, high in absorption rate and capable of achieving certain practical values.
Owner:JIANGSU UNIV

Method of separating and extracting rubidium and cesium from coal

The invention relates to a method of separating and extracting rubidium and cesium from coal. The method comprises the following steps of: smashing coal; dissolving the smashed coal in a mixed acid to filter; extracting a filtrate and then adding iodine chloride to generate a precipitate; then adding the precipitate into potassium iodide to be dissolved to generate rubidium chloride, cesium chloride, potassium chloride and iodine single element; extracting the iodine single element with an organic solvent; then extracting the solution containing rubidium chloride, cesium chloride and potassium chloride with t-BAMBP to generate a precipitate; then dissolving the precipitate in diluted hydrochloric acid; then performing evaporative crystallization; and finally obtaining high purity rubidium chloride and cesium chloride. The method of separating and extracting rubidium and cesium from coal provided by the invention separates and extracts rubidium ions and cesium ions from coal by means of a method of precipitation, extraction and counter-extraction, so that the process step of separating rubidium and cesium from coal is simplified, and the production cost is low and the production period is short.
Owner:HEBEI UNIV OF ENG

Preparation method for efficient competent cell of escherichia coli

The invention provides a preparation method for an efficient competent cell of escherichia coli. The step comprises the steps that escherichia coli is cultivated in a conventional liquid medium till an OD value is about 0.4, then cells are collected by centrifugation, and the competent cell is prepared by a rubidium chloride method.
Owner:康盈创新生物技术(北京)有限公司

Ternary metal halide with ultrahigh fluorescence efficiency and preparation method

The invention relates to a ternary metal halide with ultrahigh fluorescence efficiency and a preparation method thereof, and belongs to the technical field of perovskite crystal material preparation. The ternary metal halide is a Sn-doped Rb4CdCl6 perovskite fluorescent material, and is prepared by the steps of mixing rubidium chloride, anhydrous cadmium chloride and tin chloride, uniformly grinding, transferring into a hydrothermal reaction kettle, adding concentrated hydrochloric acid, hypophosphorous acid and sodium citrate, sealing the reaction kettle, putting into a tubular furnace, heating to 110-200 DEG C, maintaining for 600 minutes, slowly cooling to room temperature at the speed of 5 DEG C / h, and performing suction filtration, washing, drying, cooling treatment and the like. The Rb4CdCl6 powdery microcrystal with the ultrahigh fluorescence quantum yield close to 100% is synthesized through a simple hydrothermal method, the material emits dazzling blue-green fluorescence under excitation of an ultraviolet lamp, and the material has ultrahigh stability.
Owner:JILIN UNIV

Organic electroluminescent device and manufacturing method thereof

The invention discloses an organic electroluminescent device and a manufacturing method thereof. The organic electroluminescent device comprises a glass substrate, a conductive anode, a hole injection layer, a hole transmission layer, a luminous layer, an electron transmission layer, an electron injection layer and a cathode which are stacked in sequence, wherein the electron injection layer comprises a rhenium compound doped layer, a rubidium compound layer and a metal layer which are stacked in sequence; the rhenium compound doped layer is arranged on the surface of the electron transmission layer and made from a mixed material formed by mixing a rhenium compound with a bipolar organic material at a mass ratio of (1:1) to (4:1); the rubidium compound layer is made from rubidium carbonate, rubidium chloride, rubidium nitrate or rubidium sulfate; the metal layer is made from low-work-function metal with the work function ranging from -2.0 eV to -3.5 eV. The electron injection layer can effectively improve the luminous efficiency of the device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

An animal cell culture medium, a preparing method thereof and applications of the culture medium

An animal cell culture medium, a preparing method thereof and applications of the culture medium are provided. The culture medium comprises 150-230 parts by weight of amino acids or salts thereof, 180-280 parts by weight of carbohydrates, 160-260 parts by weight of inorganic salts, 1-2 parts by weight of vitamins and 0.002-0.003 part by weight of trace elements. The trace elements comprise manganese chloride tetrahydrate, sodium metavanadate, selenious acid, germanium dioxide, potassium bromide, chromium chloride hexahydrate, ammonium metavanadate, rubidium chloride, cadmium chloride, cobalt chloride hexahydrate, barium acetate, zirconyl chloride octahydrate, sodium fluoride, ammonium molybdate tetrahydrate, copper chloride dihydrate, lithium chloride and aluminium chloride hexahydrate. The culture medium is simple and definite in components, convenient to prepare and use, stable in quality, and low in batch differences, and can be particularly used for culturing a plurality of animal cells. Cell growth states are good and stable.
Owner:中生天信和(无锡)生物科技有限公司

