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51 results about "Rubidium carbonate" patented technology

Rubidium carbonate, Rb₂CO₃, is a convenient compound of rubidium; it is stable, not particularly reactive, and readily soluble in water, and is the form in which rubidium is usually sold.

Production process for lithium-silicate-system compound

The present invention is one which provides a production process for lithium-silicate-system compound, the production process being characterized in that: a lithium-silicate compound being expressed by Li2SiO3 is reacted with a substance including at least one member of transition-metal elements that is selected from the group consisting of iron and manganese at 400-650° C. in a molten salt of a carbonate mixture comprising lithium carbonate and at least one member of alkali-metal carbonates that is selected from the group consisting of potassium carbonate, sodium carbonate, rubidium carbonate and cesium carbonate in a mixed-gas atmosphere including carbon dioxide and a reducing gas; and a positive-electrode active material for lithium-ion secondary battery that comprises a lithium-silicate-system compound being obtained by the aforesaid process.In accordance with the present invention, it becomes feasible to produce lithium-silicate-system materials, which are useful as positive-electrode active materials for lithium-ion secondary battery, and the like, by means of relatively simple and easy means.
Owner:NAT INST OF ADVANCED IND SCI & TECH +1

Method for preparing hydrogel surgical dressing and application of hydrogel surgical dressing

InactiveCN108785738ANot prone to allergiesTo promote metabolismBandagesGrowth cellIon
The invention discloses a method for preparing a hydrogel surgical dressing, and the method comprises the steps that alginic acid and rubidium carbonate are dissolved in water, magnetic stirring action is performed at set temperature, and after reaction, a rubidium alginate solution is obtained; the rubidium alginate solution is dissolved in water to obtain a sodium alginate solution, then the sodium alginate solution is mixed with the rubidium alginate solution, and an alginate solution is obtained; after calcium carbonate is uniformly dispersed into water, a dispersion solution is obtained,the dispersion solution is added to the alginate solution or the sodium alginate solution and stirred and mixed uniformly, and a pre-crosslinked solution is obtained; glucolactone is added to the pre-crosslinked solution, then cross-linking reaction is performed under the stirring condition, and the hydrogel surgical dressing is obtained after the reaction. According to the method for preparing the hydrogel surgical dressing and application of the hydrogel surgical dressing, the functions of oxidation resistance, cell metabolism promotion and bacteria growth inhibition of the rubidium ions areused, the rubidium ions are introduced into hydrogel, the antibacterial property of the hydrogel is enhanced, the cell growth can be accelerated, and wound surface healing is promoted.
Owner:CENT SOUTH UNIV

Method for cooperatively extracting potassium and rubidium from potassium-containing rock

The invention relates to the field of mineral processing and wet metallurgy, in particular to a method for cooperatively extracting potassium and rubidium from potassium-containing rock. The method comprises the following steps: crushing and grinding potassium-containing rock to obtain mineral powder; mixing the potassium-containing rock with the alkaline additive quick lime or slaked lime, addingwater to obtain a mixture, and placing the mixture in a molten salt furnace to activate the mixture through heat of fused salt; carrying out solid-liquid separation on the activated mixture to obtainfiltering liquid and filtering residue containing potassium and rubidium, wherein the filtering residue is used for producing silicon and calcium fertilizer; adding potassium carbonate aqueous solution in the filtering liquid for carbonization, and filtering to remove impurities to obtain secondary filtering liquid; carrying out evaporative crystallization on the secondary filtering liquid to obtain potassium and rubidium crystal substances; and roasting the potassium and rubidium crystal substances to contain potassium and rubidium containing enriched product, and carrying out purification and separation to obtain potassium carbonate and rubidium carbonate. Lime is adopted as the alkaline additive, the solid-liquid separation filtering liquid is alkaline, calcium ions precipitate to enter tailings, and the tailings are used for preparing silicon and calcium fertilizer. Compared with adoption of sodium hydroxide as the alkaline additive, the cost is lower, and the potassium and sodiumseparation process is eliminated in filtering liquid to facilitate purification of potassium and rubidium.
Owner:山西省岩矿测试应用研究所

