15 results about "Rubidium chloride" patented technology

The invention discloses a method for preparing high-purity rubidium chloride from rubidium crude salt, which comprises the following steps: (1) obtaining an acidic rubidium-containing solution from rubidium crude salt, and adding a precipitant to obtain a precipitate; (2) dissolving the precipitate to obtain a rubidium-containing double salt solution; (3) recrystallizing to obtain crystals; (4) washing the crystals to obtain high-purity crystals; (5) adding the high-purity crystals into water to carry out size mixing, and then adding ammonia water to react completely to obtain a solution containing rubidium chloride; according to the method for preparing the high-purity rubidium chloride from the rubidium crude salt, the purity of an obtained final product can reach 99.99% or above, the technological process is simple, the production process is environmentally friendly, raw material consumption and production cost are low, and a feasible technical scheme is provided for large-scale industrial production of the high-purity rubidium chloride.

The present invention discloses a process for recovering rubidium and cesium from by-products of lithium extraction from lepidolite, comprising the following steps: S1. Take the mother liquor of lithium extraction, add concentrated sulfuric acid to adjust the pH to precipitate potassium sulfate crystals, and filter the supernatant; S2. Feed the supernatant into a multi-stage countercurrent extraction device for extraction; S3. Wash the extraction phase A with sodium hydroxide solution; S4. Back-extract the rubidium- and cesium-loaded organic phase with hydrochloric acid, and evaporate and crystallize the rubidium chloride solution to obtain rubidium chloride; S5. Back-extract the cesium-loaded organic phase with hydrochloric acid, and evaporate and crystallize the cesium chloride solution to obtain cesium chloride; S6. Extract the rubidium-containing washing solution with 4-tert-butyl-2-(α-methylbenzyl)phenol solution; S7. Back-extract the extraction phase B with hydrochloric acid solution to obtain an organic phase and a rubidium chloride solution, and evaporate and crystallize the rubidium chloride solution to obtain rubidium chloride. The present invention extracts rubidium and cesium in the alkali leaching solution from the mother liquor of lithium extraction with 4-tert-butyl-2-(α-methylbenzyl)phenol, and uses a multi-stage countercurrent extraction device to significantly improve the extraction efficiency and extraction effect.

A simple and efficient method for preparing high-purity rubidium chloride includes the following steps: Adding crude rubidium salt to glacial acetic acid, heating and stirring to dissolve, filtering to remove insoluble impurities, yielding a crude rubidium salt solution in glacial acetic acid; adding a certain amount of antimony trichloride solution to the crude rubidium salt solution in glacial acetic acid, stirring the reaction to obtain a small amount of pale yellow precipitate and solution until the reaction reaches equilibrium, yielding a clear liquid and precipitate, the precipitate being used to prepare high-purity cesium salt; secondary precipitation: adding a certain amount of tin tetrachloride solution in glacial acetic acid to the clear liquid, stirring the reaction to obtain a white precipitate and solution; standing, filtering, and washing: cooling and standing the solution until the reaction reaches equilibrium, filtering, washing the precipitate with glacial acetic acid, yielding a precipitate and washing liquid; double salt decomposition: adding high-purity water to the precipitate to form a slurry, then adding ammonia to adjust the pH value, filtering to obtain tin hydroxide precipitate and rubidium chloride solution; sending the filtrate for testing: evaporating the qualified rubidium chloride solution to dryness, calcining to obtain rubidium chloride; recrystallization: obtaining the high-purity rubidium chloride product. It has the advantages of effectively removing cesium ions from crude rubidium salt and avoiding the influence of alkali metal ions on the purity of the final product, without loss, and with high product purity.

The invention relates to the field of preparation methods of rubidium chloride, in particular to a method for preparing high-purity rubidium chloride from manganese-series iron alloy fly ash trace rubidium. The method comprises the following steps: water leaching, filter pressing, sulfuric acid preparation, refined filtration, evaporation, concentration and crystallization, centrifugal separation, extraction liquid preparation, extraction, washing, reverse extraction, concentration and crystallization, filtration and drying. According to the method, the trace rubidium element is efficiently separated and enriched from the fly ash with complex components and high potassium and sodium content, and finally the high-purity rubidium chloride product is obtained. The core breakthrough of the method lies in that efficient separation of potassium, sodium and rubidium ions is achieved through a series of precisely controlled unit operations, especially high-selectivity separation of the extraction section, the separation rate exceeds 99%, the extraction purity and recovery efficiency of rubidium are greatly improved, and a reliable way is provided for high-value resource utilization of the manganese-series iron alloy fly ash.