Organic electroluminescence device and preparation method thereof

An organic electroluminescence device comprises an anode, a hole injection layer, a hole transport layer, a luminescent layer, an electron transport layer, an electron injection layer and a cathode which are stacked in sequence, wherein the electron injection layer consists of a ternary doped layer and a cesium salt doped layer; the ternary doped layer comprises a rubidium compound material, a zinc oxide material and an electron transport material I; the rubidium compound material is at least one of rubidium carbonate, rubidium chloride, rubidium nitrate and rubidium sulfate; the glass transition temperature of the electron transport material I is 50-100 DEG C; the cesium salt doped layer comprises a cesium salt material and an electron transport material II doped in the cesium salt material; the glass transition temperature of the electron transport material II is 50-100 DEG C; the cesium salt material is at least one of cesium fluoride, cesium carbonate, cesium azide and cesium chloride. The organic electroluminescence device is relatively high in luminescence efficiency. The invention further provides a preparation method of the organic electroluminescence device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Method for extracting rubidium chloride from rubidium-containing high-salt brine

The invention relates to the technical field of rubidium separation and purification, and particularly discloses a method for extracting rubidium chloride from rubidium-containing high-salt brine. Themethod comprises the following steps: firstly, adding inorganic alkali into rubidium-containing high-salt brine in stages to precipitate metal ion impurities such as copper, lead, zinc and magnesiumin the rubidium-containing high-salt brine, and adjusting the pH value of the high-salt brine to 13-14; and then, carrying out multistage extraction-washing-reverse extraction treatment on the high-salt brine by using 4-tert-butyl-2-(alpha-methyl benzyl) phenol as an extracting agent and sulfonated kerosene as a diluent to obtain a reverse extraction solution containing rubidium chloride, and carrying out precipitation, calcination and re-crystallization treatment on the reverse extraction solution to obtain a high-purity rubidium chloride product. Tests prove that rubidium can be extracted and purified from rubidium-containing high-salt brine by the method, and the volume of raffinate in the extraction process is not increased on the premise of ensuring the rubidium separation effect andrecovery rate, so that the subsequent treatment cost of the brine is reduced.
Owner:INST OF RESOURCES COMPREHENSIVE UTILIZATION GUANGDONG ACAD OF SCI

Catalyst for preparing vinylidene chloride by trichloroethane gas-phase catalytic cracking and preparation method thereof

The invention discloses a catalyst for preparing vinylidene chloride by trichloroethane gas-phase catalytic cracking and a preparation method thereof. The catalyst comprises a carrier and active ingredients loaded on the carrier, wherein, the active ingredients are more than one of cesium chloride, potassium chloride or rubidium chloride. The catalyst obtained by the method can be applied to preparing the vinylidene chloride by 1,1,2-trichloroethane or 1,1,1-trichloroethane gas-phase catalytic cracking, wherein, when the 1,1,2-trichloroethane is taken as a cracking reaction raw material, the conversion rate can reach up to over 23.8%, and the selectivity can reach up to over 87.7%; and when the 1,1,1-trichloroethane is taken as a cracking reaction raw material, the conversion rate can reach up to over 19.2%, and the selectivity can reach up to over 99.5%, thus meeting the industrialization need.
Owner:EAST CHINA UNIV OF SCI & TECH

Method for short-process extraction of rubidium chloride from rubidium-containing high-salt brine

The invention relates to the technical field of rubidium separation and purification, and particularly discloses a method for short-process extraction of rubidium chloride from rubidium-containing high-salt brine. The method comprises the following steps: firstly, adding inorganic alkali into rubidium-containing high-salt brine in stages, precipitating metal ion impurities such as copper, lead, zinc and magnesium, and adjusting the pH value of the high-salt brine to 13-14; and then, carrying out extraction washing reverse osmosis reverse extraction treatment on the high-salt brine by using 4-tert-butyl-2-(alpha-methyl benzyl) phenol as an extracting agent and sulfonated kerosene as a diluent to obtain a reverse extraction solution containing rubidium chloride, and sequentially carrying outprecipitation, calcination and recrystallization treatment on the reverse extraction solution to obtain a high-purity rubidium chloride product. According to the method disclosed by the invention, the rubidium is separated and purified from the high-salt brine by utilizing a short extraction process, so that the extraction process is shortened, partial circulation of washing water is realized, the yield of raffinate is reduced, and the subsequent treatment cost of the salt brine is reduced on the premise of ensuring the separation effect and the recovery rate of the rubidium.
Owner:INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI

Method for manufacturing MEMS atomic cavity of chip atomic clock

The invention discloses a method for manufacturing an MEMS atomic cavity of a chip atomic clock. According to the method, a sealed cavity is formed by using a trough-type cover plate and a silicon wafer, so that the rubidium vapor generated by the reaction of barium azide BaN6 and rubidium chloride RbCl is separated from reaction residues, a pure rubidium atomic MEMS cavity is obtained, and the light transmittance of the MEMS atomic cavity is improved; and by accurately controlling the intensity of pressure in an anodic bonding machine, the intensity of pressure in the anodic bonding machine is slightly higher than the intensity of pressure in the MEMS cavity, the phenomenon that the leakage of the rubidium vapor does not occur in a process of second-layer silicon-glass anodic bonding canbe ensured, the rubidium filling amount in the MEMS cavity can be ensured, the contamination of rubidium atoms to a bonding interface can be prevented, the strength of anodic bonding can be increased,and the performance of the MEMS atomic cavity can also be improved. By adopting the manufacturing method disclosed by the invention, impurities in the MEMS atomic cavity can be removed, good light transmittance can be achieved, and the yield of the MEMS atomic cavity can be improved.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT

Orangered glass and production method and application thereof

The invention relates to orangered glass and a production method and application thereof; the orangered glass is made from, by weight, 5-13.0% of Na2O, 1-4.5% of Rb2O, 6.4-10.0% of CaO, 2.0-3.0% of BeO, 60-65% of SiO2, 1% of Na2SO4, 4.5% of C, and 5.6% of Se; the above components are introduced in the forms of sodium carbonate, rubidium chloride, limestone, beryllium hydroxide, silica sand, sodium sulfate, carbon powder, and selenium powder respectively. The above materials are mixed well, the mixture is melted at 1485+ / -5 DEG C, the temperature is held for 90 min, the glass melt is poured into a mold that is preheated to 580 DEG C, the mold is placed a resistance furnace held at 580 DEG C for the purpose of annealing, and the temperature is held for 60 min before natural cooling to room temperature. Carbon and selenium are mixed for coloring; as carbon and selenium are used together under controlled usage, the orangered glass can be produced which has bright appearance and full color, never fades and is a novel material for making ornaments.
Owner:LUOYANG INST OF SCI & TECH

Comprehensive utilization method for bittern

The invention relates to a comprehensive utilization method for bittern, which belongs to the technical field of salt chemical engineering. The bittern is a liquid mineral product, and is rich in multiple elements such as potassium, sodium, lithium, boron, bromine, iodine and the like; and at present, in the prior domestic bittern development and utilization, some simple components or components with high additional value in the elements are extracted, and the un-extracted components are discharged along with old bittern to be abandoned so as to cause serious waste of resources and pollute the environment. Through reasonable combination of processes of removing H2S from the bittern, settling magnesium, settling calcium and preparing calcium carbonate, preparing potassium-sodium mixed salt through primary salt preparation and secondary salt preparation, extracting potassium chloride through flotation, extracting boron, iodine, bromine, rubidium and cesium through acidification, preparing rubidium chloride and cesium chloride, extracting lithium and the like, the method implements step-by-step ordered extraction of main components; the toil yield of several main components reaches over 95 percent; and the method has the advantages of mutually exclusive loss in component extraction, implementation of closed cycle of processes, no mother liquor discharge, simple process control, low cost, high yield, environmental protection and the like.
Owner:DAZHOU HENGCHENG ENERGY GROUP

Novel rubidium bismuth chloride perovskite nanocrystalline Rb7Bi3Cl16 and preparation method thereof

The invention discloses a crystal structure and a preparation method of a novel rubidium bismuth chloride perovskite nanocrystalline material. The chemical formula of the crystalline material is Rb7Bi3Cl16, which belongs to a trigonal crystal system, has a space group of P-31c, and the cell parameters of alpha=beta=90 degrees, gamma=120 degrees and Z=2. The preparation method of the nanocrystalline material mainly uses a polar solvent to dissolve bismuth chloride and rubidium chloride, takes linear chain organic amine and organic carboxylic acid as the surfactant, and adopts a weakly polar solvent as the dispersant for dispersion. The obtained nanocrystalline has good fluorescence properties, an excitation wavelength of 365nm, an emission wavelength of 437nm, and a fluorescence quantum yield up to 28.43%, at the same time also has good thermal stability, water stability and light stability. The nanocrystalline material has broad application prospects in photoelectric fields like LED, bioimaging, fluorescence detection and other aspects.
Owner:JIANGNAN UNIV

Organic electroluminescence device and preparation method thereof

An organic electroluminescence device comprises an anode, a hole injection layer, a hole transporting layer, a luminous layer, an electron transporting layer, an electron injection layer and a cathode which are overlapped in sequence, wherein the electron injection layer is made of one or more rubidium compound materials, one or more copper oxide materials and one or more of metal materials; the rubidium compound material(s) is / are one or more of rubidium carbonate, rubidium chloride, rubidium nitrate and rubidium sulfate; the copper oxide material(s) is / are one or more of cuprous iodide, cuprous oxide, copper phthalocyanine and cupric oxide; the work function of the metal materials is -4.0 eV to -5.5 eV. The light efficiency of the organic electroluminescence device is relatively high. The invention further provides a preparation method of the organic electroluminescence device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Rare earth phosphate-based orange red fluorescent powder and preparation method thereof