Organic electroluminescent device and manufacturing method thereof

An organic electroluminescent device comprises an anode substrate, a hole injection layer, a hole transmission layer, a luminous layer, an electron transmission layer, an electron injection layer and a cathode layer, wherein the anode substrate, the hole injection layer, the hole transmission layer, the luminous layer, the electron transmission layer, the electron injection layer and the cathode layer are stacked up in sequence. The materials of the electron transmission layer include an electron transmission material and first alkali carbonate doped in the electron transmission material, the doped mass percent concentration of the first alkali carbonate is 3%-8%. The materials of the electron injection layer include a main material, an n-type material and second alkali carbonate, the n-type material and the second alkali carbonate are jointly doped in the main material, and the doped mass percent concentration of the second alkali carbonate is 5%-10%. The first alkali carbonate and the second alkali carbonate are respectively selected from one of lithium carbonate, sodium carbonate, potassium carbonate, rubidium carbonate and cesium carbonate. The organic electroluminescent device is higher in luminous efficiency. In addition, a manufacturing method for the organic electroluminescent device is further provided.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Lithium slag solid waste resource recycling process

The invention relates to the technical field of lithium slag solid waste recycling, and discloses a lithium slag solid waste resource recycling process which comprises the following steps: S1, acid dissolution and separation: uniformly mixing lithium slag with water to infiltrate the lithium slag, and adding strong acid or composite acid to dissolve metal oxide in the lithium slag to generate acid salt; hydrolyzing to precipitate insoluble substances, and separating to remove insoluble and insoluble solids; s2, iron element removal: adding liquid caustic soda into the mixed salt solution, stirring, adjusting the pH value to 3-3.5, and centrifugally rinsing iron-containing precipitates to obtain iron mud; s3, aluminum element removal: adding liquid caustic soda into the mixed salt solution, stirring, adjusting to 6-7, completely precipitating aluminum ions, and separating the precipitate to obtain aluminum mud; s4, removal of heavy metal elements: a heavy metal collecting agent is added into the mixed salt solution, so that the heavy metals form insoluble substances, and the insoluble substances are precipitated, separated and removed; and S5, targeted separation: carrying out targeted separation on the residual salt solution to prepare potassium sulfate, sodium sulfate, lithium carbonate, cesium carbonate and rubidium carbonate.
Owner:珠海广隆新材料科技有限公司

Preparation method of high-purity anhydrous rubidium iodide

The invention discloses a preparation method of high-purity anhydrous rubidium iodide. The preparation method of the high-purity anhydrous rubidium iodide comprises the following steps: A, under the condition of normal temperature, adding 400-600g of rubidium carbonate into a reaction container, slowly adding pure water with the mass liquid-solid ratio of (2-4): 1 while stirring, and stirring the solution for 10-30 minutes until the rubidium carbonate is completely dissolved; B, at normal temperature, filtering the solution obtained in the step A while the solution is hot by adopting a sand core funnel of 1-5 microns, and removing alkaline insoluble substances and other impurities to obtain a clear and transparent rubidium carbonate solution; C, at normal temperature, slowly pouring an iodine simple substance with the molar ratio of Li to I being 1:1 into the rubidium carbonate solution obtained in the step B under a stirring condition to carry out disproportionation reaction, and stirring the solution for 15-20 min to generate a dark brown solution. The preparation method of the high-purity anhydrous rubidium iodide is simple and practical in process, low in equipment investment, low in production cost, high in yield, high in economic value, small in environmental pollution and high in production safety.
Owner:GANFENG LITHIUM CO LTD