The application discloses a method for preparing high-purity rubidium chloride from rubidium coarse salt, which comprises the following steps: (1) obtaining an acid rubidium-containing solution from the rubidium coarse salt, adding a precipitant to obtain a precipitate; (2) dissolving the precipitate to obtain a complex salt solution containing rubidium; (3) recrystallizing to obtain a crystal; (4) washing the crystal to obtain a high-purity crystal; (5) adding the high-purity crystal into water to perform slurry preparation, and then adding ammonia water to react until the reaction is completed, so as to obtain a solution containing rubidium chloride; and (6) performing post-treatment on the solution containing rubidium chloride. The method for preparing high-purity rubidium chloride from rubidium coarse salt has the advantages that the purity of the final product can reach more than 99.99%, the technological process is simple, the production process is green and environment-friendly, the raw material consumption and production cost are low, and a feasible technical scheme is provided for large-scale industrial production of high-purity rubidium chloride.

The present application discloses a rubidium chloride doped perovskite, a perovskite solar cell and a preparation method thereof, wherein the rubidium chloride doped perovskite comprises a perovskite main body and (PbI2)2RbCl, and an XRD characteristic peak of (PbI2)2RbCl is located at 11.3°. The perovskite solar cell comprises a substrate, an electron transport layer, a perovskite light absorption layer, a passivation layer, a hole transport layer and a metal electrode which are sequentially stacked.

This invention belongs to the field of comprehensive lithium slag recycling technology, and provides a method for the comprehensive recovery of lithium, rubidium, cesium, niobium, and tantalum from lithium slag. The method includes: magnetically separating lithium slag to obtain niobium-tantalum concentrate and tailings; sequentially roasting and alkali leaching the tailings to obtain leaching residue and leachate; adding a lithium adsorbent to the leachate for lithium adsorption to obtain a lithium-rich adsorbent and a lithium-removed liquid; desorbing the lithium-rich adsorbent to obtain a lithium-containing solution; then adding sodium carbonate to the lithium-containing solution to obtain lithium carbonate; and extracting and back-extracting the lithium-removed liquid to obtain rubidium chloride and cesium chloride. This invention enables the full recycling and utilization of lithium slag, recovering rubidium, cesium, niobium, and tantalum rare metals simultaneously with lithium, achieving resource-based treatment of solid waste. The lithium recovery rate reaches over 90%, and the rubidium and cesium recovery rates reach over 70%. The obtained lithium carbonate can be directly used, and the leaching residue can be directly used as cement raw material, thus improving the comprehensive utilization value of lithium slag.

The present invention relates to the field of perovskite solar cells, and discloses a uniformly oriented quasi-single crystal perovskite film and its preparation method and application. The preparation method comprises: using at least one of N,N-dimethylpropylene urea, methylphenyl sulfoxide, and ethylsulfinylethane as a solvent additive and N,N-dimethylformamide to prepare an organic mixed solvent, dissolving lead iodide and cesium iodide and / or rubidium chloride in the organic mixed solvent and then coating, heating, to obtain a lead iodide film; depositing an organic amine salt solution on the lead iodide film, and annealing to obtain a perovskite film. The present invention reduces the reactivity of the lead iodide precursor by introducing solvent additives with different coordination abilities, effectively delaying the kinetic process of the perovskite formation reaction, thereby promoting the full reaction of the organic amine salt and the lead iodide intermediate phase, and effectively solving the problems of residual lead iodide impurities and poor crystallization quality in the perovskite film in the traditional two-step method.

The application discloses use of rubidium chloride in preparation of a medicine for treating Parkinson syndrome. The rubidium chloride has a protective effect on MPTP-induced Parkinson syndrome in mice, and provides a theoretical basis for preventing and treating Parkinson syndrome.

The invention discloses an electrolyte for preparing metal rubidium through low-temperature electrodeposition and a preparation method of the metal rubidium, and belongs to the technical field of preparation of alkali metal rubidium. The electrolyte is composed of an aprotic strong polar solvent triethyl phosphate and anhydrous rubidium chloride or anhydrous rubidium nitrate, and the molar concentration of rubidium chloride or rubidium nitrate in the electrolyte is 0.1-1.5 mol / L; the preparation method comprises the following steps: adding electrolyte into an electrolytic bath, setting an anode as a high-purity graphite plate, setting a cathode as a high-purity tin plate or a high-purity copper plate or a high-purity aluminum plate, setting constant-potential electrolytic voltage as-3 to-4.5 V vs Ag, electrifying and electrolyzing at-10 to 25 DEG C for at least 45 minutes, depositing metal rubidium on the cathode plate, and sealing the deposited metal rubidium with argon or packaging the deposited metal rubidium with paraffin oil. According to the method, the metal rubidium can be prepared through electro-deposition at the low temperature by means of an electrolyte system composed of rubidium chloride or rubidium nitrate and triethyl phosphate, the technological process is simple and short, energy consumption is low, the product purity is high, and the purity of the metal rubidium is 99.9% or above.