The invention relates to rare earth phosphate-based orange red fluorescent powder and a preparation method thereof, the chemical formula of the rare earth phosphate-based orange red fluorescent powderis RbSrGd1-xEux(PO4)2, and x is equal to 0.02, 0.04, 0.06, 0.08, 0.1, 0.12, 0.14 and 0.15. The preparation method comprises the following steps: weighing rubidium chloride, strontium carbonate, gadolinium oxide, europium oxide and diammonium hydrogen phosphate; wherein the mass ratio of rubidium chloride to strontium carbonate to gadolinium oxide to europium oxide to diammonium hydrogen phosphateis 19:19:9.5(1-x):9.5x:38, wherein x is equal to 0.02, 0.04, 0.06, 0.08, 0.1, 0.12, 0.14 or 0.15, performing grinding and uniform mixing, performing heating to 970-990 DEG C in a box-type resistancefurnace in an air atmosphere, performing heat preservation for 6-10h, performing furnace cooling to room temperature, taking out the product, and performing grinding to obtain a finished product. Thepreparation method is simple, the preparation temperature is low, the emission intensity is high, the performance is stable, Eu<3+> is used as a main activating agent, the excitable light wavelength range is wide, the excitable light wavelength range can be effectively excited by near ultraviolet light or blue light emitted by a semiconductor LED chip, sharp spectral line emission is presented, and the material belongs to an orange red light range. The fluorescent powder can emit bright orange red light under the excitation of light with the wavelength of 393 nm.
Owner:XUCHANG UNIV

Organic electroluminescence device and preparation method thereof

An organic electroluminescence device comprises an anode, a hole injection layer, a hole transport layer, a luminescent layer, an electron transport layer, an electron injection layer and a cathode which are stacked in sequence, wherein the electron injection layer consists of a rubidium compound doped layer and a passive material layer; the rubidium compound doped layer comprises a rubidium compound material and a sodium salt material doped in the rubidium compound material; the rubidium compound material is at least one of rubidium carbonate, rubidium chloride, rubidium nitrate and rubidium sulfate; the sodium salt material is at least one of sodium carbonate, sodium chloride, sodium bicarbonate and sodium fluoride; the passive material layer is made at least one of silicon dioxide, aluminum oxide, nickel oxide and copper oxide. The organic electroluminescence device is relatively high in luminescence efficiency. The invention further provides a preparation method of the organic electroluminescence device.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +2

Preparation method, product and application of lead-free halogen microcrystal

The invention relates to a preparation method of a lead-free halogen micron crystal as well as a product and application of the lead-free halogen micron crystal, and belongs to the technical field of preparation of the lead-free halogen micron crystal. The invention discloses a preparation method of a lead-free halogen micron crystal, which comprises the following steps: dissolving silver chloride (AgCl) and rubidium chloride (RbCl) in dimethyl sulfoxide, and extracting by an anti-solvent method to obtain the Rb2AgCl3 lead-free halogen micron crystal. The Rb2AgCl3 lead-free halogen microcrystal is prepared by using a normal temperature method and has the advantages of simple experimental steps and easiness in operation, compared with lead-containing halide, the prepared Rb2AgCl3 lead-free halogen microcrystal solves the problem of toxicity of lead, and particularly compared with cesium-lead-bromine, the luminous quantity of the Rb2AgCl3 lead-free halogen microcrystal prepared by the method is higher than that of cesium-lead-bromine under X rays when the Rb2AgCl3 lead-free halogen microcrystal is used as a scintillator material, and the service life of the Rb2AgCl3 lead-free halogen microcrystal is prolonged. And the process for preparing the micron crystal powder into the film is simple, and after the film is prepared, materials in the film are uniformly distributed, so that the imaging effect is better.
Owner:CHONGQING UNIV

Radiation image storage panel and method of preparing said panel

In a radiation image storage panel, as a layer arrangement of consecutive layers, a support, a sublayer and a stimulable phosphor layer having needle-shaped stimulable phosphor crystals is comprised, said sublayer is a binderless non-vapor deposited layer, at least comprising as a halide compound an inorganic alkali halide salt selected from the group consisting of sodium fluoride, sodium chloride, sodium bromide, potassium fluoride, potassium chloride, potassium bromide, rubidium fluoride, rubidium chloride, rubidium bromide, cesium fluoride, cesium chloride and cesium bromide, thereby providing good adhesiveness between phosphor layer and support.
Owner:T2PHARMA GMBH
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