Preparation method of silver-nickel electric contact material

InactiveCN112048632ALow average arc energyArc energy is smallContactsRubidium carbonateMetallurgy
The invention discloses a preparation method of a silver-nickel electric contact material. The preparation method comprises the following steps that (1) silver powder and nickel powder are sieved, andsilver-nickel mixed powder is prepared; (2) the silver-nickel mixed powder prepared in step (1) is mixed with rubidium carbonate powder, lanthanum powder and molybdenum carbide powder in a plough shovel type powder mixing machine, and silver-nickel-rubidium carbonate-lanthanum-molybdenum carbide mixed powder is prepared; (3) the silver-nickel-rubidium carbonate-lanthanum-molybdenum carbide mixedpowder prepared in step (2) is pressed into an ingot on a cold isostatic press, and a silver-nickel-rubidium carbonate-lanthanum-molybdenum carbide ingot is prepared; and (4) the silver-nickel-rubidium carbonate-lanthanum-molybdenum carbide ingot prepared in step (3) is sintered and extruded into a wire or a plate under nitrogen protection, the wire is used for cold heading to make rivet contacts,the plate is rolled and punched to produce sheet contacts, and the silver-nickel electric contact material is prepared. The preparation method is simple in preparation process, short in production period, high in material utilization rate, suitable for large-scale production and capable of being widely applied and popularized.
Owner:浙江耐迩合金科技有限公司

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 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

Method for preparing ternary cathode material of rubidium-doped lithium ion battery

The invention discloses a method for preparing a ternary cathode material of a rubidium-doped lithium ion battery. The method comprises the following steps of: weighing an appropriate amount of rubidium carbonate as a rubidium source and dissolving the rubidium carbonate in pure water to obtain an aqueous solution of rubidium, according to the doping amount of rubidium being in a range of 0.1%-1%(wt%), calculating the desired ternary material precursor, adding the ternary material precursor into the aqueous solution of rubidium, and adding pure water to a suitable solid content; evaporating and drying the above solid-liquid mixture to obtain mixed rubidium powder B; and mixing the mixed rubidium powder B with a lithium source, and performing high-temperature sintering, crushing and iron removal and sieving to obtain a ternary material of a rubidium-doped lithium ion battery. The method for preparing a ternary cathode material of a rubidium-doped lithium ion battery does not need an organic solution, is high in production efficiency, uniform in distribution of the rubidium of the ternary material and regular in shape.
Owner:深圳市新创材料科技有限公司

Preparation method of biological active hydroxylamine oxalate vanadium complex crystal

The invention discloses a preparation method of a biological active hydroxylamine oxalate vanadium complex crystal, and the method uses Rb <+ >ions as external balance ions for participating into the complex, and comprises the following steps: 1, at 0-4 DEG C, rubidium carbonate, ammonium metavanadate, oxalic acid, hydroxylamine hydrochloride and water are stirred and dissolved in a container I, the pH value of the solution is adjusted by a hydrochloric acid solution to obtain a pale yellow clear solution; 2, anhydrous alcohol is added into another container II, the container I filled with the reaction liquid in the step 1 is put in the container II, the container II is sealed, and placed in a refrigerator for standing for 2 to 4 days, and a colorless flaky crystal is precipitated on the container I bottom; and 3, the crystal precipitated on the container I bottom is taken out, washed with deionized water for a plurality of times, then is successively washed respectively with the anhydrous ethanol and ether for a plurality of times, and then is put in a dryer to obtain dry and pure crystal, namely the biological active hydroxylamine oxalate vanadium complex crystal. The obtained biological active hydroxylamine oxalate vanadium complex crystal is good in biological activity, and the preparation method is simple, easy in operation, and short in time.
Owner:EAST CHINA NORMAL 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 metal doped layer; the rubidium compound doped layer comprises a rubidium compound material and a metal material I 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 work function of the metal material I is -2.0 eV to -3.5 eV; the metal doped layer comprises a metal material II and a lithium salt material doped in the metal material II; the work function of the metal material II is -2.0 eV to -3.5 eV; the lithium salt material is at least one of lithium oxide, lithium fluoride, lithium chloride and lithium bromide. 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
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