The invention discloses a method for preparing rubidium chloride from rubidium desorption liquid obtained by an adsorption method. According to the method, a membrane electrolysis coupling extraction method is adopted, electrons are used as driving force, and while impurities are removed, rubidium is extracted and separated by electrolyzing rubidium desorption liquid, generating alkali and cooperating with subsequent t-BAMBP. According to the method, the advantages of an adsorption method and an extraction method can be integrated and complement each other, magnesium ions in the rubidium desorption solution are precipitated by electrolyzing the rubidium desorption solution, an alkaline solution is formed at the same time, introduction of foreign ions can be avoided, the counter-current extraction level is reduced, the use amount of an extraction agent is reduced, and energy conservation and consumption reduction are achieved. The technology provided by the invention solves the technical problem that high-purity RbCl cannot be obtained from the salt lake brine by adopting a single adsorption method or a single extraction method.

The invention discloses a series of cubic-structure rubidium-cesium-rhenium-sulfur-iodine crystals and a series of trilateral-structure rubidium-cesium-rhenium-sulfur-chlorine crystals and preparation methods thereof, and belongs to the technical field of photoelectric functional materials and preparation thereof. The crystal compound provided by the invention comprises a series of (Rb < 1-x > Csx) < 6 > Re6S8I8 with a cubic structure and a series of (Rb < 1-x > Csx) < 5 > Re6S8Cl7 with a trilateral structure. The preparation process of the single crystal sample comprises the following steps: taking rubidium iodide, cesium iodide, rubidium chloride, cesium chloride, elemental metal rhenium, sulfur, iodine and rhenium pentachloride as raw materials, mixing the raw materials, assembling, packaging in vacuum, heating, cooling and the like to obtain the single crystal sample. The rhenium-sulfur cluster-based optical crystal compound prepared by the method disclosed by the invention is high in purity and excellent in crystal quality, can be used as a key material in the fields of photoluminescence and light emitting diodes, and has a wide application prospect.

The invention relates to the technical field of adsorption materials, in particular to an LSX molecular sieve low-dew-point adsorption material for deep dehumidification and a preparation method of the LSX molecular sieve low-dew-point adsorption material. According to the adsorption material, a Na-LSX molecular sieve is used as a matrix, and is matched with lanthanum nitrate and rubidium chloride composite rare earth metal salt and compounded with a functionalized silane reagent to form a synergistic adsorption structure of the Na-LSX molecular sieve, the lanthanum nitrate and the rubidium chloride. The preparation process comprises the steps of synthesis of a rare earth-silane coordination precursor, reaction of a matrix and the precursor, gradient activation and the like, and is mild in process condition, free of complex equipment and easy to control. The material is high in adsorption capacity under extremely low humidity, low in regeneration temperature, low in energy consumption and excellent in cycling stability, extremely low dew point output can be stably achieved, and the strict deep dehumidification requirements in the fields of lithium battery production, aerospace and the like can be met.

The present invention relates to the field of extraction technology, and in particular to a method for separating rubidium and cesium from a rubidium-cesium enriched material through phase transformation. The method comprises the following steps: mixing the rubidium-cesium enriched material with water, adjusting the pH to 9.0-14.0, and then mixing and reacting with sodium phosphate to obtain a mixture; and performing solid-liquid separation on the obtained mixture to obtain a CsMgPO4 precipitate and a rubidium-containing solution. The present invention utilizes a rubidium-cesium enriched material as the subject, and uses phase transformation to separate rubidium and cesium from each other, while also enabling the recycling of anions. The cesium chloride obtained using the method provided by the present invention has a purity of 98% and a yield of 99%. The purity of the obtained rubidium chloride is 95% and the yield is 97%.

The present application relates to the technical field of mineral processing, and proposes a valuable element extraction process for blast furnace bag dust of a steel plant, comprising the following process: raw material crushing, carbon powder flotation of the crushed material through a flotation machine, tailings generated in the carbon powder flotation process of the flotation machine into a magnetic separator, slurry containing iron powder selected by the magnetic separator, the slurry pumped into a fifth cyclone, the slurry with iron powder in the fifth cyclone further through stirring and vacuum filtration to obtain iron powder, sulfuric acid is added during stirring for pickling, evaporation to obtain zinc sulfate, and through cyclic separation, carbon powder and iron powder can be separated multiple times, and sodium chloride, potassium chloride and rubidium chloride can be further separated in the overflow solution of the above substances. Through the above technical scheme, the technical problem of low yield and type of the extracted material in the blast furnace bag dust of the steel plant in the related art is solved.